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Главная страница Справка Коды ЭШД D90

Коды ЭШД

D87 D88 D89

D90

D91 D92 D93

D90

Код энциклопедии шахматных дебютов (ЭШД)

Описание

RU: Защита Грюнфельда: 4 Nf3 Bg7
EN: Grünfeld: 4 Nf3 Bg7 sidelines

Ходы

1. d4 Кf6 2. c4 g6 3. Кc3 d5 4. Кf3 Сg7 5. c:d5

Дебюты

Защита Грюнфельда

[Event "Bangkok op 14th"]
[Site "Bangkok"]
[Date "2014.04.19"]
[Round "9"]
[White "Atalik, Suat"]
[Black "Laylo, Darwin"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2562"]
[BlackElo "2515"]
[Annotator "Atalik,S"]
[PlyCount "80"]
[EventDate "2014.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 161"]
[Source "ChessBase"]
[SourceDate "2014.07.16"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 (4. e3 g6 5. Nf3 Bg7 {is the real
Schlechter Slav.}) 4... g6 {A strange version of the Schlechter Slav.} 5. cxd5
{Since Black's bishop is deployed by a fianchetto this exchange is justified.}
cxd5 6. Bf4 (6. Bg5 Ne4 7. Bh4 Bg7 8. e3 Nxc3 9. bxc3 O-O 10. c4 Nc6 11. cxd5
Qxd5 12. Be2 e5 13. dxe5 Qa5+ 14. Qd2 Qxd2+ 15. Kxd2 Nxe5 16. Nd4 Nc6 17. Nxc6
bxc6 18. Rac1 Rb8 $40 {does not scare Black.}) 6... Bg7 7. e3 O-O 8. Bd3 {
If I had known what would have happened, I could have gone} ({for} 8. Be2 $142
Nc6 9. h3 (9. O-O $6 Nh5 10. Bg5 h6 11. Bh4 g5 12. Bg3 Nxg3 13. hxg3 e6 14. Ne1
e5 $1) (9. Ne5 Qb6 10. a3 $14) 9... Ne4 10. Rc1 $14) 8... Nc6 9. h3 (9. h4 $5
Bg4 {may sometimes come from the modern h4-line in the Grьnfeld answered by c6.
}) 9... Nd7 $1 {It was only during this game that I became aware of the
existence of this excellent pawn sac.} (9... Bf5 $2 10. Bxf5 gxf5 11. g4 $16)
10. O-O ({I did not like the looks of} 10. Nxd5 Qa5+ (10... e5 11. dxe5 Ndxe5
$44) 11. Nc3 e5 12. dxe5 Ndxe5 13. Nxe5 Nxe5 14. Be2 Be6 15. O-O Nc4 $44) (10.
Be2 e5 (10... Nb6 11. O-O) 11. dxe5 Ndxe5 12. Qxd5 Nxf3+ 13. Bxf3 Qb6 $44)
10... e5 11. dxe5 Ndxe5 12. Be2 $6 {The real mistake should be spotted around
here.} (12. Nxe5 Nxe5 13. Be2 Be6 14. Nb5 $1 $14) 12... Nxf3+ $1 ({No second
chance for} 12... Be6 13. Nxe5 Nxe5) 13. Bxf3 d4 14. exd4 (14. Nd5 dxe3 15.
Bxe3 Bxb2 16. Rb1 Bg7 17. Qa4 $44) 14... Nxd4 $1 (14... Qxd4 15. Qxd4 Nxd4 16.
Bd5 $14) 15. Be4 $5 {A strange decision!} (15. Bd5 Bf5 $5 {is similar to the
game continuation.} (15... Qb6 16. Be3 Rd8 {was the real reason why I did not
choose this obvious line.})) 15... Bf5 $5 {It is not everyday that I have been
shocked over the chess board by my opponent's moves; this time I was shocked
by my own ones.} (15... Qa5 16. Re1 Bf5 17. Qd3 $13) (15... Qb6 16. Be3 Be6 17.
Qa4 $13 {does not satisfy either.}) 16. Bxf5 {I was scared to win the pawn and
exchange after a prolonged thought.} (16. Bxb7 Rb8 17. Bxb8 Qxb8 18. Ba6 (18.
Be4 Qxb2 19. Bxf5 Nxf5 20. Ne4 $11 (20. g4 $2 Qxc3 21. Rc1 Qxh3 22. gxf5 Be5
$19)) 18... Rd8 19. Qc1 Be5 $44 (19... Nc2 20. Rb1 Nb4 21. Bc4 Bxb1 22. Qxb1
Qf4 23. Bb3 Be5 24. g3 Qf3 $44)) 16... Nxf5 17. Rc1 Qxd1 (17... Qb6 18. Rc2 $13
) 18. Rfxd1 Rfd8 19. b3 Rxd1+ 20. Nxd1 Nd4 21. Kf1 Nc6 22. Ne3 a5 $1 {Another
tactical solution to the little problems Black had.} 23. g3 $5 (23. Nc4 a4 24.
Nd6 axb3 25. axb3 Nd4 26. b4 Ne6 27. Be3 Bf8 $11) 23... a4 24. bxa4 (24. Nc4
axb3 25. axb3 Bf8 $11) 24... Rxa4 25. Rb1 Rxa2 (25... Rb4 26. Rxb4 Nxb4 27. a4
f5 $11) 26. Rxb7 Ra8 27. Ng4 h5 28. Nh6+ Bxh6 29. Bxh6 Nd8 $11 {Nothing is
left.} 30. Rb5 Ne6 31. Be3 Rc8 32. Kg2 Rc4 33. Rd5 Kg7 34. Kf3 Kf6 35. g4 hxg4+
36. hxg4 g5 37. Rf5+ Kg6 38. Re5 Ra4 39. Kg3 Rc4 40. Ra5 Rb4 1/2-1/2

[Event "GRE-chT 32nd"]
[Site "Kallithea"]
[Date "2003.07.04"]
[Round "1"]
[White "Atalik, Suat"]
[Black "Gustafsson, Jan"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2599"]
[BlackElo "2570"]
[Annotator "Atalik,S"]
[PlyCount "83"]
[EventDate "2003.07.04"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 {My Bundesliga teammate and future trainee Jan
goes for Gruenfeld Defence as I have expected. Since the pairings for the
preliminary rounds were made in advance I had time to prepare something
against this.} 4. Nf3 Bg7 5. Qa4+ $5 {A side line.} Bd7 6. Qb3 dxc4 7. Qxc4 O-O
8. e4 b5 $1 {This has the reputation of being an immediate equalizer.} (8...
Na6 9. e5 Ne8 10. Be2 c6 $14) 9. Nxb5 Nxe4 10. Qxc7 Nc6 11. Bd3 $1 Nb4 12. Bxe4
Bxb5 13. Qxd8 Raxd8 14. Bd2 Nd3+ 15. Bxd3 Bxd3 16. Bc3 Be4 17. Ke2 $1 $146 {
This poses more problems than defending the pawn for black.} (17. Rd1 Bxf3 18.
gxf3 Rd5 19. Ke2 Rfd8 20. Rd2 e6 21. Rhd1 Rh5 $11 {Giorgadze-Stohl,Senec 1998.}
) 17... Bxf3+ 18. Kxf3 Bxd4 19. Bxd4 Rxd4 20. Rhd1 $14 {White is obviously
better in the coming endgame but black seems to have enough ressources.} Rb4 $1
{First black has to gain sometime by avoiding rooks exchange.} 21. b3 a5 (21...
Rb7 22. Rac1 $14) 22. Ke3 (22. Rac1 a4 23. Rc4 Rfb8 24. Rdd4 Rxc4 25. bxc4 Rb2
26. c5 Rc2 $1 (26... Rxa2 $1 27. Rc4) 27. Rxa4 Rxc5 $11) 22... e5 23. Rac1 a4
24. Rc4 Rfb8 25. Rxb4 Rxb4 26. bxa4 Rxa4 27. Ra1 {Rook behind the passer is
the maxim, but in this case I need a lot of time to kick blacks rook out of
its post by my king.} f5 28. Kd3 Kf7 29. Kc3 Ke6 30. Kb3 Ra6 31. a4 e4 32. a5
f4 33. Kc4 Ke5 34. Ra4 g5 35. Kb5 Ra8 36. a6 Kd5 {Black could have immediately
equalize.} (36... e3 37. f3 Kd5 38. Kb6 e2 39. Re4 Rb8+ 40. Kc7 Rb2 41. a7 Ra2
42. Kb7 Rb2+ $11) 37. Kb6 e3 38. f3 Rb8+ 39. Kc7 Ra8 $6 ({Once again} 39... e2
40. Re4 (40. Kxb8 e1=Q 41. a7 Qe8+) 40... Rb2 41. a7 Rc2+ $11) 40. Kb6 $2 {
Giving up the fight way too early!} (40. Kb7 Re8 41. a7 e2 42. Re4 Rxe4 43.
fxe4+ Kd4 44. a8=Q e1=Q 45. Qd8+ Ke3 46. e5 Kf2 $1 47. Qxg5 Qe4+ 48. Kc7 h6 $1
49. Qg7 Qxg2 50. Qxh6 f3 51. e6 Kg1 52. Qc1+ Kxh2 53. e7 Qg3+ 54. Kd7 Qg4+ 55.
Kd8 Qd4+ $11) 40... Rb8+ 41. Kc7 Ra8 42. Kb6 $11 1/2-1/2

[Event "EU-ch 7th"]
[Site "Kusadasi"]
[Date "2006.04.06"]
[Round "3"]
[White "Atalik, Suat"]
[Black "Baramidze, David"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2632"]
[BlackElo "2545"]
[Annotator "Atalik,S"]
[PlyCount "55"]
[EventDate "2006.04.04"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "TUR"]
[SourceTitle "CBM 111 Extra"]
[Source "ChessBase"]
[SourceDate "2006.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2006.05.09"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 $5 {This funny move became
popular these days.} Bg7 6. e4 Nb6 ({There is nothing wrong even with} 6...
Nxc3 7. Bxc3 O-O $11) 7. Be3 O-O 8. Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Ne5
$6 (11... Na5 $1 12. Bd4 Qd6 13. Bxg7 Kxg7 14. Rc1 Qf6 15. b3 c6 16. Qd2 cxd5
17. exd5 $13) 12. Qb3 Qd7 $4 {A terrible move.} (12... c6 13. O-O-O $14 (13. f4
Ned7 14. dxc6 (14. e5 $2 cxd5 15. Nxd5 Nc5) 14... bxc6 15. e5 $14)) 13. h3 $1
$18 {Ne5 is a liabilityin black's position.} Qc8 14. f4 Ned7 15. a4 Qb8 16. a5
Nc8 17. e5 c6 18. dxc6 $5 {There are many ways to develop the advantage in
this position.I just wanted to open lines.} (18. O-O $18) 18... bxc6 19. Qxb8
Rxb8 20. O-O-O Rb7 21. Rd2 g5 22. Rg1 $1 {A good piece of calculation.} gxf4
23. Bxf4 Kh8 24. Rgd1 $1 Nc5 (24... Rb4 25. Bg3 (25. Rxd7 Rxf4 26. Rd8 $18)
25... Bh6 26. f4 Rxf4 27. Kc2 $1 $18) 25. Rd8 Ne6 26. Rxf8+ Bxf8 27. Be3 Rc7
28. Bg4 $18 {Black is completely boxed.} 1-0

[Event "NED-ch59"]
[Site "Leeuwarden"]
[Date "2004.07.01"]
[Round "2"]
[White "Van Wely, Loek"]
[Black "L'Ami, Erwin"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2651"]
[BlackElo "2478"]
[Annotator "Atlas,V"]
[PlyCount "52"]
[EventDate "2004.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[EventCategory "12"]
[SourceTitle "CBM 102"]
[Source "ChessBase"]
[SourceDate "2004.09.23"]
[SourceVersion "1"]
[SourceVersionDate "2004.09.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 Bc6 7. e3 O-O 8. Ne5
a5 9. Nxc6 bxc6 10. Qb7 Na6 11. Qxc6 e5 12. dxe5 Nb4 13. Qa4 Ng4 14. cxd5 Bxe5
15. Be2 Qf6 16. Ne4 Qf5 17. f3 {Black obviously lost the opening battle.
Schwarz hat den Erцffnungskampf offensichtlich verloren.} Nxh2 18. a3 Nxd5 19.
g4 (19. f4 {was another winning continuation. war eine weitere
Gewinnfortsetzung}) 19... Qe6 20. f4 Bxf4 21. exf4 Nxg4 22. Bd2 Rfe8 23. O-O-O
Nge3 24. Ng5 Qf5 25. Rxh7 Nb4 26. Qb3 $4 ({A terrible blunder in a winning
position. White had several winning continuations in this position, e.g.: Ein
schrecklicher Bock in Gewinnstellung. In dieser Stellung hatte WeiЯ diverse
Siegesfortsetzunungen, z.B.} 26. axb4 axb4 27. Rdh1 Rxa4 28. Rh8+ Kg7 29. R1h7+
Kf6 30. Rxf7#) ({or} 26. Bxe3 Rxe3 27. Rxf7 Qc5+ 28. Kb1 Rxe2 29. axb4 {
, winning. und gewinnt.}) {[%tqu "En","White's last imprudent move has allowed
Black to conclude the game with a nice mate combination. Can you find it?",
"Try to deflect the enemy queen from protecting the c2-square.","Sacrifice
your knight!","b4a2","This knight sacrifice, which was obviously overlooked by
Van Wely, leads to a nice mate final.",4,"De","Der letzte sorglose Zug des
WeiЯen ermцglicht Schwarz, die Partie mit einer hьbschen Mattkombination zu
beenden. Sehen Sie sie?","Versuchen Sie, die feindliche Dame von der Deckung
des Feldes c2 abzulenken.","Opfern Sie Ihren Springer!","b4a2","Dieses Opfer,
von Van Wely offensichtlich ьbersehen, fьhrt zu einem schцnen Mattfinale.",4]}
26... Na2+ $1 {[%csl Ga2,Rb3,Rc1,Rc2,Ge3,Gf5]} ({A nice game conclusion. White
resigned in view of Ein hьbscher Partieschluss. WeiЯ gab sich geschlagen
angesichts von} 26... Na2+ 27. Qxa2 Qc2#) 0-1

[Event "RUS-ch sf 58th"]
[Site "Kazan"]
[Date "2005.09.06"]
[Round "4"]
[White "Iljushin, Alexei"]
[Black "Tseshkovsky, Vitaly"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2531"]
[BlackElo "2599"]
[Annotator "Atlas,V"]
[PlyCount "76"]
[EventDate "2005.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 109"]
[Source "ChessBase"]
[SourceDate "2005.11.14"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. Bxf3 Ne5 12. Be2 Nec4 13. Bc1 c6 14. dxc6
bxc6 15. Qc2 Qd4 16. O-O Rfd8 17. a4 Na5 18. Rb1 Qb4 19. Bd1 c5 20. Bd2 Qc4 21.
Be1 Nc6 22. b3 Qe6 23. f4 Nb4 24. Qe2 Nd3 25. e5 c4 26. Ne4 Nxe1 27. Qxe1 Qd5
28. Kh1 Qd4 29. Bc2 Nd5 30. Rf3 Rab8 31. b4 $2 ({This careless move is
ruthlessly refuted by Black. After} 31. Rd1) ({or} 31. bxc4 {the chances are
equal.}) {[%tqu "En","White's last move allows for a nice refutation. How
should Black continue?","Exploit a weakness of White's back rank.","Use your
knight for the decisive blow!","d5b4","",5]} 31... Nxb4 $1 {[%csl Rb1,Gb4,Rd1,
Gd4,Gd8,Re1,Rh1]} (31... Rxb4 {is less efficient, as after} 32. Rd1 Qb6 33. Nd6
$1 {White retains counterchances. The text move yields Black a decisive
advantage.}) 32. Rxb4 (32. Bd1 Nd3 {is hopeless for White.}) 32... Rxb4 33. h4
({If} 33. Qxb4 {, then} Qd1+ {, with mate in three.} ({or} 33... Qa1+)) 33...
Rb2 34. Rc3 Bh6 35. g3 f5 36. exf6 exf6 37. Qe2 f5 38. Rxc4 Qd5 0-1

[Event "ISR-ch"]
[Site "Ramat Aviv/Modiin"]
[Date "2000.12.27"]
[Round "10"]
[White "Avrukh, Boris"]
[Black "Tseitlin, Mark D"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2625"]
[BlackElo "2494"]
[Annotator "Avrukh,B"]
[PlyCount "61"]
[EventDate "2000.12.17"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[EventCategory "11"]
[SourceTitle "CBM 081"]
[Source "ChessBase"]
[SourceDate "2001.03.20"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.20"]
[SourceQuality "1"]

1. Nf3 {Ftacnik} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7.
Bg5 {In my opinion this line is very unpleasant for Grunfeld players.} O-O {
I think, after this move black's counterplay is very problematic and he should
play a litle bit passive position.} (7... a5 8. Rd1 a4 9. Qc2 O-O 10. e3 Nc6 (
10... a3 11. bxa3 Nc6 12. Nb5 $14) 11. a3 $1 Bf5 12. Bd3 Bxd3 (12... Be6 13.
Qe2 Bb3 14. Rc1 $14) 13. Rxd3 Qd7 14. O-O Na5 15. Ne4 $16 {1-0 Chuchelov,
V-Mohandesi,S/Cappelle la Grande 1999/CBM 70/[Chuchelov] (33)}) (7... Be6 $142
$5) (7... h6 $142 $5) 8. Rd1 Bg4 (8... c6 9. e4 (9. e3) 9... Bg4 (9... h6 10.
Be3 N8d7 11. Be2 Nf6 12. O-O Qc7 13. Ne5 (13. h3 $14) 13... Be6 14. Qc2 Nfd7
15. Nd3 $14 {1-0 Pelletier,Y-Khamrakulov,I/Anibal Open ESP 2001/The Week in
Chess 323 (64)}) 10. Be2 N8d7 11. O-O h6 12. Bh4 Qe8 {[%cal Ge7e5]} 13. a4 e5
14. d5 cxd5 15. exd5 g5 (15... e4 $142) 16. Bg3 f5 17. a5 Nc5 18. Qa3 Nbd7 19.
b4 Na6 20. h3 Bh5 21. Rfe1 {[%cal Gf3e5]} f4 22. Bh2 {[%csl Ge4]} Qg6 23. d6
Kh8 24. Bd3 Qe6 25. Be4 $16 {1-0 Gausel,E-Ledger,A/Bergen NOR 2000/The Week in
Chess 299 (42)}) (8... a5 $5) 9. e3 Nc6 $146 {Usually this place isn't so good
for black knight,but Mark comes with interesting idea.} (9... Bxf3 10. gxf3 Qd7
11. h4 e6 12. Bh3 {[%cal Gd4d5]} (12. h5 $142 $36) 12... Qc6 13. e4 Na6 14. h5
Qc4 $13 {1-0 Bonnmann,R-Krueger,A/Cologne GER 1998 (37)}) (9... N8d7 10. Be2 c6
11. O-O Nf6 12. e4 $1 Be6 13. Qc2 Bc4 14. Bxc4 Nxc4 15. Na4 Nb6 16. Nc5 $14 Qc7
17. Rfe1 Rfe8 18. Qb3 Nfd7 19. Nd3 Rad8 (19... e5 20. Ndxe5 Nxe5 21. Nxe5 Bxe5
22. dxe5 Qxe5 23. f4 $16) 20. Bf4 Qc8 21. Rc1 Qa8 22. a4 $1 $16 {[%cal Ga4a5]
1-0 Horvath,J-Leko,P/Budapest 1993/CBM 37/[Ribli] (46)}) 10. Be2 Qe8 {[%cal
Ge7e5]} (10... a5 {Ftacnik} 11. O-O $14) 11. d5 (11. O-O e5 12. d5 e4 $1 {
Key move in black idea} 13. dxc6 (13. Nxe4 Qxe4 14. dxc6 Qxc6 15. Nd4 Qc5 $11 {
[%cal Gc5g5]}) 13... exf3 14. gxf3 (14. cxb7 fxe2 15. bxa8=Q exf1=R+ 16. Rxf1
Qxa8) 14... Be6) 11... Ne5 (11... Bxf3 {Ftacnik} 12. Bxf3 Ne5 13. Be2 $14) 12.
Nb5 $1 {'?!' Ftacnik.} (12. Nxe5 $143 Bxe2 13. Nxe2 (13. Nxg6 $2 Bxd1 $19)
13... Bxe5 14. Bh6 Bg7 15. Bxg7 Kxg7 16. Qc3+ (16. O-O c6 $11) 16... Kg8 17.
Qxc7 Qb5 $1 $132 {[%csl Ge1]} 18. Qxb7 (18. Qxe7 {Ftacnik} Nxd5 19. Qa3 $16)
18... Qb4+ (18... Qxb2 19. Qxe7 Rfd8 20. Nf4 Qc3+ 21. Ke2 Qc4+ 22. Kf3 Nxd5
$132) 19. Kf1 Rfd8 $44) 12... Qd8 13. Rd2 $5 {/\14Ne5-Be215Ng6!} (13. O-O Nxf3+
14. gxf3 Bh3 15. Rfe1 Qd7 $14) 13... Nxf3+ {'?!' Ftacnik.} (13... Nbc4 $5 {
Fritz} 14. Rd4 $1 (14. Bxc4 Bxf3 $13 (14... Bxf3 {Ftacnik} 15. O-O Qd7 16. h3
c6 $11)) (14. Rc2 Bxf3 15. gxf3 c6 $15) 14... Bxf3 (14... Nxf3+ 15. gxf3 Na5
16. Qc3 Bxd4 17. Qxd4 (17. Nxd4 $143 Qxd5 $13) 17... Bd7 18. Bh6 f6 19. Bxf8
Kxf8 20. b4 $18) 15. gxf3 Nd6 16. Nc3 $14) 14. gxf3 Bd7 15. Nc3 Rb8 {[%cal
Gb6c8,Gc8d6] '?' Ftacnik. Ftacnik: 'Black was probably not aware of the
serious nature of his upcoming problems, the rook move only enhances white
tactical chances.'} (15... c6 16. dxc6 (16. d6 Bf6 17. Bxf6 exf6 18. e4 f5 19.
h4 Re8 $13) (16. e4 cxd5 17. Nxd5 Nxd5 18. Rxd5 Qe8 $11) 16... bxc6 17. Qa3 (
17. O-O) 17... f6 (17... Re8 18. O-O $14) 18. Bh4 $14) (15... Re8 {Ftacnik} 16.
h4 h6 17. Bf4 e5 $13) 16. h4 $1 {[%cal Gh4h5]} h6 (16... h5 17. e4 Nc8 18. Be3
{[%csl Ga7]} b6 19. f4 Nd6 20. Qc2 $36 {[%cal Gf4f5]}) 17. Bf4 Nc8 18. h5 g5
19. Bh2 Nd6 20. f4 f5 $2 {Looks very logical,but i was lucky to find a
beutiful idea and to break through black defence.} (20... gxf4 $142 21. Bxf4
Kh8 22. e4 (22. Qa3 $2 b5 $36 {[%cal Gb5b4]}) (22. Qb4 $143 b6 23. e4 a5 24.
Qa3 b5 $1) 22... e5 23. dxe6 fxe6 (23... Bxe6 24. Qa3 Qf6 25. Be3 $16 {[%cal
Gf2f4]}) 24. Be3 (24. Bxd6 $2 cxd6 25. Rxd6 Qe7 $17 {[%csl Ge1,Gg7]}) 24... b6
25. Rg1 Qe7 $14) 21. fxg5 hxg5 22. Rg1 (22. h6 $1 {Ftacnik} Bf6 23. e4 fxe4 24.
Nxe4 $18) 22... Bf6 (22... g4 23. f3 $16) 23. e4 $3 $16 {[%mdl 64]} (23. Bf4
Kh7 24. Bxg5 Rg8 25. f4 Nf7 $13) 23... fxe4 (23... Nf7 24. f4 g4 25. e5 Bh4+
26. Kd1 Nh6 27. Rh1 $18 {[%csl Gh4][%cal Gh2g1]}) 24. Nxe4 $3 {[%csl Gg8]} Kh8
(24... Nxe4 25. d6+ e6 (25... Kh8 26. dxc7 Nxd2 27. Qd3 $1 (27. Kxd2 $2 Be6+
$17) (27. cxd8=Q $143 Rbxd8 (27... Nxb3 28. Qxd7 $18) 28. Qxb7 (28. Qe3 Bc6
$132) 28... Bf5 $132) 27... Bc6 28. cxb8=Q Nf3+ 29. Bxf3 Qa5+ 30. Kf1 Rxb8 31.
Bxc6 (31. Bxb8 $4 Bb5 $19) 31... Rd8 32. Qb5 {and white wins}) 26. dxc7 Nxd2
27. Qc2 (27. Qd3 $18) 27... Qe7 28. cxb8=Q Rxb8 29. Bxb8 $18 {[%csl Gd2]}) 25.
Nxg5 Bf5 (25... Rg8 26. Qe3 Qe8 27. Be5 $18) 26. Qe3 $18 Rg8 (26... Bg7 27. Be5
$18) (26... Qe8 $142 27. Ne6 Rg8 28. Qh6+ Bh7 29. Rxg8+ Qxg8 30. Bd3 Bg7 31.
Nxg7 Qxg7 32. Qe6 $18 {[%cal Gh2e5]}) 27. Bxd6 Bxg5 28. Rxg5 exd6 29. Rxf5 Rg1+
30. Bf1 Qh4 31. Rd4 1-0

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.03.25"]
[Round "4"]
[White "Feller, Sebastien"]
[Black "Jansa, Vlastimil"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2657"]
[BlackElo "2513"]
[Annotator "Avrukh,B"]
[PlyCount "69"]
[EventDate "2011.03.22"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "FRA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 c5 10. e5 Nh5 11. Be3 cxd4 12. Qxd4 Bc6 {'The main continuation
in this line, which has been always considered pretty harmless for Black, but
in the present encounter Feller came up with a new idea, which seems to me
quite problematic for Black.'} 13. Be2 Qc7 {Avrukh,B: 'For alternatives'} (
13... Bxf3 {'see examples in my survey.'} 14. Bxf3 Qxd4 15. Bxd4 Nb4 16. O-O-O
Nf4 17. Kb1 Ne6 18. Be3 Bxe5 19. Rd7 Nc6 20. Rhd1 Rab8 21. Na4 Rfc8 22. Rc1
Ned4) (13... Qa5 {(Avrukh,B) and}) 14. O-O $146 {A very simple novelty.'} ({
Before White played only} 14. Qh4 Bxe5 15. Nxe5 Qxe5 16. O-O-O (16. O-O {
would be stronger, but here too Black is absolutely fine after} Ng7 17. Bf4 {
and now even} Nf5 ({Certainly} 17... Qd4 $5 18. Rad1 Qb4 {comes into
consideration}) 18. Qxh7+ Kxh7 19. Bxe5 f6 20. Bf4 e5 $11) 16... Nc7 (16... Ng7
$1 $146 {A clear improvement over 16...Nc7.} 17. Bf4 Qe6 (17... Nf5 18. Qxh7+
Kxh7 19. Bxe5 f6 $15) 18. Bg4 Nf5 $17) 17. Rhe1 Ne6 18. Bxh5 Qxh5 19. Qxh5 gxh5
20. Nd5 {'©'} Rfe8 21. Bh6 Kh8 22. Bd2 Rac8 ({RR} 22... Kg7) 23. Bc3+ Kg8 24.
Re5 Bxd5 25. Rexd5 Red8 26. Rxh5 f6 27. Rxd8+ Rxd8 28. Rh4 Rd7 {Grigoriants,S 
(2553)-Esen,B (2287)/Warsaw 2005/CBM 108/1-0 (62)}) 14... Bxf3 ({Another
critical line is} 14... Rfd8 15. Qh4 (15. Qc4 Bxf3 16. Qxc7 Nxc7 17. Bxf3 Bxe5
18. Rad1 Nf4 $11) 15... Bxe5 16. Nxe5 Qxe5 17. Rfe1 $44) 15. Bxf3 Bxe5 16. Qe4
$44 {[%csl Ra6,Rb7,Ge3,Gf3,Rh5]} Nc5 (16... Bxh2+ 17. Kh1 Bd6 18. g4 Nf6 19.
Qxb7 Qc4 $13 {[%cal Gc4a6,Gf6g4]}) (16... Bxc3 {runs into} 17. Rac1 (17. bxc3
Nc5 18. Qb4 Rac8 19. Bxh5 gxh5 20. Rad1 $14) 17... Nf6 18. Qh4 Nb4 19. Rxc3 Nc6
20. b4 {with nice compensation.}) 17. Qb4 $1 Nd3 18. Qb3 Bxc3 (18... Nxb2 {
Avrukh,B} 19. Nd5 Qd7 20. Bh6 $1 $14) ({Probably the best for Black would be} 
18... Nc5 {Avrukh,B} 19. Qa3 $5 Bxh2+ 20. Kh1 Bd6 21. Nd5 Qc8 22. Rfd1 $44) 19.
Qxc3 Qxc3 20. bxc3 Rac8 21. Bxa7 $1 {[%csl Ga7,Gf3]} Rxc3 22. a4 $6 {[%cal
Ga4a8,Gf3b7]} ({The most dangerous for Black would be} 22. Rfb1 $142 $1 $14 {
Avrukh,B}) 22... Rd8 $2 (22... Ra8 23. Bb6 Nc5 24. Bxc5 Rxc5 25. Bxb7 Ra7 {
was an easy draw.}) 23. Rfb1 $1 $16 {'Now the endgame is difficult for Black,
as it's very hard for him to stop White's a-pawn.'} Nhf4 24. a5 e5 25. Be3 (25.
Rxb7 {[%csl Ga5]}) 25... Nc5 (25... Nd5 26. Bxd5 (26. Rxb7 Nxe3) 26... Rxd5 27.
Rxb7 Nc5) 26. Bxc5 Rxc5 27. Bxb7 Ne2+ 28. Kf1 Nc3 29. Rc1 Rc7 30. a6 $18 {
[%csl Ga6]} Nb5 31. Rxc7 Nxc7 32. a7 Na8 33. Ke2 Kg7 34. Bxa8 Rxa8 35. Kd3 1-0

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.03.23"]
[Round "2"]
[White "Zhukova, Natalia"]
[Black "Mikhalevski, Victor"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2443"]
[BlackElo "2584"]
[Annotator "Avrukh,B/Primel,D"]
[PlyCount "124"]
[EventDate "2011.03.22"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "FRA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 c5 10. e5 Nh5 11. Be3 cxd4 12. Qxd4 Bc6 13. Be2 Qa5 14. O-O Rfd8
$6 $146 {This natural move appears to be a serious inaccuracy.} (14... Bxf3 15.
Bxf3 Bxe5 16. Qd5 Qxd5 17. Nxd5 Rfe8 18. Rac1 e6 19. Nc3 Re7 20. a3 Bf4 21.
Bxh5 Bxe3 22. fxe3 gxh5 23. Ne4 Nc7 24. Nf6+ Kh8 25. Nxh5 Ne8 26. Rfd1 Ng7 27.
Ng3 Ne8 28. e4 Nf6 29. Rd4 {Sokolov,I (2695)-Van Wely,L (2654)/Belgium 2003/
CBM 097 ext/1/2-1/2 (37)}) 15. Qh4 Bxe5 16. b4 $1 {The point, obviously the
b4-pawn is untouchable.} Qc7 17. Nxe5 {[%csl Ge2,Ge3]} Qxe5 18. b5 Qxc3 19.
bxc6 Qxc6 20. Bf3 $14 {[%csl Ra6,Rb7,Ge3,Gf3,Rh5]} Qd6 21. Rab1 $36 Rac8 22.
Bxh5 (22. Rxb7 Nf6 23. Rxa7 Nb4 24. Bg5 (24. Bh6)) 22... gxh5 23. Rb5 {
Starting from this point White starts to lose the thread in this well-played
game, meanwhile the simple} (23. Rxb7 $16 {[%csl Ra6,Ra7] 'would leave White
with a clear advantage.'}) 23... f6 {[%cal Gg8f7] Une erreur de saisie de la
FFE et c'est f6 qui a йtй jouй au lieu de h6} (23... h6 24. Rxb7 Rc7 25. Rxa7
Rxa7 26. Bxa7 Qd5 27. Qa4 Kg7 28. Bb6 Ra8 29. Qh4 {La suite de la base de la
FFE}) 24. Rxb7 Rc7 25. Rxa7 Rxa7 26. Bxa7 Qd5 27. Qa4 Nc7 28. Bb6 Ra8 29. Qb3
Qxb3 30. axb3 Nd5 31. Bc5 Ra2 $11 {[%cal Ga2b2,Gg8f7,Gf7e6] Le P passй n'est
pas facile а exploiter et le K Noir sera plus rapidement centralisй que celui
des Blancs.} 32. g3 Rb2 33. Rd1 e6 34. b4 h4 (34... Kf7 35. Rd4 (35. Kg2 Nxb4
36. Rd7+ Kg6) 35... Kg6 36. Kg2 Rb3 (36... Kf5 37. Kf3)) 35. Kg2 Kf7 36. gxh4
$6 {[%cal Gd5f4] La structure Blanche est maintenant en lambeaux et le P"h4"
va tomber а terme} Kg6 37. Rd4 Kf5 $44 38. Rc4 h5 $1 {[%csl Rh4] Fixe la
faiblesse "h4" tout en empйchant le pйnйtration Rg4} 39. Kf3 Rb1 40. Be3 Nxe3
41. fxe3 Rb3 42. Kf2 Rb1 43. Rc5+ e5 44. Rb5 Rh1 45. Kg3 Rc1 46. Rb8 Rc3 47.
Kf3 Rb3 48. b5 Rc3 49. Rh8 Rc5 50. Rb8 Rc2 51. h3 Rc3 52. Rh8 Rc7 53. Rxh5+ Kg6
54. Rh8 Rb7 55. Rg8+ Kf7 56. Rg1 Rxb5 57. h5 Rb8 58. Rf1 Ke6 59. Kg4 Rb4+ 60.
Kg3 f5 61. Rf3 f4+ 62. Kg4 Rb1 {Et gain au 66ème coup} 0-1

[Event "Sochi"]
[Site "Sochi"]
[Date "1993.??.??"]
[Round "?"]
[White "Tregubov, Pavel V"]
[Black "Shmuter, Leonid"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2475"]
[BlackElo "2455"]
[Annotator "Belov,I"]
[PlyCount "84"]
[EventDate "1993.09.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "RUS"]
[EventCategory "10"]
[SourceTitle "CBM 038"]
[Source "ChessBase"]
[SourceDate "1994.02.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.02.01"]
[SourceQuality "1"]

1. Nf3 {Ribli} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 (5... Nxc3 6.
Qxc3 f6 7. d4 Nc6 8. e3 $14 e5 9. Bb5) 6. d4 Bg7 (6... Be6 7. Qc2 Nc6 8. e4 Nb4
9. Qd1 Bg7 10. a3 Na6 11. d5 Bg4 12. Bb5+ Bd7 13. Be2 O-O 14. Be3 $16 {Gulko,
B-Mikhalchishin,A Frunze 1981/}) 7. Bf4 (7. Bg5 a5 (7... O-O {Ribli} 8. Rd1 Bg4
$6 9. e3 N8d7 10. Be2 $14 {Horvath,Jo-Leko,P/Budapest Exp/CBM37/}) (7... Be6 $5
8. Qc2 Nc6 9. Rd1 h6 $13 {Gausel,E-Hellers,F/Skei/1993/CBM36/}) 8. Rd1 a4 9.
Qc2 O-O 10. e4 Nc6 11. d5 Nb4 12. Qd2 a3 $13 {Ostenstad,B-Donchev,D Debrecen
1992 Inf 56/553/}) (7. e4 Bg4 $6 8. Ng5 O-O 9. h3 Bc8 10. Nf3 Nc6 11. d5 Nb8
12. Be2 c6 13. O-O cxd5 14. exd5 N6d7 15. Be3 Na6 16. Qa3 Nc7 17. Rfd1 $16 {
Barlov,D-Kovacevic,V JUG 1989/}) 7... O-O (7... Bg4 8. Ng5 $1 O-O 9. h3 Bc8 10.
e3 c5 $6 (10... Nc6 $5) 11. dxc5 e5 12. Nxf7 $1 $16 {Speelman,J-Gurevich,I
Hastings 1992 Inf 56/553/}) (7... Be6 8. Qc2 Nc6 9. e3 Nb4 10. Qd1 O-O 11. a3
N4d5 12. Nxd5 Bxd5 13. Rc1 c6 14. Be2 a5 $10 {Kholmov,R-Hort,V Moscow 1975/})
8. Rd1 $146 (8. e4 $6 Bg4 9. Ne5 Bxe5 $1 10. dxe5 Nc6 11. Rc1 Qd4 $15 {Adamski,
J-Jansa,V POL 1971 Inf 11/541/}) (8. e3 a5 9. Be2 a4 10. Qc2 Nc6 11. O-O {
Popov,L-Rodev,N BUL 1973 Inf 16/603/} a3 12. b3 Nb4 $13) (8. e3 $5 {Ribli
Denker,A-Kraidman,Y/Israel/1974/INF18,616/}) 8... a5 (8... Nc6 9. d5 $14) (8...
Be6 9. d5 $14) 9. e3 Bf5 10. Bd3 (10. Be2 $5 a4 11. Qa3 Nc6 $13) 10... Be6 (
10... Bxd3 11. Rxd3 Nc6 12. d5 Nb4 13. Rd2 $13) 11. Qc2 Nc6 12. a3 a4 13. d5 $5
(13. Nd2 Bg4 14. f3 e5 $1 15. dxe5 Be6 16. O-O Nxe5 17. Be2 Qe7 $15) (13. Qe2
$5 {Ribli}) 13... Nxd5 14. Bc4 $6 (14. Be4 $5 Ra5 15. O-O Bxc3 16. bxc3 Qc8 17.
Bh6 Rd8 $13) (14. Nxd5 {Ribli} Qxd5 $1 15. Bxg6 $2 Qa5+ $19) 14... Nxc3 $1 $8
15. Rxd8 Rfxd8 16. Be2 (16. Bxe6 Rd1+ 17. Qxd1 Nxd1 18. Kxd1 (18. Bxf7+ Kxf7
19. Kxd1 Bxb2 $19) 18... fxe6 19. Kc2 Ra5 $17) (16. bxc3 Bxc4 17. Nd4 e5 18.
Nxc6 bxc6 $17) 16... Bf5 17. e4 $6 (17. Qc1 Nxe2 18. Kxe2 Bd3+ 19. Ke1 e5 $17)
17... Bxe4 18. Qc1 Nxe2 19. Kxe2 Bd3+ 20. Ke3 $6 e5 21. Bg5 f6 22. Rd1 Ba6 23.
g4 fxg5 $19 24. Nxg5 Rxd1 25. Qxd1 Rd8 26. Qc1 Rd3+ 27. Ke4 Rd4+ 28. Kf3 Bc4
29. Kg3 Bd5 30. f3 h6 31. Ne4 (31. Nh3 Rd3 32. Ng1 e4) 31... Bxe4 32. fxe4 Rxe4
33. Qc2 Re3+ 34. Kf2 Rf3+ 35. Kg2 Kh7 36. h4 Nd4 37. Qxa4 Rb3 38. h5 Rxb2+ 39.
Kh3 Rb3+ 40. Kg2 Rb2+ 41. Kh3 Rb6 42. Qd7 Re6 0-1

[Event "Aarhus Lux Time Cup"]
[Site "Aarhus"]
[Date "1983.05.07"]
[Round "5"]
[White "Tisdall, Jonathan D"]
[Black "Jansa, Vlastimil"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2440"]
[BlackElo "2495"]
[Annotator "Belov,I"]
[PlyCount "69"]
[EventDate "1983.05.02"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[EventCategory "7"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Nf3 Bg7 6. Qb3 Nb6 (6... Nxc3 7.
bxc3 c5 (7... O-O 8. Ba3 $16) 8. e3 O-O 9. Ba3 b6 10. Rd1 Qc7 11. Be2 Nd7 12.
O-O Bb7 13. d5 $1 $16) 7. Bg5 (7. Bf4 O-O 8. Rd1 Nc6 $6 (8... a5 $1 9. e3 Bf5
10. Bd3 Be6 11. Qc2 Nc6 12. a3 a4 $13 {Tregubov,P-Shmuter,L/Sochi/1993/0:1/42/}
) 9. d5 Na5 10. Qb4 Nac4 11. e4 Nxb2 12. Rd2 $1 $16 {Poluljahov,A-Yandemirov,V/
Volgograd/1994/1:0/22/}) 7... h6 (7... Be6 8. Qc2 Nc6 9. Rd1 h6 10. Bf4 g5 11.
Bg3 g4 12. Ne5 Nxe5 13. Bxe5 Bxe5 14. dxe5 Nd7 $13 {Gausel,E-Hellers,F/Gausdal/
1993/}) (7... a5 $5 8. Rd1 a4 9. Qc2 O-O 10. e4 Nc6 11. d5 Nb4 12. Qd2 a3 $13 {
Ostenstad,B-Donchev,D/Debrecen/1991/}) 8. Bh4 Be6 (8... g5 9. Bg3 g4 10. Nd2 $1
Qxd4 11. O-O-O $44) 9. Qc2 Nc6 10. Rd1 (10. e3 Nb4 11. Qd2 Nc4 $1) 10... Nb4
11. Qb1 O-O 12. e3 (12. a3 N4d5 13. Nxd5 Qxd5 14. Bxe7 $6 (14. e3) 14... Rfe8
15. Bb4 Bg4 $1 16. Ne5 c5 $17 {Skembris,S-Mikhalchishin,A/Portoroz/1993/1/2-1/
2/28/}) (12. h3 f5 $1 13. e3 Qe8 {/\Qf7=/+/}) 12... Bf5 13. e4 Bg4 14. d5 (14.
a3 Nc6 15. d5 Bxf3 16. gxf3 Nd4 $15) 14... g5 15. Bg3 f5 $1 16. a3 f4 $8 17.
axb4 fxg3 18. hxg3 Rxf3 $1 (18... Bxf3 $6 19. gxf3 Rxf3 20. Be2 Rf8 21. Bg4 $16
) 19. gxf3 Bxf3 20. Rh2 Bxd1 21. Qxd1 a5 $1 $13 (21... Qd6 22. Qg4) 22. bxa5
Rxa5 23. Bh3 Nc4 (23... Qa8 $6 24. Be6+ Kh8 25. Qh5 $16) 24. Be6+ Kh8 25. Qh5
$1 Qf8 26. Qxg5 Nxb2 27. Ke2 $1 Qf6 (27... Nc4 $5 28. f4 Ra3 29. Qg6 Rxc3 30.
Bf5 Rc2+ 31. Kf3 Rc3+ $10) 28. Qxf6 Bxf6 29. Nb1 (29. Nd1 Nxd1 30. Kxd1 Kg7 $10
) 29... Nc4 30. Rxh6+ Kg7 31. Rh1 Ra2+ 32. Kd3 Ne5+ 33. Ke3 Nc4+ 34. Kd3 Ne5+
35. Ke3 1/2-1/2

[Event "EU-chT (Men) 10th"]
[Site "Debrecen"]
[Date "1992.11.??"]
[Round "1.3"]
[White "Ostenstad, Berge"]
[Black "Donchev, Dimitar I"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2455"]
[BlackElo "2520"]
[Annotator "Bulletin"]
[PlyCount "42"]
[EventDate "1992.11.20"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EU-chT"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Norway"]
[BlackTeam "Bulgaria"]
[WhiteTeamCountry "NOR"]
[BlackTeamCountry "BUL"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 a5 $5 (
7... h6) 8. Rd1 a4 9. Qc2 O-O 10. e4 Nc6 11. d5 Nb4 12. Qd2 a3 13. Nb1 Nxa2 14.
bxa3 Rxa3 15. Bh6 Ra4 16. Bxg7 Kxg7 17. Bd3 Qd6 18. Bc2 Rc4 19. Bd3 Ra4 20. Bc2
Rc4 21. Bd3 Ra4 1/2-1/2

[Event "Donau op-A 05th"]
[Site "Aschach"]
[Date "1996.??.??"]
[Round "3"]
[White "Teske, Henrik"]
[Black "Altukhov, Sergei"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2510"]
[BlackElo "2350"]
[Annotator "Bulletin"]
[PlyCount "59"]
[EventDate "1996.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2
O-O 9. h3 Ne4 $1 10. Rc1 Nxc3 11. Rxc3 $1 f6 12. Rc5 Be6 13. O-O Bf7 14. Qb3 e5
15. dxe5 fxe5 16. Bg3 Qe7 17. Rfc1 h6 18. Bb5 Rac8 19. Bxc6 Rxc6 20. Rxc6 bxc6
21. Rxc6 d4 22. Qb5 dxe3 23. fxe3 e4 $2 (23... Bxa2) 24. Bd6 Qd7 25. Bxf8 exf3
26. Bxg7 Be8 27. Qc4+ Bf7 28. Rc8+ Kh7 29. Rh8+ Kxg7 30. Qc3+ 1-0

[Event "Olympiad-39"]
[Site "Khanty-Mansiysk"]
[Date "2010.10.01"]
[Round "10.1"]
[White "Ivanchuk, Vassily"]
[Black "Vachier Lagrave, Maxime"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2754"]
[BlackElo "2721"]
[Annotator "CB"]
[PlyCount "181"]
[EventDate "2010.09.21"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 139"]
[Source "ChessBase"]
[SourceDate "2010.11.18"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.18"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "France"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "FRA"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 Be6 8.
Qa3 O-O 9. e3 N8d7 10. Rd1 a5 11. Ng5 $146 (11. d5 Bxc3+ 12. bxc3 Bxd5 13. c4
Bxf3 14. gxf3 e6 15. h4 Qf6 16. Be2 e5 17. Bg5 Qc6 18. h5 f6 19. Bh6 Rf7 20.
Rg1 f5 21. f4 Re8 22. c5 Qxc5 23. Qxc5 Nxc5 24. hxg6 {1-0 in 47 moves. Eljanov,
P (2720)-Vachier Lagrave,M (2716)/Germany 2008/CBM 127 Extra (46)}) 11... Bd5
12. e4 Bc4 13. h4 Bxf1 14. Kxf1 Nf6 15. Qc5 c6 16. Nf3 e6 17. Qd6 Nc4 18. Qxd8
Rfxd8 19. b3 Na3 20. Be5 Ng4 21. Bxg7 Kxg7 22. Ke2 {Though a more pleasant
ending for white, Ivanchuk conducts it with beautiful technique, and great
patience.} h5 23. Rd2 Nf6 24. Rc1 Ne8 25. Na4 Nd6 26. Ke3 Nab5 27. Ne5 Nc7 28.
f3 Nce8 29. Nb6 Ra6 30. Nbd7 $1 {#White's first goal is to reposition his
knights to their ideal squares, c5 and b6.} Raa8 (30... f6 $2 {with the idea
of attacking d7's defender, is not possible because of} 31. Nc5 $1 fxe5 32.
Nxe6+ Kf6 33. Nxd8) 31. Nc5 Nc7 32. Rcd1 Ra7 33. Rc1 Raa8 34. Ned3 Rab8 35. Nf4
Rh8 36. Rcc2 Nde8 37. Kf2 Nf6 38. Nfd3 Nfe8 39. Ne5 Nd6 40. Ned7 Rbd8 41. Nb6 {
#Mission accomplished. Now for the second part which is to prepare a break.}
Rhe8 42. Ke3 Ncb5 43. a4 Nc7 44. Rb2 Re7 {#} 45. b4 $1 axb4 ({Ivanchuk's
lovely point is that the attempt to win the exchange with} 45... Na8 {is met by
} 46. bxa5 Nxb6 47. axb6 Nc4+ 48. Kd3 Nxd2 49. Rxd2 {and the passed queenside
pawns rule. A sample continuation is} e5 50. Kc3 exd4+ 51. Rxd4 Rxd4 52. Kxd4
g5 53. a5 gxh4 54. Nxb7 $1) 46. Rxb4 Na6 47. Rbb2 Nc7 48. Rdc2 {# The
Ukrainian grandmaster has created another strategical masterpiece: "Ivanchuk's
Initiative" (Mьller)} Kh6 {The king is slightly misplaced here which will be
felt in the following. (Mьller)} ({The immediate} 48... e5 $1 49. dxe5 Rxe5 {
gives Black more counterplay as} 50. Nxb7 $2 (50. Kf2 {is called for.}) 50...
Nxb7 51. Nc4 Re7 52. Rxb7 $2 Nd5+ $19 {(Mьller)}) 49. Kf2 $5 {A very strong
prophylactic move. (Mьller)} ({The direct} 49. Nc4 $6 {allows Black to reduce
the pressure by} Nxc4+ 50. Rxc4 b5 {(Mьller)}) 49... Na8 ({Now it is too late
for} 49... e5 $2 {due to} 50. dxe5 Rxe5 51. Nxb7 $1 Nxb7 52. Nc4 $18 {(Mьller)}
) 50. Nc4 Nxc4 51. Rxc4 b6 52. Nd3 c5 {#} 53. a5 $3 {A spectacular undermining
shot. (Mьller)} Rxd4 {White has a very dangerous initiative, which Ivanchuk
handles masterfully. (Mьller)} ({If black were to take with the pawn with} 
53... cxd4 {then white pushes with} 54. a6 $1 (54. axb6 $6 Rb7 55. Rc6 Rdb8 56.
Ne5 (56. Ra2 $5) 56... Nxb6 57. Nxf7+ Rxf7 58. Rbxb6 Rxb6 59. Rxb6 {and due to
the large drawish tendency of rook endings Black still has hopes to survive. 
(Mьller)}) 54... Ra7 55. Nb4 d3 56. Ke1 (56. Ke3 $2 {would be a mistake after}
d2 57. Rxd2 Rxd2 58. Kxd2 Nc7 {with chances to hold.}) 56... f5 57. e5 b5 58.
Rc6 Nc7 59. Rd6 Rda8 (59... Rxd6 60. exd6 Nd5 61. Nxd5 exd5 62. Ra2 b4 63. d7
Rxd7 64. a7) 60. Ra2 {and white's king will decide it.}) (53... bxa5 54. Nxc5 {
and on top of white's far superior pieces, the a-pawn is doomed.}) 54. Rxd4
cxd4 55. axb6 Rb7 {It might seem as if black is about to get his house in
order, but...} 56. Ne5 $1 Rxb6 (56... f6 $6 57. Nc4 {Black's knight is
imprisoned. (Mьller)}) 57. Ra2 $1 {Ivanchuk does not exchange his active rook,
which is an excellent practical decision. (Mьller)} ({The technical endgame
after} 57. Nxf7+ $2 Kg7 58. Rxb6 Nxb6 59. Ne5 {is by no means easy to assess. 
(Mьller)}) 57... Nc7 {#} 58. Ra7 $1 {Activity is of the utmost importance in
this type of endgame with rook and knight vs rook and knight as both pieces do
not like to defend passively. (Mьller)} ({The greedy} 58. Nxf7+ $2 {violates
the principle "Do not rush" and allows Black to continue the fight with} Kg7
59. Ne5 Rb7 60. Nc6 Kf6 61. Nxd4 e5 62. Nc2 Ne6 {(Mьller)}) 58... Rb2+ (58...
Na6 {also doesn't save after} 59. Nxf7+ Kg7 60. Ne5+ Kg8 61. Kg3 Nc5 62. Ra5
Nb3 63. Ra8+ Kg7 64. Ra7+ Kg8 {and here white wins with the spectacular king
penetration#} 65. Kf4 $1 Rb5 66. Kg5 $3 Rxe5+ 67. Kxg6 Kf8 68. Kf6 $1 Ra5 69.
Rb7 $1 Ke8 70. Rxb3 Kd7 71. g4 $1 $18) 59. Kg3 Rc2 60. Nxf7+ Kg7 61. Ne5 Kf6
62. Kf4 Ke7 63. g3 Rc5 {#} (63... Kf6 {does not help due to} 64. Rb7 d3 65.
Nxd3 e5+ 66. Ke3 (66. Nxe5 $2 Ne6+) 66... Rc3 67. Kd2 $18 {(Mьller)}) 64. Rb7
$1 {A very nice move. Black is in a kind of zugzwang. (Nunn)} Kd6 65. Rb6+ Ke7
66. g4 hxg4 67. fxg4 g5+ 68. hxg5 Rb5 69. Rc6 Rb7 70. Rc4 $6 ({White could
have won more easily by} 70. g6 $1 Kf6 71. g5+ Kg7 72. Rd6 {but the move
played is also sufficient. (Nunn)}) 70... Nb5 71. Rc8 Nc3 72. Rh8 Ne2+ 73. Kf3
Rb5 74. g6 Ng1+ 75. Kg2 Rxe5 ({Vachier-Lagrave gives the exchange as} 75... Kf6
$2 {runs into} 76. Rf8+ Kg7 (76... Kxe5 77. g7) 77. Rf7+ Kg8 78. Nd7 $18 {
(Mьller)}) 76. g7 Rg5 77. g8=Q Rxg8 78. Rxg8 d3 79. Ra8 d2 80. Ra1 Ne2 81. Rd1
Nc3 82. Rxd2 Nxe4 83. Re2 Ng5 84. Kg3 Kf6 85. Kh4 Kg6 86. Re3 Kh6 87. Ra3 Kg6
88. Ra8 Nf3+ 89. Kg3 Ne5 90. Ra6 Kg5 91. Ra5 (91. Ra5 Kf6 92. g5+ Kf5 93. g6
Kf6 94. Rxe5 Kxe5 95. g7 $18 {(Mьller)}) 1-0

[Event "Gibraltar Masters 13th"]
[Site "Caleta"]
[Date "2015.01.31"]
[Round "5"]
[White "Vazquez Igarza, Renier"]
[Black "Wei, Yi"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2592"]
[BlackElo "2675"]
[Annotator "CB"]
[PlyCount "109"]
[EventDate "2015.01.27"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "GGB"]
[SourceTitle "CBM 165"]
[Source "ChessBase"]
[SourceDate "2015.03.11"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.11"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 Be6 8.
Qa3 c5 9. Qxc5 Nc6 10. e4 Nxd4 11. Nxd4 Bxd4 12. Bb5+ Kf8 13. Qa3 a6 14. Be2
Qc8 15. Rc1 Qc5 16. Qxc5 Bxc5 17. O-O Rc8 18. Bh6+ Ke8 19. Rfd1 Bd6 20. Bg7 Rg8
21. Bd4 Bc5 22. f3 f6 23. Kf2 Kf7 24. Ke3 Rc6 25. Bxc5 Rxc5 26. Rd4 Rgc8 27.
Rb4 R5c6 28. Rd1 Bc4 29. Bxc4+ Nxc4+ 30. Ke2 b5 31. a4 Nxb2 32. Rxb2 Rxc3 33.
axb5 Rc2+ 34. Rd2 Rxb2 35. Rxb2 Rb8 36. b6 Rb7 37. Kd3 Ke6 38. Kd4 Kd6 39. e5+
fxe5+ 40. Ke4 Kc5 41. Rc2+ Kxb6 42. Kxe5 a5 43. Rb2+ Ka6 44. Ra2 Rb4 45. Ke6
Kb5 46. Kxe7 Rf4 47. Kd6 a4 48. Ke5 g5 49. h4 h6 $2 {This endgame is not as
trivial as it looks. Black wanted to keep the pawn on g5 for the blockade, but
he really had no choice but to take on h4.} (49... Rxh4 $1 50. Kf5 h6 51. g3
Rh1 52. f4 gxf4 53. gxf4 {And White is simply not in time to push his f-pawn
and capture the enemy h-pawn. For example:} Kb4 $1 54. Rb2+ Kc3 55. Rb6 (55.
Rb8 a3 56. Rc8+ Kb2 57. Rb8+ Ka1 58. Kg6 Rb1 59. Ra8 Rb6+ $19) 55... h5 $1 (
55... a3 56. Ra6 Kb2 57. Rb6+ Ka1 58. Ke4 {and now the rook is attacking h6, a
very important detail. There is no 58...Rb1.}) 56. Ra6 Kb4 57. Rb6+ Ka5 $1 58.
Rb8 a3 $19) 50. hxg5 hxg5 51. Ra1 Kb4 52. Rf1 $1 a3 53. g3 Rc4 54. f4 {With
the creation of this passed pawn White can feel safe. Worst case scenario he
sacrifices his rook for the a-pawn and pushes the f-pawn, forcing Black to
sacrifice his rook for the passer.} gxf4 55. gxf4 1/2-1/2

[Event "USA-ch U20"]
[Site "Saint Louis"]
[Date "2016.07.12"]
[Round "5"]
[White "Xiong, Jeffery"]
[Black "Troff, Kayden W"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2641"]
[BlackElo "2543"]
[Annotator "CB"]
[PlyCount "61"]
[EventDate "2016.07.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "9"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]
[WhiteClock "0:17:42"]
[BlackClock "0:00:27"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 {This position looks just like the
normal Grunfeld, but White has not played d4 yet. This gives White several
other options, Jeffery decided to go for the main line of the Anti-Grunfeld} 5.
Qb3 (5. h4 $5 {Is another tricky variation.}) 5... Nb6 6. d4 Bg7 7. Bf4 Be6 (
7... Bxd4 {Is too greedy, after} 8. O-O-O $18 {Black is in big trouble}) 8. Qa3
c5 $5 {A pawn sacrifice that has recently become trendy. Troff played this
line in 2015 against Wesley so} 9. Qxc5 Nc6 10. e4 {Previously Troff faced:} (
10. e3 Rc8 11. Qa3 Nc4 12. Bxc4 Bxc4 13. d5 Qa5 14. Qxa5 Nxa5 15. Be5 Bxe5 16.
Nxe5 f6 17. Nf3 b5 18. b4 $16 {Was better for White in So,W (2788)-Troff,K 
(2532) Saint Louis USA 2015}) 10... Nd7 {A solid move that wins back the pawn
immediatly, but White keeps a slight initiative} (10... Rc8 11. Qa3 Nxd4 12.
O-O-O {Leads to huge complications}) 11. Qa3 Nxd4 12. Nxd4 Bxd4 13. Bb5 O-O 14.
O-O Qb6 (14... Be5 {Is possible but after} 15. Bxd7 Bxf4 16. Bxe6 fxe6 {
White has a slight edge due to Black's doubled e-pawn.}) 15. Bxd7 Bxd7 16. Nd5
Qxb2 17. Qxb2 Bxb2 18. Rab1 Ba3 19. Rxb7 Rfd8 {White is still a bit better,
but with the Queens off Black may be able to fall back on opposite-color
bishop endings in order to secure the draw.} 20. h4 {Creating an escape square
on h2 for the King, and introducing the idea of h5!? in order to destabilize
the position around Black's King.} a6 {This is too slow, instead} (20... Kg7 {
With the idea of Bc6 was better, after} 21. Rb3 Bd6 22. Bxd6 exd6 {White is
better, but Black should draw with accurate play.}) 21. Rfb1 f5 $2 {It's hard
to explain why Kayden played this move, which made Jeffrey's task easy. Instead
} (21... Bc6 22. Nxe7+ Bxe7 23. Rxe7 Re8 24. Rxe8+ Rxe8 25. f3 $16 {Is clearly
better for white, but far from winning.}) (21... Rac8 22. R1b3 Bc5 {I also
only slightly better for white.}) 22. R1b3 Bc5 23. Rc3 Bc6 (23... Rac8 24. Rc7
$3 {Might be what Troff missed, after} Bd4 (24... Bd6 25. Bxd6 exd6 26. Ne7+
$18) 25. Rxc8 Bxc8 26. Rxc8 Rxc8 27. Nxe7+ {White is up a piece}) 24. Nxe7+
Bxe7 25. Rxc6 Bxh4 {Black retains the material equality, but his King is too
exposed.} 26. g3 Rd1+ 27. Kg2 Bd8 28. Re6 Ba5 29. Be5 $1 {introducing the idea
of Rg7+} Rad8 30. Ree7 Bb4 31. Rxh7 {and mate on h8 is inevitable. A very
smooth win by Jeffery Xiong, who was happy to bounce back from a tough loss
against Alexandr Ostrovskiy yesterday.} 1-0

[Event "Candidates Tournament"]
[Site "Kazan"]
[Date "2011.05.06"]
[Round "1.2"]
[White "Topalov, Veselin"]
[Black "Kamsky, Gata"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2775"]
[BlackElo "2732"]
[Annotator "Caruana,F"]
[PlyCount "62"]
[EventDate "2011.05.05"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "RUS"]
[SourceTitle "CBM 143"]
[Source "ChessBase"]
[SourceDate "2011.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2011.07.15"]
[SourceQuality "1"]

{This match between two great players of vastly contrasting styles was highly
anticipated. And they didn't disappoint!} 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 {
Just like in their last match played two years ago, Kamsky remains faithful to
the Grьnfeld. Topalov quickly steers the game into unconventional lines, where
he has a powerful new idea.} 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 Be6 8.
Qa3 {White's queen is often the biggest problem in the Qb3 lines of the
Grьnfeld. Here it is completely sidelined and in danger of getting trapped in
some variations. On the other hand, if Black isn't able to take advantage of
this factor, then he will simply have a strategically inferior position due to
the strength of White's center. In this game it's clear White didn't justify
the position of his queen on a3: it didn't move for the rest of the game....}
Nc6 {The knight is aiming for the great b4-square after ...a5. Of course,
Black must play as concretely as possible at this stage, and cannot afford
luxuries such as castling.} ({For example, after} 8... O-O 9. e3 (9. e4 {
also deserves attention.}) 9... Nc6 10. Be2 a5 11. O-O Nb4 {White is in time
to play} 12. Rfc1 {, defending against ...Nc2, after which he will slowly
unravel and begin exploiting his strong center.}) 9. O-O-O $1 $146 {A novelty,
and a very interesting one! On the one hand, White is playing for complete
central domination with e4 and d5, but on the other, if he doesn't manage then
his king could end up very exposed on the queenside. The play quickly becomes
sharp and unusual, and the game could steer one way or the other as a result
of mistakes on either side.} ({Previously the obvious} 9. e3 {had been played.
As a matter of fact, Gata himself defended the Black pieces twice here!} a5 10.
Be2 (10. Bb5 O-O 11. Bxc6 bxc6 12. Qc5 Nd5 13. Be5 Nxc3 14. Qxc3 Bd5 15. Bxg7
Kxg7 {and Black compensated his bad pawn structure with active piece play in
Eljanov-Kamsky, Ohrid 2009.}) 10... Nb4 11. O-O {and here Ivanchuk-Kamsky,
Jermuk 2009 continued 11...c6, but Black could have ventured} Nc2 12. Qc5 Nxa1
13. Nb5 (13. Bxc7 Nd7 14. Bb5 Kf8 $1 {is a nice variation which ends with an
extra exchange for Black.}) 13... Nd5 14. Bxc7 Qd7 {, with chaotic play where
it's at first sight difficult to understand who is playing for what - but my
computer assures me that Black is doing very well here! I imagine all these
variations were checked deeply by both players and their seconds before the
match, and they came to the conclusion that Black is well off.}) 9... Nd5 {
Not what Black wants, but there was no other defence to the threat of d5.} (
9... a5 $4 10. d5 Nxd5 11. Nxd5 Bxd5 12. e4 {simply wins a piece.}) 10. Bg3
Bh6+ $5 {Although it's probably not enough to equalize, I'm nevertheless
impressed by this unconventional solution to Black's problems. It seems very
strange to "provoke" a natural move like e3, but Gata saw that if he could
prevent White from playing e4 and maintain central stability, then he would
have enough counterplay against White's king. Not only a great concept, it
also seemed to take Topalov out of his preparation, and as we will see he
immediately went astray.} ({The cooperative} 10... Nxc3 $6 {grants White an
advantage:} 11. bxc3 Qd5 12. e3 {, and White will continue to expand with c4
next.}) 11. e3 ({The point is of course that} 11. Kb1 $4 {is met by} Bf5+ 12.
Ka1 Ndb4 {, winning.}) 11... a5 12. h4 $2 {Topalov is too keen on attacking,
when he should have tried to realize his main plan of central expansion. This
very serious conceptual mistake leads to a very pleasant position for Black.} (
12. Kb1 $1 {, preparing e4, would have been a logical continuation of White's
opening strategy:} Ncb4 (12... Bf5+ 13. Bd3 Bxd3+ 14. Rxd3 {gives Black
nothing but trouble, since his counterplay has totally run out.}) 13. e4 $1 {
, and here Black is unable to play 13...Nxc3, but the computer comes up with
the astonishing} c6 $5 {A brilliant way to "defend" the knight on d5.
Unfortunately, it isn't clear what Black's next move will be, so now White can
consider} 14. h4 {, with the dual threats of h5 and Ng5.}) 12... Ncb4 13. h5 {
Consistent. White also had another option.} (13. Ng5 {The bishop on e6 is very
annoying for White, so it makes sense to drive it away. Unfortunately for
White, Black can provoke a crucial weakness with} Bg4 14. f3 ({After} 14. Rd2
f6 15. Nge4 c6 {, the position is pretty complicated, but it doesn't seem like
White has made much progress over the last few moves. Meanwhile, Black's
pressure on the queenside is extremely unpleasant.}) 14... Bc8 $1 {, and I'm
not sure exactly how White can deal with the weakness on e3, especially since
Black is also threatening ...f6. By the way, there is also the option of 14...
Nxe3, which follows a long line leading into an extremely complicated position
which is probably good for Black. But simpler is better!}) 13... c6 {Gata's
play makes good sense to me. He is securing his position and will prepare
counterplay with ...b5. On the other hand, I don't understand what White is
playing for.} 14. hxg6 hxg6 15. Rd2 $6 {An awkward move. I imagine Topalov
wanted to prevent ...Nxc3, but Black almost never wants to do that anyway,} ({
After} 15. Ng5 Bg4 16. Rd2 Kf8 {, Black has a good position. He just plans ...
Kg7.} (16... f6 {can be met by the bizarre} 17. e4 $5 Nc7 18. Qb3 fxg5 19. Be5
{, with weird complications. Let's avoid that.}) 17. e4 {is also met by} Kg7) (
{White should have tried} 15. Be2 {I still don't like White's position,
because Black's queenside play is very dangerous, but at least White needs the
option of doubling on the h-file to get some counterplay,} f6 ({I would rather
avoid} 15... b5 $6 16. Ng5 Nxc3 17. bxc3 Nxa2+ 18. Kc2 Bd5 19. Qc5 {, when
Black's knight is sadly trapped on a2 and will probably never get out,}) 16.
Ne4 b6 17. Rh2 Kf8 18. Rdh1 Kg7 {, and White has again run out of ideas. Black
can do whatever he wants on the queenside. A main idea would be to prepare ...
c5.}) 15... f6 {Calm positional play is the most unpleasant for White. Since
he could never achieve e4 or bother Black in any way, White is just clearly
worse now! The sad remnants of a strong opening novelty and failed strategy....
} 16. Ne4 (16. Kb1 {is always met by} Bf5+) 16... b6 17. Be2 Qc8 18. Rh4 Kf7 {
Everything according to plan. Black is slowly preparing ...c5. I can't even
criticize the move 18.Rh4, which just made it worse for White, because I can't
find any decent alternatives.} 19. Rd1 g5 {After good preparation all Black's
pieces are perfectly placed for the final breakthrough, which Gata executes in
model style!} 20. Rh2 g4 21. Nfd2 c5 22. dxc5 f5 {Of course, now White's king
will be under the combined attack of Black's entire army.} 23. Rxh6 (23. Nc3
Qxc5 {is obviously hopeless for White.}) 23... Rxh6 24. Ng5+ Kf8 {Now Black is
up material with an attack to boot. One could argue that the computer's
suggestion of 25.Nb3 could have prolonged the game, but it wouldn't have made
a real difference.} 25. Nxe6+ Qxe6 26. Bc4 Rc8 27. Bf4 Rf6 28. e4 Rxc5 29. exd5
Qxd5 30. b3 Qd4 31. Be3 (31. Qb2 Nd3+ {would have been a comical finish for a
queen stuck on a3 the whole game.}) 31... Qc3+ {An interesting game. Topalov
came prepared with a good novelty, but he didn't follow it up correctly. In
fact, it only took one mistake for White's position to go downhill – that's
how it works in these sharp lines. Kamsky, however, really played
fantastically the whole game, reacted calmly to the novelty and controlled the
game without allowing undue counterplay. A very well deserved win for him.} 0-1

[Event "Moscow-ch26 Final"]
[Site "Moscow"]
[Date "1947.04.18"]
[Round "4"]
[White "Kan, Ilia Abramovich"]
[Black "Ragozin, Viacheslav"]
[Result "0-1"]
[ECO "D90"]
[Annotator "ChessBase"]
[PlyCount "144"]
[EventDate "1947.04.15"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "URS"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 Nxd5 6. e4 Nb6 7. Be3 Bg7 8. Be2
O-O 9. a4 Be6 10. O-O Na6 11. Ng5 Bc4 12. a5 Bxe2 13. Qxe2 Nd7 14. Rfd1 h6 15.
Nf3 Nc7 16. Ne1 e6 17. Bf4 Rc8 18. Qe3 Kh7 19. Qg3 f5 20. exf5 exf5 21. d5 cxd5
22. Nxd5 Ne6 23. Bd6 Re8 24. Qa3 Rc4 25. Nf3 Ndc5 26. Bxc5 Rxc5 27. Qb3 Qc8 28.
h4 Qc6 29. h5 gxh5 30. Qd3 Nd4 31. Nf4 Rd8 32. Nxh5 Nxf3+ 33. Qxf3 Qxf3 34.
gxf3 Rxa5 35. Rxd8 Rxa1+ 36. Kg2 Bxb2 37. Rd7+ Kg6 38. Nf4+ Kg5 39. Nd3 Bf6 40.
Rxb7 Ra3 $15 {[#]} 41. Nc5 {Sealed move.} Bc3 42. Ne6+ Kf6 43. Nf4 Bd2 44. Ne2
f4 45. Rd7 Ra2 46. Rd6+ Ke5 47. Rxh6 a5 48. Rh5+ Kf6 49. Kh3 a4 50. Kg4 Rb2 51.
Rh6+ Ke5 52. Ra6 Rb4 53. Ra5+ Kd6 54. Kf5 Rc4 55. Ra8 Kc6 56. Ke5 Kb7 57. Rd8
Ba5 $15 {[#]} 58. Rd3 {Sealed move} (58. Rd4 Rc2 59. Kxf4 Bc7+ 60. Ke3 Bb6 $15)
58... Kc6 $17 59. Kf5 Bc7 60. Nd4+ Kb6 61. Ne6 Rb4 62. Rd5 Bb8 63. Rd8 Kb7 64.
Rd4 Rxd4 65. Nxd4 a3 66. Ke4 a2 67. Nc2 Kb6 68. Kd4 Kb5 69. Na1 Kb4 70. Kd3 Be5
71. Nc2+ Kb3 72. Kd2 Kb2 0-1

[Event "Yerevan"]
[Site "Yerevan"]
[Date "1976.04.07"]
[Round "15"]
[White "Gulko, Boris F"]
[Black "Vaganian, Rafael A"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2530"]
[BlackElo "2550"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "1976.03.19"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. Qa4+ Bd7 5. Qb3 dxc4 6. Qxc4 Bg7 7. d4 O-O 8.
e4 Na6 9. e5 Be6 10. exf6 Bxc4 11. fxg7 Bxf1 (11... Kxg7 12. Bxc4 Nb4 13. O-O (
13. Bb3 Nd3+ 14. Ke2 Nxc1+ 15. Raxc1 Qd6 $11) 13... Nc2 14. Rb1 Nxd4 $11) 12.
gxf8=Q+ Kxf8 13. Bh6+ Kg8 14. Rxf1 Nb4 15. O-O-O Qd7 16. a3 a5 17. Rfe1 f6 18.
h4 Kf7 19. Re2 Nc6 20. Re4 Re8 21. d5 Nd8 22. Nd4 c6 23. Ne6 Qc8 24. Nxd8+ Rxd8
25. Rde1 Rd7 26. Rc4 b5 27. Rxc6 Qb7 28. Rce6 b4 29. d6 Rxd6 30. Rxe7+ Qxe7 31.
Rxe7+ Kxe7 32. axb4 axb4 33. Ne2 b3 34. Be3 Rd3 35. Bd2 Rd7 36. Bc3 f5 37. Nd4
Rb7 38. Kd2 Kd6 39. Kd3 Kd5 40. Bd2 Rb8 41. Be3 Rb4 42. g3 f4 {Sealed move} 1-0

[Event "Match Euwe-Flohr (1)+2-2=4"]
[Site "Amsterdam,Den Haag &Rotterdam"]
[Date "1932.04.02"]
[Round "6"]
[White "Euwe, Max"]
[Black "Flohr, Salo"]
[Result "0-1"]
[ECO "D90"]
[Annotator "ChessBase"]
[PlyCount "58"]
[EventDate "1932.03.25"]
[EventType "match"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 {Amsterdam} d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 dxc4 6. a4 Nd5 7. Bd2
Nb4 8. Rc1 Bg7 9. Nb1 a5 10. Na3 c5 11. Nxc4 cxd4 12. Nb6 Qxb6 13. Rxc8+ Kd7
14. Rc4 Rd8 15. e3 Ke8 16. Nxd4 N8c6 17. Nxc6 bxc6 18. Qb1 Bxb2 19. Rxb4 axb4
20. Qxb2 Rxa4 21. Bc4 b3 22. Bxb3 Rb8 23. O-O Qxb3 24. Qh8+ Kd7 25. Qxh7 Ra1
26. Be1 Qc4 27. Qh3+ f5 28. g3 Rbb1 29. f3 Qe2 0-1

[Event "NED-chT 9900"]
[Site "Netherlands"]
[Date "2000.02.26"]
[Round "3"]
[White "Chuchelov, Vladimir"]
[Black "Van Kooten, Luuk"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2518"]
[BlackElo "2325"]
[Annotator "Chuchelov,V"]
[PlyCount "79"]
[EventDate "2000.02.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 074 Extra"]
[Source "ChessBase"]
[SourceDate "2000.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2000.03.10"]
[SourceQuality "1"]
[WhiteTeam "Bussum"]
[BlackTeam "Groningen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 h6 8.
Bh4 Be6 9. Qc2 Nc6 10. Rd1 Nb4 (10... O-O 11. d5 (11. e3 Bf5) 11... Nb4 12. Qc1
Bg4 13. a3 {CH.} Na6 14. e3 Nc5 15. Be2 $14) 11. Qb1 O-O 12. e3 (12. a3 $5 N4d5
13. Ne4 $5 (13. Nxd5 Qxd5 $5 14. Bxe7 $6 (14. e3 $11) 14... Rfe8 15. Bb4 Bg4
$17 {Skembris 2565 - Michalchichin 2520 1993 58/518} 16. Ne5 c5 17. Bxc5 Bxe5
18. Bxb6 Bf4) 13... Bf5 (13... f5 14. Nc5 Bc8 15. e3 g5 16. Bg3 f4 17. exf4
Nxf4 18. Bxf4 Rxf4 19. Be2 $14) 14. e3 c6 15. Bd3 Bxe4 16. Bxe4 f5 17. Bd3 g5
18. Bg3 f4 19. exf4 Nxf4 20. Bxf4 Rxf4 21. O-O $14) 12... Bf5 13. e4 Bg4 14.
Be2 $146 (14. d5 $5 {->D90} g5 $5 (14... f5 $2 15. a3 $1 fxe4 (15... Na6 16. h3
$1 Bh5 (16... Bxf3 17. gxf3 g5 18. Bg3 f4 19. Bh2 $14) 17. exf5) 16. Qxe4 Bxf3
17. gxf3 g5 18. axb4 gxh4 19. Rg1 $1 $16 Qd6 20. Bd3 $1 Rf7 21. Rg6 Rf6 (21...
Qf4 22. Rxg7+ $1 Kxg7 23. Qh7+ Kf6 24. Qg6+ Ke5 25. Qe6+ $18) 22. Rg4 $1 Rf7
23. Ke2 $16 h5 24. Rg5 Qh6 25. Rg6 Qh8 26. Rdg1 Rd8 27. Qxh4 $18 {1-0 Sadler,
M-Gurevich,I/Hastings 1992/CBM 33/[Ribli] (30)}) (14... Bxf3 15. gxf3 a5 16.
Rg1 Qd7 17. a3 Na6 18. Qc2 $14 c6 $140 $2 19. Qb3 Nc8 20. Rxg6) 15. Bg3 f5 16.
a3 (16. h4 $5 {CH.} Bxf3 17. gxf3 f4 18. Bh2 $16) 16... f4 $1 17. axb4 fxg3 18.
hxg3 Rxf3 $1 19. gxf3 Bxf3 20. Rh2 Bxd1 21. Qxd1 a5 $13 {Tisdall-Jansa Arhus
1983 35/570} (21... Qd6 22. Bh3 Kh8 23. Be6 Rf8 24. Qh5 Qe5 25. Qg6 Qf6 26.
Qxf6 Rxf6 $132 {0-1 Salo,H-Manninen,M/Helsinki 1992/EXT 2000 (61)})) 14... Bxf3
(14... f5 15. a3 fxe4 16. Qxe4 Bf5 17. Qxe7) 15. Bxf3 Nc6 $1 (15... Bxd4 16.
Nd5 $1 Nc6 17. Rxd4 Nxd4 18. Nxe7+ Kh7 19. Nxg6 Nxf3+ 20. gxf3 Qd6 21. Nxf8+
Rxf8 22. O-O $16) 16. d5 Nd4 17. Qd3 (17. Be2 f5 18. exf5 Nxe2 19. Nxe2 Rxf5
20. O-O $13) 17... Qd7 (17... Qd6 $5) (17... f5 $5 18. exf5 Nxf3+ 19. Qxf3 Rxf5
20. Qg4 Re5+ 21. Kf1 Kh7 22. Bg3 Rf5 23. Ke2 $1 Qd7 24. Qe4 Rd8 25. Rhe1 Bxc3
26. bxc3 Rxd5 27. Rxd5 Nxd5 28. Kf1 $44) 18. O-O Rac8 $6 (18... f5 $5 19. exf5
Nxf3+ 20. Qxf3 Qxf5 21. Qe2 $13) (18... e6 $6 19. Bg4) (18... c6 19. dxc6 Qxc6
20. Bxe7 Rfe8 21. Nd5 $1 $16 (21. Bh4 Nc4)) 19. Rfe1 g5 20. Bg3 c6 21. h4 $5 (
21. dxc6 Qxc6 22. Bg4 e6 $13) 21... g4 $6 (21... cxd5 $1 22. hxg5 hxg5 23. Nxd5
Nxd5 24. exd5 g4 25. Be2 Qxd5 26. Bf1 f5 27. Rxe7 Bf6 28. Ree1 Qxa2 $13) 22.
dxc6 Rxc6 23. Be2 Nc4 24. e5 $16 Nxe2+ (24... Nxb2 25. Qxd4 Qxd4 26. Rxd4 Rxc3
27. Rd7 $16) 25. Qxe2 Qe6 26. Nb5 Rc5 27. Nd4 Qc8 28. b4 $1 Rxe5 29. Bxe5 Nxe5
30. Qe4 (30. Rc1 $1 Qd7 31. Red1 $16) 30... e6 31. Nb5 a6 (31... f5 32. Qf4 a6
33. Nd4 $16) 32. Nd6 Qc3 33. Re3 Qc6 (33... Qb2 34. Re2 Qa3 35. Nxb7 $16 g3
$140 36. fxg3 Qxg3 37. Re3) 34. Nxb7 Qa4 35. Rd2 $18 f5 36. Qf4 Qb5 37. Nd6 Qc6
38. Re1 $138 Ng6 (38... Qc3 39. Red1 Rb8 $132) 39. Qe3 (39. Qc4 Qxc4 40. Nxc4
Bc3 41. Rxe6 Bxd2 42. Nxd2 $16) 39... e5 40. Qb3+ $138 1-0

[Event "Cappelle op 15th"]
[Site "Cappelle la Grande"]
[Date "1999.02.16"]
[Round "4"]
[White "Chuchelov, Vladimir"]
[Black "Mohandesi, Shahin"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2535"]
[BlackElo "2315"]
[Annotator "Chuchelov,V"]
[PlyCount "65"]
[EventDate "1999.02.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 070"]
[Source "ChessBase"]
[SourceDate "1999.06.08"]
[SourceVersion "1"]
[SourceVersionDate "1999.06.08"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 a5 8.
Rd1 a4 9. Qc2 O-O 10. e3 Nc6 (10... a3 11. bxa3 Nc6 12. Nb5) 11. a3 Bf5 12. Bd3
Bxd3 (12... Be6 13. Qe2 Bb3 14. Rc1) 13. Rxd3 Qd7 14. O-O Na5 15. Ne4 Rfc8 16.
Nc5 Qc6 17. e4 (17. Bxe7 f6) 17... Nd7 18. Rc3 Nxc5 19. Rxc5 Qd7 20. Ne5 Bxe5 (
20... Qe6 21. Be3 c6 22. f4) 21. dxe5 Nc6 22. Rd1 Qg4 23. Rxc6 (23. Be3 Rd8 24.
Rcd5 Rxd5 25. Rxd5) 23... bxc6 (23... Qxg5 24. Rxc7 Rd8 25. e6 fxe6 26. Rdd7)
24. Bxe7 Rab8 25. Bf6 h6 (25... Rxb2 26. Qd3 Re8 (26... Qxd1+ 27. Qxd1 Rcb8 28.
Bg5 Rb1 29. Bc1)) 26. h3 Rxb2 27. Qc1 (27. Qd3 Qf4) 27... Qe2 28. Rf1 Kh7 29.
e6 Rc2 30. Qf4 fxe6 (30... Rb8 31. Bc3 Rxc3 32. Qxf7+ Kh8 33. Qf6+ Kh7 34. Qxc3
Qxe4 35. Qf6) (30... Qd2) 31. Be5 h5 32. Qf7+ Kh6 33. Bg7+ 1-0

[Event "Biel"]
[Site "Biel"]
[Date "1986.07.22"]
[Round "3"]
[White "Cebalo, Miso"]
[Black "Rogers, Ian"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2475"]
[BlackElo "2515"]
[Annotator "Dolmatov,S"]
[PlyCount "105"]
[EventDate "1986.07.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "12"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qa4+ c6 (5... Bd7 $5 6. Qb3 dxc4 7.
Qxc4 O-O 8. e4 b5 9. Nxb5 Nxe4 $13) 6. cxd5 Nxd5 7. e4 Nb6 (7... Nxc3 8. bxc3
O-O 9. Ba3 Qc7 10. Be2 c5 $10 {Razuvaev,Y}) 8. Qd1 (8. Qc2 Bg4 9. Ne5 Be6 10.
Be3 O-O 11. Rd1 $14) 8... O-O 9. Be2 Bg4 10. Be3 Bxf3 (10... N8d7 11. O-O Bxf3
12. Bxf3 Nc4 $10 {Bukic,E-Timman,J/Banja Luka/1974/}) 11. gxf3 (11. Bxf3 Nc4
$10) 11... f5 12. Qd2 Qd6 (12... Na6 $22 13. e5 Nc7) 13. e5 Qb4 14. f4 (14. a3
Qb3 15. f4 Rd8 $13 (15... Nc4 $6 16. Qd1 Qxd1+ 17. Kxd1 $14)) 14... e6 (14...
N8d7 15. h4 Rad8 $132) 15. a3 Qe7 16. h4 h5 17. O-O-O Kh7 $10 (17... a5 $6 18.
Rdg1 Kh7 19. Rg3 Bh6 20. Rhg1 $40) 18. Qc2 Bh6 (18... a5 19. Na4 Nxa4 20. Qxa4
b5 21. Qc2 Nd7 22. Kb1 Rfc8 $10) 19. Kb1 N8d7 20. Qb3 Rfb8 (20... a5 21. Na4
Nxa4 22. Qxa4 b5 23. Qc2 Rfc8 $10) 21. Rc1 Nf8 22. Rcg1 Rd8 23. Rh3 Rd7 24. Bf3
Rad8 25. Na4 Nxa4 26. Qxa4 a6 27. Qc4 Qe8 28. Qc5 Rg7 29. Qb4 Qe7 30. Qb3 Re8
31. Rc1 Qd8 32. Rhh1 Rd7 33. Ka2 Rde7 34. Rc4 Qd7 35. Rhc1 Rg7 36. Rb4 Ree7 37.
Qc2 Qd8 38. Qb3 Rd7 39. Rh1 Qe7 40. Qc2 Qd8 41. Qb3 Rc7 42. Rc4 Rce7 43. Rb4
Kg8 44. Rc1 Kh8 $4 (44... Rd7 $10) 45. Bxc6 Rc7 (45... bxc6 46. Rb8 $18) 46.
Rxb7 $18 Qxh4 47. Rxc7 Rxc7 48. Qb8 Rxc6 (48... Re7 49. d5 $18) 49. Rxc6 Qh1
50. Rc5 h4 51. Qd8 Kg8 52. d5 exd5 53. e6 1-0

[Event "Gibraltar Masters 17th"]
[Site "Caleta"]
[Date "2019.01.31"]
[Round "10"]
[White "Edouard, Romain"]
[Black "Gallego Alcaraz, Andres Felipe"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2643"]
[BlackElo "2502"]
[Annotator "Edouard,R"]
[PlyCount "55"]
[EventDate "2019.01.22"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 $5 {
A very tricky variation, where Black should know his stuff well.} Be6 $1 {
The best move.} (7... O-O $143 {allows} 8. Rd1 $1 {restricting Black's
possibilities, since} Be6 {is now met by} 9. d5 $1 {and if} Bxc3+ $6 10. bxc3
Bxd5 $2 {White wins with} 11. c4 $1 Nxc4 12. e4 $18) 8. Qa3 O-O (8... Nc6 9. e3
a5 10. Bb5 O-O 11. Bxc6 bxc6 12. O-O Nc4 $1 13. Qc5 Nxb2 14. Qxc6 Nd3 15. Bg3
Nb4 16. Qc5 Na6 17. Qb5 c5 $1 18. Rfd1 $36 {and Black couldn't fully equalize
in Jakovenko,D (2713)-Navara,D (2715) Achaia 2013.}) (8... c5 $5 {should be
critical; and it's a typical Grunfeld move!} 9. Qxc5 $1 (9. dxc5 $6 Nc4 $1 10.
Qb4 O-O {is just great for Black:} 11. e3 (11. Qxb7 $6 Qa5 $40) 11... Na6 12.
Qb5 Rc8 $1 $132) (9. e4 cxd4 $1 10. Nb5 O-O $1 11. Nc7 Nc6 12. Nxa8 Qxa8 13.
Rc1 f5 $1 $44 {½-½ (66) Navara,D (2729)-Wei,Y (2675) Wijk aan Zee 2015.})
9... Nc6 10. e4 $5 (10. e3 Rc8 11. Qa3 O-O 12. Be2 Nc4 13. Qa4 Nxb2 14. Qb5 Qb6
$1 (14... Nc4 $6 15. O-O Qa5 16. Rfc1 {wasn't as precise in 1-0 (30) Le,Q 
(2703)-Navara,D (2706) Belfort 2012}) 15. Qxb6 axb6 16. Rb1 Na5 $1 17. Rxb2
Rxc3 18. O-O {This was played three times and now the engine comes up with an
improvement.} Nc4 $5 $146 (18... Rfc8 19. Rxb6 Ra3 20. Ne5 $14 {1-0 (43) Zhou,
W (2616)-Robson,R (2628) Ningbo 2013}) 19. Rb4 Rc8 20. h3 Bd5 21. Ne5 Nxe5 22.
dxe5 R8c5 $11) 10... Rc8 (10... Nxd4 $6 {I don't like this move, which gains
the pawn back, but accept to lose some time with his king} 11. Nxd4 Bxd4 12.
Bb5+ Kf8 13. Qa3 a6 14. Be2 $14 {is what we are hoping for.}) 11. Qa3 $5 (11.
Bb5 O-O 12. Bxc6 Rxc6 13. Qb4 {½-½ (78) Radjabov,T (2738)-Vachier Lagrave,M 
(2758) Berlin 2015} f5 $5 $13) 11... Nxd4 12. O-O-O $1 $146 O-O $1 13. e5 Nc4
$1 14. Qxa7 Qc7 $1 $146 {Computer move.} (14... Nb5 $6 15. Rxd8 Nxa7 16. Rxc8
Rxc8 17. Nd4 $1 Nxe5 18. Nxe6 fxe6 19. Kb1 $14 {1-0 (49) Wang Hao (2711)
-Mikhalevski,V (2538) Gibraltar 2018}) 15. Rxd4 (15. Bxc4 $6 Nxf3 16. Bxe6 fxe6
$15) (15. Qxd4 $2 Rfd8 $17) 15... Ra8 16. Rxc4 Bxc4 17. Qe3 Bxa2 {and Black
should objectively slightly worse (e.g. 18.Bd3) but he has good practical
chances.}) 9. e4 (9. e3 $5 {is definitely interesting as well, e.g.} N8d7 10.
Rd1 c6 11. Ng5 $1 Bd5 $1 (11... Bc4 12. Bxc4 Nxc4 13. Qb3 e5 14. dxe5 Ncxe5 15.
O-O Qb6 16. Qc2 $14 {1-0 (62) Wang,H (2715)-Li,C (2613) China 2010}) (11... Bf5
$6 12. e4 Bg4 13. Be2 $1 Bxe2 14. Nxe2 Qe8 15. Qh3 h6 16. Nf3 h5 17. e5 $5 Nd5
18. g4 $1 {went wrong for Black in 1-0 (32) Duda,J (2739)-Ivanchuk,V (2710)
Batumi 2018}) 12. e4 e5 13. dxe5 Re8 $1 {Shown by Grischuk.} 14. Nf3 (14. exd5
$2 Bxe5 15. Be3 Qxg5 $1 16. Bxg5 $4 Bxc3#) 14... Nxe5 15. Nxe5 Bxe5 16. Bxe5
Rxe5 17. Bd3 Qe7 18. Qxe7 Rxe7 19. f3 f5 20. Kf2 fxe4 21. Bxe4 Bxe4 22. Nxe4
$36 Nd5 23. Rhe1 Kg7 24. a3 {½-½ Jakovenko,D (2709)-Grischuk,A (2742)
Sharjah 2017.}) 9... c6 10. h4 $5 (10. Rd1 {with the idea 11.h4 is Adrien
Demuth's recommendation in his book "The Modernized Reti". But I believe
playing h4 right away could be even stronger.}) 10... N8d7 $6 $146 (10... h6 {
looked like the natural answer, but even then, the only game played went wrong
for Black pretty quickly:} 11. O-O-O N8d7 12. Kb1 Bg4 13. Be2 Qe8 14. e5 Nd5
15. Nxd5 cxd5 16. Qe3 h5 17. Ng5 $16 {½-½ (38) Lesiege,A (2517)-Mikhalevski,
V (2533) Quebec 2017.}) 11. h5 Bg4 12. hxg6 hxg6 13. e5 $1 {Preventing ...e5
for good.} Bxf3 (13... Re8 {with the idea ...Nf8 is the engine suggestion, but
it simply looks awful for Black!}) 14. gxf3 e6 (14... Nd5 15. Nxd5 cxd5 16.
O-O-O $16) 15. O-O-O Qc7 16. Be3 Rfc8 17. f4 {Getting ready to answer ...c5
with d5.} Nd5 (17... Bf8 18. Qb3 c5 {looked to me like the best practical try,
but anyway after the simple} 19. Kb1 {White has a decisive advantage.}) 18. Kb1
Bf8 19. Qb3 Qb6 20. Qc2 Nxc3+ (20... c5 21. Nxd5 exd5 22. f3 $1 $18 {/\Qh2})
21. Qxc3 Qb4 22. Qc2 Bg7 23. Bd3 Qe7 24. Be4 Rc7 25. Rdg1 Re8 $2 (25... Nf8 {
was the only way to keep the game going.}) 26. Bxg6 $1 fxg6 27. Qxg6 Nb6 (27...
Qf7 28. Rh8+ $18) (27... Nf8 28. Qh5 $18) 28. f5 1-0

[Event "EU-Cup 12th final"]
[Site "Budapest"]
[Date "1996.??.??"]
[Round "1"]
[White "Boensch, Uwe"]
[Black "Mikhalevski, Victor"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2525"]
[BlackElo "2500"]
[Annotator "Ernst,T"]
[PlyCount "109"]
[EventDate "1996.11.21"]
[EventType "team-k.o."]
[EventRounds "4"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Berlin SV Empor"]
[BlackTeam "Beer-Sheva Chess Club"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "ISR"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 (4... Nxc3 $5 5. bxc3 g6) 5. Qb3 Nb6
6. d4 Bg7 7. Bg5 O-O (7... Be6 8. Qc2 Nc6 9. Rd1 O-O 10. e3 Nb4 11. Qb1 a5 12.
Be2 a4 13. O-O h6 14. Bh4 c6 15. h3 N4d5 16. Rc1 a3 17. Nxd5 Bxd5 18. b3 f5 19.
Bg3 {Karpov,A-Vaganian,R/URS-ch38 Riga 1970/1-0 (42)}) (7... h6 8. Bh4 Be6 9.
Qc2 Nc6 10. Rd1 Nb4 11. Qb1 O-O 12. e3 Bf5 13. e4 Bg4 14. d5 g5 15. Bg3 f5 {
1/2-1/2 Tisdall,J-Jansa,V/Aarhus 1983/MCL 03 [Belov] (34)}) 8. Rd1 a5 (8... c6
9. e3 Be6 10. Qc2 Nd5 11. Be2 Qa5 12. O-O Re8 13. e4 Nxc3 14. bxc3 Nd7 15. c4
Bg4 16. Be3 e5 17. d5 {1-0 Timmerman,G-Peek,M/NLD-chT 1987 (35)}) 9. e3 a4 (
9... Na6 10. a3 Be6 11. d5 Bf5 12. Bxa6 Rxa6 13. Nd4 Bd7 14. Ne6 {1-0 Hergott,
D-Zebedin,W/Graz op 1987 (32)}) 10. Qc2 Nc6 (10... a3 11. b3 Nc6 12. Be2 Bf5
13. Qc1 Nd5 14. O-O Nxc3 15. Qxc3 Nb8 $2 16. Qb4 Nc6 17. Qxb7 Bd7 18. d5 Ra7
19. dxc6 Rxb7 20. cxb7 f6 21. Bh4 g5 22. Bg3 e5 23. b8=Q Qxb8 24. Rxd7 {
1-0 Jacoby,G-Fijalkowski,M/Hamburg HSK 1980 (27)}) 11. Be2 Bf5 12. Qc1 Nb4 13.
O-O N4d5 14. Nd2 Nxc3 15. bxc3 a3 16. c4 c5 17. Nb3 Na4 18. Bf3 Qc7 19. Qxa3
Nc3 20. Qxc5 Qxc5 21. Nxc5 Nxd1 22. Rxd1 Rxa2 23. Bxb7 Rb8 24. h3 e5 25. Be4
Bxe4 26. Nxe4 exd4 27. exd4 Ra4 28. Nd6 Rba8 29. d5 Be5 30. c5 Ra1 31. Rf1 f6
32. Bh4 Bxd6 33. cxd6 Kf7 34. g4 Rxf1+ 35. Kxf1 Ra5 36. Bg3 Rxd5 37. Ke2 Ke6
38. Ke3 h5 39. Kf3 Ra5 40. Ke2 Rc5 41. Kf3 Rd5 42. Ke3 Ra5 43. Kf3 g5 44. gxh5
f5 45. h4 Ra3+ 46. Kg2 f4 47. Bh2 Kf5 48. hxg5 Kxg5 49. h6 Kg4 50. f3+ Kg5 (
50... Rxf3 51. h7 Rh3 52. d7 f3+ 53. Kg1 f2+ 54. Kxf2 $18) 51. d7 Ra2+ 52. Kh3
Ra8 53. Bg1 Rd8 54. h7 Rh8 55. Kg2 1-0

[Event "Match/Team URS-World 20,5-19,5"]
[Site "Belgrade"]
[Date "1970.04.04"]
[Round "4.2"]
[White "Petrosian, Tigran V"]
[Black "Fischer, Robert James"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2650"]
[BlackElo "2720"]
[Annotator "Fischer/Petrossian"]
[PlyCount "104"]
[EventDate "1970.03.29"]
[EventType "team"]
[EventRounds "4"]
[EventCountry "YUG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Soviet Union"]
[BlackTeam "World"]
[WhiteTeamCountry "URS"]
[TimeControl "40/9000:16/5400:0"]

1. c4 g6 2. d4 Nf6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 c5 (6... O-O $142
7. Rc1 Nxc3 (7... Nb6 8. e3 N8d7 {P e5}) 8. Bxc3 Qd5 {Fischer=:F}) 7. Rc1 $1 {F
} Nxc3 (7... cxd4 $2 8. Nxd5 {F}) 8. Bxc3 cxd4 9. Nxd4 O-O 10. e3 Qd5 $1 {
Petrosian=:P/= F} (10... a6 {Evans,L} 11. Bc4 b5 12. Qf3 $14 {F}) 11. Nb5 (11.
Qb3 Qe4 $1 {P/F}) (11. a3 Rd8 {F}) 11... Qxd1+ 12. Rxd1 Nc6 13. Bxg7 (13. Bc4
a6 (13... Bf5) 14. Bxg7 axb5 $1 15. Bxf8 bxc4 16. Bh6 Rxa2 $10 {F}) 13... Kxg7
14. Be2 Bf5 {P 15... ac8 F} 15. g4 a6 $1 {P/F} (15... Be6 $2 16. Nc7 {F}) 16.
Nc3 (16. Nc7 $2 Rac8 17. Nxa6 Be6 (17... Be4 18. f3 Bxf3 19. Bxf3 bxa6 $15 {
<->B F}) 18. Nc5 Bxa2 $13 {F}) 16... Be6 17. f4 Rfd8 18. Kf2 Nb4 19. a3 Nd5 20.
Ne4 Nf6 (20... Rac8 $2 21. Ng5 {P} Rc2 22. Nxe6+ fxe6 23. e4 {F}) 21. Nxf6 exf6
(21... Kxf6 22. g5+ Kg7 23. Bf3 Rac8 24. Bxb7 Rc2+ 25. Kg3 Rxd1 26. Rxd1 Rxb2
27. Bxa6 Rb3 $10 28. Rd3 $4 Rb6 $19 {F}) 22. Bf3 Rac8 23. Rxd8 Rxd8 24. Rd1 Rc8
$2 {F} (24... Rxd1 25. Bxd1 Kf8 {F}) 25. Rd2 (25. Bxb7 Rc2+ 26. Kg3 Rxb2 27.
Bxa6 Rb3 28. Rd3 $4 Rb6 {P}) 25... Rc7 26. h4 h6 27. Kg3 {P 28. d6, 29. b6 F}
b5 28. Rd6 Rc2 29. b4 Rc3 30. Rxa6 Bc4 $1 {F} (30... Rxe3 31. Kf2 {P 32. e2 P}
Rc3 32. Be2 {F}) 31. f5 (31. Kf2 Rc2+ 32. Ke1 Rc3 33. Kd2 $2 Rd3+ {F}) 31... g5
(31... Rxe3 32. Kf4 Re1 33. fxg6 fxg6 34. Ra7+ Kf8 35. Be4) 32. hxg5 hxg5 33.
Kf2 Rc2+ 34. Kg1 Rc1+ 35. Kg2 Rc2+ 36. Kg3 Rc3 37. Kf2 Rc2+ 38. Ke1 Rc3 39. Ra5
Rxe3+ 40. Kf2 Rd3 {adjourned} 41. Bc6 Kf8 42. Bxb5 Bxb5 43. Rxb5 Rxa3 $10 {F}
44. Rd5 Rb3 45. Rd4 Ke7 46. Ke2 Ra3 47. Kd2 Rb3 48. Kc2 Re3 $1 {F} 49. Kb2 (49.
Rd3 Re4) (49. b5 Re5 50. Rb4 Kd6 51. b6 Re8 52. b7 Kc7 {F}) 49... Ke8 50. Kc1
Re2 $1 {F} (50... Ke7 $2 51. Kc2 $1 Ke8 (51... Ra3 52. Rd3 $1 $18 {F}) 52. b5
Re5 53. b6 Rb5 54. Rd6 Ke7 55. Rc6 $18 {F}) 51. Kd1 (51. b5 Re5 52. b6 Rb5 53.
Rd6 Ke7 54. Rc6 Rb4) 51... Ra2 52. Ke1 Rb2 1/2-1/2

[Event "MK Cafe Cup-A"]
[Site "Koszalin"]
[Date "1999.08.12"]
[Round "9"]
[White "Malaniuk, Vladimir P"]
[Black "Ftacnik, Lubomir"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2525"]
[BlackElo "2589"]
[Annotator "Ftacnik,L"]
[PlyCount "81"]
[EventDate "1999.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 073"]
[Source "ChessBase"]
[SourceDate "1999.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.12.01"]
[SourceQuality "1"]

1. d4 {Krasenkow,M} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7.
Be3 O-O 8. Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. Bxf3 ({As} 11. gxf3 {Krasenkow,M}
Na5 {is not very promising for White (see previous CBMs), he is looking for
other options.}) 11... Ne5 (11... Na5 $5 {Krasenkow,M} 12. O-O Nac4 13. Bc1 c6)
12. Be2 c6 {Krasenkow,M: 'Not a good idea. Black should urgently do something
with his e5 knight. This is one of the cases when a knight is placed very
badly in the centre. First, it is vulnerable to f2-f4 etc., second, it
disturbs Black's other pieces. '} (12... Nec4 $1 {Krasenkow,M} 13. Bc1 e6 14.
dxe6 Qxd1+ 15. Bxd1 fxe6 $11) 13. Qb3 cxd5 14. Rd1 $5 {[%mdl 4] This position
is quite challenging for black as white wants to get slightly better position
with pishop's pair. Krasenkow,M: 'White is playing similarly to the 11.gxf3
Ne5? line being, however, a tempo down.'} (14. Bxb6 $6 Qxb6 15. Qxb6 axb6 16.
Nxd5 Nc6 17. Nxb6 Bxb2 $15) (14. exd5 {Krasenkow,M} Rc8 $11) 14... Qc8 {
'?' Krasenkow,M. Krasenkow,M: 'Lubomir Ftacnik doesn't follow his own
recommendation! The text move is artificial and throws Black into serious
trouble. However, he has some problems anyway.'} (14... Nec4 $5 15. Bc1 (15.
Nxd5 Nxe3 16. Nf6+ Bxf6 17. Rxd8 Nxg2+ 18. Kf1 Rfxd8 19. Kxg2 Rd2 20. e5 $5 (
20. Qe3 Rxb2 21. e5 Nd5 22. Qf3 Rxe2 23. exf6 e6 24. Rc1 Rd2 $17) 20... Rxe2 (
20... Bxe5 21. Qe3 Bf4 (21... Rd5 22. Bf3 Bd4 23. Qxe7 Rd7 24. Qe2 $11) 22.
Qxe7 Nd5 23. Qe4 Bd6 24. Bc4 Nf4+ 25. Kf3 Rc8 26. Rc1 Rxc4 27. Qxc4 Rd3+ 28.
Ke4 Kg7 29. Qxd3 Nxd3 30. Kxd3 Bxh2 $11) 21. exf6 exf6 22. Rc1 (22. a4 Rd8 $1 (
22... Re5 23. Rc1 Rae8 24. Rc7 R8e7 25. Rxe7 Rxe7 26. a5 Nc8 27. Qd5 $16) 23.
a5 Nd5 24. Qxb7 Nf4+ 25. Kf3 g5 26. Qa6 Re5 $19) 22... Re7 $15) 15... d4 (15...
e6 16. exd5 Na5 17. Qb5 Nxd5 18. Nxd5 exd5 19. Rxd5 Qc7 20. Be3 Nc6 21. O-O
Rad8 $14) 16. Bxc4 Qc8 17. Bxf7+ (17. Nd5 Qxc4 18. Qxc4 Nxc4 19. b3 Nb6 20.
Nxe7+ Kh8 21. Ba3 Rfe8 $17) 17... Rxf7 18. Ne2 (18. Nb5 $6 a6 $1 19. Na3 Nd7
$15) 18... e5 19. f3 $11) (14... e6 15. exd5 exd5 16. Nxd5 Nxd5 17. Rxd5 Qc7
18. O-O b6 19. Rc1 Qb7 20. Rcd1 $16) (14... Nc6 $2 {Krasenkow,M} 15. exd5 Na5 {
[%csl Ra5]} 16. Qb4 Nc8 17. O-O Nd6 18. Nb5 b6 19. Nxd6 exd6 20. Ba6 Re8 21.
Qa3 Qh4 22. Rc1 Re4 23. g3 Qh5 24. Rc2 Qxd5 25. Rfc1 Rae8 26. b4 $1 {Bagirov,
V-Minzer,C/Anibal op4th 1997/1-0 (55)}) (14... Rc8 $5 {Krasenkow,M} 15. exd5 $5
(15. Bxb6 Qxb6 16. Qxb6 axb6 17. Nxd5 Rc2) (15. Nxd5 Nxd5 16. Rxd5 (16. exd5 $5
Qa5+ 17. Bd2 Qc7) 16... Qc7 17. Bxa7 Qc2 $132 {Ftacnik}) 15... Nec4 16. Bc1 $14
{[%csl Gc1,Gd5,Ge2]}) 15. Nxd5 $1 Nxd5 16. exd5 {Krasenkow,M: 'Now it is not
easy for Black to complete his development as his queen is misplaced and the
c4 square is unavailable for his knight, which, therefore, has no good
prospects. Meanwhile, White has a pair of bishops and a strong d5 pawn.'} (16.
Rxd5 e6 17. Rc5 Qd7 18. O-O Rfd8 19. Rd1 Qe7 20. Rdc1 $16) 16... Ng4 $6 (16...
a6 17. O-O (17. Qb4 Re8 18. f4 Ng4 19. Bc5 Qd7) 17... b5 $1 18. Bd4 (18. Rc1
Qd7 19. f4 Nc4 20. Bxc4 bxc4 21. Qxc4 Bxb2 $11) 18... Rd8 19. f4 Nc4 20. Bxg7
Kxg7 21. Qc3+ Kg8 22. f5 $14) 17. Bf4 Qf5 18. Bg3 $1 {Open character of the
position in combination with the limiting d5 pawn and bishop's pair strongly
favour white's chances.} b6 {Krasenkow,M: 'So, Black is forced to create a
weakness in his camp.'} 19. O-O Nh6 20. Rfe1 Qg5 (20... Qf6 $5 21. Bf3 Rad8 22.
Be5 Qg5 23. Bxg7 Kxg7 24. Qc3+ Kg8 25. Qc7 Nf5 26. Be4 Nd6 27. Bb1 Nc8 $14) 21.
h4 Qf6 22. Bd3 {Krasenkow,M: 'White prevents 22...Nf5. Just compare the
centralized position of the white pieces with the black ones!'} Rad8 {'?!'
Krasenkow,M.} (22... Nf5 {Krasenkow,M} 23. Bxf5 gxf5 24. Qb4 $1 Rfe8 25. Be5
$18) (22... Rfd8 $142 {Krasenkow,M}) 23. Re2 (23. Rd2 Qd4 24. Re4 (24. Rxe7 Nf5
$1) 24... Qxd5 25. Rxe7 Nf5 26. Rxa7 Nxg3 27. Qxd5 Rxd5 28. fxg3 Rfd8 29. Ra3
$11) 23... Nf5 $2 {Krasenkow,M: 'Still, Black makes this move as he doesn't
see another one!'} (23... Rd7 $5 24. Bb5 Rdd8 25. Qa4 $1 (25. Re4 {Krasenkow,M}
Nf5 $140 26. Be5) 25... Nf5 26. Be5 Qxh4 27. Qxh4 Nxh4 28. Bxg7 Kxg7 29. Rxe7
$16) 24. Bxf5 gxf5 25. Qb4 (25. Qa4 $1 b5 26. Qb4 e6 27. Be5 Qg6 28. Bxg7 Qxg7
29. d6 $16) 25... Rd7 (25... e6 {Krasenkow,M} 26. d6 $18) 26. Be5 Qxe5 (26...
Qg6 27. Bxg7 Qxg7 28. Rxe7 a5 29. Qe1 Rxe7 30. Qxe7 Qxb2 31. d6 $18) 27. Rxe5
Bxe5 {Krasenkow,M: 'With his pawn on g6 (instead of f5) Black could
successfully fight for a draw but now his position is compromised as White can
attack his weakened kingside. Still, White needs accurate play to win.'} 28. g4
$1 {The technical part of the winning process is conducted on a very high
level by Malaniuk. The key is to gain access to the black king.} f4 29. Kg2 (
29. b3 Rc8 30. Qe4 $18) 29... Rc8 30. Qe4 {Krasenkow,M: 'Perhaps, giving up
the b2 pawn was not necessary.'} (30. Rd2 {Krasenkow,M}) 30... Bxb2 (30... Bd6
{Krasenkow,M} 31. g5 $40) 31. Qxf4 Rcd8 32. Qf5 Rd6 33. Rd3 Bg7 34. g5 b5 (
34... e6 {Krasenkow,M} 35. dxe6 fxe6 36. Rxd6 Rxd6 37. Qf4 $18) 35. Rf3 Rf8 36.
h5 a5 37. h6 $1 Bh8 (37... Bd4 38. Rf4 (38. Qe4 Bc5 39. Rc3 Bb4 40. Rc7 Rg6 41.
f4 Bd6 42. Rb7 f6 $1 $16) 38... Bc5 39. Re4 Rg6 40. f4 $18) 38. Re3 Rg6 (38...
Re8 39. Rxe7 $1 Rxe7 40. Qc8+ $18) 39. f4 (39. Rxe7 $6 Bf6 40. Qxf6 Rxf6 41.
gxf6 Rb8 42. d6 Kf8 43. Re5 Rb7 44. d7 Rxd7 45. Rxb5 Ke8 46. Re5+ Kd8 47. Rxa5
$18) 39... f6 40. d6 fxg5 41. Qd5+ 1-0

[Event "Budapest FS02 GM"]
[Site "Budapest"]
[Date "2000.02.13"]
[Round "9"]
[White "Wang, Rui"]
[Black "Fogarasi, Tibor"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2496"]
[BlackElo "2429"]
[Annotator "Ftacnik,L"]
[PlyCount "49"]
[EventDate "2000.02.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "9"]
[SourceTitle "CBM 076"]
[Source "ChessBase"]
[SourceDate "2000.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2000.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Bd2 O-O 7. e4 Nb6 8.
Be3 Bg4 9. Be2 Nc6 10. d5 Bxf3 11. gxf3 Na5 12. Bd4 c5 13. Bxg7 (13. Bxc5 Nac4
14. Bxc4 Nxc4 15. Qe2 Nxb2 16. Qxb2 Qc7 17. Bb4 (17. Qa3 Rfc8) 17... a5 $17 {
Atalik}) 13... Kxg7 14. Qc2 (14. h4 e5 15. b3 Nd7 16. Qd2 Qf6 17. Nd1 b6 18. h5
Qf4 19. Ne3 Nf6 20. h6+ Kg8 21. Qc3 Rac8 {0-1 Vaulin,A-Fogarasi,T/Zalakaros/
1999/ (45)}) (14. b3 e5 15. Qd2 Nd7 16. f4 f6 17. h4 {1/2-1/2 Raetsky,
A-Greenfeld,A/Biel/1999/ (17)}) 14... e5 15. Nd1 c4 $2 {Black faces enough
problems even without this reckless move, that makes the problem worse.
Especially the knight a5 has become even more vulnerable than before.} (15...
Nd7 16. Qc3 $1 (16. Ne3 c4 17. h4 b5 18. h5 Nb7 19. O-O-O Nd6 20. Rdg1 g5 21.
Qd2 Kh8 22. Kb1 f6 {1/2-1/2 Sokolov,I-Atalik,S/New York/1997/ (42)}) 16... a6
$6 (16... f6 17. Bb5 b6 18. Bxd7 Qxd7 19. h4) 17. f4 f6 18. f5 $1 g5 (18...
gxf5 19. Ne3 $5 fxe4 20. Bg4 b6 21. Be6 $44) 19. h4 h6 20. Ne3 Qb6 21. a3 c4
22. Rd1 Nc5 23. Qb4 $1 {1-0 Kortschnoj,V-Polgar,J/Dos Hermanas/1999/ (43)}) 16.
Qc3 Nd7 17. f4 f6 (17... Nf6 18. fxe5 Nxe4 19. Qd4 f5 20. e6+ $18) 18. f5 (18.
fxe5 Nxe5 (18... fxe5 19. Bg4 Nc5 20. Qxe5+ $18) 19. h4 $16) 18... g5 (18...
Nc5 19. Qf3 b5 20. Rg1 $16) 19. h4 h6 (19... Nc5 20. Qe3 Qe7 21. hxg5 fxg5 22.
Rc1 $18) 20. b4 $1 cxb3 21. axb3 b6 (21... Nc5 22. Qxa5 $18) 22. b4 Nb7 (22...
Rc8 23. Qh3 $18) 23. Qc6 Qc8 (23... Qe7 24. Qxb7 Qxb4+ 25. Kf1 $18) 24. Ba6 Rb8
25. Rc1 $1 {Terrible punishment, black loses material as his knights are
trapped.} (25. Rc1 $1 Qxc6 26. dxc6 Nbc5 27. bxc5 Nxc5 28. c7 $18) 1-0

[Event "SVK-ch"]
[Site "Kaskady"]
[Date "2002.07.04"]
[Round "8"]
[White "Priehoda, Vitezslav"]
[Black "Sutovsky, Emil"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2425"]
[BlackElo "2660"]
[Annotator "Ftacnik,L"]
[PlyCount "42"]
[EventDate "2002.06.27"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SVK"]
[EventCategory "12"]
[SourceTitle "CBM 090"]
[Source "ChessBase"]
[SourceDate "2002.09.20"]
[SourceVersion "1"]
[SourceVersionDate "2002.09.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 O-O 7. Rc1 Nb6 8.
Bg5 h6 9. Bh4 g5 10. Bg3 c5 11. Nb5 (11. dxc5 Bxc3+ 12. Rxc3 (12. bxc3 Qxd1+
13. Rxd1 Na4 14. Be5 f6 15. Bxb8 Rxb8 16. e3 Nxc5 17. Bc4+ Be6 18. Bxe6+ Nxe6
19. Nd4 Ng7 20. Ke2 Rfc8 {0-1 Liebert,H-Szabo,L/Luhacovice 1971/ (46)}) 12...
Qxd1+ 13. Kxd1 Na4 14. Ra3 (14. Rc2 Bf5 15. Rd2 Nc6 16. Ne5 (16. e3 Nxc5 17.
Bb5 Ne4 18. Bxc6 bxc6 19. Re2 Rfd8+ 20. Kc1 Nc5 21. Ne1 Rd5 {0-1 Hoi,C-Schmidt,
W/La Valetta 1980/ (32)}) 16... Rfd8 17. Nxc6 bxc6 18. Rxd8+ Rxd8+ 19. Kc1 Rd5
20. b4 Nc3 21. Kb2 Ne4 22. Kc1 a5 23. a3 axb4 24. axb4 Rd4 25. f3 Rc4+ 26. Kd1
Nxg3 27. hxg3 Rxb4 28. e4 Be6 29. Bd3 {1/2-1/2 Vladimirov,E-Schmidt,W/Halle
1976/ (76)}) (14. Re3 Nxc5 15. Bxb8 Rxb8 16. Rxe7 Rd8+ 17. Kc1 Bf5 18. Rc7 Na6
19. Rc4 b5 20. e4 bxc4 21. exf5 Rbc8 22. h4 g4 23. Ne5 Rd4 24. Kc2 Re4 25. f4
Nb4+ {0-1 Lakunza,J-Tukmakov,V/Oviedo 1991/ (31)}) 14... Nxc5 15. e3 Rd8+ 16.
Ke1 Nc6 17. Bc7 Rd7 18. Bb6 Na6 19. Bxa6 axb6 20. Bc4 Rxa3 21. bxa3 {1/2-1/2
Bronstein,D-Kortschnoj,V/Leningrad 1970/ (21)}) (11. e3 cxd4 (11... Nc6 12. d5
(12. dxc5 Bxc3+ 13. bxc3 Qxd1+ 14. Rxd1 Na4 15. Rc1 (15. Bc4 Nb2 16. Bb3 Nxd1
17. Kxd1 Kg7 18. Kc1 Bg4 19. h4 Bxf3 20. gxf3 Rac8 21. hxg5 hxg5 22. Rg1 Na5 {
0-1 Szabo,L-Pinter,J/Budapest 1975/ (34)}) 15... Nxc5 (15... Be6 16. Nd4 Bxa2
17. Ra1 Nxd4 18. cxd4 Nc3 19. Bd3 b5 20. Bxb5 Bd5 21. Bd3 Bxg2 22. Rg1 {
1-0 Popov,L-Navarovszky,L/Polanica Zdroj 1976/ (44)}) 16. Nd4 Ne4 17. Nxc6 bxc6
18. Bc4 Nxg3 19. hxg3 Kg7 20. O-O Rb8 21. Rfd1 Rb2 22. Rb1 Rc2 23. Rbc1 Rd8 24.
Rxc2 Rxd1+ 25. Kh2 Kf6 {0-1 Schmidt,W-Ribli,Z/Wijk aan Zee 1972/ (40)}) 12...
Bxc3+ 13. Rxc3 Qxd5 14. Qxd5 Nxd5 15. Rxc5 Be6 16. Bb5 Rac8 17. Bxc6 Rxc6 18.
Rxc6 bxc6 19. O-O c5 20. Rc1 Rc8 21. h4 f6 22. hxg5 hxg5 23. a3 a5 24. Nd2 Nb6
25. Kf1 c4 {0-1 Bukic,E-Ribli,Z/Bucharest 1971/ (34)}) (11... g4 12. Ne5 cxd4
13. exd4 Nc6 14. Nxc6 bxc6 15. Be5 Bxe5 16. dxe5 Qxd1+ 17. Nxd1 Be6 18. Ne3 Nd7
19. Bc4 Nxe5 20. Bxe6 fxe6 21. Ke2 {1/2-1/2 Lengyel,L-Ribli,Z/Hungary 1975/ 
(79)}) 12. Nxd4 Nc6 13. Nxc6 Qxd1+ 14. Nxd1 bxc6 15. h4 g4 16. e4 Bb7 (16...
Be6 17. Ba6 Rad8 18. b3 Rd4 19. f3 gxf3 20. gxf3 Bc8 21. Be2 Bb7 22. Rg1 Kh8
23. Ne3 e6 24. Ng4 {1-0 Langeweg,K-Portisch,L/Amsterdam 1971/ (49)}) 17. Ne3
Bxb2 18. Rc2 Ba3 19. Nxg4 Bb4+ 20. Ke2 Kh7 21. f3 Rad8 22. Be1 c5 23. Kf2 Bc8
24. Ne5 {1/2-1/2 Najdorf,M-Portisch,L/Siegen 1970/ (83)}) (11. d5 e6 12. dxe6
Qxd1+ 13. Rxd1 Bxe6 14. e3 N8d7 15. Bb5 {1/2-1/2 Popov,L-Pytel,K/Zemun 1980/ 
(15)}) 11... cxd4 (11... Na6 12. e3 cxd4 13. Nfxd4 e5 14. Nf3 Qe7 15. Qd6 {
1/2-1/2 Lazarev,V-Barbeau,S/Montreal/2002/ (15)}) 12. Nfxd4 $6 {[%mdl 32]
White's kingside is critically underdeveloped, so this ambitious move is
unsound. Black is well prepared to punish the opponent for his unfounded
courage.} (12. Nbxd4 Nc6 13. Nxc6 Qxd1+ 14. Rxd1 bxc6 15. Be5 Be6 16. Bxg7 Kxg7
17. b3 a5 18. h4 g4 19. Nd4 a4 20. e4 axb3 21. axb3 Ra2 22. Be2 c5 23. Nf5+
Bxf5 24. exf5 h5 25. f3 {1/2-1/2 Priehoda,V-Rotstein,A/Wattens 2000/ (43)})
12... a6 $1 (12... Nc6 13. Nxc6 (13. e3 Nxd4 14. exd4 Nd5 15. h4 $13) 13...
Qxd1+ 14. Kxd1 bxc6 15. Nc3 f5 $15) 13. Bc7 (13. Nc7 Bxd4 14. Nxa8 (14. e3 Bxb2
15. Qxd8 Rxd8 16. Rc2 Ba3 17. Nxa8 Bf5 18. Nxb6 Bb4+ 19. Ke2 Bxc2 $19) 14...
Nxa8 15. e3 (15. Bxb8 Qa5+ 16. Qd2 Bxf2+ 17. Kd1 Rd8 $19) 15... Qa5+ 16. Qd2
Qxd2+ 17. Kxd2 Ba7 $17) 13... Qd5 $1 (13... Qd7 14. Bxb6 axb5 15. e3 Rxa2 16.
Qb3 $14) 14. Bxb6 axb5 15. e3 (15. Nf3 Qxd1+ 16. Kxd1 Bxb2 17. Rc7 Rxa2 $19)
15... Rxa2 (15... Nd7 16. Bc7 Rxa2 17. h4 $1 $15) 16. Rc5 Qd6 (16... Qe4 17.
Rxb5 Bd7 18. Rb4 Na6 19. Bxa6 Qxg2 20. Bxb7 Qxb7 $17) 17. Rxb5 (17. Nf5 Qxb6
18. Nxe7+ Kh8 19. Rxc8 Rxc8 20. Nxc8 Qc7 $19) 17... Bd7 {It becomes clear,
that white is too overstretched and his pieces very loose.} 18. Bc5 (18. Rb3
Ba4 $19) 18... Qd5 19. Qb3 Ra1+ (19... Qxb3 20. Rxb3 Na6 21. Ba3 b5 22. h4 $15)
20. Kd2 Qe5 21. Nf3 (21. Rxb7 Qxc5 22. Rxb8 Qa5+ 23. Kd3 Bxd4 24. Rxf8+ Kxf8
$19) 21... Qc7 0-1

[Event "FIDE Chess.com Grand Swiss"]
[Site "Douglas"]
[Date "2019.10.11"]
[Round "2"]
[White "Sargissian, Gabriel"]
[Black "Hansen, Eric"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2690"]
[BlackElo "2611"]
[Annotator "Ftacnik,L"]
[PlyCount "55"]
[EventDate "2019.10.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "IOM"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

{[%evp 0,55,40,28,19,-16,43,45,35,37,70,10,58,51,50,-18,45,18,4,5,19,14,19,6,
12,6,19,20,20,30,41,20,-29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,35,56,56,56,174,
112,397,456]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. h4 {The Gruenfeld
defence has excellent reputation, it is next to impossible to beat Black in
any line out of the opening. No wonder White players are ready to move
mountains in order to create some chances. 5.h4 is trying to activate h1 rook
against the short castling of black king.} dxc4 6. e4 c5 7. d5 O-O 8. Bxc4 b5
$5 {This sharp line with the immediate thrust against the center is completely
dominating in this position. White has not castled yet and this fact opens
scope for counterplay.} 9. Bxb5 Nxe4 10. Nxe4 Qa5+ 11. Nc3 Bxc3+ 12. bxc3 Qxb5
13. h5 Qc4 14. hxg6 fxg6 15. Rh4 Bg4 $6 $146 {[%mdl 8] Life is not exactly
sweet for Black after the virtually forced move 15...Qxc3+, but the position
remains roughly balanced. Black's novelty is clever, but White manages to
refute it over the board.} (15... Qxc3+ $1 16. Bd2 Qd3 17. Bh6 (17. Bg5 Qxd1+
18. Rxd1 Rf5 (18... e6 19. d6 Nd7 20. Be3 Rf5 21. Ng5 Nf6 22. Rc1 Rd5 23. Rxc5
Rxd6 24. Bd4 {1-0 (54) Akobian,V (2632)-Chirila,I (2521) Dallas 2014} Nd7 $11)
19. Re4 Bb7 20. Rxe7 Bxd5 21. Re8+ Kf7 22. Re7+ Kg8 23. Re8+ Kf7 24. Re7+ Kg8 {
1/2-1/2 (24) Edouard,R (2634)-Istratescu,A (2619) Saint-Quentin 2015}) 17...
Qxd1+ 18. Rxd1 Re8 19. Ng5 Nd7 20. Ne6 Rb8 21. Nc7 Rd8 22. Ne6 Re8 23. Nc7 Rd8
24. Re4 Rb7 25. d6 exd6 26. Ne8 Rb4 $11 {1-0 (36) Riazantsev,A (2651)-Kokarev,
D (2636) Novosibirsk 2016}) 16. Nd2 $1 Qxc3 $2 {If Black's novelty still could
charitably be named "dubious", this insanely brave move is unfortunately
losing.} (16... Bxd1 17. Nxc4 Ba4 18. Bg5 Rf5 19. Bxe7 Rxd5 20. Ne3 Rd7 21. Bg5
Bc6 22. Ng4 $1 Rd6 23. Nf6+ Rxf6 24. Bxf6 Nd7 25. Bg5 Bxg2 26. O-O-O $16) 17.
Qxg4 Qxa1 18. Qe6+ Kh8 {Hansen was facing a truly depressing choice of the
least bad continuation. All the lines are hopeless, so it became a matter of
taste...} (18... Rf7 19. Rf4 Qg7 20. Bb2 Qf8 21. Ne4 Nd7 22. Rxf7 Qxf7 23. Qxd7
Rb8 24. Bc3 $18) (18... Kg7 19. Nb3 Qc3+ 20. Bd2 Qf6 21. Bh6+ Kh8 22. Bxf8 Qxf8
23. Nxc5 $18 {A very symptomatic position, since despite the material balance
Black is completely lost as his pieces are not playing at all.}) 19. Qxe7 $1
Qxc1+ 20. Ke2 Rxf2+ 21. Kxf2 Qxd2+ 22. Kg1 h5 {Yet another rotten moment for
the defender when both moves are unable to repair the damage.} (22... h6 23.
Qf6+ Kh7 24. Kh2 Nd7 25. Qf7+ Kh8 26. Qxg6 $18) 23. Qf8+ Kh7 24. Re4 $6 {
It is more than human to lose part of the concentration in winning positions.
Sargissian is a very strong GM, but even he fails to find the effortless win
with 24.Rf4!.} (24. Rf4 $1 Qxf4 25. Qxf4 Na6 26. d6 $18) 24... Nc6 25. Qxa8
Qxd5 26. Qe8 $1 {Not every player is aware of the priviledged importance of
the central d- and e-files. Despite the nominal material balance, the black
king is very weak and endgames tend to be simply hopeless.} c4 (26... Kg7 27.
Qe6 Qxe6 28. Rxe6 Nb4 29. a3 Kf7 30. Rd6 Nc2 31. Ra6 c4 32. Kf2 c3 33. a4 $18)
27. Qe6 Qc5+ (27... Qxe6 28. Rxe6 Nb4 29. a3 Nd3 30. Re7+ Kg8 31. Rxa7 $18) 28.
Kh1 {The combined threats against the king and the c4 pawn render the
situation hopeless for Black.} (28. Kh1 c3 (28... Nd4 29. Qf7+ Kh6 30. Qf4+ Kh7
31. Rxd4 $18) 29. Qf7+ Kh6 30. Re6 Qg5 31. Qf8+ Kh7 32. Rxc6 $18) 1-0

[Event "HUN-ch 54th"]
[Site "Budapest"]
[Date "2004.08.20"]
[Round "2"]
[White "Horvath, Csaba"]
[Black "Flumbort, Andras"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2546"]
[BlackElo "2493"]
[Annotator "Ftacnik,L"]
[PlyCount "73"]
[EventDate "2004.08.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "13"]
[SourceTitle "CBM 103"]
[Source "ChessBase"]
[SourceDate "2004.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 (9. Rd1 c5 10. dxc5 Qa5 11. e4 Rac8 12. e5 Rxc5 13. exf6 Rxc4 14.
fxg7 Re4+ 15. Be3 Rd8 16. Bxa6 bxa6 17. Rd5 Rxe3+ 18. fxe3 Bb5 19. Rxd8+ Qxd8 {
0-1 Ermenkov,E-Orev,P/Bulgaria 1973/ (42)}) (9. e3 c5 10. Qb3 Be6 11. Bc4 cxd4
12. exd4 Bxc4 13. Qxc4 Qb6 14. O-O e6 15. Be5 Rfc8 16. Qe2 Nb4 17. Rfe1 {
1/2-1/2 Bogdanov,V-Vrenegoor,T/Paris 1995/ (17)}) 9... c5 10. e5 (10. d5 Qa5 (
10... b5 11. Qe2 c4 12. e5 Nh5 13. Bd2 Nb4 14. O-O-O Nd3+ 15. Kb1 Bf5 16. Ka1
b4 17. Nb5 Qa5 18. Nfd4 a6 19. Nc6 {0-1 Popov,R-Pavlov,O/Novosibirsk 2002/ (19)
}) (10... e6 11. Be2 exd5 12. exd5 Re8 13. Be5 Qb6 14. O-O Nh5 15. Bxg7 Nxg7
16. Qf4 Qb4 17. Qd6 Bg4 18. Bxa6 Bxf3 19. Bd3 Qxb2 20. Rac1 Qd2 21. Bb5 Nf5 {
0-1 Solomunovic,I-Saric,I/Pula 2004/ (37)}) 11. Bd2 Qb4 12. Rc1 Qxc4 13. Bxc4
b5 14. Be2 c4 15. e5 Ng4 16. Bf4 Nc5 17. h3 Nh6 18. O-O a6 19. g4 Rac8 20. Rfd1
{1-0 Javakhishvili,L-Melia,S/Batumi 2001/ (68)}) 10... Be6 $6 {The smart move
5.Qa4+ has messed up the situation, since it excluded some standard variations.
Flumbort is taking a gamble with attack on the queen, since in similar
situations she get's sacrificed for three pieces.} (10... Nh5 11. Be3 cxd4 12.
Qxd4 Bc6 13. Be2 Qa5 14. O-O Bxf3 15. Bxf3 Bxe5 16. Qd5 Qxd5 17. Nxd5 Rfe8 18.
Rac1 e6 19. Nc3 Re7 20. a3 Bf4 21. Bxh5 Bxe3 22. fxe3 gxh5 {1/2-1/2 Sokolov,
I-Van Wely,L/Belgium 2003/ (37)}) 11. exf6 Bxc4 12. fxg7 Bxf1 $6 {[%mdl 1024]
For some strange reason black is ready to enhance white's material advantage.
The compensation for the missing material is not present, so the operation is
at best dubious.} (12... Kxg7 13. Bxc4 cxd4 14. Rd1 Qb6 15. Be5+ f6 16. Bxd4
Qxb2 17. O-O Rac8 18. Rb1 $36) 13. gxf8=Q+ Qxf8 (13... Kxf8 14. Rxf1 cxd4 15.
O-O-O d3 16. Ne1 $16) 14. Kxf1 cxd4 15. Nxd4 Qc8 (15... Rd8 16. Ndb5 e6 17. Be3
$16) 16. Nde2 (16. Rd1 Nb4 17. Nde2 $16) 16... Qf5 17. Rd1 e5 18. Be3 Nb4 19.
h4 $1 (19. a3 Nc2 20. Nd5 Nxe3+ 21. Nxe3 Qe6 22. Nc3 $16) 19... Qe6 20. b3 Nc2
21. Rh3 {Horvath has to be patient, sometimes it takes time to show the real
weight of the material.} Rc8 22. Kg1 f5 (22... b6 23. Rd2 Nxe3 24. Rxe3 $16)
23. Bxa7 Qa6 (23... Nb4 24. Be3 f4 25. Bc1 $18) 24. Be3 b5 25. Nd5 Kf7 26. h5
f4 (26... Nxe3 27. hxg6+ hxg6 28. fxe3 Kg7 29. Nec3 $18) (26... gxh5 27. Bb6
Qxa2 28. Rxh5 $18) 27. hxg6+ (27. Bb6 g5 28. Rhd3 $18) 27... Qxg6 (27... hxg6
28. Rh7+ Kf8 29. Bb6 $18) 28. Nexf4 $1 {The countersacrifice of the piece is
laudable, as it fully exploits the attacking potential of coordinated white's
pieces.} exf4 29. Nxf4 Qf5 (29... Nxe3 30. Nxg6 Nxd1 31. Ne5+ Kf6 32. Nd7+ Kg7
33. Rg3+ Kh6 34. Ne5 $18) 30. Rd5 Qf6 (30... Nxe3 31. Rxf5+ Nxf5 32. Rxh7+ $18)
31. Rd7+ (31. Rxb5 Nxe3 32. Rb7+ Kg8 33. fxe3 $18) 31... Kg8 (31... Ke8 32.
Rdxh7 Nxe3 33. Rxe3+ $18) 32. Nd5 Qa1+ 33. Kh2 Nxe3 (33... Ra8 34. Rg3+ Kh8 35.
Bg5 $18) 34. Rxe3 Rf8 35. f4 Qb2 36. Rh3 Rf7 (36... Qa1 37. Rhxh7 Rd8 38. Rhg7+
Kh8 (38... Qxg7 39. Rxd8+ Kh7 40. Rd7 Qxd7 41. Nf6+ $18) 39. a3 Rxd7 40. Rxd7
$18) 37. Rg3+ (37. Rg3+ Kf8 38. Rd8#) 1-0

[Event "Olympiad-40"]
[Site "Istanbul"]
[Date "2012.09.04"]
[Round "7.2"]
[White "Fressinet, Laurent"]
[Black "Sutovsky, Emil"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2714"]
[BlackElo "2687"]
[Annotator "Ftacnik,L"]
[PlyCount "74"]
[EventDate "2012.08.28"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "TUR"]
[SourceTitle "CBM 151"]
[Source "ChessBase"]
[SourceDate "2012.11.13"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.13"]
[SourceQuality "1"]
[WhiteTeam "France"]
[BlackTeam "Israel"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "ISR"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 {Sutovsky is one of the greatest experts in the
Grьnfeld Defence. He does not hesitate to use same motifs even for this
position, in which White has avoided playing d4.} 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4
Bg7 7. e4 Bg4 8. Bb5+ {Black has decided to attack the pawn centre of the
opponent with the help of pressure from both bishops. The theory in this
relatively unknown variation has been developed in the recent years. Fressinet
is well prepared and he flies straight into the sharp theoretical discussion.}
(8. a4 Bxf3 9. gxf3 Nc6 10. d5 Nd4 11. Qd1 O-O 12. a5 Nd7 13. Be3 c5 14. dxc6
Nxc6 15. Bb5 a6 16. Bxc6 bxc6 17. Qe2 Ne5 18. Rd1 Qc8 19. f4 Ng4 20. Bc5 $11 {
1/2-1/2 Ivanchuk,V (2714)-Svidler,P (2713)/Warsaw 1999 (38)}) (8. Be3 Bxf3 (
8... O-O 9. Rd1 a5 (9... Nc6 10. d5 Ne5 11. Be2 Nxf3+ 12. gxf3 Bh5 13. Rg1 Qc8
14. Rg3 c6 15. a4 Nd7 16. a5 Ne5 17. Rc1 Kh8 18. a6 bxa6 19. Qa4 Rb8 $11 {
0-1 Buhmann,R (2569)-Areshchenko,A (2650)/Plovdiv 2008 (68)}) 10. Be2 a4 11.
Qc2 Nc6 12. Ne5 Nxe5 13. dxe5 Qc8 14. f3 Be6 15. f4 Nc4 16. Bf2 c6 17. O-O b5
18. Bc5 Qc7 19. Kh1 b4 20. Nxa4 Rxa4 21. Bxc4 Bxc4 22. Qxc4 $16 {1-0 Piket,J 
(2619)-Sutovsky,E (2612)/Internet 1999 (28)}) 9. gxf3 Bxd4 10. O-O-O (10. Rd1
e5 11. h4 Qe7 12. h5 Nc6 13. hxg6 fxg6 14. Bh3 a6 15. Ke2 Na5 16. Qc2 O-O 17.
Nd5 Qf7 18. Qxc7 Nxd5 19. Qxf7+ Rxf7 20. exd5 Bxe3 21. fxe3 Kg7 22. Rc1 $16 {
1-0 Lu,S (2514)-Wang Yue (2702)/Xinghua 2012 (40)}) 10... e5 11. h4 Bxe3+ 12.
fxe3 Qf6 13. h5 g5 14. f4 exf4 15. Nd5 Nxd5 16. Rxd5 Nc6 17. Rg1 h6 18. Bc4 Ne7
19. Rdd1 O-O 20. Rdf1 $11 {0-1 Fressinet,L (2707)-So,W (2673)/Wijk aan Zee
2011 (42)}) (8. d5 Bxf3 9. gxf3 c6 10. Be3 O-O 11. Rd1 cxd5 12. Nxd5 (12. exd5
Na6 13. h4 Qd6 14. h5 Qb4 15. hxg6 fxg6 16. Bxa6 Qxb3 17. axb3 bxa6 18. Ke2
Rfd8 19. Rd3 Rab8 $11 {1-0 Buhmann,R (2581)-Van der Weide,K (2502)/Dresden
2007 (58)}) 12... Nxd5 13. Rxd5 Qc7 14. Be2 Nc6 15. O-O e6 16. Rd3 Be5 17. h3
Bf4 18. Bc5 Rfc8 19. Rfd1 Qe5 20. Bd6 Qg5+ 21. Kh1 Ne5 $15 {0-1 Romanishin,O 
(2560)-Kortschnoj,V (2670)/Tbilisi 1976 (54)}) 8... c6 9. Ng5 O-O 10. Be2 Bxe2
{The exchange of the light squared bishops is not fully in Black's interest,
but the retreat to the c8 square makes an absurd impression.} (10... Bc8 11. h4
c5 12. dxc5 N6d7 13. Be3 Qa5 14. Qc4 b5 15. Qb3 Na6 16. O-O h6 17. Nf3 b4 18.
Qa4 Qxa4 19. Nxa4 Bb7 20. Rac1 Rac8 21. Rfd1 $16 {0-1 Illescas Cordoba,M (2591)
-Negi,P (2615)/Sestao 2010 (53)}) 11. Nxe2 Na6 {[%mdl 4] The first critical
position, most probably Black had it on the board before the game. The move of
the knight to a6 completes the first phase of Black's mobilisation. White
needs a bit more time in order to achieve the same level of coordination.} (
11... N8d7 12. Qh3 h6 13. Nf3 h5 14. e5 c5 15. e6 cxd4 16. exf7+ Rxf7 17. Ng5
Rf5 18. g4 Rxg5 19. Bxg5 Ne5 $15 {1-0 Gordon,S (2535)-Bok,B (2488)/Germany
2011 (28)}) (11... e5 12. Qh3 h6 13. Nf3 exd4 14. Bxh6 Re8 15. O-O-O c5 16. Ng5
Qd7 17. Qh4 f6 18. Bxg7 Qxg7 19. Nh3 Nc6 20. Rd3 g5 $17 {0-1 Navara,D (2706)
-Svidler,P (2741)/Prague 2012 (41)}) 12. Qh3 (12. Be3 Qd6 13. O-O Qb4 14. Qxb4
Nxb4 15. Rfc1 e5 16. Nf3 exd4 17. Bxd4 Rfe8 18. Bxg7 Kxg7 19. Ng3 Rad8 20. Ne1
Rd2 $15 {0-1 Aronian,L (2805)-Navara,D (2712)/Wijk aan Zee 2012 (60)}) 12... h6
13. Nf3 Qd7 (13... Nb4 14. O-O Nc2 15. Rb1 Qd7 16. Qxd7 Nxd7 17. Bd2 $14) 14.
Qh4 {Fressinet is not satisfied with the prospect of an exchange of queens
with equal chances. He would much prefer to try the logical attack on the
kingside.} (14. Qxd7 Nxd7 15. O-O c5 16. Be3 $11) 14... h5 (14... g5 15. Qh5 (
15. Bxg5 hxg5 16. Nxg5 Rfe8 17. O-O-O Qd6 $15) 15... Nb4 16. O-O Qe6 17. Ng3
$13) 15. h3 {White does not have any reason to expect that his immediate
attack against the black king should be successful. On the other hand it does
not mean, that the defender will be able to find the best ideas and get enough
counterplay.} (15. O-O c5 $11) 15... c5 16. g4 (16. Be3 Nc4 17. O-O Nxb2 18.
dxc5 Rac8 $15) 16... cxd4 (16... Nb4 17. O-O hxg4 (17... Nc2 18. gxh5 Nxa1 19.
hxg6 fxg6 20. Ng5 Rf6 21. Qh7+ Kf8 22. Nf4 $18) 18. Ng5 Rfe8 19. dxc5 $13) 17.
gxh5 d3 $2 {[%mdl 128] Both grandmasters deserve credit for the generous
approach to the fighting in very sharp position. Sutovsky makes a third
consecutive move with the same pawn, which inevitably leads to the neglecting
of chances to improve the pieces. It was much better to centralise the knight
with 17...Nc5 with roughly equal chances.} (17... Nc5 18. h6 $5 (18. Ng5 $2 Ne6
$17) (18. O-O Bf6 (18... gxh5 19. Nfxd4 Bxd4 20. Rd1 Qc6 (20... Bxf2+ 21. Kxf2
Qxd1 22. Qg5+ Kh7 23. Qxh5+ Kg8 24. Qg4+ Kh8 25. Qh4+ Kg8 26. Bh6 Qd6 27. Rg1+
$18) 21. Nxd4 Qxe4 22. Qxh5 Qg6+ $13) (18... Ne6 19. Nf4 d3 20. hxg6 fxg6 21.
Nxe6 Rxf3 22. Ng5 Rf6 23. b3 $14) 19. Bg5 Bxg5 20. Nxg5 e5 $15) 18... Bf6 19.
Bg5 Qd6 20. Nfxd4 $11) 18. hxg6 (18. Nf4 Bf6 19. Qg4 Nb4 $17) 18... fxg6 19.
Ng5 Rf6 20. Nf4 Qd6 21. Rg1 $2 {Rigidity in thinking is the enemy not only for
the chess grandmasters. Fressinet was aware of the relative success of his
kingside attack, the rook move to the semi-open file is trying to maximise the
pressure. He is thus missing the chance for castling and the transfer of his
own king to the safety, which would now give him a real advantage.} (21. O-O $1
Nc4 22. Rd1 Ne5 23. Bd2 $16) 21... Nc4 22. Nd5 Nb4 $1 {White has probably
underestimated the might of the counterplay of the black pieces. The material
imbalance does not play the key role at this point.} 23. Nxf6+ (23. Nxb4 d2+
24. Ke2 Qxb4 $19) 23... Qxf6 (23... exf6 24. Qh7+ Kf8 25. Ne6+ Qxe6 26. Rxg6
d2+ 27. Bxd2 Qxe4+ 28. Be3 Nc2+ 29. Kf1 N2xe3+ 30. Kg1 Qe7 31. Re1 Rd8 $17) 24.
Rg3 {Fressinet is consequent in his attack with transfer of the rook for the
blow along the 3rd rank. Black's counterplay will come in time and will be
rather impressive.} (24. Rb1 Rd8 25. Bd2 Nc2+ 26. Kd1 Nxd2 27. Kxd2 Nd4 $17)
24... d2+ 25. Bxd2 Nc2+ 26. Kd1 (26. Ke2 Nxd2 27. Rd3 Nxa1 28. Rxd2 Rc8 29. Qg4
Qc6 $17) 26... Rd8 $1 27. e5 {White is desperately trying to change the flow
of the game with an attacking move that weakens the pressure of the enemy
along the a1-h8 diagonal. At the moment when his own king is under the fire
ofthe concentrated black forces it looks bizarre.} (27. Qh7+ Kf8 28. Rf3 Rxd2+
29. Kc1 Qxf3 30. Ne6+ (30. Nxf3 Bxb2+ 31. Kb1 N2a3#) 30... Ke8 31. Qg8+ Kd7 32.
Nc5+ Kc7 $19) (27. Kxc2 Qxb2+ 28. Kd1 Qxd2#) 27... Rxd2+ 28. Kc1 Nd4 $1 (28...
Nxe5 29. Rc3 Qf5 30. Kxd2 Nxa1 $17) 29. Qxd4 (29. exf6 $2 Ne2+ 30. Kb1 Rxb2#)
29... Qc6 $1 {Even modern chess can be full of twists and sheer fantasy! White
is under pressure, since the threats vary between check on h1 to the fatal
opening of the long diagonal for the bishop.} (29... Rxd4 $2 30. exf6 Bxf6 31.
Rb1 $14) 30. Qxd2 (30. Qh4 Qh1+ $19) (30. Qe4 Bxe5 $1 31. Qxc6 (31. Rb1 Rxf2
32. Qxc6 Bf4+ 33. Kd1 Rd2+ 34. Ke1 Bxg3+ $19) 31... Bxb2+ 32. Kb1 bxc6 $19)
30... Nxd2+ 31. Kxd2 Bxe5 {The wild phase of the game is over and despite
nominal material equality White is lost against the attack of the enemy forces.
} 32. Rg4 Qd5+ (32... Qb6 33. Rag1 Qxb2+ 34. Ke3 Bc7 $19) 33. Ke2 (33. Kc2 Qb5
34. Re1 Qxb2+ $19) 33... Bxb2 34. Rag1 (34. Rd1 Qxa2 35. Kf1 Kg7 $19) 34...
Qxa2 {Sutovsky has managed to win two pawns, but the sorrows of white king are
not over yet.} 35. Ne4 Kf7 36. Ng5+ (36. Rxg6 Be5+ 37. Kf3 Qb3+ 38. Ke2 Qc4+
$19) 36... Ke8 37. Kf3 a5 {The passed pawn can not be sensibly stopped. The
prospect of its advance managed to convince Fressinet that this was the
perfect moment to capitulate.} 0-1

[Event "EU-chT (Men) 12th"]
[Site "Batumi"]
[Date "1999.12.05"]
[Round "7.2"]
[White "Mchedlishvili, Mikheil"]
[Black "Ftacnik, Lubomir"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2441"]
[BlackElo "2589"]
[Annotator "Ftacnik,L"]
[PlyCount "90"]
[EventDate "1999.11.06"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "GEO"]
[SourceTitle "CBM 074"]
[Source "ChessBase"]
[SourceDate "2000.02.01"]
[SourceVersion "1"]
[SourceVersionDate "2000.02.01"]
[SourceQuality "1"]
[WhiteTeam "Georgia II"]
[BlackTeam "Slovakia"]
[WhiteTeamCountry "GEO"]
[BlackTeamCountry "SVK"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. d4 Bg7 5. cxd5 Nxd5 6. Bd2 O-O 7. e4 Nb6 8.
Be3 Bg4 9. Be2 Nc6 10. d5 Bxf3 11. gxf3 Na5 12. Bd4 Qd6 13. Bxg7 (13. Nb5 Qb4+
14. Qd2 Qxd2+ 15. Kxd2 c6 16. Bxg7 Kxg7 17. dxc6 Nxc6 18. Rhd1 f5 19. Ke1 Rac8
{1-0 Shabtai,R-Jansa,V/Gausdal/1995/ (69)}) 13... Kxg7 14. Qd2 (14. Qd4+ e5 15.
Qd3 c6) (14. f4 $5 f6 (14... Qxf4 $2 15. Qd4+ e5 16. Qc5) (14... Qf6)) 14...
Qf6 15. O-O-O (15. b3 Rfd8 16. Rc1 (16. Qe3 c6 17. Qc5 Nac4 $1) 16... e6 $1 (
16... c6 $2 17. Nd1) 17. Nb5 Nc6 18. Nxc7 Rac8 19. Ne8+ $5 (19. Qc3 Qxc3+ 20.
Rxc3 exd5 21. exd5 Nxd5 22. Nxd5 Rxd5 $15) 19... Rxe8 20. dxc6 Rxc6 21. Rxc6
bxc6 22. O-O Rd8 $15 {1/2-1/2 Arlandi,E-Konopka,M/Baden/1999/ (47)}) (15. f4
Nac4 16. Bxc4 Nxc4 17. Qe2 Nb6 18. Qe3 Nc4 19. Qe2 Nb6 20. Qe3 Nc4 21. Qe2 {
1/2-1/2 Sokolov,I-Shirov,A/Las Vegas/1999/ (21)}) 15... c6 16. Qd4 {White will
suffer in an endgame, since his pawn structure is seriously flawed by the
doubled f pawn.} (16. Qe3 Nac4 17. Qd4 cxd5 18. Qxf6+ Kxf6 19. Nxd5+ Nxd5 20.
Rxd5 Nb6 21. Rb5 Rfd8 22. Rd1 Rac8+ 23. Kb1 Rxd1+ 24. Bxd1 e5 {0-1 Gazarek,
D-Konopka,M/Pardubice/1999/ (62)}) 16... Qxd4 17. Rxd4 cxd5 18. Nxd5 Rac8+ 19.
Kb1 (19. Kd2 Nac4+ $17) (19. Kd1 Rfd8 $1 $17) 19... Nc6 20. Rd2 (20. Nxb6 Nxd4
21. Nxc8 Rxc8 22. Bd1 Kf6 $15) (20. Rd3 Nxd5 21. Rxd5 Rfd8 22. Rhd1 Rxd5 23.
Rxd5 (23. exd5 Ne5 24. d6 e6 $5 $17) 23... Rd8 $15) 20... Rfd8 21. Rhd1 Nxd5
22. exd5 (22. Rxd5 Rxd5) 22... Ne5 23. d6 e6 $1 {[%mdl 4096] Black undertakes
some risk in order to play for win. White d6 pawn can be either strong or very
weak.} (23... Rxd6 24. Rxd6 exd6 25. Rxd6 Re8 26. f4 Nc6 27. Bb5 Re1+ 28. Kc2
Rh1 29. Bxc6 bxc6 30. Kd2 $15) 24. f4 (24. Rd4 $5 Rd7 25. Bb5 Nc6 26. Rc4 (26.
R4d2 a6 $17) 26... Kf6 $17) 24... Nc4 $1 25. Rd4 (25. Bxc4 Rxc4 26. Rc1 Rxc1+
27. Kxc1 Kf6 28. Kc2 e5 $17) 25... Nb6 26. Bf3 Rd7 27. Rb4 (27. a4 $5 Rcd8 (
27... Rc4 28. Rxc4 Nxc4 29. Bxb7 Rxd6 30. Rxd6 (30. Rc1 Nxb2 $1 $19) 30... Nxd6
31. Bc6 Kf6 32. Kc2 Kf5 33. Kd3 Kxf4 34. b4 Ke5 $15) 28. Rb4 Rxd6 29. Rxd6 Rxd6
30. a5 Nd5 31. Rxb7 a6 $15) 27... Kf6 28. a4 Rc5 $1 29. Rc1 (29. Bxb7 $5 Rxb7
30. Rxb6 axb6 31. d7 Rxd7 32. Rxd7 Rh5 33. Rb7 Rxh2 34. Rxb6 Rxf2 35. a5 h5 36.
Rb4 Rf1+ 37. Ka2 Rd1 $17) 29... Rxc1+ 30. Kxc1 Nd5 31. Rb5 a6 (31... Rxd6 32.
Rxb7 a6 33. Bxd5 Rxd5 34. Rb6 a5 35. b4 axb4 36. Rxb4 $15) 32. Rb3 (32. Rc5
Nxf4 $19) 32... Kf5 (32... Rxd6 33. Bxd5 $1 (33. Rxb7 Nxf4 34. b4 Nd3+ 35. Kb1
Rd4 $19) 33... Rxd5 34. Rxb7 Rd4 35. b4 Rxf4 36. Rb6 Rxf2 37. Rxa6 Rxh2 38. b5
$17) 33. Bxd5 exd5 34. Rb4 $6 (34. Re3 $5 Rxd6 35. Re7 Rf6 36. Rxb7 Kxf4 37. a5
Kg4 38. Rb6 Rxf2 39. Rxa6 $17) 34... Kg4 {Black king is marching towards
isolated white pawns.} 35. a5 (35. Kd2 a5 $1 36. Rb5 Kxf4 37. Rxd5 Ke4 38. Rd3
Ke5 $17) 35... h5 36. Kd2 Kh3 37. Kd3 (37. Rb6 Kxh2 38. Ke3 Kg2 39. Kd4 h4 $19)
37... Kxh2 38. Kd4 Rxd6 (38... h4 39. Kxd5 h3 40. f5 gxf5 41. Rf4 Kg1 42. Rxf5
h2 43. Rg5+ Kxf2 44. Rh5 Kg3 45. Rh8 Rd8 46. Rh7 Rg8 47. d7 Kg2 $19) 39. Rxb7
Rf6 (39... h4 40. Rxf7 h3 41. f5 Kg2 42. Kc5 h2 43. Kxd6 h1=Q $19) 40. Ke3 (40.
Rb6 Rxf4+ 41. Ke3 Re4+ 42. Kd3 (42. Kf3 g5 $1) 42... Kg2 43. Rxa6 h4 44. Rc6 (
44. Rf6 h3 45. Rxf7 Rh4 46. Rc7 h2 47. Rc1 Kxf2 48. Rh1 Kg2 49. Rxh2+ Kxh2 $19)
44... h3 45. Rc2 Rh4 46. f4+ Kg3 47. Rc1 h2 48. Rh1 Rxf4 $19) 40... Kg2 41. Rb6
Re6+ $1 (41... d4+ 42. Kd3 Rxf4 43. Rxa6 h4 44. Rc6 h3 45. Rc1 h2 $19) 42. Rxe6
fxe6 43. b4 h4 44. b5 axb5 45. f5 (45. a6 h3 46. a7 h2 47. a8=Q h1=Q $19) 45...
gxf5 (45... gxf5 46. a6 h3 47. a7 h2 48. a8=Q h1=Q 49. Qg8+ Kf1 50. Qxe6 Qe4+
$19) 0-1

[Event "Linares Anibal op 04th"]
[Site "Linares"]
[Date "1997.??.??"]
[Round "7"]
[White "Bagirov, Vladimir"]
[Black "Minzer, Claudio Javier"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2505"]
[BlackElo "2430"]
[Annotator "Ftacnik,L"]
[PlyCount "109"]
[EventDate "1997.02.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ESP"]
[SourceTitle "CBM 058"]
[Source "ChessBase"]
[SourceDate "1997.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Nf3 Bg4 9. Be2 Nc6 10. d5 Bxf3 11. Bxf3 (11. gxf3 Ne5 (11... Na5 12. Bd4 Qd6 (
12... e5 13. Bc5 Re8 14. Bb5 c6 15. dxc6 bxc6 16. Ba6 Bf8 17. Bxf8 Rxf8 18.
Qxd8 Raxd8 19. Rd1 Rd4 20. Ke2 Rfd8 21. b3 {Soppe,G-Malisauskas,V/Erevan olm 
(08) 1996/1-0 (74)}) 13. Nb5 Qb4+ 14. Qd2 Qxd2+ 15. Kxd2 c6 16. Bxg7 Kxg7 17.
dxc6 Nxc6 18. Rhd1 f5 19. Ke1 Rac8 20. Nd4 Kf6 {Shabtai,R-Jansa,V/Gausdal Int 
(02)/1995/1-0 (69)}) 12. Qb3 (12. Bd4 c5 (12... e6 13. f4 Ned7 14. Bxg7 Kxg7
15. Qd4+ (15. dxe6 fxe6 $17 {><f4}) 15... Qf6 16. O-O-O (16. Qxf6+ Nxf6 17. Bf3
exd5 18. e5 Nfd7 19. Nxd5 Nxd5 20. Bxd5 c6 21. Bb3 Nc5 $15) 16... exd5 17. Nxd5
Nxd5 18. exd5 Rad8 19. Bf3 Rfe8 20. Rd3 Nb6 {0-1 Tyrtania,M-Lagunov,A/Berliner
Sommer/1994 (29)}) 13. Bxc5 Rc8 14. Bd4 Rc4 15. Bxc4 Nbxc4 16. Kf1 Qc8 17. Kg2
Nxb2 18. Qd2 Nec4 19. Qc2 Bxd4 20. Rac1 a6 21. a4 Qc5 22. Qb3 Nd3 {1/2-1/2
Akhsharumova,A-London,D/New York op/1987/}) 12... Qc8 (12... c6 13. O-O-O cxd5
(13... Qc7 14. Kb1 Ned7 15. h4 cxd5 16. Nxd5 Nxd5 17. Rxd5 b6 18. h5 Nc5 19.
Qc4 e6 20. Rg5 Rac8 {0-1 Shabtai,R-Honfi,K/Budapest FS09 IM-A (07)/1994 (33)})
14. Nxd5 Nxd5 15. Rxd5 Qc8+ 16. Kb1 Qh3 (16... e6 17. Rc5 Qd7 18. Rd1 Qe7 19.
Rdc1 Nc6 $11) 17. Bd4 Qg2 (17... Nd7 18. Bxg7 Kxg7 19. Qxb7 Qg2 20. Rf1 Nf6 21.
Ra5 Rfe8 22. Rxa7 Rxa7 23. Qxa7 Nxe4 24. Qd4+ Nf6 {1/2-1/2 Grabuzova,T-Peptan,
C/Timisoara-W (13)/1994 (44)}) 18. Rc1 Qxh2 19. Qc3 f6 20. Qb3 Nf7 21. Qxb7 Bh6
22. Rd1 Rfe8 23. Rd7 {1-0 Wilhelmi,C-Honfi,K/Budapest FS03 IM-B (07)/1995 (32)}
) 13. h4 h5 14. O-O-O c6 15. Kb1 Ned7 16. d6 Qe8 17. Rhg1 Kh7 18. f4 Rd8 19. e5
exd6 20. Rxd6 Nc8 21. Rdd1 {1-0 Boensch,U-Gyorkos,L/Szekszard op (06)/1989 (28)
}) 11... Ne5 (11... Na5 12. O-O Nac4 13. Bc1) 12. Be2 c6 (12... Nec4 13. Bc1 e6
14. dxe6 Qxd1+ 15. Bxd1 fxe6 16. Bb3 $14) 13. Qb3 cxd5 14. Rd1 (14. Bxb6 $6
Qxb6 15. Qxb6 axb6 16. Nxd5 Nc6 17. Nxb6 Bxb2 $15) (14. exd5 Rc8 15. O-O Nec4
$11) 14... Nc6 $2 (14... Rc8 15. Nxd5 Nxd5 16. Rxd5 Qc7 17. Bxa7 Qc2 $132) 15.
exd5 Na5 {xNa5} 16. Qb4 Nc8 (16... Bxc3+ 17. Qxc3 Nxd5 18. Qe5 Nxe3 19. Rxd8
Nxg2+ 20. Kf1 Raxd8 21. Qxa5 $18) 17. O-O Nd6 18. Nb5 b6 (18... Nxb5 19. Bxb5
a6 20. Be2 b5 21. Bg5 $14) 19. Nxd6 exd6 (19... Qxd6 20. Qxd6 exd6 21. b4 Nb7
22. Rc1 $16) 20. Ba6 Re8 21. Qa3 Qh4 22. Rc1 (22. b4 $6 Nc4 23. Bxc4 Qxc4 $15)
22... Re4 23. g3 Qh5 (23... Qg4 $2 24. f3) 24. Rc2 (24. b4 Rh4 $3 25. bxa5 (25.
gxh4 Qg4+ 26. Kh1 Qf3+ 27. Kg1 Qg4+ $11) 25... Rxh2 $40) 24... Qxd5 (24... Rh4
$2 25. f4 $1 $18) 25. Rfc1 Rae8 (25... Re7 26. Rd2 Qe6 27. b4 Nb7 28. Bc4 $16)
26. b4 $1 Bd4 (26... Nb7 27. Rd2 Rxe3 28. Qxe3 Rxe3 29. Rxd5 Re7 30. Rc8+ Bf8
31. Rb8 $18) (26... Rxe3 27. fxe3 Nb7 28. Qa4 Rxe3 29. Rc8+ Bf8 30. Qd1 $18)
27. Bxd4 Rxd4 28. bxa5 Rd1+ 29. Bf1 (29. Rxd1 $4 Qxd1+ 30. Bf1 Qxc2 $19) 29...
Ree1 30. Rc8+ Kg7 31. Qc3+ Kh6 (31... f6 32. Qxe1 (32. Rxd1 Qxd1 33. Rc7+ Kh6
34. Qc4 $18) 32... Rxe1 33. Rxe1 $18) 32. Qxe1 (32. Rxd1 Qxd1 33. Qc4 d5 34.
Qb5 d4 35. Re8 $18) 32... Rxe1 33. Rxe1 Qxa5 34. Re2 b5 35. Rcc2 (35. Bg2 b4
36. Rc4 $18) 35... b4 36. Red2 Qb6 37. Bc4 f5 (37... Kg7 38. Rd5 a5 39. Rcd2
$18) 38. Bd5 Qa5 39. Bb3 Qb6 40. Rd5 a5 41. Rcd2 Qa7 42. Ba4 (42. Rxd6 a4 43.
Bd1 $18) 42... Qe7 43. Rxd6 Qe1+ 44. Kg2 Qe4+ 45. f3 Qe3 46. R6d3 Qe1 (46...
Qb6 47. Rd7 Qe3 48. Bb3 $18) 47. Rd5 Qe3 48. Bb3 Qe1 49. Rf2 $1 Qe8 50. Rxa5
Qe7 51. Rd5 Kg5 52. Rfd2 Qe3 53. Rd7 h5 (53... Kh6 54. Bg8 $18) 54. h4+ Kh6 55.
Bg8 (55. Bg8 g5 56. R2d6+ $18) 1-0

[Event "EU-ch 5th"]
[Site "Antalya"]
[Date "2004.05.17"]
[Round "3"]
[White "Anastasian, Ashot"]
[Black "Kristjansson, Stefan"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2587"]
[BlackElo "2404"]
[Annotator "Ftacnik,L"]
[PlyCount "57"]
[EventDate "2004.05.15"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "TUR"]
[SourceTitle "CBM 101"]
[Source "ChessBase"]
[SourceDate "2004.07.27"]
[SourceVersion "1"]
[SourceVersionDate "2004.07.27"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Na4 Bf5 7. Nh4 {
White has to be a very strong player in order t o afford such a peculiar
stgrategy. Both knights are sitting at the edge while black is developing the
pieces.} Nc6 8. Nxf5 gxf5 9. e3 e5 (9... Qd6 10. Nc5 f4 11. Bb5 fxe3 12. fxe3
O-O 13. O-O Rab8 14. Ne4 $16) 10. dxe5 Nxe5 11. Be2 (11. Qb3 c6 12. Bd2 (12.
Qxb7 $2 Rb8 13. Qxa7 Nb4 $19) 12... Qe7 13. Be2 O-O-O 14. O-O $14) 11... Qd6
12. O-O O-O-O 13. Qc2 f4 $5 {Kristjansson correctly sacrifices a pawn in order
to get some activity on the central squares.} (13... Qg6 14. Nc5 f4 15. Qxg6
hxg6 16. e4 $14) 14. exf4 (14. Qf5+ Qd7 15. Qxd7+ Nxd7 16. Rd1 c6 17. e4 Rhe8
18. Bf3 N5f6 $11) 14... Nc6 15. Bg4+ (15. Qf5+ Kb8 16. Qxf7 Rd7 17. Qh5 Nxf4
18. Bxf4 Qxf4 19. Bb5 $14) 15... Kb8 16. Qc5 (16. Qc4 Nd4 17. Nc3 h5 18. Bd1
Nb6 $11) 16... Nd4 17. Qxd6 Rxd6 18. Rb1 (18. Bd1 Re8 19. Bd2 c6 $11) 18... Bh6
$6 {Black is eager to restore material equality, but white will surprise him.}
(18... f5 19. Bd1 Re8 20. Nc3 Nxc3 21. bxc3 Ne2+ 22. Bxe2 Rxe2 23. Rb5 Bxc3 24.
Rxf5 $11) 19. Bh5 (19. g3 f5 20. Bd1 Rg8 21. Kh1 Bg7 $11) 19... Bxf4 20. Rd1 $1
(20. Bxf7 $2 Ne2+ 21. Kh1 Bxc1 22. Re1 Ndf4 23. g3 Bd2 $19) (20. Bxf4 Nxf4 21.
Bxf7 Rf8 22. Bb3 Nfe2+ 23. Kh1 Rdf6 24. Bc4 (24. f3 $2 Ng3+ 25. hxg3 Ne2 $19)
24... Rxf2 25. Rxf2 Rxf2 26. Nc5 $11) 20... Bxc1 $6 (20... Be5 21. Bxf7 Nf6 22.
Be3 $14) 21. Rxd4 $1 Nf4 (21... Bh6 22. Bxf7 $16) 22. Rxd6 cxd6 23. Bxf7 {
Anastasian has reached the best position in this game, with extra pawn and
black pieces poorly coordinated his chances are excellent.} Rc8 (23... Rf8 24.
Bh5 Nxh5 25. Rxc1 Nf4 26. Nc3 $16) 24. g3 Nd3 25. Be6 Rc7 (25... Rc2 $2 26. Bf5
Rxf2 27. Bxd3 Be3 28. Kh1 $18) 26. Bf5 Ne5 (26... Nb4 27. Nc3 Bd2 28. Ne4 Rc1+
29. Rxc1 Bxc1 30. Nxd6 $18) 27. Kg2 (27. Nc3 Bxb2 28. Nb5 Rc1+ 29. Rxc1 Bxc1
30. Nxd6 $16) 27... d5 28. Nc3 Bxb2 29. Nxd5 (29. Nxd5 Rc5 30. Nb4 $1 a5 31.
Rxb2 axb4 32. Rxb4 $18) 1-0

[Event "Voskresensk"]
[Site "Voskresensk"]
[Date "1990.??.??"]
[Round "?"]
[White "Naumkin, Igor"]
[Black "Neverov, Valeriy"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2455"]
[BlackElo "2505"]
[Annotator "Ftacnik,L"]
[PlyCount "69"]
[EventDate "1990.07.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "9"]
[SourceTitle "CBM 019"]
[Source "ChessBase"]
[SourceDate "1990.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.12.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 O-O 7. Qb3 $5 (7.
Rc1) 7... Nb6 (7... Nxc3 8. Bxc3 b6 9. e4 Bb7 $132) 8. Rd1 Bg4 9. e3 (9. Bg5 $5
) 9... Bxf3 10. gxf3 N8d7 11. f4 (11. Bg2 c5 12. d5) 11... c5 12. d5 c4 $5 13.
Qc2 (13. Bxc4 Nc5 14. Qb4 Rc8 $132) 13... Nc5 14. e4 Rc8 15. Be3 Qd7 16. Rg1 (
16. Be2 e6 (16... Nca4 17. Rg1)) 16... e6 17. dxe6 Qxe6 18. e5 f6 19. f5 $1
Qxe5 (19... Qxf5 $2 20. Qxf5 gxf5 21. Bh6 Rc7 22. Nd5 Nxd5 23. Bxc4 Kh8 24.
Rxg7 Rxg7 25. Rxd5 $36) (19... gxf5 $13) 20. fxg6 f5 21. gxh7+ Kh8 22. Be2 Qxh2
(22... Nd3+ 23. Kf1 $13) 23. Kf1 Ne6 24. Bf3 Qh3+ 25. Bg2 Qh5 26. Bxb7 Rcd8 27.
Re1 Qf7 28. Bf3 f4 29. Bxb6 axb6 30. Bd5 Rxd5 $1 31. Nxd5 Qh5 32. Ne7 (32. Qe4
Qh3+ 33. Ke2 Nd4+) 32... Qh3+ 33. Rg2 Qh1+ (33... f3 $2 34. Ng6+ Kxh7 35. Nf4+
Qf5 36. Rh2+ $18) 34. Rg1 Qh3+ 35. Rg2 {Ftacnik,L} 1/2-1/2

[Event "Bundesliga 0304"]
[Site "Germany"]
[Date "2004.03.08"]
[Round "11.1"]
[White "Bauer, Christian"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2602"]
[BlackElo "2723"]
[Annotator "Ftacnik,L"]
[PlyCount "62"]
[EventDate "2003.11.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 100"]
[Source "ChessBase"]
[SourceDate "2004.06.01"]
[SourceVersion "1"]
[SourceVersionDate "2004.06.01"]
[SourceQuality "1"]
[WhiteTeam "St Ingbert"]
[BlackTeam "Baden Oos"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 h6 8.
Bh4 Be6 9. Qc2 Nc6 10. Rd1 Nb4 11. Qb1 O-O 12. e3 Bf5 13. e4 Bg4 14. d5 f5 15.
a3 g5 16. Bg3 f4 17. axb4 fxg3 18. hxg3 Rxf3 19. Be2 $5 $146 {[%mdl 4] It is
hard to imagine, that white has found this move over the board. The sacrifice
of a piece could become quite dangerous for black.} (19. gxf3 Bxf3 20. Rh2 Bxd1
21. Qxd1 Qd6 (21... a5 22. bxa5 Rxa5 23. Bh3 Nc4 24. Be6+ Kh8 25. Qh5 Qf8 26.
Qxg5 Nxb2 27. Ke2 Qf6 {1/2-1/2 Tisdall,J-Jansa,V/Aarhus 1983/ (35)}) 22. Bh3
Rf8 23. Be6+ Kh8 24. Qh5 Qe5 25. Qg6 Qf6 26. Qxf6 Rxf6 27. e5 (27. Ke2 Rf8 28.
Nd1 Nc4 29. b3 Nd6 30. Ne3 Nxe4 31. Nf5 c6 32. dxc6 bxc6 33. Nxh6 Bxh6 34.
Rxh6+ Kg7 35. Rh2 Rb8 {0-1 Salo,H-Manninen,M/Helsinki 1992/ (61)}) 27... Rf8
28. Ne4 Nc4 29. Nxg5 Nxe5 {1/2-1/2 Herraiz Hidalgo,H-Fernandez Garcia,J/Burgos
2003/ (43)}) 19... Rxc3 20. Bxg4 (20. bxc3 Bxe2 21. Kxe2 Na4 $19) 20... Rb3 (
20... Rc4 21. Be6+ Kh8 22. e5 Qe8 23. Qf5 g4 $17) 21. Be6+ Kh8 (21... Kf8 $2
22. e5 Bxe5 23. Qg6 $18) 22. e5 Qe8 23. Qf5 Nc4 $1 {Svidler correctly attacks
e5 pawn, the direct 23...Rxb2? could have had serious consequences.} (23...
Rxb2 $2 24. Qxg5 Qf8 25. Bf5 $1 e6 26. dxe6 Qxb4+ 27. Kf1 Qb5+ 28. Kg1 $18) 24.
Qxg5 Qf8 25. d6 (25. Bf5 Nxe5 $19) 25... Rxb2 (25... exd6 26. Bxc4 Rxb2 27. Rd2
Rb1+ 28. Rd1 Rxb4 $15) 26. Bf5 e6 (26... Nxe5 $2 27. dxe7 Nd3+ 28. Rxd3 Re8 29.
Re3 $18) 27. dxc7 $1 {Most likely this idea belongs to the white preparation.
Bauer will land with his rook on d8, so black must be content with equality.}
exf5 (27... Qxb4+ 28. Kf1 Nd2+ 29. Kg1 exf5 30. Rxh6+ Bxh6 (30... Kg8 31. Rd6
$18) 31. Qxh6+ Kg8 32. Qg6+ Kf8 33. Qf6+ Kg8 $11) 28. Rd8 Rb1+ 29. Ke2 Rb2+ (
29... Rxh1 30. Rxa8 Qxa8 31. Qd8+ Qxd8 32. cxd8=Q+ Kh7 33. e6 $18) 30. Ke1 (30.
Kf3 $2 Nxe5+ 31. Ke3 (31. Kf4 Ng4 $19) 31... Ng4+ 32. Kd3 Nxf2+ 33. Ke3 Ng4+
34. Kd3 Rxb4 $19) (30. Kd1 Rb1+ 31. Kc2 Rxh1 32. Rxa8 Qxa8 33. Qd8+ Qxd8 34.
cxd8=Q+ Kh7 35. e6 Rf1 $11) 30... Rb1+ 31. Ke2 Rb2+ 1/2-1/2

[Event "RUS-Cup03 Geller Memorial"]
[Site "Moscow"]
[Date "1999.02.08"]
[Round "7"]
[White "Rustemov, Alexander"]
[Black "Polovodin, Igor A"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2539"]
[BlackElo "2468"]
[Annotator "Ftacnik,L"]
[PlyCount "111"]
[EventDate "1999.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 070"]
[Source "ChessBase"]
[SourceDate "1999.06.08"]
[SourceVersion "1"]
[SourceVersionDate "1999.06.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
e4 Na6 (8... b5 $5) 9. e5 (9. Qb3 c5 10. d5 Qb6 (10... e6 11. Be2 exd5 12. exd5
b5 13. O-O c4 14. Qd1 Nc5 15. Be3 Nfe4 16. Nd4 Nxc3 17. bxc3 Ne4 18. Qc2 Re8
19. Bf3 Nd6 {0-1 Llorens,M-Sanguinetti,R/ARG-ESP radio m 1948/ (37)}) 11. Be2
e6 12. Qxb6 axb6 13. O-O exd5 14. exd5 Rfe8 15. Bd2 b5 16. Bxb5 Bxb5 17. Nxb5
Nxd5 18. Nc3 Nab4 19. a4 Nb6 20. b3 Rad8 21. Rae1 {1-0 Friedmann,O-Prins,L/
London 1946/ (36)}) (9. Be2 c5 (9... Rb8 10. Bf4 b5 11. Qb3 Rb6 12. O-O c5 13.
dxc5 Nxc5 14. Qb4 Ne6 15. Be3 Rb7 16. e5 Ne8 17. Rfd1 N8c7 18. Qg4 Rb8 19. Bxa7
Ra8 20. Be3 {1-0 Martin,P-Bolbochan,J/Mar del Plata 1950/ (45)}) 10. dxc5 Rc8
11. Be3 Nxc5 12. Bxc5 b6 13. Bxe7 Qxe7 14. Qd3 Bc6 15. Nd2 Bh6 16. Rd1 Rfd8 17.
Qh3 Kg7 18. Bd3 Nh5 19. Ne2 Qb4 20. a3 Qxb2 21. Nc4 Qf6 {0-1 Kantor,A-La Flair,
R/Nassau 1988/ (28)}) 9... Ng4 (9... Be6 10. exf6 Bxc4 11. fxg7 Kxg7 (11...
Bxf1 12. gxf8=Q+ Kxf8 13. Bh6+ Kg8 14. Rxf1 Nb4 15. O-O-O Qd7 16. a3 a5 17.
Rfe1 f6 18. h4 Kf7 19. Re2 {1-0 Gulko,B-Vaganian,R/Erevan 1976/ (42)}) 12. Bxc4
Nb4 13. Bb3 c5 (13... Nd3+ 14. Ke2 Nxc1+ 15. Raxc1 e6 (15... c6 16. Rhe1 e6 17.
Kf1 Rc8 18. Ne4 Rc7 19. Rc3 Re7 20. g3 {1/2-1/2 Kozlov,V-Mishuchkov,N/
Daugavpils 1978/ (46)}) 16. d5 exd5 17. Nxd5 c6 18. Ne3 Qf6 19. Rc2 Rad8 20. h4
Rfe8 21. g4 {1/2-1/2 Cordes,H-Lau,R/Hamburg 1984/ (37)}) 14. dxc5 Nd3+ 15. Ke2
Nxc5 16. Rd1 Qa5 17. Bc2 Qa6+ 18. Ke1 Rac8 19. Be3 Qe6 20. Rd5 b6 21. Rad1 {
1-0 Bertok,M-Nikolic,E/Vinkovci 1968/ (32)}) (9... Ne8 10. Be2 (10. Qb3 Rb8 (
10... c5 11. d5 Nec7 12. Be2 Bf5 13. a3 Rb8 14. O-O b5 15. Qd1 Qd7 16. d6 exd6
17. exd6 Ne6 18. a4 Nb4 19. Bxb5 Qb7 20. Nh4 Bc2 21. Qg4 Rbd8 22. Be3 {1/2-1/2
Sherbakov,R-Voitsekhovsky,S/Kuibishev 1990/ (22)}) 11. Be3 c5 12. dxc5 Nec7 13.
Be2 Ne6 14. Qa3 Bc6 15. Rd1 Qc8 16. Nd5 Re8 17. b4 Nac7 18. Nxc7 Nxc7 19. Qb3
a6 20. a4 e6 21. O-O Nd5 {1/2-1/2 Misojcic,M-Zahariev,Z/Belgrade 1990/ (53)})
10... c6 11. O-O Nec7 12. Be3 b5 13. Qd3 f6 14. Rac1 Be6 15. Qd2 Qd7 16. Bh6
Rad8 17. Bxg7 Kxg7 18. b3 b4 19. Na4 Bd5 20. Qe3 Qc8 21. Bc4 Ne6 22. Bxd5 Rxd5
{0-1 Furman,S-Ribli,Z/Ljubljana 1975/ (62)}) 10. h3 Nh6 11. Bf4 {White plays
with great ambition of controling the center. Despite two knights at the rear
of the board black has fair chances to capitalize on his development advantage.
} (11. Be2 c5 12. d5 Qb6 13. O-O Nf5 14. Bf4 Nd4 15. Rfd1 Qxb2 16. Nxd4 cxd4
17. Qxd4 Rfc8 18. Bd2 Bf5 19. f4 Nb4 20. Rab1 Bxb1 21. Rxb1 Nc2 22. Qe4 Qa3 23.
Qxc2 {1-0 Zarubin,O-Tseitlin,M/Severodonetsk 1982/ (40)}) 11... c5 12. dxc5 Qa5
(12... Nf5 13. Rd1 Qc8 14. Rxd7 Qxd7 15. c6 $1 bxc6 16. Qxa6 $18) 13. Rd1 Rfd8
$2 (13... Be6 $1 14. Qb5 (14. Qa4 Qxc5 $13) 14... Qxb5 15. Bxb5 Nxc5 16. Nd4
$14) 14. Rxd7 $1 Rxd7 15. c6 Rc7 {The real point of white's combination would
come to life after the tougher move 15...Rc8.} (15... Rc8 16. cxd7 $3 (16. Bxh6
$6 Bxh6 17. Qh4 Rxc6 18. Qxh6 Rxc3 19. bxc3 Qxc3+ 20. Nd2 Qxe5+ 21. Qe3 Qa1+
22. Ke2 Qxa2 $15) 16... Rxc4 17. Bxc4 Nb4 (17... Qd8 18. e6 Nc5 19. Ng5 Kh8 20.
O-O fxe6 21. Rd1 $18) 18. O-O Nc6 19. e6 fxe6 20. Bxe6+ Kf8 21. Rd1 $18) 16.
cxb7 Rd8 (16... Rxc4 $4 17. bxa8=Q+ Bf8 18. Bxh6 $18) 17. Qxa6 Qb4 18. Bd2 (18.
Bc1 $1 Rxc3 19. bxc3 Qxc3+ 20. Bd2 Qa1+ 21. Ke2 $18) 18... Qxb2 19. Nd1 (19.
Bc4 Qa1+ 20. Ke2 Qxh1 21. Qxa7 Nf5 22. b8=Q Ng3+ 23. fxg3 Qxg2+ 24. Kd1 Qxf3+
25. Kc1 $18) 19... Qxb7 20. Qxb7 Rxb7 21. Bc4 {Two pieces for the rook without
great weaknesses turn the winning into purely technical task.} Nf5 (21... Rb1
22. Ke2 Nf5 23. e6 fxe6 24. Bxe6+ Kf8 25. Re1 $18) 22. Bb3 e6 23. Ke2 Bf8 24.
Nb2 Bb4 25. Bg5 Be7 26. Bf4 (26. Bxe7 Nxe7 27. Nd3 $16) 26... Rb4 27. Be3 Nxe3
28. fxe3 $1 Rb5 29. Nd3 (29. Rc1 Ba3 30. Rc2 $16) 29... Ba3 30. Rf1 h6 31. Nd4
Rb6 32. Rf4 $1 Be7 33. Nf3 a5 (33... Kg7 34. Ra4 Rd7 35. Nd4 $18) 34. Ra4 Bb4
35. Nd4 (35. Nxb4 $5 axb4 36. Nd4 $16) 35... Rc8 36. Kf3 (36. Nxb4 axb4 37. Nc2
Rcb8 38. Kd3 $16) 36... Bd2 37. Nb2 Bc3 38. Nd3 (38. Nc4 Rb4 39. Nd6 Rc5 40.
Ke4 $18) 38... Bd2 39. Ke4 Kf8 40. g3 Bc3 41. Nc2 Rc7 42. Na3 $1 Rbc6 (42...
Ke7 43. Nb1 Bb4 44. Nxb4 Rxb4+ 45. Rxb4 axb4 46. Nd2 $18) 43. Nb5 Rd7 44. Nd4 (
44. Nxc3 Rxc3 45. Nb2 Rc5 46. Rc4 Rxc4+ 47. Nxc4 Rd5 48. a4 Ke7 49. Nd6 Rc5 50.
Nb7 $18) 44... Rcc7 (44... Rb6 45. Rc4 $18) 45. Bxe6 $1 {This small
combination transposes into excellent endgame with a spare pawn and great
positional advantage.} Rxd4+ (45... Bxd4 46. Bxd7 $18) (45... fxe6 46. Nxe6+
Ke7 47. Nxc7 Rxc7 48. Nf4 $18) 46. exd4 fxe6 47. Nc5 Ke7 48. Rc4 Be1 (48... Bb4
49. Kd3 $16) 49. Rc1 Bd2 50. Rc2 Bb4 51. Kd3 Rc8 (51... Bxc5 52. Rxc5 Rxc5 53.
dxc5 Kd7 54. Kc4 Kc6 55. a4 $18) 52. Ne4 Rxc2 53. Kxc2 Kd7 54. Kb3 Kc6 55. Kc4
h5 56. Nc5 (56. Nc5 Bxc5 57. dxc5 g5 58. a4 g4 59. h4 $18) 1-0

[Event "EU-chT (Men) 14th"]
[Site "Plovdiv"]
[Date "2003.10.12"]
[Round "2.4"]
[White "Banikas, Hristos"]
[Black "Eljanov, Pavel"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2522"]
[BlackElo "2597"]
[Annotator "Ftacnik,L"]
[PlyCount "76"]
[EventDate "2003.10.10"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 098"]
[Source "ChessBase"]
[SourceDate "2004.02.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.02.03"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "UKR"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 c5 7. Rc1 Nxc3 8.
bxc3 O-O 9. e3 Be6 (9... cxd4 10. cxd4 Bg4 11. Qd2 Bxf3 12. gxf3 Qd5 13. e4 Qd6
14. Be3 Nc6 15. d5 Ne5 16. Be2 Rac8 17. O-O Qd7 18. Kg2 b5 19. Qb4 a6 20. h3 f5
{0-1 Bogdanov,O-Ruck,R/Oberwart 2003/ (91)}) 10. Qa4 (10. Qd2 Nc6 11. Bd3 Qa5
12. Rb1 $13) 10... Nc6 11. Be2 (11. Bd3 Qd7 12. Qa3 $11) 11... Rc8 12. O-O h6
13. Bh4 (13. Bf4 Qa5 14. Qxa5 Nxa5 15. a4 $11) 13... g5 14. Bg3 Qa5 $1 {
With exact play black has managed to equalize quite easily.} 15. Qxa5 (15. Qd1
Qxa2 16. Rb1 b6 $15) 15... Nxa5 16. h4 (16. a4 Bc4 17. Rfe1 Bxe2 18. Rxe2 Rfd8
19. Rb1 b6 $11) 16... cxd4 17. cxd4 (17. exd4 $5 g4 18. Ne5 h5 19. Nd3 $11)
17... Bxa2 18. Ra1 (18. hxg5 hxg5 19. Rxc8 Rxc8 20. Nxg5 Nb3 21. Rd1 Nc1 22.
Bg4 Rc2 23. Bf5 Ne2+ 24. Kh2 Rb2 $15) 18... Rc2 19. Bd3 $6 (19. Bd1 $5 Rb2 20.
hxg5 hxg5 21. Nxg5 Nc4 (21... b5 22. f3 Nc4 23. Rf2 b4 24. Rxb2 Nxb2 25. Bc2 b3
26. Bh7+ Kh8 27. Bb1 $16) 22. Re1 Nd2 23. Nf3 Rc8 $11) 19... Rb2 20. hxg5 hxg5
21. Nxg5 Nb3 $1 {[%mdl 32] Eljanov shows a very intersting approach, black
queenside pawns can now run towards the queening squares.} (21... Rd8 22. Bb1
Bxb1 23. Rfxb1 Rxb1+ 24. Rxb1 Rc8 25. Kf1 $11) 22. Rad1 a5 23. Ne4 (23. f3 a4
24. Rf2 Rxf2 25. Kxf2 Rc8 $15) 23... Rc8 24. Bh4 (24. f3 b5 25. Bxb5 Nxd4 26.
Bd7 Ne2+ 27. Kh2 Nxg3 $17) 24... Kf8 25. f4 a4 26. f5 (26. Ng3 a3 27. Nf5 f6
$17) 26... Bh6 27. f6 (27. Ng5 f6 28. Ne6+ Kf7 29. Bf2 a3 $17) 27... exf6 (
27... Bxe3+ 28. Kh2 e6 $19) 28. Nd6 (28. Rfe1 Nc1 29. Nc5 Nxd3 30. Nxd3 Rb5 $17
) 28... Bxe3+ 29. Kh1 Rc1 $2 (29... Rc6 $1 30. Nf5 Bg5 $17) 30. Nc4 $2 {
Both players have missed a golden opportunity for white to lash out into
dangerous counterattack.} (30. Rde1 $1 Rxe1 31. Rxe1 Bg5 32. Re8+ Kg7 33. Nf5+
Kg6 34. Rg8+ Kh5 35. Bxg5 fxg5 36. Ne3 $11) 30... Rxc4 $1 31. Bxc4 Nd2 32. Bxa2
(32. Rxd2 Bxd2 33. Bxa2 Rxa2 34. Rb1 Bc3 $1 35. Rxb7 (35. Bxf6 Ra1 $19) 35...
Bxd4 $19) 32... Nxf1 33. Bd5 (33. Rxf1 Rxa2 34. Bxf6 a3 35. Rf5 Rf2 36. Rxf2
Bxf2 37. d5 b5 $19) 33... Rb5 34. Bf3 (34. Rxf1 Rxd5 35. Rxf6 a3 $19) 34... Nd2
35. Be2 (35. d5 a3 36. d6 a2 37. d7 Bb6 $19) 35... Rd5 36. Bxf6 (36. g4 f5 37.
gxf5 Rxd4 38. Bf6 Rd5 39. Bc3 Ke7 $19) 36... Ne4 37. Bh4 (37. Be5 Nf2+ $19)
37... Nc3 38. Bc4 (38. Rd3 Rxd4 39. Bf6 Rxd3 40. Bxd3 Nd1 $19) 38... Rh5 0-1

[Event "Budapest FS06 GM"]
[Site "Budapest"]
[Date "1995.??.??"]
[Round "3"]
[White "Horvath, Jozsef"]
[Black "Csom, Istvan"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2515"]
[BlackElo "2455"]
[Annotator "Ftacnik,L"]
[PlyCount "61"]
[EventDate "1995.06.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[EventCategory "9"]
[SourceTitle "CBM 049"]
[Source "ChessBase"]
[SourceDate "1995.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.12.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. cxd5 Nxd5 6. e4 Nb6 7. h3 Bg7 8. Be3
Be6 $6 (8... O-O 9. Be2) 9. Ng5 Bc8 10. Qb3 O-O (10... e6 $6 11. Rd1 $16) 11.
Rd1 Na6 12. Be2 h6 13. Nf3 Be6 (13... Kh7 14. O-O f5 $14) 14. d5 cxd5 15. exd5
Bd7 (15... Bxc3+ 16. bxc3 Nxd5 17. Qxb7 Nac7 18. Bxh6 $16) 16. O-O Qb8 17. Nd4
Nc8 (17... Nc5 18. Qa3 Rc8 19. Ndb5 a6 20. Na7 $1 Rxa7 21. Bxc5 $16) 18. Ne4
Bf5 $6 (18... Nd6 19. Bf4 Rc8 20. Nxd6 exd6 21. Qg3 Be5 22. Nf3 $1 Bxf4 23.
Qxf4 $16) 19. Nxf5 gxf5 20. Nc3 (20. Ng3 f4 21. Bxa6 bxa6 22. Qxb8 Rxb8 23.
Bxf4 Rxb2 24. Nf5 Rxa2 $10) 20... Nd6 21. Qa4 Qd8 (21... Nc7 22. Qh4) (21...
Qc8 22. Qh4 Re8 23. Bxh6 $16) 22. Bxa6 bxa6 23. Qxa6 Qc8 24. Qe2 (24. Qxc8
Rfxc8 25. Bd4 Rab8 $132) 24... Qc4 25. Rfe1 Rfc8 (25... Qxe2 26. Rxe2 Nc4 27.
Bd4 $16) 26. Qh5 Kh7 (26... f4 27. Bc1 Rc7 28. Qg4 $16) (26... Bxc3 27. bxc3
Qxa2 28. Bxh6 $18) 27. Bc1 Rc7 28. Re3 Qa6 (28... f4 29. Rf3 Rb8 30. Rxf4 Qa6
31. Rh4 $18) 29. Rde1 Qb7 30. Rg3 Rg8 (30... Rac8 31. Bxh6 Bxh6 32. Re6 $1 fxe6
33. Qg6+ Kh8 34. Qxh6#) 31. Re6 $1 (31. Re6 fxe6 32. Qg6+ Kh8 33. Bxh6 Ne8 34.
Qh5 $1 $18) 1-0

[Event "EU-chT (Men) 14th"]
[Site "Plovdiv"]
[Date "2003.10.12"]
[Round "2.2"]
[White "Pelletier, Yannick"]
[Black "Mamedyarov, Shakhriyar"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2604"]
[BlackElo "2595"]
[Annotator "Ftacnik,L"]
[PlyCount "52"]
[EventDate "2003.10.10"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 098"]
[Source "ChessBase"]
[SourceDate "2004.02.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.02.03"]
[SourceQuality "1"]
[WhiteTeam "Switzerland"]
[BlackTeam "Azerbaijan"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "AZE"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 Be6 8.
Qc2 Nc6 9. Rd1 h6 10. Bh4 O-O 11. e3 Nb4 12. Qb1 Bf5 13. e4 Bg4 14. d5 f5 15.
a3 g5 (15... fxe4 16. Qxe4 Bxf3 17. gxf3 g5 18. axb4 gxh4 19. Rg1 Qd6 20. Bd3
Rf7 21. Rg6 Rf6 22. Rg4 {1-0 Sadler,M-Gurevich,I/Hastings 1992/ (30)}) 16. axb4
$6 {It is much more difficult for black to find equality after the standard
move 16.Bg3. Black's pawn structure will now be far from perfect, but the same
goes for white pawns.} (16. Bg3 f4 17. axb4 fxg3 18. hxg3 Rxf3 19. gxf3 Bxf3
20. Rh2 Bxd1 (20... Nd7 21. Be2 Ne5 22. Qc2 Qd6 23. Kf1 Rf8 24. Nb5 Qf6 {
0-1 Furman,S-Savon,V/USSR/1970/ (47)}) 21. Qxd1 Qd6 (21... a5 22. bxa5 Rxa5 23.
Bh3 Nc4 24. Be6+ Kh8 25. Qh5 Qf8 26. Qxg5 Nxb2 27. Ke2 Qf6 {1/2-1/2 Tisdall,
J-Jansa,V/Aarhus/1983 (35)}) 22. Bh3 Rf8 23. Be6+ Kh8 24. Qh5 Qe5 25. Qg6 Qf6
26. Qxf6 Rxf6 27. e5 Rf8 28. Ne4 Nc4 29. Nxg5 Nxe5 {1/2-1/2 Herraiz Hidalgo,
H-Fernandez Garcia,J/Burgos 2003/ (43)}) (16. Bxg5 hxg5 17. axb4 Qd6 18. Be2
Bxf3 19. gxf3 Qxb4 $11) 16... gxh4 17. Be2 $2 (17. h3 Bxf3 (17... Bh5 18. Be2
Qd6 19. Nxh4 Bxe2 20. Kxe2 fxe4 $15) 18. gxf3 Qd6 19. Rg1 Kh8 $11) 17... Qd6
18. Nd4 (18. h3 Bxf3 19. Bxf3 Qxb4 20. O-O Nc4 $15) 18... Qxb4 $1 {It is
obvious, that black pieces enjoy a perfect ride and Pelletier struggles to
hold his central pieces.} (18... Bxe2 19. Ndxe2 h3 (19... Qxb4 20. exf5 h3 21.
g3 $11) 20. gxh3 Qxb4 21. Rg1 $11) 19. Bxg4 (19. Ne6 Bxc3+ 20. bxc3 Qxc3+ 21.
Rd2 Rf6 $17) 19... fxg4 (19... Bxd4 20. Bxf5 Bxc3+ 21. bxc3 Qxc3+ 22. Ke2 c6
$11) 20. Ne6 (20. Nf5 Bxc3+ 21. bxc3 Qxc3+ 22. Kf1 h3 $17) 20... Bxc3+ 21. bxc3
Qxc3+ 22. Ke2 Rf6 (22... Rf7 23. Qd3 Na4 24. f4 c5 $17) 23. h3 (23. Rc1 Qe5 24.
Nxc7 Rc8 25. Nb5 Rcf8 $19) 23... c6 $1 {White is obviously ill prepared for
the opening of the position.} (23... g3 24. f4 c6 25. Rc1 Qa5 26. Qb3 cxd5 27.
Ra1 Qxa1 28. Rxa1 Rxe6 29. e5 $17) 24. Nd4 (24. hxg4 Qc4+ 25. Qd3 cxd5 26. Qxc4
dxc4 27. Nc5 Raf8 28. f3 Rb8 $17) 24... Raf8 25. f3 (25. Nf5 cxd5 (25... g3 26.
Nxe7+ Kh8 27. Nf5 Nxd5 28. Kf1 Ne7 $19) 26. Rc1 Qe5 27. hxg4 e6 28. Ne7+ Kf7
$19) 25... gxf3+ 26. gxf3 Rxf3 (26... Rxf3 27. Rhg1+ Kh8 $19) 0-1

[Event "Moscow"]
[Site "Moscow"]
[Date "1975.??.??"]
[Round "?"]
[White "Kholmov, Ratmir D"]
[Black "Hort, Vlastimil"]
[Result "1-0"]
[ECO "D90"]
[Annotator "Gagarin,V"]
[PlyCount "119"]
[EventDate "1975.10.14"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "URS"]
[EventCategory "12"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 g6 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 (7. Bg5
h6 (7... O-O 8. Rd1 $14) (7... Be6 8. Qc2 Nc6 9. Rd1 Nb4 10. Qb1 f5 $5 $13) (
7... a5 $5) 8. Bh4 Be6 9. Qc2 Nc6 (9... O-O 10. e4 Bxd4 11. Nxd4 Qxd4 12. Bxe7
Re8 13. Bh4 Nc6 $10 {Gulko,B-Bagirov,V/URS/1973/0,5 (27) Inf 15/22/}) 10. Rd1
Nb4 (10... O-O $2 11. d5 Nb4 12. Qc1 $1 $16 {Jansa/}) 11. Qb1 O-O (11... Bc4
12. Ne5 Ba6 13. a3 Nc6 14. Nxc6 bxc6 15. Ne4 $16) 12. e3 Bf5 13. e4 Bg4 14. d5
g5 $13 {Tisdall,J-Jansa,V/Arhus/1983/0,5 (35) Inf 35/570/}) 7... Be6 (7... Bg4
8. Ng5 $1 O-O 9. h3 Bc8 {Speelman,J-Gurevich,I/Hastings/1992/1:0 (30) Inf 56/
553/} 10. Rd1 $5 $14 {Speelman/}) (7... O-O 8. e3 (8. e4 $6 Bg4 9. Ne5 Bxe5 $1
10. dxe5 Nc6 11. Rc1 Qd4 $15 {Adamski,J-Jansa,V/POL/1971/0:1 (40) Inf 11/541/})
(8. Rd1 $5) 8... a5 (8... Be6 9. Qc2 Nc6 10. Be2 Nb4 11. Qc1 Bc4 (11... c5 $5)
12. O-O Nd3 (12... Bxe2 13. Nxe2 Rc8 14. Rd1 $14 {Trapl,J-Jansa,V/Namestovo/
1987/1:0 (34)/}) 13. Bxd3 Bxd3 14. Rd1 $14 {Denker,A-Kraidman,Y/ISR/1974/0:1 
(47) Inf 18/616/}) 9. Be2 (9. a4 Nc6 $13) 9... a4 10. Qc2 Nc6 11. O-O {Popov,
L-Radev,N/BUL(ch)/1973/1:0 (31) Inf 16/604/} a3 12. b3 Nb4 $13 {Minev/}) 8. Qc2
Nc6 (8... Bc4 9. Rd1 Nc6 10. Qc1 Nd5 11. Be5 Nf6 12. b3 Ba6 13. Na4 O-O 14. Nc5
$16 {Benjamin,J-Gutman,L/Hastings/1986/1:0 (48)/}) 9. e3 (9. Rd1 Nb4 10. Qb1
O-O 11. e4 Bg4 12. a3 Nc6 13. d5 Bxf3 14. gxf3 Nd4 15. Bg2 e5 $10 {Gipslis/})
9... Nb4 (9... O-O 10. a3 $5 Na5 11. b4 Nac4 12. Be2 c6 13. O-O a5 14. Rfd1 $14
{Alatortsev,V-Shaitar,Y/Moscow-Prague/1946/1:0 (46)/}) 10. Qd1 O-O 11. a3 (11.
Be2 $6 c5 12. O-O Rc8 13. Be5 (13. a3 N4d5 $15 {Gausel,E-Jansa,V/Oslo/1991/0,5
(29)/}) 13... Bxe5 14. Nxe5 cxd4 15. exd4 Nc6 $15 {Padevsky,N-Hort,V/Monaco/
1968/0:1 (73)/}) 11... N4d5 12. Nxd5 Bxd5 (12... Nxd5 $5 13. Be5 Bxe5 14. Nxe5
Qd6 15. Rc1 Rfc8 {/\ c5/} 16. Nd3 $14) 13. Rc1 c6 14. Be2 a5 $10 15. O-O a4 $6
{>< a4/} (15... Nd7 $5 $10 {/\ Qb6,Rfe8,e5/}) 16. Bg3 Nd7 17. Bc4 Qa5 $6 (17...
Bxc4 18. Rxc4 Qa5 $10 {/\ Rfe8,e5/}) (17... Bxf3 $5 18. Qxf3 e6 $10 (18... e5
19. Rfd1 $14)) 18. Bxd5 Qxd5 (18... cxd5 $2 19. Rc7 $16) 19. Qe2 f5 $6 (19...
e5 $2 20. Nxe5 Bxe5 (20... Nxe5 21. Rc5 $16) 21. Bxe5 Nxe5 22. Rc5 $16) (19...
Rfe8 $5 {/\ e5/} 20. e4 $5 Qa5 21. Rfd1 $14) 20. Rfd1 $14 Ra5 21. Ne1 Rb5 $6
22. Nd3 Rb3 23. Rc2 Qf7 24. Qd2 Ra8 25. Qc1 Rb5 26. Rc4 Bf8 27. Qc2 Nb6 28. Rc5
Qb3 29. Qc1 $1 Nd7 30. Rc4 Nb6 31. Rc3 Qf7 32. Nc5 Nd5 33. Rc4 Nb6 34. Rc2 Nd5
35. Be5 $1 Nf6 $2 (35... Bg7 $14) 36. Rc4 $1 $16 {>< a4/} Ne4 (36... Rxb2 $6
37. Qxb2 Qxc4 38. Qxb7 $16) 37. Nxa4 (37. Rxa4 $4 Rxc5 $19) 37... Rd8 $6 {
/\ Re5/} (37... Rxe5 $2 38. dxe5 b5 39. Nb6 $18) (37... Nd6 $5 38. Bxd6 $8 exd6
{/\ d5/} 39. d5 $5 (39. Qc2 Rba5 {/\ d5, /\ b5/} 40. Nb6 R8a6 41. Rb4 Rb5 (
41... d5 $6 42. Ra4 Qc7 43. Rxa5 Rxa5 44. Na4 $18) (41... c5 $6 42. dxc5 dxc5
43. Ra4 Rxa4 44. Nxa4 $16) 42. Nc4 Rxb4 43. axb4 b5 44. Na5 (44. Nd2 d5 $14)
44... c5 $14) 39... c5 $16 (39... cxd5 40. Rc7 $16) (39... Rxd5 40. Rxd5 cxd5
41. Rc7 $16)) 38. Nc5 $18 Nxc5 (38... Rxb2 39. Qxb2 Qxc4 40. Nxb7 Ra8 41. Rc1
$18 Qa4 $140 $2 42. Qa2+) 39. Rxc5 Rxc5 40. Qxc5 Qb3 41. Rd2 Rd5 42. Qc2 Qa2 (
42... Qxc2 $5 43. Rxc2 Ra5 44. Kf1 $18) 43. h4 $1 $40 Rb5 44. h5 e6 45. hxg6
hxg6 46. Qc1 $1 Qb3 47. Rc2 Kf7 (47... Qd3 $5 48. Rc3 Qe4 49. b4 $18) 48. e4 $1
Qd3 (48... fxe4 49. Qf4+ Ke8 50. Qxe4 $18) 49. exf5 exf5 (49... gxf5 50. Rc3
$18) 50. Rc3 {/\ Rh3/} Qe2 51. b4 Bg7 52. Bxg7 (52. Re3 Bh6 $5 $16) 52... Kxg7
53. Rh3 Kf6 54. Qh6 $1 Qe1+ 55. Kh2 Qe7 (55... Qxf2 56. Re3 $1 f4 (56... Rd5
57. Qf8+ Kg5 58. Rg3+ Kf4 59. Rf3+ $18) 57. Rf3 $18) 56. Re3 $1 (56. Qh8+ Qg7
$8) 56... Qd6+ 57. f4 Kf7 (57... Rd5 $5 58. Rg3 $1 (58. Re8 Kf7 $1 $16) 58...
Kf7 59. Qh7+ Kf8 60. Rxg6 Qxf4+ 61. Kh3 Qe3+ 62. g3 $18) 58. Qh7+ Kf8 59. Qh8+
Kf7 60. Qe8+ (60. Qe8+ Kf6 (60... Kg7 61. Re7+ $18) 61. Re5 (61. Qe5+ Qxe5 $8
62. Rxe5 Rb6 63. Ra5 $18) 61... Rb6 62. Kh3 Ra6 63. Kh4 Rxa3 64. g4 $1 {/\ g5/}
fxg4 65. Qh8+ Kf7 66. Kg5 $1 $18 {/\ Qe8/}) 1-0

[Event "Olympiad-43"]
[Site "Batumi"]
[Date "2018.09.30"]
[Round "6.1"]
[White "Duda, Jan Krzysztof"]
[Black "Ivanchuk, Vassily"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2739"]
[BlackElo "2710"]
[Annotator "Ganguly, Surya Sekhar "]
[PlyCount "63"]
[EventDate "2018.09.24"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GEO"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "UKR"]

1. c4 Nf6 2. Nc3 d5 {One can never predict which opening Ivanchuk might play
since he is capable of playing A00 to E99 with either colour. Today he was in
mood for a Grünfeld setup.} 3. cxd5 Nxd5 4. Nf3 g6 5. Qb3 Nb6 6. d4 Bg7 7. Bf4
Be6 8. Qa3 {A very popular anti Grünfeld system} O-O (8... c5 $5 {I came up
with this novelty back in 2009 and since then many games have been played.
However, both 8...0-0 and 8...Nc6 are more popular.}) 9. e3 N8d7 10. Rd1 {
Ivanchuk himself had this position as White against MVL back in the 2010
Olympiad where MVL opted for 10...a5} c6 11. Ng5 Bf5 $146 {A number of top
games reached this position and everyone earlier opted either for Bc4 or Bd5.
Grischuk, Svidler and Sutovsky all seemed to prefer Bd5 here.} 12. e4 Bg4 {
Ivanchuk was playing very fast indicating this line had been checked properly.}
(12... e5 13. dxe5 Bg4 {is another direction}) 13. Be2 {Only here did Ivanchuk
finally start to think} (13. f3 e5 $1 {is the whole point of this bishop dance.
} 14. dxe5 h6 $132) 13... Bxe2 14. Nxe2 Qe8 $2 {Somehow this move doesn't fit
in with the spirit of the position} (14... Nc4 $5 {is more to the point} 15.
Qh3 (15. Qb4 e5) 15... h6 $1 16. Ne6 {does look scary and perhaps bothered
Ivanchuk but Black is active enough to counter-attack immediately.} Qa5+ 17.
Kf1 fxe6 18. Qxe6+ Kh7 19. Qxc4 e5 $132) 15. Qh3 $1 (15. e5 $5) 15... h6 16.
Nf3 h5 (16... g5 17. Bxg5 hxg5 18. Nxg5 Nf6 19. Ng3 {Kills}) 17. e5 {White now
gets more space and Black lacks an immediate counter.} Nd5 18. g4 $1 {The
computer doesn't like this due to Black's brilliant piece sacrifice but in a
practical game this is clearly the best move.} Qc8 $6 (18... N7f6 $3 {
Brilliant resource! It is not obvious why this sac should work. As a matter of
fact Black still remains worse but definitely much better than the game
continuation.} 19. exf6 Nxf4 (19... exf6 $5 20. Be3 (20. Kf1 Qxe2+) 20... Nxe3
21. fxe3 hxg4 22. Qxg4 Qxe3 23. Kf1 {White keeps the advantage}) 20. Nxf4 exf6+
21. Kf1 (21. Ne2 Qe4 $1 22. gxh5 Rae8 23. O-O Qxe2 $132) 21... Qe4 $1 {thanks
to this move Black now gets back the piece.} 22. Nxh5 (22. Qg3 h4 $1) 22...
gxh5 23. Rg1 Rfe8 24. gxh5 Kh8 {White is better but not winning outright.}) 19.
Qh4 $1 {Very precise. White simply gets away from the pin and avoids any queen
exchanging ideas and also renews the threat of gh5} (19. gxh5 Nxe5 {was the
little trap.}) 19... Rd8 (19... N7f6 {would have been more resilient but White
has an ice cool reply here....} 20. h3 (20. exf6 exf6 21. gxh5 g5 22. Bxg5 fxg5
23. Qxg5 {also looked great}) 20... Re8 21. Rg1 {No rush! Black is completely
paralysed and White can slowly make some more useful moves before taking the
piece and opening up the kingside.}) 20. gxh5 Nf8 21. hxg6 {The human way to
continue the attack.} (21. h6 $1 {Often engines overestimate the pawn on h6
but in this particular case it is correct.} Bh8 22. Bd2 {would have been
crushing} Qf5 23. Ng5 Nh7 24. Ng3 Qc8 25. Nf3 {Black is completely stuck and
White can slowly win the game.}) 21... Nxg6 22. Qg3 Qf5 23. Bc1 Kf8 (23... c5
24. Rg1 (24. h4 cxd4 25. h5 d3 $19) 24... cxd4 25. Nexd4 Qe4+ 26. Kf1 $16) 24.
h4 Qh5 25. Qg2 (25. Rg1 $1 Ke8 (25... e6 26. Ng5 $18) 26. Qg4 {[%csl Rg6,Rg7]
Surprising, but wins on the spot!}) 25... Ke8 26. Ng5 Bh6 (26... Qxe2+ 27. Kxe2
Ngf4+ 28. Kf3 Nxg2 29. Kxg2 $18 {Black is still stuck with his horrible
dark-squared bishop and now White even has a strong passed pawn.}) 27. Qf3 {
Pretty much everything wins here. This move keeps things under control but
reduces the advantage to a certain extent.} (27. e6 $1 {would have been more
brutal.} fxe6 (27... Qxe2+ 28. Kxe2 Ndf4+ 29. Bxf4 Nxf4+ 30. Kf3 Nxg2 31. exf7+
$18) (27... f6 28. Ng3 Ngf4 29. Nxh5 Nxg2+ 30. Kf1 $18) 28. Ng3 Ngf4 (28... Qg4
29. f3 $18) 29. Nxh5 Nxg2+ 30. Kf1 $18) 27... Qxf3 28. Nxf3 Bxc1 29. Rxc1 f6
30. Kd2 Kf7 31. Rcg1 (31. h5 Ngf4 32. Nxf4 Nxf4 33. h6 $18) 31... Rh8 {A
blunder in a depressing position} (31... Ngf4 32. Ng3 {Black is apawn down
with no compensation nevertheless White will have to show precise technique to
win the game here.}) 32. e6+ 1-0

[Event "Bayern-chI Bank Hofmann 6th"]
[Site "Bad Wiessee"]
[Date "2002.10.29"]
[Round "4"]
[White "Kalka, Arkadius Georg"]
[Black "Golod, Vitali"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2404"]
[BlackElo "2523"]
[Annotator "Golod,V"]
[PlyCount "118"]
[EventDate "2002.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 {Pretty rare
variant, but I was ready to it. My opponent had only one game in Mega Database
in this opening and exactly in this variant.} Nxc3 $5 {Otherwise black might
have problem with pieces developing.} 7. bxc3 O-O 8. Ba3 {[%cal Ga3f8] After
the game my opponent agreed, that it was not the best place for the bishop.}
Nc6 (8... b6 $5) 9. e3 b6 10. Be2 $5 {Before this move, I played according to
game of Mark Tseitlin:} (10. Rd1 Na5 11. Qc2 c5 12. Be2 Qc7 13. d5 Bg4 14. O-O
Rad8 15. c4 e5 $11 {Van Kooten,L-Tseitlin,M/Groningen,1997(0-1)(73)}) 10... Na5
$5 $146 {Before in all three games black was bringing in his white square
bishop on different fields: "d7","f5" and "b7". All this games you can find in
Mega Database 2002.} 11. Qa4 (11. Qb4 $5 {[%csl Ga3,Gb4,Re7]} c5 12. dxc5 Nc6
$44) 11... Bd7 12. Qd1 {White have decided,that it would be useful to call up
my bishop on ''d7''.} c5 {[%csl Rc3] Now I get convenient game.} 13. O-O Rc8 {
Pretty hasty move.} (13... Qc7 $142 {/\Rad8}) 14. Rc1 Be6 {[%csl Ra2]} 15. Ba6
$1 {Otherwise position of white might become worse.} Rc7 16. Qe2 {I totally
forgot that bishop have freed this strong parking for the queen.} (16. dxc5
$143 Qxd1 17. Rfxd1 Bxa2 $13) 16... Qd7 {[%cal Gd7a4] It was important for me
to call up the white bishop on ''b5''.} 17. Bb5 Qd5 {[%csl Ra2]} 18. c4 Qh5 19.
d5 (19. dxc5 $6 bxc5 {[%cal Ga5b7,Gb7d6]}) 19... Bg4 20. h3 {Maybe it didn't
cost to hurry with this move!} Bxf3 21. Qxf3 Qxf3 22. gxf3 a6 $1 {This move
was impossible if bishop was located on ''a6''.} 23. Ba4 $8 (23. Bxa6 $4 Ra8
24. Bb5 Nb7 $1 $19 {[%csl Ra3] During the game I didn't see this resource,but
was only viewing:} (24... Nxc4 $2 25. Bxc4 Rxa3 $11)) 23... Rb8 {[%cal Gb6b5]}
({Much worse:} 23... Rfc8 {/\Nc4} 24. Rfd1 Nxc4 25. Rxc4 b5 26. Re4 bxa4 27.
Kf1 $13) 24. Rc2 (24. Bd1 $5 Nb7 {/\Nd6 and in case "b5".}) 24... b5 25. Bb3 {
My opponent spent about 35 minutes for this move.He counted next variants:} (
25. Rb1 $2 Rcb7 26. cxb5 axb5 27. Rxc5 bxa4 28. Rxb7 (28. Rbc1 $143 Ra8 29.
Rc8+ (29. d6 Bf6 $19) 29... Rxc8 30. Rxc8+ Bf8 31. d6 Kg7 $19 32. Rc7 $140 Rb1+
) 28... Nxb7 29. Rb5 Bf6 $17 {[%cal Yg8f8,Yf8e8,Ye8d7,Yd7c8]} 30. d6 $2 exd6
31. Bxd6 Rd8 $19) 25... Nxb3 26. axb3 bxc4 $1 (26... a5 $143 27. Rb1 (27. cxb5
$5 Rxb5 28. Rfc1 Rxb3 29. Rxc5 Rxc5 30. Bxc5 {Including moves: Rc1 and a5 is
being useful for white in comparing to the game position.}) 27... b4 28. Bb2 a4
29. bxa4 Ra7 30. Bxg7 Kxg7 31. Ra2 Rba8 32. Rba1 b3 33. Rb2 Rxa4 34. Rxa4 Rxa4
35. Rxb3 Rxc4 $11) 27. Rxc4 ({After:} 27. bxc4 Rb3 $15 {I have two advantages:
o^P in <->a and weak white's pawn "c4".}) 27... Rxb3 28. Rxc5 (28. Bxc5 $2 Rd3
{[%csl Rd5,Rf3]}) 28... Rxc5 29. Bxc5 Kf8 $1 {[%mdl 4096]} (29... Bf6 $6 30. f4
$1 {/\e4-e5}) 30. Rd1 Ke8 31. Bd4 (31. d6 $5 $15) 31... Bxd4 32. Rxd4 a5 (32...
Rb7 $143 33. Kf1) 33. Kg2 $2 $138 (33. Kf1 $142) (33. d6 $5 e6 34. d7+ Kd8 35.
Rd6 Ra3 {[%csl Ya3,Ra5,Rd7][%cal Ya3a5]}) 33... Rb4 $1 34. Rd3 Kd7 35. e4 a4
$17 36. Kg3 (36. e5 $2 f6 {[%csl Rd5,Re5]}) 36... f6 {[%csl Yf6]} 37. Kf4 Kd6
38. Rc3 (38. Ra3 Kc5 {[%cal Yc5b5,Yb5a4,Gb4b3]}) 38... Rb6 39. Ke3 Ra6 $6 ({
I had about 10 minutes and i didn't make the right decision:} 39... Rb3 $1 40.
Kd4 Rxc3 41. Kxc3 Ke5 42. Kb4 Kf4 43. Kxa4 Kxf3 44. Kb5 Kxe4 45. Kc6 f5 46. Kd7
Kxd5 47. Kxe7 Ke4 $19) 40. Ra3 Kc5 41. Kd3 Kb4 42. Ra1 a3 43. Rb1+ Kc5 (43...
Ka4 $4 44. Kc4 a2 $140 45. Rb4+ Ka3 46. Rb3+ Ka4 47. Rb4+ Ka5 48. Rb5+ {
with endless check.}) 44. Rc1+ Kd6 45. Kc2 {[%cal Yc2b1,Yb1a1]} Rb6 $5 ({
Probably was winning immediately:} 45... a2 46. Kb2 $140 (46. Ra1 $143 Ke5 {
[%csl Rf3][%cal Ge5f4]}) 46... a1=Q+ 47. Rxa1 Rxa1 48. Kxa1 Ke5 49. Kb2 Kf4 50.
Kc3 g5 51. Kd4 h5 $1 52. Kc5 Kxf3 53. Kc6 Kxe4 54. Kd7 Kxd5 55. Kxe7 Ke5 $19)
46. Kc3 (46. Ra1 $2 Rb2+ 47. Kd3 (47. Kc3 Rxf2) (47. Kc1 Rb3) 47... a2 $19)
46... g5 $1 {[%csl Ye7,Yf6,Yg5]} 47. Ra1 Ra6 48. Kb3 Ke5 49. Ka2 $1 {To tell
the truth,I didn't consider this move.} ({Loses right away:} 49. Rxa3 Rxa3+ 50.
Kxa3 Kf4 51. Kb4 Kxf3 52. Kc5 Kxe4 53. d6 exd6+ 54. Kxd6 f5 $19 {[%cal Gg5g4]})
49... Kf4 50. Re1 (50. Rc1 $143 Kxf3 51. Rc7 (51. Rc6 Ra7 52. d6 exd6 53. Rxd6
Rf7 $19 {[%csl Re4,Rf2]}) 51... Kxe4 52. Rxe7+ Kxd5 53. Rxh7 Ke4 $19 {[%csl
Rf2][%cal Ge4f3]}) 50... Kxf3 (50... h5 $5 51. Re3 $140 h4 {[%csl Rf2,Rh3,Gh4]
[%cal Ga6a7,Ga7c7,Gc7c2]}) 51. e5 f5 $1 ({I have skipped this trap:} 51... Kxf2
$2 52. exf6 $1 exf6 (52... Kxe1 $4 53. fxe7 Ra8 54. d6 $18 {[%csl Gd6,Ge7]})
53. Re6 Ra7 54. Rxf6+ Kg3 55. Rh6 {with chances for the draw.}) 52. Re3+ Kf4 ({
A much worse:} 52... Kxf2 {in view of:} 53. Rxa3 $132 {[%csl Gd5,Ge5]}) 53. d6
exd6 54. e6 Ra8 55. e7 Re8 56. Kxa3 g4 $19 57. h4 (57. hxg4 $144 fxg4 58. Kb4
h5 {The simplest way to the victory.} 59. Kc4 h4 60. Kd5 h3 61. Kxd6 h2 62. Re1
Kf3 $19) 57... d5 58. Kb4 d4 {[%csl Ye3,Re7,Rf2]} 59. Rd3 $138 (59. Re6 $142
Kf3 60. Kc4 f4 61. Kxd4 Kxf2 62. Re4 f3 63. Rxg4 Rxe7 $19) 59... Rxe7 ({
Also might be followed:} 59... Rxe7 60. Rxd4+ Re4) 0-1

[Event "EU-Cup 19th"]
[Site "Rethymno"]
[Date "2003.10.02"]
[Round "5.5"]
[White "Zvjaginsev, Vadim"]
[Black "Golod, Vitali"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2653"]
[BlackElo "2555"]
[Annotator "Golod,V"]
[PlyCount "84"]
[EventDate "2003.09.28"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 098"]
[Source "ChessBase"]
[SourceDate "2004.02.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.02.03"]
[SourceQuality "1"]
[WhiteTeam "Norilsk Nikel"]
[BlackTeam "Beer Sheva"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "ISR"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 $5 {[%cal Ya1c1]
[%mdl 4] This continuation is the next attempt to bring in a "new word " in
theory of the "Grunfeld". This idea more often was applied on the previous
move.} c5 ({Besides Black has two main alternatives:} 6... h6 $5 7. Bh4 {
[%cal Ya1c1]} (7. Bd2 $5 {[%csl Yd2][%cal Ge2e4,Yd2c3] absolutely not clearly:
than position of the White's bishop on point "h4" is better in comparison with
position on point "d2"?})) ({and} 6... Nxc3 7. bxc3 $140 c5) 7. Rc1 ({Also
once were checked in the preceding games:} 7. e3 $6) ({and} 7. e4 $6) 7... Nc6
({On:} 7... Nxc3 $5 8. bxc3 O-O {you can find four games in Mega DataBase 2003.
}) (7... cxd4 $4 {is refuted by:} 8. Nxd5 {[%csl Gc1,Rc8][%cal Gc1c8]}) 8. Nxd5
({Leads to favourable simplifications for Black:} 8. dxc5 $6 Nxc3 (8... Be6 $1
$36) 9. Qxd8+ Nxd8 (9... Kxd8 $5) 10. bxc3 h6 $11) 8... Qxd5 9. Rxc5 Qxa2 10.
Qc1 $5 {All these moves my contender has made very quickly.From my point of
view,this move is much better,than:} (10. Qd2 $6 h6 $1 11. Bh4 $140 g5 $1 12.
Bg3 g4 {[%csl Rd4]} 13. Ne5 Nxe5 14. Bxe5 Bxe5 15. dxe5 (15. Rxe5 $2 Qb1+ 16.
Qd1 Qxb2 $17) 15... Bf5 $15 {[%cal Ga8d8] Ulko,J-Yandemirov,V/Moscow,1998(0-1)
(30)}) 10... h6 $5 $146 {After long meditation I have not decided on the
following dubious continuation:} (10... O-O 11. e3 Be6 (11... e5 12. dxe5 Be6
13. Bf6 Rfc8 14. Bxg7 Nb4 15. Bf8 Kxf8 16. Nd4 $14 {Kachar,V-Vorobiov,E/Bor,
2000(1/2-1/2)(37)}) 12. Bd3 $14 (12. Bb5 $143 {[%csl Yc6,Re7][%cal Gb5c6,Yc6e7]
} Na5 {[%csl Rc1,Rc5][%cal Ga5b3]})) 11. Bd2 ({I have prepared a small trap:} 
11. Rxc6 $2 {[%csl Ra8,Re8]} Bd7 $1 $36 {[%csl Rc6,Rg5]}) 11... O-O {[%csl Rb2]
It's possible to leave Ph6 without protection.} 12. e3 ({Leads to benefit of
the Black:} 12. Bxh6 $6 Bxh6 13. Qxh6 Qxb2 $36 14. Ng5 $140 $4 (14. e3 $5)
14... Qa1+ 15. Kd2 Qxd4+ 16. Ke1 Qb4+ $1 17. Kd1 Rd8+ {[%csl Rc5,Rd1][%cal
Gb4c5]}) 12... Be6 {[%csl Ye6]} 13. Be2 ({Also it deserves attention:} 13. Bd3)
13... Rac8 14. O-O Nb8 $1 {[%cal Gb7b6] <->c The game of Black corresponds to
the requirements of a position.White can hope only for the minimal advantage.}
15. Bc3 Rxc5 {Differently,White will withdraw the rook from point "c5":} (15...
b6 $143 16. Rxc8 Rxc8 17. Qa1 Qxa1 (17... a6 $6 18. Qxa2 Bxa2 19. Nd2 $1 $14 {
[%csl Ra2,Ra6,Yc4][%cal Gf1a1,Yd2c4,Ye2c4]} (19. Ra1 $6 Bc4 20. Bxc4 Rxc4 $11))
18. Rxa1 a5 {+/=/=}) 16. dxc5 Bxc3 17. Qxc3 Rc8 18. Nd4 Nc6 19. f4 $1 {I at
all did not expect this move,and hoped on:} (19. Nxe6 $143 Qxe6 20. b4 a6 $11 {
[%cal Ge6e5]}) 19... Nxd4 ({Hardly it was better:} 19... b6 $6 {because of:}
20. Nxe6 $1 (20. Nxc6 $143 Rxc6 21. Rd1 {[%csl Rg8]} f6 {[%csl Yg8]} 22. Qd3
$11 (22. Rd8+ $6 Kf7 {[%csl Rc3,Rc5]})) (20. cxb6 $143 Nxd4 21. Qxd4 axb6 22.
Qxb6 {[%cal Yb6b2]} Rc2 {[%csl Rb2,Re2]} 23. Bf3 Qb3 $1 {[%csl Rb2,Re3]} (23...
Qxb2 $2 24. Qd8+ Kg7 25. Qxe7 $14) 24. Qxb3 (24. Qd4 Rxb2 $11) 24... Bxb3 25.
Rb1 Ba2 $11 {[%csl Yb1,Rb2][%cal Gc2b2,Yb1b2]}) 20... Qxe6 21. Rc1 $14 {
[%csl Rc8]}) 20. exd4 Qd5 21. Bf3 ({Leads to equality:} 21. Qe3 $6 Rd8 22. Rd1
{[%cal Ye2f3]} Qb3 $1 $11) 21... Qd7 22. Qe3 Bd5 {Too passively,but reliably.}
23. Be2 Bc6 {[%csl Rd4][%cal Gc8d8] +/=/= I should use a weakness of the Pd4.}
24. Rd1 a5 $5 {[%csl Ga5,Rb2][%cal Ya5b4] I blockade Pb2} (24... Rd8 $5) 25. h3
Rd8 26. Bc4 Qf5 {[%csl Rc4,Rd1,Rg2][%cal Gf5c2] (1/2?)} 27. d5 {After a game
Vadim told me,that he has continued to play because of advice of the captain
of his team.} ({Leads to drawn game:} 27. Qxe7 $6 Re8 28. Qc7 $8 (28. Qd6 $4
Qc2 $19 {[%csl Rc4,Rd1,Rg2]}) 28... Qc2 $1 29. Qxf7+ Kh8 30. d5 (30. Qf6+ Kh7
31. Qf7+ Kh8 $11) 30... Qxd1+ 31. Kh2 Re1 32. dxc6 Rh1+ 33. Kg3 Qe1+ 34. Kf3 (
34. Kg4 Qd1+ 35. Kh4 Qe1+ 36. Kg4 (36. g3 $4 Rxh3+ $1 {[%csl Rh4][%cal Ge1g3]}
37. Kxh3 Qh1+ 38. Kg4 Qh5#) 36... Qd1+ $11) 34... Qd1+ 35. Be2 $140 Rf1+ 36.
Ke3 Qc1+ 37. Kd3 Rxf4 {[%csl Rd3,Yf7,Rh8][%cal Gc1c4,Gc4b4,Yf7c4]} 38. Qe8+ {
[%cal Ye8e5]} Kh7 39. Qe7+ Kg8 $11) 27... e6 ({Can it was necessary to decide
on the more active continuation:} 27... Bxd5 $5 28. Qxe7 Rd7 29. Qe8+ Kh7 30.
Rd4 {+/=/=}) 28. d6 Qc2 {[%csl Rb2,Rc4,Rd1,Rg2]} 29. Qe2 $8 Qf5 {[%csl Rc5,Rf4]
} 30. Qf2 {White have decided to continue the game and to not repeat moves:} (
30. Qe5 $6 Qc2 31. Qe2 Qf5 $11) 30... Bxg2 {My contender didn't see this move,
but the protection was found:} 31. Bxe6 $8 (31. Qxg2 $4 Qxc5+ $19 {[%csl Rc4,
Rg1]}) (31. Kxg2 $2 Qe4+ {[%csl Rc4,Rg2] =/+/-/+}) 31... Qxe6 32. Kxg2 Re8 {
I fairly do not want to move the pawn "b7":} (32... b6 $2 33. cxb6 $16 Rxd6
$140 $2 34. b7 $18) 33. Rd2 Qf5 34. d7 Rd8 35. Qd4 ({Hardly it was much better:
} 35. Qe3 Kf8 36. Qd4 Qe6 {[%csl Rd7]}) 35... Qe6 36. Kh2 $14 g5 $6 $138 {
I do not want to think only about defence and I search a counterplay.} ({
Also dubiously:} 36... Kf8 $6 {[%csl Rd7][%cal Gf8e7]} 37. b4 $1 axb4 $140 38.
Qxb4 {[%csl Rf8][%cal Gc5c6]} Qe7 {[%csl Rc5,Rd7]} 39. Qd4 {+/=/+/-} Qe6 $140
$2 40. Qh8+ $1 Ke7 $140 41. Qb2 {[%csl Rb7,Re6,Re7][%cal Gd2e2,Gb2b7]}) ({
Can be recommended:} 36... Qf5 $5) 37. f5 $4 $138 ({I fairly was afraid of the
following idea:} 37. fxg5 hxg5 38. h4 $1 $36 {[%csl Rg8]} g4 $140 39. Kg3 $16)
37... Qxf5 38. Qd6 ({Now senselessly:} 38. Re2 $4 {in view of:} Qxd7 $19 (38...
Rxd7 $5 39. Re8+ Kh7 40. Rh8+ Kg6 41. Rg8+ Kh5 $19)) (38. Qe3 $143 Kf8 {
[%csl Yf8]}) 38... Kg7 ({Leads to favourable simplifications for White:} 38...
Qf4+ $6 39. Qxf4 gxf4 {[%csl Rd7][%cal Yg8f8,Yf8e7]} 40. Rd6 Kf8 41. Kg2 {
[%csl Rf4,Rh6][%cal Gg2f3] =/=/+}) 39. Kg2 (39. Qd4+ $5 Qf6 40. Qe4 $15 {
[%csl Rb7]}) 39... Qe4+ 40. Kf2 Qf5+ 41. Kg2 $15 Qe4+ $6 ({I at all did not
see, that after:} 41... Qe6 $5 42. Qc7 (42. Qd4+ $5 Kf8 $15) {I can exchange
the queens:} 42... Qc6+ 43. Qxc6 bxc6 44. Rd6 f6 45. Kf3 $15 {_|_}) 42. Kf2
Qf5+ 1/2-1/2

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "2003.08.19"]
[Round "2"]
[White "Taylor, Timothy"]
[Black "Khachiyan, Melikset"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2401"]
[BlackElo "2473"]
[Annotator "Hecht,H"]
[PlyCount "186"]
[EventDate "2003.08.18"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 h6 7. Bh4 c6 8. e3
O-O 9. Bd3 Nd7 10. Nxd5 cxd5 11. O-O Re8 12. Qb3 Qa5 13. Bb5 a6 14. Bxd7 Bxd7
15. Qxb7 Qb5 16. Qxb5 Bxb5 17. Rfc1 g5 18. Bg3 Rec8 19. h4 f6 20. hxg5 hxg5 21.
Bc7 Kf7 22. Nd2 g4 23. Rc5 e5 24. dxe5 fxe5 25. a4 Be8 26. Nb3 Bf8 27. Rcc1 Ke6
28. a5 Bb5 29. Bb6 Bc4 30. Nd2 Bb5 31. Nf1 Bb4 32. Kh2 Bc4 33. Ra4 Bd6 34. e4
Bb3 35. Rxc8 Rxc8 36. exd5+ Bxd5 37. Rxg4 e4+ 38. Ng3 Rc2 39. Rg6+ Kd7 40. Rg7+
Kc6 41. Kh3 Rxb2 42. Nf5 Be6 43. g4 Be5 44. Rg6 Kd7 45. Kh4 Rb5 46. Rh6 Bxf5
47. gxf5 Bc3 48. Rh7+ Kd6 49. Bc7+ Kc6 50. Kg4 e3 51. fxe3 Rb7 52. Rh6+ Kxc7
53. Rxa6 Rb5 54. f6 Kd7 55. Ra7+ Ke6 56. f7 Bb4 57. a6 Ra5 58. Rb7 Be7 59. a7
Kxf7 60. e4 Ke6 61. Rb6+ Bd6 62. Rb7 Ra4 63. Kf3 Bc5 64. Rh7 Bxa7 65. Rh6+ Ke5
66. Rh5+ Kf6 67. Rf5+ Ke6 68. Rb5 Ra3+ 69. Kg4 Bd4 70. Rb8 Bc5 71. Re8+ Be7 72.
Rc8 Bd6 73. Rc6 Rg3+ 74. Kh4 Rg1 75. Kh3 Ke5 76. Rc2 {[#] White, who started
with three pawns for the piece, now loses the last of the Mohicans. And under
unfavourable circumstances at that, since he already has to operate with his
king on the edge of the board. [#] WeiЯ, der ursprьnglich drei Bauern fьr die
Figur besaЯ, verliert nun den letzten Mohikaner auch noch unter ungьnstigen
Umstдnden, weil er frьhzeitig mit einem Randkцnig operieren muss.} Kxe4 {
Theoretically the position should be drawn. Die Position ist theoretisch
freilich remis.} 77. Rg2 Rh1+ 78. Kg4 Bf4 79. Re2+ Be3 80. Kg3 ({Both now and
on the next move Jetzt und auch im nдchsten Zug war} 80. Rg2 {was a good
defence, if not the only one. eine gute Verteidigung, wenn auch nicht die
einzige.}) 80... Rh8 {[#]} 81. Kg2 $2 {Crash no. 1, already Bereits der
Absturz Nr.1} (81. Re1 Rg8+ 82. Kh4 Kf3 (82... Kf5 83. Rf1+ (83. Rxe3 $4 Kf4
$19) 83... Bf4 84. Kh3 Rg3+ 85. Kh2 $1 $11) 83. Rf1+ $11) (81. Rg2 {is the
defence which is easier to handle. ist die einfacher zu handhabende
Verteidigung}) 81... Rg8+ 82. Kh1 Rd8 (82... Kf3 83. Rg2 Rh8+ $19 {would not
be the best wдre nicht optimal}) (82... Rf8 $1 {paradoxically this holds out
longer. paradox, aber am nachhaltigsten!} 83. Kg2 Rf7 84. Rb2 (84. Kh1 Kf3 85.
Rh2 Bf2 86. Rh8 Bg3 87. Kg1 Ra7 88. Rf8+ Bf4 $19) 84... Rg7+ 85. Kh1 Rg1+ 86.
Kh2 Kf3 87. Kh3 Rg8 88. Rb4 Rg7 89. Ra4 Rg1 90. Ra2 Bc1 $19) 83. Rg2 Rd1+ $2 {
Missed chance no.1 Auslasser Nr.1} (83... Rh8+ 84. Rh2 Rf8 $1 $19) 84. Kh2 $11
Bf4+ 85. Kh3 Kf5 86. Rg8 Ke4 87. Rg2 Rd7 88. Rg4 Rd3+ 89. Kg2 $2 {Crash no. 2
Absturz Nr.2} (89. Kh4 Rd1 90. Kh3 Kf3 91. Rg3+ $11) 89... Ke3 $2 {Missed
chance no.2 Auslasser Nr.2} (89... Ra3 $1 90. Rg8 Ra2+ 91. Kf1 Kf3 92. Re8 Rh2
93. Rg8 Bh6 {[%csl Gf8]} 94. Rg6 Be3 95. Rf6+ Bf4 96. Rg6 Rf2+ 97. Ke1 Ra2 $19
{[%csl Gd6]}) 90. Rg8 $2 {Crash no. 3 Absturz Nr.3} (90. Rg6 $1 Rd2+ 91. Kh3 $1
{is OK thanks to Rg6 - pointing out the difference between Rg8? and Rg6! geht
dank Tg6 - hier sieht man den Unterschied zwischen Tg8? und Tg6!}) (90. Kh3 $11
Rd2 91. Rg2 Rd1 92. Rg6 $11) 90... Rd2+ 91. Kh1 Rh2+ 92. Kg1 Kf3 93. Rf8 Rc2
0-1

[Event "Kiev Trudova Ukraina"]
[Site "Kiev"]
[Date "2001.01.25"]
[Round "7"]
[White "Malakhatko, Vadim"]
[Black "Eschenko, Vadim"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2513"]
[BlackElo "2443"]
[Annotator "Hecht,H"]
[PlyCount "109"]
[EventDate "2001.01.19"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "UKR"]
[EventCategory "11"]
[SourceTitle "CBM 082"]
[Source "ChessBase"]
[SourceDate "2001.05.17"]
[SourceVersion "1"]
[SourceVersionDate "2001.05.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3
Ne4 9. Rc1 Be6 10. Nd2 Nxc3 11. Rxc3 Nc6 12. Be2 Rc8 13. O-O Na5 14. Rxc8 Qxc8
15. Qa4 b6 16. b4 Qc3 17. Nb1 Qb2 18. Bg4 Bxg4 19. hxg4 Nc4 20. Qxa7 e6 21. a3
h6 22. g5 h5 23. Bc7 f6 24. gxf6 Rxf6 25. Bf4 g5 26. Bxg5 Rg6 27. Qb8+ Kh7 28.
Qf4 Qc2 29. a4 Kg8 30. a5 bxa5 31. bxa5 e5 32. dxe5 Bxe5 33. Qh4 Qf5 34. Bf4
Bf6 35. Qh2 Nxa5 36. Nd2 h4 37. Rc1 Nc4 38. e4 Qd7 39. exd5 h3 40. g3 Nxd2 41.
Bxd2 Bd4 42. Be1 Qg4 43. Kf1 Qf5 44. Rd1 Bb6 45. Rd2 Ba5 46. Re2 Bxe1 47. Rxe1
Qd3+ 48. Kg1 Qc3 49. Rb1 Rb6 50. Rf1 Rh6 51. g4 Qf3 52. Rc1 Qxg4+ 53. Qg3 Qxg3+
54. fxg3 h2+ 55. Kh1 {[#] Die Spieler lassen uns an dieser Stelle mit dem
Remisschluss allein. machen wir uns an eine Analyse, die zeigen soll, ob das
Remis in Ordnung geht.} (55. Kh1 Rh3 56. d6 (56. Rc3 Kf7 57. Re3 Rh5 58. Rd3
Ke7 59. g4 Rh7 60. d6+ Kd7 61. g5 Rg7 62. Rd5 Rg6 63. Kxh2 Rxd6 $11) (56. Kg2
Rh5 57. d6 Rd5 58. Rc6 Rd2+ 59. Kh1 Kf7 60. Rc7+ Ke6 61. d7 Kf5 $11) 56... Kf7
57. d7 Ke7 58. Rd1 Kd8 (58... Rh8 59. d8=Q+ Rxd8 60. Rxd8 Kxd8 61. Kxh2 Ke7 62.
Kh3 Kf6 63. Kh4 Kg6 64. Kg4 $18) 59. Rd3 Rh7 60. Rd5 Rh3 61. g4 Rh7 62. g5 Rxd7
63. Re5 Re7 64. Rf5 Ke8 65. Kxh2 Rf7 $11 {Mehr als Remis ist in der Tat nicht
herauszuholen.}) 1/2-1/2

[Event "Bad Homburg"]
[Site "Bad Homburg"]
[Date "1998.07.20"]
[Round "4"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2625"]
[BlackElo "2690"]
[Annotator "Kortschnoj,V"]
[PlyCount "65"]
[EventDate "1998.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "13"]
[SourceTitle "CBM 066"]
[Source "ChessBase"]
[SourceDate "1998.09.30"]
[SourceVersion "1"]
[SourceVersionDate "1998.09.30"]
[SourceQuality "1"]

1. d4 {Ftacnik Epishin} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 (5...
Nb6) 6. e4 Nb6 7. Be3 O-O 8. Be2 Nc6 9. Nf3 Bg4 10. d5 (10. e5 $5) 10... Bxf3
11. gxf3 (11. Bxf3 $5 Ne5 12. Be2 c6 13. Qb3 $14) 11... Ne5 (11... Nb8 {Ftacnik
} 12. Qb3 c6 13. Rd1 Qc8 14. h4 h5 15. a4 cxd5 16. a5 Bxc3+ 17. bxc3 Nc4 18.
Bh6 Rd8 19. Rxd5 Rxd5 20. exd5 Nd6 21. c4 Nd7 22. Qc3 Nf5 23. Bc1 Nc5 24. Bb2 {
1-0 Buhr,C-Prosch,C/DLM/1995/ (48)}) (11... Na5 {Ftacnik} 12. Bd4 Qd6 (12... e5
13. Bc5 Re8 14. Bb5 c6 15. dxc6 bxc6 16. Ba6 Bf8 17. Bxf8 Rxf8 18. Qxd8 Raxd8
19. Rd1 Rd4 20. Ke2 {Soppe,G-Malisauskas,V/Erevan olm/1996/1-0 (74)}) 13. Nb5
Qb4+ 14. Qd2 Qxd2+ 15. Kxd2 c6 16. Bxg7 Kxg7 17. dxc6 Nxc6 18. Rhd1 f5 19. Ke1
Rac8 20. Nd4 Kf6 21. a4 a5 22. Nxc6 Rxc6 23. b4 axb4 24. Rdb1 {Shabtai,R-Jansa,
V/Gausdal Int/1995/1-0 (69)}) 12. Qb3 (12. Bd4 {Ftacnik} c5 (12... e6 13. f4
Ned7 14. Bxg7 Kxg7 15. Qd4+ (15. dxe6 fxe6 $17 {><f4}) 15... Qf6 16. O-O-O (16.
e5 Qh4 $17 {><f4}) (16. Qxf6+ Nxf6 17. Bf3 exd5 18. e5 Nfd7 19. Nxd5 Nxd5 20.
Bxd5 c6 21. Bb3 Nc5 $15) 16... exd5 17. Nxd5 (17. exd5 Qxd4 18. Rxd4 Nf6 19.
Bf3 Rad8 20. Rhd1 Rd6 21. Na4 $1 $132) 17... Nxd5 18. exd5 Rad8 19. Bf3 Rfe8
20. Rd3 Nb6 21. Rhd1 Rd6 22. Kc2 c5 23. Qxf6+ Rxf6 {0-1 Tyrtania,M-Lagunow,A/
Berliner Sommer/1994/ (29)}) 13. Bxc5 Rc8 14. Bd4 Rc4 15. Bxc4 Nbxc4 16. Kf1
Qc8 17. Kg2 Nxb2 18. Qd2 Nec4 19. Qc2 Bxd4 20. Rac1 a6 21. a4 Qc5 22. Qb3 Nd3 {
1/2-1/2 Akhsharumova,A-London,D/New York op/1987/}) 12... c6 (12... Qc8 {
Ftacnik} 13. h4 h5 14. O-O-O c6 15. Kb1 Ned7 16. d6 Qe8 17. Rhg1 Kh7 18. f4 Rd8
19. e5 exd6 20. Rxd6 Nc8 21. Rdd1 Ncb6 22. Rg3 Qe7 23. Rdg1 Rg8 24. Ne4 Kh8 25.
Bxh5 Nxe5 26. fxe5 gxh5 27. Ng5 Rgf8 28. Bxb6 {1-0 Boensch,U-Gyorkos,L/
Szekszard op/1989/}) 13. O-O-O (13. f4 Ned7 14. dxc6 bxc6 15. Rd1 e5 $5 (15...
e6 16. h4 $14 (16. h4 {Ftacnik} Qe7 17. h5 Rab8 18. hxg6 hxg6 19. Qc2 Rfd8 20.
Kf1 Nf6 21. Kg2 Rxd1 22. Rxd1 Rd8 23. Qb3 Rxd1 24. Bxd1 {Hausrath,D-Mohandesi,
S/BEL-chT9697/1997/1-0 (54)}))) 13... cxd5 (13... Qc7 {Ftacnik} 14. Kb1 Ned7
15. h4 cxd5 16. Nxd5 Nxd5 17. Rxd5 b6 18. h5 Nc5 19. Qc4 e6 20. Rg5 Rac8 21.
hxg6 hxg6 22. e5 Rfd8 23. Qh4 Nd3 {0-1 Shabtai,R-Honfi,K/Budapest FS09 IM-A/
1994/ (33)}) 14. Nxd5 Nxd5 15. Rxd5 Qc7+ (15... Qc8+ {Ftacnik} 16. Kb1 Qh3 (
16... e6 17. Rc5 Qd7 18. Rd1 Qe7 19. Rdc1 Nc6 $11) 17. Bd4 Qg2 18. Rc1 Qxh2 19.
Qc3 f6 20. Qb3 Nf7 21. Qxb7 Bh6 22. Rd1 Rfe8 23. Rd7 Rab8 24. Qxa7 Bf8 25. Qc7
{1-0 Wilhelmi,C-Honfi,K/Budapest FS03 IM-B 1995/EXT 95 (31)}) 16. Kb1 Nc6 17.
f4 $13 e5 (17... e6 $5) (17... e6 {Epishin} 18. Rc5 (18. Rd3 {Ftacnik} Rfd8 $11
) 18... Rfd8 19. e5 $14) 18. fxe5 (18. f5 {Ftacnik} Nd4 19. Bxd4 exd4 20. fxg6
hxg6 21. h4 Rad8 $11) 18... Bxe5 (18... Nxe5 {Ftacnik} 19. f4 Nc6 20. h4 $14)
19. h4 Rfd8 (19... Rad8 20. Rhd1 Qe7 21. Bc5 Qxh4 22. Bxf8 Qxe4+ 23. Qd3 Qxd3+
24. R5xd3 Rxf8 25. Rd7 $16) (19... Qe7 $1 $13) 20. Bc4 $1 (20. h5 {Ftacnik} Nd4
$1 21. Bxd4 Bxd4 22. hxg6 hxg6 $14) 20... b5 $1 {Ftacnik: Very interesting
move, black understands problems he will be facing with passive defence.
Surprising sacrifice tries to open the b file against white king.} (20... Na5
21. Rxa5 Qxa5 22. Bxf7+ Kh8 23. Bd5 $44 (23. h5 $16 {Epishin}) (23. h5 $16 {
Ftacnik})) (20... Nd4 {Epishin} 21. Bxd4 (21. Qd3 {Ftacnik} Nc6 22. h5 Rxd5 23.
exd5 $16) 21... Bxd4 22. Rd1 (22. h5 $2 Qf4 $11) 22... Rxd5 (22... b5 23. Rxd8+
Rxd8 24. Bd5 Bf6 25. h5 $14) 23. Bxd5 Bf6 24. h5 $14) 21. Rxb5 (21. Rxd8+ $142
$5 Rxd8 22. Bd5 Na5 23. Qa3 Nc4 24. Qxa7 Nxe3 25. Qxc7 Bxc7 26. fxe3 $14) (21.
Bxb5 {Epishin} Nd4 22. Bxd4 Bxd4 $11) (21. Qxb5 $2 {Ftacnik} Rdb8 $1 $19) 21...
Rab8 22. Rc1 $1 (22. f4 Nd4 $1 $44) (22. h5 {Ftacnik} Nd4 $2 23. Bxf7+ $1 Kf8 (
23... Qxf7 24. Qxf7+ Kxf7 25. Rxe5 $18) 24. Bxd4 Bxd4 25. Bc4 $18) 22... a6 23.
Bb6 (23. Rb6 $6 Na5 24. Qb4 Nxc4 25. Rxc4 Rxb6 26. Bxb6 Rd1+ 27. Kc2 Qd7 28.
Rc8+ Qxc8+ 29. Kxd1 Qg4+ $15) 23... Qd7 (23... axb5 $2 {Epishin} 24. Bxc7 bxc4
25. Qxb8 Rxb8 26. Bxb8 $18 (26. Bxb8 {Ftacnik} Nxb8 27. Rxc4 $16)) 24. Rd5 (24.
Bxd8 axb5 25. Bxb5 Qxd8 26. Rxc6 Qxh4 27. f3 Rd8 (27... Qg5 $1 {Epishin} 28. a4
h5 $13) 28. a4 Rd2 29. Rc2 Qh1+ 30. Ka2 Rd1 (30... Rxc2 31. Qxc2 Qxf3 32. Qc6
Kg7 33. Qd5 $14) 31. Qe3 h5 $44) 24... Qg4 {Ftacnik: Svidler has managed to
stop white's attack and gain serious chances in counterplay.} (24... Qe7 $5 25.
Bxd8 Rxb3 26. Bxe7 Rxb2+ $11) 25. f3 (25. Rxd8+ {Epishin} Nxd8 26. f3 Qxh4 27.
a4 (27. Rd1 {Ftacnik} Bf6 28. Bxa6 (28. Rxd8+ Rxd8 29. Bxd8 Qe1+ 30. Kc2 Qf2+
31. Kd1 Bxd8 32. Bxf7+ Kg7 $11) 28... Nc6 $132) 27... Bd4 28. Bxd4 Rxb3 29.
Bxb3 h5 30. Rc8 Kh7 $13) 25... Qxh4 26. Bxd8 (26. Rc5 $2 {Epishin} Rd2 27. Rxc6
(27. Bxf7+ Kg7 28. R5c2 Rxc2 29. Rxc2 Nd4 30. Bxd4 Rxb3 31. Bxe5+ Kxf7 32. axb3
Qh1+ 33. Ka2 Qxf3 $19) 27... Rxb2+ 28. Qxb2 Bxb2 29. Kxb2 Qf2+ (29... Rxb6+ {
Ftacnik} 30. Rxb6 Qf2+ $19)) (26. Rxd8+ {Epishin} Nxd8 (26... Nxd8 {Ftacnik}
27. Rd1)) 26... Rxb3 (26... Nxd8 27. Rxe5 Rxb3 28. Bxb3 $14) 27. Bxb3 (27. Bxh4
{Ftacnik} Rxb2+ 28. Ka1 Rc2+ 29. Kb1 (29. Rxe5 Rxc1+ 30. Kb2 Rxc4 31. Re8+ Kg7
$17) 29... Rb2+ 30. Ka1 $11) 27... Qf2 {Ftacnik: This move in effect forces a
drawing combination, the optional 27...Nxd8 was more fighting, but also more
dangerous.} (27... Nxd8 $5 {Ftacnik} 28. Rxe5 Kg7 29. Rd5 (29. Rec5 h5 30. Rd1
Ne6 31. Bxe6 fxe6 $13) 29... Ne6 30. Rd7 Ng5 31. Rc3 h5 $36) 28. Rxe5 (28. Rc2
{Ftacnik} Qf1+ 29. Rc1 Qe2 30. Rc2 $11) 28... Nxe5 29. Bf6 Nd7 30. Rc8+ Nf8 31.
Be7 Qf1+ 32. Kc2 Qe2+ 33. Kc1 (33. Kc3 $4 Qxf3+ 34. Kd4 Qf2+ 35. Kd5 Qd2+ 36.
Kc6 (36. Kc5 {Ftacnik} Qe3+ 37. Kd5 Qd2+ $11) 36... Qd7+ $19) 1/2-1/2

[Event "YUG-ch 56th"]
[Site "Herceg Novi"]
[Date "2001.04.07"]
[Round "14"]
[White "Tosic, Miroslav"]
[Black "Pavlovic, Milos"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2519"]
[BlackElo "2496"]
[Annotator "Kortschnoj,V"]
[PlyCount "68"]
[EventDate "2001.03.23"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[EventCategory "10"]
[SourceTitle "CBM 083"]
[Source "ChessBase"]
[SourceDate "2001.07.05"]
[SourceVersion "1"]
[SourceVersionDate "2001.07.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bd2 {According to practice of the
very last years, black has no problems in this variation. Still, some players
continue their research.} O-O 6. cxd5 Nxd5 7. e4 Nb6 8. Be3 Bg4 9. Be2 Nc6 10.
d5 Bxf3 11. gxf3 Na5 12. Bd4 Qd6 13. Bxg7 Kxg7 14. Qd2 Qf6 15. f4 c6 16. e5 {
In the famous game Kortchnoi-Kasparov, Wijk an Zee 2000, white played 16.dxc6?
and after Rfd8 could not overcome the difficulties.} (16. dxc6 Rfd8 $1) 16...
Qf5 {After the above-mentioned game commentators believed the move 16.e5} ({
would be met by} 16... Qh4 {with black advantage. Here, however black prefers
another move. In fact, after 16...Qh4 white can play} 17. dxc6 Nxc6 18. Qe3 {
with about equal chances.}) 17. Bd3 Qh5 {17...Qg4 does not change matters too
much after 18.h3.} 18. Be2 Qf5 {It seems white has already a draw...} 19. O-O-O
$6 {... but he is not satisfied with this outcome.} cxd5 20. Rhg1 Nbc4 21. Bxc4
{It is a pity - to give such a bishop,} ({but} 21. Qd4 {would be met by} Nc6
22. Qxd5 Qxf4+ {check...}) 21... Nxc4 22. Qd4 e6 23. Rg5 {After} (23. Rd3 {
black could play} h6 ({or} 23... f6)) 23... Qh3 24. f5 $1 {Obviously white had
in mind this move playing long castle! Unfortunately, it does not help to
break through the black position.} Rac8 25. Kb1 Kg8 26. Ne2 Qf3 27. Ng3 h6 {
This cold-blooded move wins the game.} 28. Rg4 Nxb2 29. Kxb2 Rc4 30. fxg6 Qxg4
31. gxf7+ Rxf7 32. Qd2 Rb4+ 33. Ka1 Rxf2 34. Qd3 Rbb2 0-1

[Event "Zuerich Chess Challenge"]
[Site "Zuerich"]
[Date "2014.01.30"]
[Round "1"]
[White "Nakamura, Hikaru"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2789"]
[BlackElo "2782"]
[Annotator "Krasenkow,M"]
[PlyCount "133"]
[EventDate "2014.01.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "SUI"]
[EventCategory "22"]
[SourceTitle "CBM 159"]
[Source "ChessBase"]
[SourceDate "2014.03.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.03.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 c6 9. e4 {For this line, see Wang Hao - Dominguez in CBM 152 and
Mamedyarov - Giri in CBM 156.} b5 (9... Qa5 $1 {is quite to the point in this
system but Fabiano Caruana proves that the text move is not bad either.}) 10.
Qd3 {This retreat is more logical here than in the 5.Qb3 system, where Black's
bishop is still on c8 and can attack White's queen by means of ...Bc8-a6 
(after ...b5-b4).} c5 $5 {[%mdl 4] A rare but perhaps the most accurate move
order.} (10... Qa5 11. Be2 c5 (11... b4 12. Nd1 c5 13. d5 e6 14. Ne3 exd5 15.
exd5 c4 16. Qxc4 Rc8 17. Qd3 $16 {1-0 (46) Hillarp Persson,T (2528)-Grandelius,
N (2573) Orebro 2013}) 12. O-O b4 13. Nd1 $1 cxd4 14. Nxd4 Rd8 15. Rc1 $1 $36 (
{but not} 15. Ne3 $6 {1/2 (38) Wang,H (2737)-Dominguez Perez,L (2726) Tashkent
2012 CBM 152 [Krasenkow,M]} Nh5 $1 16. Bxh5 Qxh5 {, and now White must fight
for equality.})) 11. dxc5 Na6 12. e5 (12. Be3 Ng4 $132) 12... Nxc5 13. Qe3 Nh5
14. Bg5 Ne6 15. Rd1 (15. Be2 {passes the initiative to Black:} Nxg5 16. Qxg5 {
1-0 (29) Kustar,S (2383)-Liepold,S (2260) Bayern 2000} b4 $5 17. Ne4 Bf5 $36)
15... Qe8 ({Now in the event of} 15... Nxg5 16. Qxg5 b4 17. Nd5 {White keeps
pressure.}) 16. Bh6 $6 $146 {Hardly an improvement.} (16. Be2 f6 17. Bh6 Bxh6
18. Qxh6 Nhf4 19. O-O g5 (19... Bc6 $5) 20. Rfe1 Bc6 21. Bd3 Nxd3 22. Rxd3 Nf4
23. Rd4 Qg6 (23... Bxf3 $5) 24. Qxg6+ hxg6 25. exf6 exf6 26. h4 Bxf3 27. gxf3
b4 28. Ne2 Rad8 29. Rxd8 Nxe2+ 30. Rxe2 Rxd8 {1/2 (30) Jumabayev,R (2548)-Le
Quang,L (2712) Incheon 2013}) (16. Bd3 {is probably the most precise but Black
has no problems in any case:} f6 17. Bh6 Bxh6 18. Qxh6 Bc6 (18... Nhf4 19. O-O
Bc6 20. Nd4 $1) 19. Qe3 Nhf4 20. O-O $13) 16... Bxh6 17. Qxh6 Bc6 18. Qe3 a6 $6
{Too soft.} (18... b4 19. Ne4 Nhg7 {[%cal Rg7f5] looks very strong. White's
king is still uncastled and vulnerable.}) 19. Bd3 Nhf4 20. O-O Nxd3 21. Rxd3
Rd8 (21... b4 {was still possible but White could hold his ground:} 22. Ne2
Bxf3 23. Qxf3 Qb5 24. Rd5 Qa4 25. Nd4 Rac8 (25... Qxa2 26. Nc6) (25... Nxd4 26.
Rxd4 Qxa2 27. Rxb4) 26. a3 bxa3 27. Qxa3 Qxa3 28. bxa3 Nxd4 29. Rxd4 Rfd8 30.
Ra4 {etc.}) 22. Nd4 Nxd4 (22... b4 23. Nce2) 23. Rxd4 Rxd4 24. Qxd4 Qa8 25. f3
Rd8 26. Qc5 Qb7 27. Rd1 Rxd1+ 28. Nxd1 Qd7 29. Ne3 Qd2 30. Qc3 (30. Nf1 $5 {
White, however, correctly judged that Black was unable to break up White's
defence in the B vs N ending.}) 30... Qxc3 31. bxc3 {[%mdl 4096]} f6 (31... Kg7
$142 32. Kf2 f6 33. exf6+ Kxf6 {quickly centralizing the king.}) 32. exf6 exf6
33. Kf2 Kf7 34. Ke2 Ke6 35. Kd3 h5 (35... Ke5 36. Ng4+) 36. Kd4 h4 $6 {There
was no need to allow the invasion of White's king.} (36... Kd6 $142 $11) 37.
Kc5 {It is now Black who must take care in order to get the draw. Fortunately,
even after the loss of the a6 pawn he is out of danger.} Ba8 38. f4 (38. Kb6 $6
h3) 38... g5 39. g3 hxg3 40. hxg3 gxf4 41. gxf4 Be4 42. Kb6 Kd6 43. Kxa6 Kc5
44. a3 Bf3 45. Ka7 Kc6 46. Kb8 Kb6 47. Nf5 Bg4 48. Nd6 Be6 49. Ne4 f5 50. Nd2
Bd5 51. Kc8 Ka5 52. Kc7 Ka4 53. Kb6 (53. Kd6 Bg2 54. Ke5 Kxa3 55. Kxf5 b4 56.
cxb4 Kxb4 {is a theoretical draw, similar to the game continuation.}) 53... Bg2
54. c4 bxc4 55. Nxc4 Bd5 56. Kc5 Bg8 57. Kd4 Kb3 58. Nd6 Kxa3 59. Ke5 Kb4 60.
Kf6 Kc5 61. Nxf5 Bh7 $11 62. Ne7 Bb1 63. Ke5 Bh7 64. Nd5 Kc6 65. Nf6 Bb1 66. f5
Bxf5 67. Kxf5 1/2-1/2

[Event "Tashkent FIDE GP"]
[Site "Tashkent"]
[Date "2014.10.26"]
[Round "5"]
[White "Jakovenko, Dmitrij"]
[Black "Vachier Lagrave, Maxime"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2747"]
[BlackElo "2757"]
[Annotator "Krasenkow,M"]
[PlyCount "93"]
[EventDate "2014.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UZB"]
[EventCategory "21"]
[SourceTitle "CBM 163"]
[Source "ChessBase"]
[SourceDate "2014.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.11"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 Bg4 8.
Bb5+ c6 9. Ng5 O-O 10. Be2 Bxe2 11. Nxe2 {This line, examined in CBM 147 and
CBM 152, has become extremely popular: dozens of games have been played with
it in recent years.} c5 {[%mdl 512] Not a novelty but quite a rare
continuation. Black sacrifices a pawn or two; however, he has yet to prove his
compensation. Here is an overview of the latest games played in the other
lines:} (11... Bxd4 $6 12. Qh3 h5 13. g4 Qd7 (13... Bf6 14. gxh5 Bxg5 15. hxg6
fxg6 16. Bxg5 $16 {1-0 (47) Gajek,R (2247)-Thybo,J (2116) Budva 2013}) 14. Nxd4
Qxd4 15. gxh5 Rd8 16. O-O Qh8 17. Qb3 Qf6 18. Kh1 N8d7 19. hxg6 Qxg6 20. Rg1
$18 {1-0 (29) Ju,W (2526)-Ni,S (2320) Wuxi 2014}) (11... Qd7 12. h4 (12. Be3
Na6 13. O-O e5 14. dxe5 Bxe5 15. f4 Bf6 16. Nf3 Qe6 17. e5 Qxb3 18. axb3 Be7
$11 {1/2 (33) Bacrot,E (2704)-Weber,T (2380) Baden-Baden 2013}) 12... c5 13. h5
$36 gxh5 $6 14. e5 Nc6 $2 15. Qc2 f5 16. exf6 Rxf6 17. Qxh7+ Kf8 18. Qxh5 $18 {
1-0 (40) Sulava,N (2481)-Plenca,J (2345) Bol 2013}) (11... e5 12. dxe5 h6 13.
Nf3 N8d7 14. O-O Nxe5 15. Nxe5 Bxe5 16. f4 Bg7 17. f5 Kh7 18. Qh3 h5 19. g4 $40
{1-0 (40) Barbosa,O (2566)-Wan,Y (2509) Manila 2013}) (11... h6 $5 {needs more
tests:} 12. Nf3 Na6 13. Be3 Qd6 14. O-O Rac8 15. Nf4 Kh7 16. Nd3 f5 17. exf5
Rxf5 18. Nc5 Qd5 19. Nxa6 bxa6 20. Rfc1 Qxb3 21. axb3 a5 22. Rc5 Rxc5 23. dxc5
Nd5 24. Bd4 Rb8 25. Bxg7 Kxg7 26. Nd4 Kf6 27. Rxa5 Nb4 28. Kf1 Rd8 29. Nf3 Rd3
$44 {1/2 (35) Friedel,J (2505)-Molner,M (2522) Saint Louis USA 2014}) (11...
Na6 {is the most common continuation, now deeply developed. Apparently Black
holds on but he must play accurately:} 12. Qh3 (12. O-O $5 h6 13. Nf3 Qd6 14.
a3 c5 15. Rd1 Rac8 16. Be3 Rfd8 17. h4 Qc6 18. dxc5 Nxc5 19. Rxd8+ Rxd8 20.
Bxc5 Qxc5 21. Rc1 Qd6 22. a4 Qd3 $11 {1-0 (35) Blomqvist,E (2448)-Zulfic,F 
(2128) Stockholm 2012}) (12. Be3 Qd6 13. O-O Qb4 (13... e5 14. Rad1 exd4 15.
Bxd4 Qe7 16. Bxg7 Kxg7 17. Qe3 h6 18. Nf3 f5 19. exf5 Qxe3 20. fxe3 Rxf5 21.
Rd6 $1 $36 {1-0 (30) Bai,J (2419)-Lozhnikov,V (2339) Kocaeli 2013}) 14. Qc2 e5
$1 15. Rad1 (15. Nf3 Qc4 16. Rfc1 Qxc2 17. Rxc2 exd4 18. Bxd4 Rfe8 19. Bxg7
Kxg7 20. Ng3 Nb4 21. Rc3 Rad8 $36 {1/2 (66) Pogromsky,M (2411)-Lozhnikov,V 
(2317) Nizhny Tagil 2013}) 15... Qc4 16. Qd2 Qxa2 17. dxe5 Bxe5 18. Bd4 Bxd4
19. Nxd4 Rae8 $13 {1/2 (25) Frendzas,P (2392)-Pascual Perez,N (2298)
Lechenicher SchachServer 2013}) 12... h6 13. Nf3 Qd7 (13... h5 14. Rg1 (14. g4
hxg4 (14... Qd7 15. Rg1 {- below}) 15. Qxg4 Nd7 16. e5 Nb4 17. O-O Re8 18. e6
Nf8 19. exf7+ Kxf7 20. Nf4 Qd7 21. Ng5+ Kg8 $13 {0-1 (30) Navara,D (2715)
-Hammer,J (2605) Tromso 2013}) (14. Qh4 c5 15. Bg5 Re8 16. e5 Nd5 17. O-O Qb6
18. Nc3 Rad8 19. Nxd5 Rxd5 20. dxc5 {1-0 (48) Ftacnik,L (2543)-Dale,A (2266)
Gold Coast 2013} Nxc5 21. Bxe7 Nd3 $36) 14... Nd7 (14... Qd7 15. g4 $5 Nb4 16.
Qh4 hxg4 17. Rxg4 Rfd8 18. Kf1 $40 {1-0 (28) Lupulescu,C (2634)-Nedilko,V 
(2396) Legnica 2013}) 15. e5 (15. g4 Nf6 16. Ng5 hxg4 17. Rxg4 Qc8 18. f3 Rd8
19. e5 Nxg4 20. fxg4 f6 21. Qh7+ Kf8 22. Qxg6 fxg5 23. e6 Kg8 24. Bxg5 Rd5 25.
Qf7+ Kh8 26. Qh5+ Kg8 27. Qf7+ Kh8 28. Qh5+ Kg8 29. Qf7+ {1/2 (29) Jakovenko,D
(2734)-Sutovsky,E (2671) Loo 2013}) 15... Nb4 16. g4 Nc2+ 17. Kf1 Nxe5 18. Nxe5
Bxe5 19. gxh5 Qc8 (19... Bg7 20. hxg6 fxg6 21. Qb3+ e6 22. Qxc2 Qh4 23. Be3 Rf5
24. Rxg6 Qh7 25. Nf4 Raf8 26. Qe4 Kh8 27. Rg4 {1-0 (27) Rodshtein,M (2671)-Gao
Rui (2529) Helsingor DEN 2014}) 20. Rg4 Qf5 21. dxe5 Rad8 22. hxg6 Rd1+ 23. Kg2
{1-0 (33) Cheparinov,I (2678)-Sutovsky,E (2660) Poikovsky 2013} fxg6 $13) 14.
Qh4 h5 (14... g5 15. Bxg5 hxg5 16. Nxg5 Rfd8 17. Qh5 e5 18. O-O $44 f6 $2 19.
Qh7+ Kf8 20. f4 $1 exd4 21. f5 fxg5 22. f6 $18 {1-0 (28) Navara,D (2710)-Ris,R
(2407) Reykjavik 2013}) 15. O-O (15. h3 c5 16. g4 cxd4 17. gxh5 Nc5 18. Ng5 Ne6
19. Rg1 d3 20. hxg6 Nxg5 21. Rxg5 fxg6 22. Rxg6 Rf7 23. Bh6 dxe2 24. Bxg7 Rxg7
25. Rxg7+ Kxg7 26. Qg5+ Kf8 27. Qh6+ Kg8 28. Qg6+ Kf8 29. Qh6+ Kg8 30. Qg6+ {
1/2 (30) Pavlov,S (2483)-Shishkin,V (2496) Kiev 2013}) 15... c5 16. e5 Nd5 17.
h3 Qb5 (17... Qf5 18. dxc5 Bxe5 19. Ned4 Bxd4 20. Nxd4 Qd7 21. Nb3 Rfc8 22. Qd4
Nf6 23. Qe5 Nb4 24. Qe2 $14 {1/2 (34) Kantsler,B (2420)-Zanan,E (2257)
Beer-Sheva ISR 2014}) 18. Nc3 Qc6 19. Nxd5 Qxd5 20. Be3 cxd4 21. Bxd4 Nb4 22.
Rfd1 Nc6 23. Bc3 Qe6 24. Re1 Qf5 25. Re4 Rad8 26. Rae1 Bh6 27. e6 f6 28. Nd4
Nxd4 29. Rxd4 Bg5 30. Qe4 Qxe4 31. Rexe4 f5 32. Rxd8 Rxd8 33. Rc4 Bd2 $11 {
1/2 (76) Cori,J (2612)-Ghosh,D (2508) Pune IND 2014}) 12. dxc5 N6d7 13. Qxb7 {
Accepting the offer is probably the right way.} (13. Qa3 {In the following
game White kept an extra pawn but offered a draw as he didn't see any way to
make use of it:} h6 14. Nf3 Nc6 15. O-O b6 16. Be3 Nxc5 17. Rac1 a5 18. Rfd1
Qb8 19. Bxc5 bxc5 20. Qxc5 Rc8 21. b3 Qb7 22. Qe3 Nb4 23. a4 Rxc1 24. Nxc1 {
1/2 (24) Lupulescu,C (2614)-Safarli,E (2638) Skopje 2013}) 13... Qa5+ 14. Bd2
Qa6 $1 (14... Nxc5 15. Qxa8 (15. Bxa5 Nxb7 16. Bc3 h6 17. Bxg7 Kxg7 18. Nf3 Nc5
{[%cal Rc5e4,Rc5d3] (regaining the pawn)} 19. O-O Nxe4 20. Rac1 $14) 15... Nd3+
16. Kf1 Qxd2 17. Qd5 {, and Black's compensation for the exchange looks
insufficient}) 15. c6 $146 (15. Qxa8 $6 Nc6 16. Qxf8+ Kxf8 $36) (15. Qxa6 Nxa6
16. c6 $5 (16. Nc3 Ndxc5 17. Ke2 {1/2 (56) Wojtaszek,R (2734)-Gupta,A (2662)
New Delhi 2012} Bxc3 18. Bxc3 f6 19. Nf3 Nxe4 $11) 16... Bxb2 17. Rb1 Ne5 (
17... Ndc5 18. O-O Bf6 19. Nf3 Nxe4 20. Ba5 Rfc8 21. Rfc1 e6 22. c7 Be7 23. Rc6
$16 {1-0 (31) Kuljasevic,D (2564)-Ben Artzi,I (2307) Skopje 2013}) 18. O-O Rab8
19. Bf4 Rfc8 20. Rfd1 (20. Nf3 f6 21. Nxe5 Bxe5 22. Bxe5 fxe5 23. f4 Rxb1 24.
Rxb1 Rxc6 25. fxe5 Rc4 26. Rb7 Rxe4 27. Rxa7 Rxe2 28. Rxa6 Rxe5 $11 {1/2 (58)
Bulski,K (2538)-Tomczak,J (2581) Warsaw POL 2013}) 20... f6 21. Nf3 Rxc6 22.
Nxe5 fxe5 23. Be3 Rc2 $5 (23... Kf7 24. Bxa7 Rb4 25. Be3 $14 {1-0 (78)
Gajewski,G (2644)-Vachier Lagrave,M (2715) Reykjavik 2013}) 24. Kf1 Kf7 25.
Bxa7 Ra8 26. Rd7 Nb4 27. Rb7 Ba3 28. Be3 Nc6 {[%cal Rc2a2]}) 15... Qxc6 16.
Qxc6 Nxc6 17. Rc1 Rac8 18. b3 Bb2 $6 (18... Nde5 $142 19. O-O Rfd8 20. Be3 Ng4
$44) 19. Rd1 Nce5 ({or} 19... Nf6 20. f3 Rfd8 21. Kf2 {, and White must
gradually consolidate his position}) 20. Be3 h6 21. Nf3 Nxf3+ 22. gxf3 Ne5 23.
f4 Ng4 $2 (23... Nf3+ 24. Kf1 {[%cal Rh2h4]} Nh4 {created many more problems
for White, which he should probably start solving with} 25. f3 $1 {[%cal Yf1f2]
} (25. Bxa7 $143 Rfd8) 25... Nxf3 $140 26. Kf2 Nh4 27. Bxa7 {After the text
move Black's knight is misplaced, and his compensation for White's material
advantage vanishes.}) 24. Bxa7 Ra8 25. Rd2 $1 Ba3 26. Bd4 Rfc8 27. Bc3 Nf6 28.
f3 Nh5 29. Rd3 {White has kept two extra pawns. The rest is clear.} Bd6 30. e5
Bc5 31. a4 Rab8 32. Ba5 Ra8 33. Bd2 Rab8 34. Rc3 Kh7 35. Kd1 Ng7 36. b4 $1 Ba7
37. Rxc8 Rxc8 38. Nc3 Nf5 39. Nb5 Be3 40. Re1 Rd8 41. Re2 Bxf4 42. Kc2 Bxd2 43.
Rxd2 Ne3+ 44. Kc3 Nd1+ 45. Rxd1 $1 Rxd1 46. a5 h5 47. Na3 {White's passed
pawns are unstoppable.} 1-0

[Event "Beijing FIDE GP"]
[Site "Beijing"]
[Date "2013.07.14"]
[Round "9"]
[White "Mamedyarov, Shakhriyar"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2761"]
[BlackElo "2734"]
[Annotator "Krasenkow,M"]
[PlyCount "56"]
[EventDate "2013.07.04"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CHN"]
[EventCategory "21"]
[SourceTitle "CBM 156"]
[Source "ChessBase"]
[SourceDate "2013.09.17"]
[SourceVersion "1"]
[SourceVersionDate "2013.09.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 c6 9. e4 b5 10. Qb3 c5 $5 {A rare but probably good move, solving all
Black's problems.} (10... Be6 11. Qc2 {leads to the position usually arising
after the immediate 5.Qb3 instead of 5.Qa4+}) (10... Qa5 11. e5 (11. Bd2 b4 12.
Na4 Nxe4 13. Bxb4 Qc7 14. Bd3 (14. Be2 Be6 15. Qc2 Bd5 16. O-O a5 17. Ba3 Na6
$11 {1/2 (60) Milanovic,D (2516)-Sarenac,I (2327) Obrenovac 2011}) 14... Be6
15. Qc2 (15. Qd1 Bd5 16. O-O c5 $1 17. Nxc5 Nxc5 18. Bxc5 Nc6 19. Re1 Bxf3 20.
Qxf3 Nxd4 {1/2 (25) Sokolov,I (2690)-Svidler,P (2733) Baden Baden 2004 CBM 143
[Avrukh,B]}) 15... Nd6 (15... Nf6 16. O-O Bd5 17. Ne5 a5 18. Bc5 Nfd7 19. Nxd7
Nxd7 20. Bxe7 Rfe8 21. Bh4 Qf4 22. Bg3 Qxd4 $11 {0-1 (81) Nilssen,J (2356)
-Neubauer,M (2454) Turin 2006}) 16. O-O Bd5 17. Ne5 Nd7 18. Nc3 Qb7 19. Bxd6
exd6 20. Nxd5 {1/2 (52) Esen,B (2455)-Atakisi,U (2392) Ankara 2007} Nxe5 21.
dxe5 cxd5 22. exd6 Rad8 $11) 11... Be6 12. Qc2 Nd5 13. Bd2 Nb4 $5 (13... Qb6
14. Be2 Nd7 15. O-O f6 16. exf6 exf6 17. Rfe1 a5 18. Bc4 Bf7 19. Nxd5 cxd5 20.
Bf1 Rfc8 21. Qd3 b4 22. Rac1 Bf8 23. Bf4 a4 24. h4 $14 {1-0 (46) Moranda,W 
(2570)-Sarenac,I (2410) Kazan RUS 2013}) (13... Nxc3 14. Bd3 Na6 15. O-O Ne2+
16. Bxe2 Qb6 17. a4 Rac8 18. axb5 cxb5 19. Qe4 Nc7 {1-0 (29) Jankovic,A (2553)
-Nedilko,V (2392) Plovdiv 2012 CBM 148 [Let's Check Training]} 20. Qh4 $36) 14.
Qc1 Qb6 15. a3 Nd5 16. h4 (16. Be2 Nd7 {[%cal Yc6c5]} 17. b4 f6 $132) 16... h5
(16... Bg4 $5) 17. Ne4 Nd7 18. Be2 Bf5 19. Nc3 Nxc3 20. bxc3 c5 $11 {1-0 (46)
Jankovic,A (2564)-Sarkar,J (2411) Philadelphia 2012}) 11. dxc5 Qa5 $146 (11...
Na6 $6 12. e5 Nxc5 13. Qb4 Nh5 (13... Na6 14. Qd4 $14) 14. Be3 Na6 15. Qh4 f5
16. Rd1 Qe8 17. Rxd7 $1 Qxd7 18. Bxb5 $18 {1/2 (27) Slisser,T (2145)-Bezemer,A
(2375) Dieren 2004}) 12. Bd2 b4 13. Nd5 Nc6 $1 14. Bd3 (14. Nxb4 $6 Nxe4 15.
Nxc6 Qxc5 $1 {M.Golubev}) (14. Qc4 $5 Be6 $1 (14... Rfd8 $143) 15. Ng5 Rad8 $1
16. Nxe6 fxe6 {, and despite White's material advantage and better pawn
structure, he is in trouble due to his uncastled king:} 17. Nxf6+ (17. Nxb4 Rd4
$1 18. Qxe6+ Kh8 19. Nd3 (19. Qxc6 Rxd2 $1) 19... Nb4 $1 $40) (17. Nf4 Rxd2 $1
(17... Bh6 $36) 18. Kxd2 b3+ 19. Ke2 Ng4 $17) 17... Bxf6 18. Qxe6+ Kg7 19. Qxc6
Bxb2 20. Rd1 Bc3 $1 21. Bd3 (21. Bxc3+ $4 bxc3) (21. Bc4 Bxd2+ 22. Rxd2 b3 $17)
21... Rxd3 22. Bxc3+ Rxc3 23. O-O Qxc5 $15) 14... Be6 15. Ng5 $6 (15. O-O Rfd8
$13) 15... Rad8 $4 {[%mdl 8192] Anish Giri mixes up his preparation, making a
move from the 14.Qc4 line (see above).} (15... Bxd5 16. exd5 Ne5 {gave Black a
good position, e.g.} 17. O-O (17. Rc1 $6 Nxd3+ 18. Qxd3 Qxa2) (17. Be2 Qxc5 18.
Bxb4 Qxd5 $36) 17... Qxc5 18. Bxb4 Qxd5 19. Be2 Rab8 20. Qxd5 Nxd5 21. Ba3 Nf4
$36 {M.Golubev}) 16. Nxe6 fxe6 17. Nxb4 {White simply wins another pawn
without compensation.} Nd4 18. Qc4 Nd7 19. Nc6 $1 ({After} 19. Na6 {Black
probably planned} Qxd2+ $5 20. Kxd2 Ne5 {but even then after} 21. Raf1 $1 Nxc4+
22. Bxc4 {White's advantage is decisive. The text move is simpler.}) 19... Qxc5
20. Nxd8 Ne5 (20... Rxd8 21. O-O Qxc4 (21... Qb6 22. Bf4) 22. Bxc4 Ne5 23. Ba5
$18) 21. Nxe6 $1 Qd6 22. Nxd4+ Nxc4 23. Bxc4+ Kh8 24. Ne6 {White has too much
material for the queen.} Rc8 25. Bd5 Bxb2 26. Rb1 Rc2 27. Rxb2 Rxb2 28. Bc3+
Kg8 (28... Kg8 29. Bxb2 Qb4+ 30. Kf1 Qxb2 31. g3 $18) 1-0

[Event "RUS-chT 07th"]
[Site "Smolensk"]
[Date "2000.04.16"]
[Round "2"]
[White "Sergienko, Sergey"]
[Black "Sakaev, Konstantin"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2425"]
[BlackElo "2629"]
[Annotator "Krasenkow,M"]
[PlyCount "106"]
[EventDate "2000.04.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 077"]
[Source "ChessBase"]
[SourceDate "2000.07.27"]
[SourceVersion "1"]
[SourceVersionDate "2000.07.27"]
[SourceQuality "1"]
[WhiteTeam "Voronezh OShK"]
[BlackTeam "Sankt Petersburg Chess Federation"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Na5 12. Bd4 Qd6 $1 {About this line -
see CBM71,75.} 13. Nb5 Qb4+ 14. Bc3 (14. Qd2 Qxd2+ 15. Kxd2 c6 16. Bxg7 Kxg7
17. dxc6 Nxc6 $11 {Shabtai,R-Jansa,V/Gausdal Int 1995/1-0 (69)}) 14... Bxc3+
15. bxc3 Qc5 16. Qd4 {Quite a harmless attempt to keep White's pawn centre (d4,
e4 instead of d5,e4).} Qxd4 17. cxd4 c6 18. dxc6 bxc6 $5 (18... Nxc6 {is quite
enough for equality:} 19. Rb1 e6 20. O-O Rfd8 21. Rfd1 {1/2-1/2 Bosboom
Lanchava,T-Krupkova,P/BL9900 (Women) 2000}) 19. Na3 {This knight will not find
a good square while the black b6 knight will formidably enter the white camp
via a4.} (19. Nc3 Rfd8 20. O-O-O Rd7 21. Ba6 (21. Rd3 Rad8 22. Rhd1 Nbc4 $5 {
[%cal Yd7b7,Yb7b2]}) 21... Rad8 22. Ne2 $11) 19... Rfd8 20. O-O-O (20. Nc2 Na4)
(20. Rd1 Na4) 20... Na4 $1 {anyway!} 21. Rd3 (21. Rd2 {was probably more
accurate but Black is, of course, more than OK after} Nc3 22. Ba6 Rab8 23. Rc2
Nb5) 21... c5 $1 22. d5 (22. dxc5 Rxd3 23. Bxd3 Nxc5 $15 {[%csl Re5,Rf4] Black
is slightly better due to the weakness of White's pawn structure.}) 22... c4
23. Re3 $6 {Not a good idea. This rook will now be out of play and the black
a8 rook invades to b2.} (23. Rd4 Rac8 $1 $15 {[%csl Rd4]} (23... e5 24. Rd2 c3
(24... Rac8 25. Rc2) 25. Rc2 Rac8 26. Bb5 Nc5 27. Nb1)) (23. Rd2 $142 Rac8 24.
Rc2 Nb6 $11 {[%cal Ye7e6]}) 23... Rab8 24. Rd1 Rb2 25. Rd2 c3 26. Rc2 (26. Rd4
Nc5 27. Rxc3 Rxa2 28. Bd1 (28. Rxc5 Nb3+ 29. Kb1 Rxe2) 28... Rc8 29. Kb1 Rxf2
$17 30. Rb4 a6) 26... Rdb8 27. e5 Kg7 28. Re4 Nb6 29. Rd4 $2 {A blunder
leading to a loss of a pawn.} (29. Rxc3 Nxd5 30. Rc5 Nb4 $1 31. Kxb2 (31. Rxa5
$2 Nxa2+ 32. Kd1 Nc3+ 33. Ke1 Rd8 $1 34. Kf1 (34. Re3 Rxe2+ $1) 34... Rdd2 35.
Bc4 (35. Nc4 Rb1+ 36. Kg2 Rxe2 $19) 35... Rxf2+ 36. Kg1 Nxe4 37. fxe4 Rg2+ 38.
Kf1 Rxh2 $19) 31... Nd3+ 32. Kc3 Nxc5 33. Rb4 Rc8 $15) 29... Rxa2 $1 30. Rxa2
Nb3+ 31. Kc2 Nxd4+ 32. Kxc3 Nxe2+ 33. Rxe2 Nxd5+ 34. Kd4 e6 {With an extra
pawn and opponent's destroyed pawn structure Black easily reaches a win.} 35.
Nc4 Rb4 36. Kc5 Rb3 37. Ne3 Rd3 38. Kc4 Nf4 39. Ra2 Rd7 40. Ng4 g5 41. Nf6 Rc7+
42. Kd4 Kg6 43. Rb2 Rc1 44. Rb8 Rd1+ 45. Ke4 Re1+ 46. Kd4 Rd1+ 47. Ke4 Re1+ 48.
Kd4 Ne2+ 49. Kd3 Ng1 50. Rg8+ Kf5 51. Nxh7 Nxf3 52. Rg7 Nxe5+ 53. Kc3 g4 0-1

[Event "Yangon zt"]
[Site "Yangon"]
[Date "1998.12.09"]
[Round "1"]
[White "Dao, Thien Hai"]
[Black "Zaw, Oo"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2580"]
[BlackElo "2340"]
[Annotator "Krasenkow,M"]
[PlyCount "91"]
[EventDate "1998.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUR"]
[SourceTitle "CBM 069"]
[Source "ChessBase"]
[SourceDate "1999.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Ne5 {Not a good idea as the knight
will have to retreat to d7 - an ugly square!} (11... Na5 $5 12. Bd4 Qd6 (12...
e5 13. Bc5 Re8 14. Bb5 c6 15. dxc6 bxc6 16. Ba6 Bf8 17. Bxf8 Rxf8 18. Qxd8
Raxd8 19. Rd1 Rd4 20. Ke2 Rfd8 21. b3 Kf8 22. Rxd4 Rxd4 23. Ke3 c5 {Soppe,
G-Malisauskas,V/Erevan olm 1996/1-0 (74)}) 13. Nb5 Qb4+ 14. Qd2 Qxd2+ 15. Kxd2
c6 16. Bxg7 Kxg7 17. dxc6 Nxc6 18. Rhd1 f5 19. Ke1 Rac8 20. Nd4 Kf6 21. a4 a5
22. Nxc6 Rxc6 $15 {1-0 Shabtai,R-Jansa,V/Gausdal Int 1995 (68)}) 12. Qb3 {
[%cal Yb3b7,Yb3g8]} (12. Bd4 e6 13. f4 Ned7 14. Bxg7 Kxg7 15. Qd4+ Qf6 16.
O-O-O exd5 17. Nxd5 Nxd5 18. exd5 Rad8 19. Bf3 Rfe8 20. Rd3 Nb6 21. Rhd1 Rd6
22. Kc2 c5 23. Qxf6+ Rxf6 24. Re3 Rd8 25. Re7 Rxf4 26. Rd3 Nc4 27. Rc3 Nd6 28.
Kd2 b6 29. Ke3 Rb4 {0-1 Tyrtania,M-Lagunow,A/Berliner Sommer 1994}) 12... c6
13. f4 {White wants to make use of his pair of bishops. He doesn't need any
complications with the long castling.} (13. O-O-O cxd5 14. Nxd5 Nxd5 15. Rxd5
Qc7+ 16. Kb1 Nc6 17. f4 e5 18. fxe5 Bxe5 19. h4 Rfd8 20. Bc4 b5 21. Rxb5 Rab8
22. Rc1 a6 23. Bb6 Qd7 24. Rd5 Qg4 25. f3 Qxh4 26. Bxd8 Rxb3 27. Bxb3 Qf2 28.
Rxe5 Nxe5 29. Bf6 Nd7 30. Rc8+ Nf8 31. Be7 Qf1+ 32. Kc2 Qe2+ 33. Kc1 {1/2-1/2
Korchnoi,V-Svidler,P/Bad Homburg 1998}) 13... Ned7 14. Rd1 $5 {[%csl Gb3][%cal
Ye3a7,Yb3b7,Ye2g4,Ye4e6,Ya2a5,Rg4d7,Ge2a6,Gd1d8,Yb3g8]} (14. dxc6 bxc6 15. Rd1
e6 16. h4 Qe7 17. h5 Rab8 18. hxg6 hxg6 19. Qc2 Rfd8 20. Kf1 Nf6 21. Kg2 Rxd1
22. Rxd1 Rd8 23. Qb3 Rxd1 24. Bxd1 Qc7 25. a4 Nbd7 26. Qc4 a5 27. Bf3 Qb7 28.
b3 Bf8 29. Ne2 Be7 30. Nd4 Nb8 31. f5 gxf5 32. exf5 e5 33. Nxc6 Nxc6 34. Bxc6
Qc8 35. Bd5 Qxf5 36. Bxf7+ Kg7 37. Be6 Qg6+ 38. Kf1 Qb1+ {Hausrath,
D-Mohandessi,S/tt, Brussels BEL 1996/1-0 (54)}) 14... Qc7 15. O-O Rfd8 (15...
cxd5 16. Nxd5 Nxd5 17. Rxd5 Nf6 18. Rc1 Qb8 19. Rd4 $16 {/+-}) 16. a4 $1 Nf6 (
16... cxd5 17. a5 Nc8 18. Nxd5 Qxa5 19. Ra1 $18) ({After} 16... a5 {Black has
no more useful moves as his pieces are placed extremely awkwardly.}) 17. a5
Nbd7 18. dxc6 bxc6 19. e5 Nd5 (19... Ne8 {is too ugly.}) 20. Nxd5 cxd5 21. Rxd5
e6 (21... Rab8 22. Qc3 Qxc3 23. bxc3 e6 24. Rd2 $18) 22. Rb5 $18 {White easily
realizes his extra pawn.} a6 23. Rc1 Qxc1+ 24. Bxc1 axb5 25. Qxb5 Rab8 26. Qa4
Nc5 27. Qa2 Rb4 28. Qa3 Rdb8 29. a6 Nxa6 30. Qxa6 Bf8 31. Qc6 R8b6 32. Qc2 Rb8
33. Kg2 R8b6 34. Bc4 Rb8 35. b3 R4b6 36. Be3 R6b7 37. Kf3 Be7 38. Qe4 Rc7 39.
h4 Kg7 40. h5 Bf8 41. Ke2 Be7 42. Qf3 Kh8 43. hxg6 hxg6 44. f5 gxf5 45. Qh5+
Kg8 46. Bh6 1-0

[Event "Gashimov Memorial-A 1st"]
[Site "Shamkir"]
[Date "2014.04.24"]
[Round "5"]
[White "Mamedyarov, Shakhriyar"]
[Black "Caruana, Fabiano"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2760"]
[BlackElo "2783"]
[Annotator "Krasenkow,M"]
[PlyCount "167"]
[EventDate "2014.04.20"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "AZE"]
[EventCategory "22"]
[SourceTitle "CBM 160"]
[Source "ChessBase"]
[SourceDate "2014.05.15"]
[SourceVersion "1"]
[SourceVersionDate "2014.05.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 {One of off-beat
continuations against the Grьnfeld Defence which are gaining popularity.} Nxc3
(6... c5 7. Rc1 Nc6 $5 {is another option} (7... Nxc3 8. bxc3 {- game}) {
. Here is a recent practical example:} 8. Nxd5 Qxd5 9. Rxc5 Qxa2 10. e3 $5 (10.
Qc1 {was played earlier, e.g.} h6 11. Bd2 O-O 12. e3 Be6 13. Be2 Rac8 14. O-O
Nb8 15. Bc3 Rxc5 16. dxc5 Bxc3 17. Qxc3 Rc8 18. Nd4 Nc6 $11 {1/2 (42)
Zvjaginsev,V (2653)-Golod,V (2555) Rethymnon 2003}) 10... Qxb2 11. Be2 h6 12.
Bh4 e5 13. O-O exd4 14. exd4 O-O 15. d5 Nd4 16. Nxd4 Qxd4 17. Be7 Re8 18. Rc7
Qb6 19. d6 Be6 20. Bf3 $14 {0-1 (48) Grandelius,N (2562)-Salem,A (2546)
Istanbul 2012 Of course, all this needs further checking and analysis.}) (6...
h6 $5 7. Bh4 c5 8. Rc1 Nxc3 9. bxc3 O-O (9... Be6 10. e4) 10. e3 Be6 11. Qd2
Nc6 12. Be2 Bd5 13. O-O Qa5 14. c4 Bxf3 15. Qxa5 Nxa5 16. Bxf3 g5 {1/2 Colin,V
(2375)-Bobras,P (2563)/Hastings 2006/CBM 110 ext}) 7. bxc3 c5 8. Rc1 {This
position (which usually arises from the English opening: 1.c4 c5 2.Nf3 Nf6 3.
Nc3 d5 4.cxd5 Nxd5 5.d4 Nxc3 6.bxc3 g6 7.Bg5 Bg7) offers White some
alternatives like} (8. e3) ({or} 8. Qd2) 8... Bg4 $146 {Black has a lot of
satisfactory continuations:} (8... Qa5 9. Qd2 Bf5 (9... cxd4 10. cxd4 Qxd2+ 11.
Nxd2 Nc6 12. e3 Be6 13. Bc4 Bxc4 14. Rxc4 Kd7 15. Ke2 Na5 16. Ra4 b6 $11 {
1/2 (37) Smith,A (2484)-Nyback,T (2598) Puhajarve 2012}) 10. e3 Nd7 11. Be2 Nf6
12. O-O Ne4 13. Qb2 Nxg5 14. Bb5+ Kf8 15. Nxg5 Bf6 16. Nf3 Kg7 $11 {1/2 (50)
Rychagov,A (2512)-Grischuk,A (2705) Moscow 2004}) (8... Nc6 9. e3 h6 10. Bh4
O-O 11. Be2 Be6 12. Qd2 cxd4 (12... g5 13. Bg3 Qa5 14. d5 Rfd8 {0-1 (38) Ulko,
J (2451)-Nikolenko,O (2537) Moscow 2010} 15. e4 $14) 13. cxd4 g5 14. Bg3 Qa5
15. h4 Qxd2+ 16. Kxd2 g4 17. Ne1 Bxa2 18. Rc2 Bd5 19. Bxg4 e5 $132 {0-1 (58)
Van Wely,L (2678)-Safarli,E (2653) Antalya TUR 2013}) (8... O-O 9. Qd2 (9. e3
Be6 $5 (9... b6 10. Bd3 Bb7 11. O-O Nd7 12. e4 cxd4 13. cxd4 Nf6 14. d5 Rc8 15.
Qa4 $14 {1-0 (28) Arutinian,D (2556)-Bernasek,J (2487) Pardubice 2012}) (9...
cxd4 10. cxd4 Bg4 11. Qd2 Bxf3 12. gxf3 Qd5 13. Rg1 e5 14. dxe5 Qxe5 15. f4 Qe6
16. Bc4 $14 {1-0 (27) Ulko,J (2420)-Belitsky,A Nizhnij Novgorod 1998}) (9...
Nc6 $5) 10. Qa4 Nc6 11. Be2 Rc8 12. O-O h6 13. Bh4 g5 14. Bg3 Qa5 $1 15. Qxa5
Nxa5 $11 {0-1 (38) Banikas,H (2522)-Eljanov,P (2597) Plovdiv 2003 CBM 098 
[Ftacnik,L]}) (9. e4 Bg4 10. d5 Qa5 11. Qd2 e6 12. Be2 exd5 13. exd5 Bxf3 14.
Bxf3 Re8+ 15. Be3 Nd7 16. O-O Qa6 17. c4 Qd6 $11 {1-0 (37) Shipov,S (2557)
-Bykhovsky,A (2501) ICC INT 2010}) (9. d5 Bf5 $1) 9... Bg4 (9... Nc6 10. d5 Na5
11. c4 b6 12. e4 Qd7 13. Bd3 e5 {0-1 (39) Ulko,J (2443)-Belous,V (2554) Moscow
2013} 14. h4 $36) (9... cxd4 10. cxd4 Bf5 11. e3 h6 12. Bh4 Nc6 13. Be2 Qd7 14.
O-O Be4 15. Qb2 Rfc8 16. Rfd1 Bd5 17. Rc5 $14 {1-0 (24) Rychagov,A (2509)
-Smikovski,I (2538) Moscow 2006}) 10. e3 Bxf3 (10... Nc6 11. Be2 Qd5 12. Bh4 (
12. c4 Qf5 13. Bd3 Qd7 14. d5 Bxf3 15. gxf3 Ne5 16. Be2 f5 17. Bf4 Nf7 18. h4
e5 $15 {1/2 (26) Dubov,D (2498)-Khairullin,I (2638) Moscow 2012}) 12... Rad8
13. h3 Bc8 14. O-O Qd7 15. Rfd1 Qc7 16. Qb2 b6 17. Qa3 $14 {1-0 (68) Ulko,J 
(2420)-Vinokurov,A Nizhnij Novgorod 1998}) 11. gxf3 Nc6 12. Bg2 Qd5 13. Bh4 e5
14. dxe5 $2 (14. c4 $142) 14... Qc4 $1 15. f4 Nxe5 16. fxe5 Qxh4 17. O-O Rad8
18. Qe2 Bxe5 $17 {0-1 (28) Hochstrasser,M (2386)-Sutovsky,E (2675) Zuerich 2009
}) 9. Qb3 (9. Qd2 O-O {- see above}) 9... Qc7 (9... O-O $5 10. Qxb7 Nd7 {
A.Korotylev}) 10. e3 Bxf3 11. gxf3 O-O 12. d5 a6 13. a4 b5 $5 {[%mdl 512] A
very interesting pawn sacrifice, however, typical for variations of the
Grьnfeld Defence in which White delays castling.} 14. axb5 axb5 15. Bxb5 (15.
Qxb5 $6 Qe5) 15... Nd7 16. c4 (16. f4 $5 {preventing ...Nd7-e5} Rfb8 $44) 16...
Ne5 17. Ke2 Ra7 18. f4 Ng4 {[%mdl 64] Black misses} (18... h6 $1 19. Bh4 (19.
fxe5 hxg5) 19... Rfa8 $3 ({or} 19... Qc8 20. h3 Qf5 $1 21. fxe5 Qh5+ 22. Kf1
Qxh4 {with an excellent position}) 20. fxe5 Qxe5 {with a strong attack 
(recommended by A.Korotylev)}) 19. Rc2 Nf6 20. Qd3 Rfa8 21. Bxf6 Bxf6 {Still,
in this position Black should have enough counterplay for the missing pawn. He
controls the a-file, White's b5 bishop is out of play, and it is very
difficult for White to push his e-pawn.} 22. Bc6 Rb8 23. h3 Rb6 24. Bb5 Qc8 25.
Rd2 Kg7 26. Kf3 Ra1 27. Rdd1 Ra2 28. Kg2 {White has removed his king from the
dangerous area.} Bh4 (28... Qa8 {, keeping control of the a-file, looks more
logical}) 29. Rhf1 Rf6 $6 {[%mdl 32] Black wants to push ...g6-g5 but this is
not a good plan.} 30. Qb3 Ra7 $6 (30... Qa8 {still enabled Black to control
the a-file due to the resource} 31. Qc3 g5 $1 32. fxg5 Bxg5 33. Ra1 (33. Bd7
$142 {bringing the bishop into play}) 33... Bh4 $1) 31. Qc3 Kh6 32. Ra1 Rxa1
33. Qxa1 g5 34. fxg5+ Bxg5 35. Qe5 {Black has no longer has any compensation
for the pawn; still, it is difficult for White to convert it due to the
opposite-coloured bishops.} Bh4 36. Qe4 Rg6+ 37. Kh2 Bf6 38. Ba4 Qc7+ 39. Kh1
Qc8 40. Qf3 Kg7 41. Bc2 Rg5 42. Rb1 Be5 43. Rg1 {Alas, White has no better
plan.} Rxg1+ 44. Kxg1 {[%mdl 4096]} Bd6 45. Kg2 Qg8 46. Qh5 Kh8+ 47. Kf1 Qg7
48. f4 Kg8 49. Kf2 Kh8 50. Kf3 Bc7 51. Qf5 Bd6 52. Qh5 Bc7 53. Bb1 Bb8 54. Bd3
Bd6 55. h4 (55. e4 $5 {was a good opportunity to advance White's central pawns
but after} Qg6 $1 ({but not} 55... Qc3 56. Qxf7 $1 Qxd3+ 57. Kg4 {, and Black
has nothing better than} h5+ 58. Qxh5+ Kg7 59. e5 {, where White should win})
56. Qxg6 hxg6 57. e5 Bb8 58. Ke4 f5+ $1 59. Kf3 Kg7 {Black should hold a draw.}
) 55... Qg8 56. Bc2 Qg7 57. Bd3 Qg8 58. Be4 Qg7 59. Bb1 Qg8 60. Bd3 Qg7 61. e4
{With the pawn on h4, this advance gives Black a choice.} Qc3 (61... Qg6 {
is still possible but the text move is good, too.}) 62. Qxf7 Qxd3+ 63. Kg4 Qe2+
64. Kf5 h5 $1 {[%cal Re2g4] That's the difference! White doesn't control the
g4-square.} 65. Qf8+ Kh7 66. Qf7+ Kh8 67. Qg6 {The last try, which
unexpectedly succeeds.} (67. Qe8+ $5 Kg7 68. Qg6+ Kf8 $1 69. e5 {was another
interesting attempt:} Bb8 $1 (69... Bxe5 $6 70. fxe5 Qxc4) 70. Qh6+ Ke8 $1 71.
Qh8+ Kd7 72. e6+ (72. Qxb8 Qg4+ 73. Ke4 Qe2+ $11) 72... Kc7 73. d6+ Kb7 $1 (
73... exd6 $143 74. Qh7+ Kb6 75. Kf6) 74. dxe7 Qg4+ 75. Kf6 Qxf4+ 76. Kg6 Qg4+
77. Kf7 Qf5+ 78. Qf6 Qh7+ 79. Qg7 (79. Kf8 Bd6) 79... Qf5+ 80. Kg8 Qxe6+ 81.
Qf7 Qg4+ 82. Kh7 Qe4+ 83. Kh6 Qe3+ 84. Kxh5 Qe2+ {, and White can't escape the
perpetual}) 67... Qxc4 $2 {In the seventh hour of play Black finally goes
astray.} (67... Qf3 $1 68. e5 (68. Qh6+ Kg8 69. Qg5+ Kf7 $5 70. Qg6+ Kf8) 68...
Qh3+ 69. Ke4 Qh1+ $11) 68. Qxh5+ Kg7 69. Qg6+ Kh8 70. Ke6 {White's king finds
a shelter, and his pawns decide the game.} Qf1 71. Qh6+ Kg8 72. Qg6+ Kh8 73.
Qh5+ Kg7 74. Qg4+ Kf8 75. Qh5 Kg7 76. Qg5+ $1 Kf8 77. e5 Qb1 78. Qh6+ Kg8 79.
Qg5+ Kf8 80. f5 $1 Bxe5 81. Qxe7+ Kg8 82. Kxe5 Qb2+ 83. Ke6 Qe2+ 84. Kf6 1-0

[Event "EU-ch 8th"]
[Site "Dresden"]
[Date "2007.04.13"]
[Round "10"]
[White "Dreev, Alexey"]
[Black "Kurnosov, Igor"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2633"]
[BlackElo "2566"]
[Annotator "Krasenkow,M"]
[PlyCount "80"]
[EventDate "2007.04.03"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 118"]
[Source "ChessBase"]
[SourceDate "2007.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2007.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Nf3 Bg7 7. Rc1 {
An unsuccessful attempt to bring some "fresh blood" into this system.} (7. Bg5
{is the main theoretical move.}) 7... Nc6 8. e3 e5 $1 $146 {[%mdl 520] Not
fearing 9.Bb5, Black immediately attacks White's pawn centre.} (8... a6 {
is a bit too slow although Black equalized in the following game:} 9. Be2 O-O
10. O-O Re8 11. Qc2 e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. Bf3 Bf5 15. e4 Be6 16.
b3 Qd6 17. g3 Rad8 {1/2-1/2 Peric,D-Mihalj,M/Zadar 2004/CBM 103 ext (22)}) (
8... O-O $5 9. Be2 (9. Bb5 e5 $5 {leads to the game position}) 9... e5 10. dxe5
Nxe5 11. Nxe5 Bxe5 12. O-O Bf5 13. e4 $5 Bxc3 14. Rxc3 Bxe4 15. Qc1 Re8 16. Re1
Nd5 17. Rc4 c6 {0-1 Romanov,O-Voitsekhovsky,S/Minsk 2001/EXT 2002 (69) - White
failed to prove his compensation for the sacrificed pawn.}) 9. Bb5 O-O 10. Bxc6
exd4 11. Nxd4 bxc6 {Quite a typical situation for some lines of the Gruenfeld
- Black's pawns are doubled along the c-file (one of them can even be captured)
but he has excellent counterplay due to his strong bishop pair.} 12. Nce2 (12.
Nxc6 Qd7 $36 {[%cal Yc8b7]}) 12... Qg5 13. O-O c5 14. Nf3 Qe7 15. Bc3 (15. Qc2
$5 {[%cal Rc2c5] was probably more appropriate:} c4 {[%cal Rc8f5]} 16. Ng3 Bb7
17. Bc3 $13) 15... Rd8 16. Qe1 (16. Qc2 $6 Bf5 17. Qb3 c4) 16... Bh6 {
Correctly evading the exchange.} 17. Ne5 $6 {Another inaccuracy.} (17. b4 $142
$5 {trying to gain the c4 square for his pieces} c4 $140 18. Bd4 $15) 17... Rd6
18. b3 Ba6 $17 19. Nc4 $6 {White can't stand the pressure of the black bishops
and gives up a pawn.} Bxc4 (19... Nxc4 $143 20. bxc4 Bxc4 21. Be5 $5 Qxe5 22.
Rxc4) 20. bxc4 Nxc4 21. Ng3 (21. Bf6 Qe4 22. Ng3 Qe6 $17) 21... Qe6 {The rest
is practically a matter of technique. Black's strong c-pawn should decide the
game.} 22. Rc2 Rad8 23. Qe2 Nb6 24. Ba1 c4 25. a4 (25. Bd4 Rc8 $1 {[%cal Yc7c5]
}) 25... Rd3 26. a5 Na4 27. Rfc1 Nc5 {[%cal Rc5b3]} 28. Bc3 Nb3 29. Re1 Bg7 30.
Bxg7 Kxg7 31. h4 c3 32. Nf1 h5 33. a6 c5 34. Qf3 R8d7 35. Qf4 Qxa6 $6 (35...
Rd1 36. Rxd1 Rxd1 $19 {[%cal Rb3d2]}) 36. Ng3 Qf6 37. Qc4 (37. Qxf6+ Kxf6 38.
Ne4+ Ke5 39. Nxc3 {was more stubborn.}) 37... Rd1 38. Rf1 R7d2 39. Ne4 (39.
Qxc3 Rxf1+ 40. Nxf1 Rxf2 $1 $19) 39... Rxf1+ 40. Qxf1 Rxc2 0-1

[Event "Bucharest Kings 6th"]
[Site "Bucharest"]
[Date "2012.11.07"]
[Round "1"]
[White "Topalov, Veselin"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2769"]
[BlackElo "2786"]
[Annotator "Krasenkow,M"]
[PlyCount "119"]
[EventDate "2012.11.07"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "ROU"]
[EventCategory "20"]
[SourceTitle "CBM 152"]
[Source "ChessBase"]
[SourceDate "2013.01.15"]
[SourceVersion "1"]
[SourceVersionDate "2013.01.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 Bg4 8.
Bb5+ c6 9. Ng5 O-O 10. Be2 Bxe2 11. Nxe2 {This line, which has gained some
popularity this year, was examined in CBM 147, annotations to Aronian - Navara.
} e5 (11... h6 12. Nf3 N8d7 13. Be3 Re8 14. Rd1 Qc7 15. Bf4 Qc8 16. O-O Nf8 17.
Nc3 Qe6 18. Qc2 Rad8 19. a4 Qc8 20. b3 $14 {1-0 Bernasek,J (2487)-Shishkin,V 
(2485)/Brno CZE 2012/The Week in Chess 931 (50)}) (11... Na6 12. Qh3 $5 (12.
Be3 Qd6 13. O-O Qb4 $1 14. Qxb4 (14. Qc2 $142 Qc4 15. Rfc1 Qxc2 16. Rxc2 e5 17.
dxe5 Bxe5 18. a3 $11) 14... Nxb4 {[%cal Rb4c2]} 15. Rfc1 e5 $1 $15 {0-1
Aronian,L (2805)-Navara,D (2712)/Wijk aan Zee 2012/CBM 147/[Krasenkow] (60)})
12... h6 13. Nf3 Qd7 14. Qh4 h5 (14... g5 15. Bxg5 hxg5 16. Nxg5 $44) 15. h3 c5
16. g4 cxd4 17. gxh5 $13 {0-1 Fressinet,L (2714)-Sutovsky,E (2687)/Istanbul
2012/CBM 151/[Ftacnik,L] (37)}) 12. dxe5 $146 {[%mdl 8] This move itself is
quite obvious but GM Veselin Topalov's idea is very interesting.} ({The attack
started with} 12. Qh3 {was unsuccessful in the following game:} h6 13. Nf3 exd4
14. Bxh6 Re8 15. O-O-O (15. O-O $5 c5 16. Rac1) 15... c5 16. Ng5 Qd7 17. Qh4 f6
18. Bxg7 Qxg7 19. Nh3 Nc6 $17 {0-1 Navara,D (2706)-Svidler,P (2741)/Prague
2012/CBM 149 (41)}) 12... h6 (12... Bxe5 $2 13. Qh3 h5 14. Ne6 $1 {winning a
pawn.}) 13. Nh3 $5 (13. Nf3 {is more natural although after} N8d7 {Black
should gradually equalise, e.g.} 14. O-O (14. e6 $6 Nc5 15. exf7+ Rxf7 16. Qc2
Nd3+ 17. Kf1 c5 $44) (14. Nf4 Kh7) 14... Qe7 15. a4 (15. Bf4 Nxe5 16. Nxe5 Bxe5
17. Bxh6 Qh4 18. f4 Qxh6 19. fxe5 Rae8) 15... Nxe5 16. Nxe5 Qxe5 17. a5 Nd7 18.
Qxb7 Qxe4 19. Qxd7 Qxe2 {etc.}) 13... N8d7 14. f4 {An ambitious attempt. White
holds his pawn but leaves his king in the centre.} Nc5 15. Qc2 Nd3+ 16. Kf1 f5
(16... c5 {was played in a later game but White managed to consolidate his
position:} 17. Nf2 c4 18. Be3 Qd7 19. Rd1 Rfd8 20. Nc3 Qc6 21. Ke2 Nb4 22. Qb1
Na4 23. a3 Nxc3+ 24. bxc3 Nd3 25. Nxd3 cxd3+ 26. Rxd3 $16 {1-0 Lupulescu,C 
(2613)-Nyback,T (2598)/Bremen GER 2012/The Week in Chess 940 (48)}) 17. exf6
Rxf6 18. Be3 $6 (18. Nf2 Nxf2 19. Kxf2 Qe7 20. Rf1 (20. g3 Re8 21. Nc3 g5 $1
22. f5 $6 Rf7 {[%csl Re4][%cal Rg7c3]}) 20... Re8 21. Ng3 {[%cal Yf2g1]} h5 $1
$132) (18. a4 $5 {[%cal Ra4a5]}) 18... Rf7 $2 ({Surprisingly,} 18... Nxb2 $1 {
was possible at once:} 19. e5 (19. Bd4 N2c4 20. Bxf6 $2 Qxf6 {[%cal Rf6a1,
Rc4e3]}) 19... N6c4 20. Bd4 c5 $5 ({well,} 20... Qxd4 21. Nxd4 Ne3+ 22. Kf2
Nxc2 23. Nxc2 Rf7 $15 {is good enough}) 21. exf6 (21. Bxc5 $2 Rc6) 21... cxd4
22. Qxg6 Qxf6 23. Qxf6 Bxf6 $36) 19. Rd1 Rd7 20. Nf2 $1 Nxb2 21. Rxd7 Qxd7 22.
Bc1 $2 {[%mdl 2048] Both players start committing mistakes in complications.} (
22. e5 $1 N2c4 (22... N6c4 23. Bc1) 23. Bxb6 Nxb6 24. Qxg6 $16) 22... N6c4 $2 {
[%csl Rb2,Rc4]} (22... N2c4) 23. h4 (23. e5 $5 Rd8 24. Qxg6 Nd1 25. h3 $16)
23... b5 24. Rh3 (24. e5 $1 $16 {[%cal Rc2g6]}) 24... Rd8 25. Rg3 Nd1 26. e5 $1
Qf5 27. Qxf5 gxf5 {[%mdl 4096]} 28. Rg6 (28. Nd3 $1 {[%cal Rf1e1]} Nde3+ 29.
Bxe3 Rxd3 30. Bxa7 $16) ({If White preferred to play for a positional
advantage rather than win a pawn, then} 28. h5 {was more appropriate.}) 28...
Nce3+ (28... Nde3+ $5 29. Kg1 c5) 29. Kg1 c5 30. Ng3 Kf7 31. Ra6 Bf8 32. Rxa7+
Be7 {Black has considerably improved the position of his pieces.} 33. Nxd1 (33.
h5 $5 Ke8 34. Ra6) 33... Rxd1+ 34. Kf2 Ng4+ 35. Ke2 Rxc1 36. Nxf5 Ke6 37. Nxe7
h5 {White has won a second pawn but Black is now even more active.} 38. Nc8 c4
$6 (38... Rc2+ $142 39. Kd3 Rxg2) 39. Nd6 (39. Ra6+ $1 Kd5 (39... Kf5 40. Kd2
$1 Rg1 41. e6 Rxg2+ 42. Kc3) 40. Rd6+ Kc5 41. Ne7 {was the best way to keep
the position alive.}) 39... Rc2+ 40. Kf3 Rc3+ 41. Ke4 Re3+ 42. Kd4 Rd3+ 43. Kc5
c3 44. Rc7 c2 45. Kxb5 Ne3 {A third pawn has gone but the threat of losing the
rook for the c2-pawn forces a liquidation into a drawish endgame.} 46. f5+ ({Or
} 46. Rc6 Ke7 47. Nf5+ Nxf5 48. Rxc2 Nxh4 {, and Black should not lose.}) 46...
Kxe5 47. Nc4+ Nxc4 48. Rxc4 Rd5+ 49. Kc6 Rd6+ 50. Kc7 Rd2 51. a4 Rd4 52. Rc5+
Kf6 53. a5 Rd5 54. Rc6+ Kxf5 55. a6 Ra5 $1 56. Kb6 Ra2 57. a7 Rb2+ 58. Kc7 Ra2
59. Kb7 Rb2+ 60. Kc7 1/2-1/2

[Event "Nanjing Pearl Spring 2nd"]
[Site "Nanjing"]
[Date "2009.10.04"]
[Round "6"]
[White "Jakovenko, Dmitrij"]
[Black "Topalov, Veselin"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2742"]
[BlackElo "2813"]
[Annotator "Krasenkow,M"]
[PlyCount "58"]
[EventDate "2009.09.28"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "CHN"]
[EventCategory "21"]
[SourceTitle "CBM 133"]
[Source "ChessBase"]
[SourceDate "2009.11.19"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 c5 {This line was examined in CBM 103 (annotations to Cs.Horvath
- Flumbort) and CBM 107 (annotations to Riazantsev - Sutovsky).} 10. e5 Nh5 11.
Be3 cxd4 12. Qxd4 Bc6 13. Be2 Qa5 (13... Bxf3 14. Bxf3 Qxd4 15. Bxd4 Nb4 16.
O-O-O Nf4 17. Kb1 Ne6 18. Be3 Bxe5 19. Rd7 Nc6 20. Rhd1 Rab8 21. Na4 Rfc8 22.
Rc1 Ned4 $11 {1/2 Riazantsev,A (2608)-Sutovsky,E (2665)/Sochi 2005/CBM 107 (32)
}) (13... Qc7 14. Qh4 Bxe5 15. Nxe5 Qxe5 16. O-O-O Nc7 17. Rhe1 Ne6 18. Bxh5
Qxh5 19. Qxh5 gxh5 20. Nd5 Rfe8 21. Bh6 Kh8 22. Bd2 Rac8 (22... Kg7 $142 $11)
23. Bc3+ Kg8 24. Re5 Bxd5 25. Rexd5 Red8 26. Rxh5 $14 {/=1-0 Grigoriants,S 
(2553)-Esen,B (2287)/Warsaw 2005/CBM 108 (62)}) 14. O-O Nb4 $6 $146 {Hardly a
good novelty.} (14... Bxf3 15. Bxf3 Bxe5 16. Qd5 Qxd5 17. Nxd5 Rfe8 18. Rac1 e6
19. Nc3 Re7 20. a3 Bf4 21. Bxh5 Bxe3 22. fxe3 gxh5 23. Ne4 $11 {1/2 Sokolov,I 
(2695)-Van Wely,L (2654)/Belgium 2003/CBM 097 ext (37)}) 15. Qh4 (15. Qc5 $5 {
is simple and strong:} Qxc5 16. Bxc5 a5 (16... Bxf3 17. Bxf3 Nd3 18. Bxe7 Rfe8
19. Nd5 Bxe5 20. g3 $14) 17. g3 (17. Bxe7 Rfe8 18. Bd6 Nf4 $132) 17... Bxf3 18.
Bxf3 Bxe5 19. Bxe7 Rfe8 20. Bg5 $14) 15... Nc2 $6 (15... Bxf3 16. Bxf3 Bxe5 17.
Qxe7 (17. Bxh5 Bf6 $1 18. Qe4 gxh5 19. Qxb7 Nc2 $132) 17... Nc2 18. Rad1 Nxe3
19. fxe3 Rae8 20. Qxb7 Nf6 $44 {[%csl Re3,Ge5]}) 16. g4 $1 Nxe3 $2 {After this
move White wins a piece without sufficient compensation.} (16... Nxa1 $8 17.
Rxa1 Qb4 $1 18. gxh5 Qxb2 19. Rc1 Bxf3 20. Bxf3 Rac8 21. h6 $1 Bxe5 22. Ne2 $14
{White's bishop pair and "nail" on h6 gives him slightly better prospects.})
17. fxe3 Bh6 18. Nd1 Kh8 19. gxh5 Rg8 20. Kf2 Rad8 21. hxg6 $6 (21. Qxe7 {
was much simpler, e.g.} gxh5 22. Rg1 Rxg1 23. Kxg1 Bxf3 24. Qf6+ Bg7 25. Qxf3
Bxe5 26. Kf1 $18) 21... Bxf3 22. Kxf3 (22. gxf7 $2 Rg7 23. Qxe7 Bxe2 24. f8=Q+
Rxf8+ 25. Qxf8+ Rg8 26. Qxh6 Qd2 $11) 22... Rxg6 23. Qe4 (23. Qxe7 $4 Qd5+ 24.
e4 Qd2 $19 {[%cal Rd2f4,Rd8d3]}) 23... f5 $5 24. Qc4 Qd2 25. Rc1 $4 {[%mdl
8192] Just blunders away a rook. In fact, it was not easy for White to parry
Black's threats and consolidate his position:} (25. Qc3 Qd5+ 26. Kf2 Bg5 27.
Ke1 Bh4+ 28. Nf2 Rg2 $44) (25. Rf2 $1 {was probably the most appropriate but
after} Qe1 (25... Rc6 $143 26. Qb3 Rb6 27. Bc4 $1 Qe1 28. Qc3 Qh1+ 29. Ke2 Rc6
30. a4 $16) (25... Rg4 26. Bf1 $1 Qa5 27. b4 $1 Qxe5 28. Qc3 $16) 26. Bd3 Rg4
27. Qc2 Qh1+ 28. Ke2 Rg1 29. Qc3 e6 {it is not easy for White to swap off his
pieces.}) 25... Rc6 $19 26. Qh4 Qxc1 27. Qxe7 Rg8 28. e6 Qd2 29. Kf2 f4 0-1

[Event "Grenke Chess Classic 6th"]
[Site "Karlsruhe/Baden Baden"]
[Date "2019.04.23"]
[Round "4"]
[White "Meier, Georg"]
[Black "Vachier Lagrave, Maxime"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2628"]
[BlackElo "2773"]
[Annotator "Krasenkow,M"]
[PlyCount "188"]
[EventDate "2019.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "19"]
[SourceTitle "CBM 190"]
[Source "ChessBase"]
[SourceDate "2019.06.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.30"]
[SourceQuality "1"]

{[%evp 0,188,19,25,23,8,31,37,62,57,44,47,76,85,114,-18,15,36,36,0,7,11,30,50,
56,54,40,28,15,35,35,-25,-13,-11,-5,-7,-9,-20,-17,-7,24,12,55,42,85,73,66,47,
83,71,64,62,55,51,36,49,49,24,33,27,20,29,26,4,0,0,0,-41,-42,-54,-71,-80,-80,
-76,-56,-79,-80,-63,-85,-97,-97,-120,-79,-74,-77,-105,-82,-82,-65,-77,-88,-103,
-111,-104,-110,-109,-88,-94,-109,-119,-77,-86,-56,-86,-86,-74,-66,-77,-57,-57,
-47,-57,-46,-42,-40,-69,-63,-101,-101,-52,-45,-52,-65,-122,-57,-57,-34,-34,-33,
-126,-80,-126,-118,-123,-122,-134,-129,-136,-142,-181,-190,-172,-187,-193,-203,
-250,-254,-254,-254,-254,-254,-254,-227,-254,-254,-254,-254,-254,-254,-254,
-254,-254,-254,-254,-254,-405,-442,-340,-338,-344,-340,-339,-59,-58,-55,-56,
-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54]} 1. d4 Nf6 2. c4
g6 3. Nc3 d5 4. Nf3 Bg7 5. h3 {Another attempt to avoid major Gruenfeld theory.
} dxc4 {Interestingly, the Megabase already contains hundreds of games with 5.
h3, and most of them saw} (5... O-O {, to which} 6. Bf4 {was usually played.
This line should be absolutely harmless for Black; still, Maxime
Vachier-Lagrave choses another continuation.}) 6. e4 c5 7. d5 O-O (7... b5 $5 {
, common in the 5.h4 system, looks very logical here, too.}) 8. Bxc4 b5 $1 {
This counterblow is Black's usual continuation when White plays 5.h4 instead
of 5.h3. The difference is that White can now go for a quiet position with
short castling. Still, Black has no problems in that case.} (8... a6 $6 9. a4
Nfd7 10. a5 b5 11. axb6 Qxb6 12. O-O $16 {1-0 (33) Radin,D (2043)-Gajcin,S 
(1755) Novi Sad 2016}) 9. Nxb5 Nxe4 10. O-O Ba6 11. Qe2 Nd6 12. Nxd6 Qxd6 $11
13. Re1 (13. Rd1 {was more solid.}) 13... Bxc4 14. Qxc4 Rd8 15. Bf4 Qxd5 16.
Qxd5 Rxd5 17. Rxe7 {The endgame is roughly equal. The following fight doesn't
change the evaluation for a long time.} Nc6 18. Re2 Nb4 19. Rae1 h6 20. b3 Kh7
21. Re7 Rf5 22. Bg3 g5 23. Ne5 Kg8 24. Nc4 Bd4 25. R1e2 Nd5 26. Re8+ Rxe8 27.
Rxe8+ {[%mdl 4096]} Kh7 28. Ra8 Nc3 29. Rxa7 Ne2+ 30. Kh2 Bxf2 31. Bxf2 Rxf2
32. Ne5 Nf4 33. Rxf7+ Kg8 34. Rf6 $2 (34. Kg3 $1 Rxg2+ 35. Kf3 Rxa2 36. Rf6 {
was the right way to a draw. If} Kg7 {then} 37. Rf7+) 34... Rxg2+ 35. Kh1 {
[%csl Rh1]} Re2 36. Nd7 Kg7 37. Ra6 Nxh3 {With two connected passed pawns and
White's king under threats, Black obtains good winning chances.} 38. Nxc5 Nf4
39. Ra4 Kg6 40. Ne4 Rb2 $2 {Now White stops Black's pawns.} (40... Re3 $17 {
[%cal Yg5g4]} 41. Kh2 Kf5 $1 {etc.}) 41. Ng3 $1 Kf6 42. Ra6+ Ne6 43. Ra4 Nc5
44. Ra5 Nd3 45. Ra6+ Ke5 46. Rxh6 Rxa2 47. Rh8 Rb2 48. Rf8 g4 49. Kg1 Rxb3 {
The position looks absolutely drawish; still, Black manages to trick his
opponent.} 50. Re8+ Kd5 51. Rd8+ Ke6 52. Re8+ Kf6 53. Rf8+ Ke7 54. Rg8 Rb1+ 55.
Kg2 Nf4+ 56. Kf2 Rb2+ 57. Ke3 Nd5+ 58. Kd4 Nf6 59. Rg5 Ke6 60. Re5+ Kf7 61. Rg5
Rb4+ 62. Ke5 (62. Ke3 {is simpler.}) 62... Nh7 63. Rf5+ Kg6 64. Rf1 Rb3 65. Ne2
Rb5+ 66. Kd4 Ng5 67. Nf4+ Kf5 68. Ng2+ $6 (68. Ne2+ $142 Nf3+ 69. Ke3 {
stopping Black's pawn.}) 68... Nf3+ 69. Ke3 Rb3+ 70. Kf2 Nh2 71. Ra1 $2 ({
Surprisingly,} 71. Rd1 $1 {was the only way to save the game. If} g3+ {then}
72. Ke2 $1 Ke4 73. Rd8 {[%cal Rd8e8]} Rb2+ 74. Rd2 Rxd2+ 75. Kxd2 Kf3 76. Ne1+
$1 ({but not} 76. Nh4+ $2 Kf2 {[%cal Rh2f3]}) 76... Kf2 77. Nd3+ Kf1 (77... Kg2
78. Ke3) 78. Nf4 Ng4 79. Kd3 {, and Black can't make progress, e.g.} Ke1 (79...
Kf2 80. Nh5 $5 g2 81. Nf4) 80. Ke4 Kf2 81. Nd3+ (81. Nh5 $4 Nf6+ $1) 81... Kf1
82. Nf4 {etc.}) 71... g3+ 72. Kg1 Nf3+ 73. Kh1 (73. Kf1 $2 Rb2) 73... Rb2 74.
Ra5+ Ke4 75. Ra1 Nd4 {[%cal Ye4f3]} 76. Kg1 (76. Re1+ Ne2 $1 77. Nh4 Kf4 78.
Ng2+ Kg4 79. Rf1 Rb8 80. Ne3+ Kh3 81. Ng2 Rh8 82. Ne3 g2+ 83. Nxg2 Kg3+ $19)
76... Rf2 77. Ra4 Ke5 78. Ra5+ Kd6 79. Ra6+ Kc5 {Black finds an interesting
way to win: he deprives White's rook of all squares on the 1st rank!} 80. Ra5+
Kb4 81. Ra1 Kb3 82. Rd1 Nf3+ 83. Kh1 Kb2 $22 84. Rg1 Nxg1 85. Kxg1 Kc3 86. Ne3
Kd3 87. Nf1 {White regains the g3 pawn but still loses due to the poor
position of his king and knight.} Ke2 88. Nxg3+ Kf3 89. Nf5 (89. Nf1 Rg2+ 90.
Kh1 Ra2 91. Nh2+ Kf2 92. Ng4+ Kg3 $19) 89... Rd2 90. Nh4+ Kg3 91. Nf5+ Kg4 92.
Ne3+ Kf3 93. Nf5 Rd5 94. Ne7 Rc5 {White's knight, parted from his king, is
doomed.} 0-1

[Event "RUS-chT 12th"]
[Site "Sochi"]
[Date "2005.04.19"]
[Round "1"]
[White "Riazantsev, Alexander"]
[Black "Sutovsky, Emil"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2608"]
[BlackElo "2665"]
[Annotator "Krasenkow,M"]
[PlyCount "63"]
[EventDate "2005.04.19"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Nizhny Tagil Politekhnik"]
[BlackTeam "Saransk TPS"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 c5 {About this line - see CBM103, annotations to Cs.Horvath -
Flumbort.} 10. e5 (10. d5 {is senseless as Black is a tempo up comparing to
the 5.Qb3 system:} e6 (10... Qa5 11. Bd2 Qb4 12. Rc1 Qxc4 13. Bxc4 b5 14. Be2
c4 15. e5 Ng4 16. Bf4 Nc5 17. h3 Nh6 18. O-O a6 19. g4 Rac8 20. Rfd1 {1-0
Javakhishvili,L-Melia,S/Batumi 2001/EXT 2002 (67)}) (10... b5 11. Qe2 c4 12. e5
Nh5 13. Bd2 Nb4 14. O-O-O Nd3+ 15. Kb1 Bf5 16. Ka1 b4 17. Nb5 Qa5 18. Nfd4 a6
19. Nc6 {0-1 Popov,R-Pavlov,O/Novosibirsk 2002/ (19)}) 11. Be2 exd5 12. exd5
Re8 13. Be5 Qb6 (13... Nxd5 $1 14. Qxd5 Nb4 {is even stronger}) 14. O-O Nh5 15.
Bxg7 Nxg7 16. Qf4 Qb4 17. Qd6 Bg4 18. Bxa6 Bxf3 19. Bd3 Qxb2 20. Rac1 Qd2 21.
Bb5 Nf5 $13 {0-1 Solomunovic,I-Saric,I/Pula 2004/CBM 100 ext (37)}) 10... Nh5 {
As usually, it is unfavorable for Black to "win" a queen for a couple of
pieces:} (10... Be6 $6 11. exf6 Bxc4 12. fxg7 Bxf1 $6 (12... Kxg7 13. Bxc4 cxd4
14. Rd1 Qb6 15. Be5+ f6 16. Bxd4 Qxb2 17. O-O Rac8 18. Rb1 $36 {Ftacnik}) 13.
gxf8=Q+ Qxf8 14. Kxf1 cxd4 15. Nxd4 Qc8 16. Nde2 Qf5 17. Rd1 e5 18. Be3 Nb4 19.
h4 $1 $16 {1-0 Horvath,C-Flumbort,A/Budapest 2004/CBM 103/[Ftacnik] (36)}) 11.
Be3 cxd4 12. Qxd4 Bc6 $1 {Both black knights are on the edge of the board but
his bishops are active and he is ahead in development. The general evaluation:
the position is equal.} 13. Be2 Bxf3 (13... Qa5 14. O-O Bxf3 15. Bxf3 Bxe5 16.
Qd5 Qxd5 17. Nxd5 Rfe8 18. Rac1 e6 19. Nc3 Re7 20. a3 Bf4 21. Bxh5 Bxe3 22.
fxe3 gxh5 23. Ne4 Nc7 24. Nf6+ Kh8 25. Nxh5 Ne8 $11 {1/2-1/2 Sokolov,I-Van
Wely,L/Belgium 2003/CBM 097 ext (36)}) 14. Bxf3 Qxd4 15. Bxd4 Nb4 16. O-O-O Nf4
{Black has given up one of his bishops but his knights are now very active.}
17. Kb1 (17. Bxb7 $6 Nbd3+ 18. Kc2 Rab8 19. Rxd3 Nxd3 20. Be4 Rfd8 21. Kxd3
Bxe5 22. Nd5 $1 Bxd4 23. Nxe7+ Kf8 24. Nc6 $11) 17... Ne6 18. Be3 Bxe5 19. Rd7
Nc6 20. Rhd1 (20. Rxb7 Ned4 21. Be4 f5 {and Black is out of danger.}) 20...
Rab8 21. Na4 {White's activity compensates Black's extra pawn but not more.}
Rfc8 22. Rc1 Ned4 23. Bxd4 Nxd4 24. Rxc8+ Rxc8 25. Bxb7 Rc7 26. Rxc7 Bxc7 27.
h3 Bd6 28. Kc1 Bb4 29. Kd1 e5 30. a3 Be7 31. Nc3 f5 32. Ne2 1/2-1/2

[Event "Pamplona-A 16th"]
[Site "Pamplona"]
[Date "2006.12.24"]
[Round "3"]
[White "Morozevich, Alexander"]
[Black "Shirov, Alexei"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2747"]
[BlackElo "2720"]
[Annotator "Krasenkow,M"]
[PlyCount "65"]
[EventDate "2006.12.22"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[EventCategory "17"]
[SourceTitle "CBM 116"]
[Source "ChessBase"]
[SourceDate "2007.02.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.02.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Nf3 Bg7 7. Rc1 O-O 8.
Bg5 h6 9. Bh4 g5 10. Bg3 c5 {About this line - see CBM 90, annotations to
Priehoda-Sutovsky by GM L.Ftacnik.} 11. d5 $5 e6 12. d6 $1 $146 {[%csl Gd6]
[%mdl 8] A new, very strong plan. This pawn will be Black's first problem; his
weak kingside will be the other.} (12. dxe6 Qxd1+ 13. Rxd1 Bxe6 14. e3 N8d7 15.
Bb5 Nf6 16. O-O a6 17. Be2 Nbd5 18. Nxd5 Nxd5 19. Ne5 Rfd8 20. Bf3 Rac8 $11 {
1/2-1/2 Popov,L-Pytel,K/Zemun 1980/EXT 2000 (40)}) 12... Nd5 {Black is trying
to make use of White's uncastled king. In vain...} (12... Nc6 13. e3 f5 14. Bb5
$5 $36) 13. h4 (13. Nxd5 exd5 14. Qxd5 (14. Rxc5 Qb6) 14... Bxb2 15. Rxc5 Na6
$44 {etc. is what Black hoped for.}) 13... g4 14. Ne5 Qxd6 $6 {This leads to
complications favorable for White.} (14... Nd7 $142 15. Nxd7 Bxd7 16. e4 Nxc3
17. bxc3 f5 18. Qd2 fxe4 19. Be2 h5 20. O-O $44 {[%csl Gd6]}) (14... Nxc3 15.
bxc3 Nd7 16. Nxd7 Bxd7 17. e4 {-14...Nd7}) 15. e4 $1 f5 (15... Bxe5 16. Nb5 $16
) 16. exf5 (16. exd5 f4 17. Nc4 Qd8 18. Bh2 {looks even stronger.}) 16... Bxe5
17. Nb5 Qc6 (17... Bxg3 18. Nxd6 Bxd6 19. fxe6 Bxe6 20. Bc4 Rf5 21. Qxg4+ Kh8
22. O-O $18) 18. Bxe5 exf5 19. Nd6 {[%csl Gd6,Ge5]} Nb6 20. f3 Be6 21. Bb5 Qd5
22. Qe2 (22. Qxd5 Bxd5 23. Rxc5 Nc6 $14) 22... N8d7 23. Bf4 gxf3 $6 {This
leads to a quick collapse along the g-file.} (23... Rf6 $142 {although Black's
position is difficult anyway.}) (23... a6 $143 24. Rd1 Qxa2 25. Bxd7 Nxd7 26.
Bxh6 $16) 24. gxf3 Kh7 25. Rd1 Qxa2 26. Kf2 Rf6 27. Rhg1 {[%mdl 128]} Raf8 (
27... Qb3 28. Be5 Nxe5 29. Qxe5 Qc2+ 30. Ke1 Qb3 31. Rd2 $3 (31. Qxf6 $2 Qe3+
$11) 31... Nd5 (31... Raf8 32. Ne8) (31... Qxf3 32. Rf1) 32. Ke2 $1 {[%cal
Rb5c4]} Rg8 33. Rxg8 Bxg8 34. Bd3 $18 {V.Lebedev}) (27... Rg8 {was the last
chance to continue resistance:} 28. Rxg8 Kxg8 29. Ne8 Rf7 30. Bxh6 $16) 28. Be5
$1 Nxe5 29. Qxe5 {[%cal Rd6e8]} Nd7 30. Bxd7 Bxd7 31. Ne4 $1 fxe4 (31... R6f7
32. Nf6+ $1) 32. Rxd7+ Kh8 33. Rg6 1-0

[Event "Hastings 00 75th"]
[Site "Hastings"]
[Date "2000.01.11"]
[Round "8"]
[White "Sokolov, Ivan"]
[Black "Sutovsky, Emil"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2637"]
[BlackElo "2597"]
[Annotator "Krasenkow,M"]
[PlyCount "76"]
[EventDate "2000.01.04"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[EventCategory "13"]
[SourceTitle "CBM 075"]
[Source "ChessBase"]
[SourceDate "2000.04.05"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. Bxf3 Ne5 12. Be2 Nec4 (12... c6 {1-0
Malaniuk,V-Ftacnik,L/MK Cafe Cup-A 1999 (40) is less accurate - see CBM73.})
13. Bc1 c6 (13... e6 $5 {Ftacnik}) 14. dxc6 (14. O-O $5 {deserves further
investigation. So far there has been only one practical test of this move:}
cxd5 15. exd5 Rc8 16. Qb3 Na5 17. Qa3 Nxd5 18. Nxd5 Qxd5 19. Rb1 Nc6 20. Bf3
Qd7 21. Bg5 e6 22. Rfd1 Nd4 23. Qxa7 Nxf3+ 24. gxf3 Qb5 25. Be3 Ra8 26. Qc5 Qe2
27. Kg2 Rxa2 28. Rd2 Qa6 29. Rd6 Qa8 30. b4 Rc8 31. Qb5 Rac2 32. Rbd1 Bf8 33.
Rd7 Qa3 $2 34. Qe5 Qb2 $4 35. Bd4 Rxf2+ 36. Kh1 {1-0 Cebalo,M-Belotti,B/8th
Valle d'Aosta Open 2000}) 14... bxc6 {It is now clear that, if White manages
to consolidate his position (develop his pieces, connect his rooks) without
positional concessions, he will be clearly better due to his pair of bishops
and Black's weak c-pawn. However, how can he reach that? And the first
question: should he exchange the queens or not?} 15. Qc2 {White decides to
keep the queens. In case of} (15. O-O {Black could have played} Qd4 {anyway,
to obtain a better situation for the queen swap.}) 15... Qd4 16. O-O Rfd8 17.
Rb1 $6 {This enables Black to destroy the white pawn structure and convert his
weakness into a strong passed pawn.} (17. a4 {is also a concession as the
white b-pawn becomes weak, e.g.} Qc5 18. Nb1 Qb4 19. Ra2 Na5 20. Nd2 Rd7 21.
Nf3 Rad8 22. h3 Nbc4 23. Bxc4 Nxc4 24. b3 Ne5 {1/2-1/2 Novikov,I-Holzke,F/5th
Wichern op Hamburg 1999}) ({Or} 17. Rd1 Qc5 {and what now?}) {The conclusion
is that 16.Qc2 (and perhaps the whole line) doesn't yield White any advantage.}
17... Na3 18. bxa3 Qxc3 19. Qxc3 (19. Qb3 $5) 19... Bxc3 20. Ba6 {White should
create some counterplay, otherwise Black will be clearly better, e.g.} (20. Be3
Bd4 {or}) (20. Bg5 Kf8 (20... f6 21. Rfc1 Bd2 22. Bxd2 Rxd2 23. Bg4 $11) 21.
Rfd1 Bd4) 20... c5 21. Bf4 Bd2 $1 (21... e5 22. Bg5 Rd7 23. Rfc1 Bd4 24. a4 $1)
22. Be5 $2 {A strange move. Why not} (22. Bc7 {? E.g.} c4 (22... Rd7 23. Bxb6
axb6 24. Rxb6 {and White should not lose}) (22... Rd4 23. Rfd1) 23. Bxd8 Rxd8
24. Rb5 {stopping the c4 pawn although Black's chances remain preferable.})
22... c4 $1 {[%csl Gc4] Having passed the c4 square, this pawn becomes
unstoppable.} 23. Bb7 f6 24. Bc7 Rd7 25. Bxa8 {A win of the exchange doesn't
help White. However,} (25. Bxb6 {lead to a hopeless rook endgame:} Rxb7 26. Be3
Rxb1 27. Rxb1 Bxe3 28. fxe3 c3 29. Kf2 {and now:} Rd8 $142 $1 (29... Kf7 30.
Ke2 (30. Rc1 Rc8 31. Ke2 Ke6 32. Kd3 Ke5 $19) 30... Rd8 31. Rb7 Rd2+ 32. Kf3 c2
33. Rc7 Ke6 {and it is not yet clear whether Black can win}) 30. Kf3 (30. Rb7
Rc8 31. Rb1 c2 32. Rc1 Kf7 33. Ke2 Ke6 34. Kd3 Ke5 $19) (30. Ke1 Rd2) 30... c2
31. Rc1 Rd2 $19) 25... Rxc7 26. Bd5+ Nxd5 27. exd5 c3 28. g3 c2 29. Rbc1 {
In the rook endgame Black will be practically a pawn up, with his rook
supporting the far-advanced pawn from behind. As White has no time just to
bring his king and capture the pawn, the game is over.} Kf7 {Black needn't
hurry with ...Bxc1} 30. Kg2 f5 31. f4 Ke8 32. Kf3 Kd7 33. Ke2 Bxc1 34. Rxc1 Kd6
35. Kd2 Kxd5 36. a4 h5 37. a5 a6 38. h4 Kd4 0-1

[Event "Bundesliga 0405"]
[Site "Germany"]
[Date "2005.03.14"]
[Round "13.1"]
[White "Savchenko, Stanislav"]
[Black "McShane, Luke J"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2497"]
[BlackElo "2629"]
[Annotator "Krasenkow,M"]
[PlyCount "75"]
[EventDate "2004.11.12"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 106"]
[Source "ChessBase"]
[SourceDate "2005.06.06"]
[SourceVersion "1"]
[SourceVersionDate "2005.06.06"]
[SourceQuality "1"]
[WhiteTeam "Hofheim"]
[BlackTeam "Werder Bremen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 {This rare
line was examined in several CBM issues, most recently in CBM89 
(Nogueiras-Herrera, annotations by GM E.Postny) and CBM98 
(Pelletier-Mamedyarov, annotations by GM L.Ftacnik).} 7. Bg5 Be6 8. Qc2 Nc6 9.
Rd1 {White has protected the d4 pawn but Black has other objects of
counterplay.} h6 10. Bh4 (10. Bf4 {is another option.}) 10... Nb4 11. Qb1 O-O (
11... N6d5 {is also possible, e.g.} 12. e3 O-O 13. Be2 c5 14. O-O Qa5 15. Nxd5
Nxd5 16. dxc5 Qxc5 17. Nd4 Bc8 18. Nb3 Qb4 19. Bg3 Bf5 20. Bd3 Bxd3 21. Qxd3
Nb6 $11 {1-0 Salo,H-Meskanen,V/Jyvaskyla 1992/EXT 2000 (31)}) 12. e3 Bf5 $1 {
A typical positional trick: Black provokes e3-e4 to weaken the d4 pawn and
therefore activate his g7 bishop.} (12... Qd7 13. Be2 N4d5 14. O-O Nxc3 15.
bxc3 Nd5 16. Qc1 Bf5 17. c4 Nf6 18. Ne5 Qa4 19. f3 c5 20. e4 Bc8 21. d5 Qxa2 {
1/2-1/2 Gulko,B-Tseitlin,M/Beersheba 1993/CBM 038}) 13. e4 Bg4 14. d5 Bxf3 {
Black takes a simple course.} (14... f5 $5 {is more aggressive and quite
appropriate:} 15. a3 g5 $1 (15... fxe4 $2 16. Qxe4 Bxf3 17. gxf3 g5 18. axb4
gxh4 19. Rg1 Qd6 20. Bd3 Rf7 21. Rg6 Rf6 22. Rg4 {1-0 Sadler,M-Gurevich,I/
Hastings 1992/ (30)}) 16. Bg3 (16. axb4 $6 gxh4 17. Be2 $2 (17. h3 $142) 17...
Qd6 $1 18. Nd4 Qxb4 $1 19. Bxg4 fxg4 20. Ne6 Bxc3+ 21. bxc3 Qxc3+ 22. Ke2 Rf6
23. h3 c6 $1 {0-1 Pelletier,Y-Mamedyarov,S/Plovdiv 2003/CBM 098/[Ftacnik](26)})
(16. Bxg5 hxg5 17. axb4 Qd6 18. Be2 Qxb4 $36) 16... f4 $1 17. axb4 fxg3 18.
hxg3 Rxf3 19. gxf3 Bxf3 20. Rh2 Bxd1 (20... Nd7 $5 21. Be2 Ne5 22. Qc2 Qd6 23.
Kf1 Rf8 24. Nb5 Qf6 $44 {0-1 Furman,S-Savon,V/USSR/1970/ (47)} (24... Qb6 $5))
21. Qxd1 Qd6 (21... a5 22. bxa5 Rxa5 23. Bh3 Nc4 24. Be6+ Kh8 25. Qh5 Qf8 26.
Qxg5 Nxb2 27. Ke2 Qf6 {1/2-1/2 Tisdall,J-Jansa,V/Aarhus/1983 (35)}) 22. Bh3 Rf8
23. Be6+ Kh8 24. Qh5 Qe5 25. Qg6 Qf6 26. Qxf6 Rxf6 27. e5 Rf8 28. Ne4 Nc4 29.
Nxg5 Nxe5 {1/2-1/2 Herraiz Hidalgo,H-Fernandez Garcia,J/Burgos 2003/ (43)}) 15.
gxf3 Qd7 16. a3 Na6 {As usually in such positions, Black doesn't care about
the doubling of his a-pawns.} 17. Qc2 $6 {This slow move is quite dubious in
such a tense position.} (17. Bg3 c6 18. d6 Rfd8 19. Be2 e5 20. f4 exf4 21. Bxf4
Qe6 22. O-O g5 23. Bg3 Nc5 24. b4 Ncd7 $13 {1/2-1/2 Pelletier,Y-Sutovsky,E/
Pamplona 2003/CBM 099 (45)}) 17... Rfe8 18. Bg3 c6 19. d6 (19. Bxa6 $142 bxa6
20. O-O $13) 19... Nc5 $1 {[%cal Yc5e6,Ye6d4] Tactics helps Black, as it often
happens in the Gruenfeld.} 20. dxe7 Qxe7 21. Bd6 Bxc3+ $1 22. bxc3 (22. Qxc3 $4
Nxe4) 22... Qf6 $1 23. Bxc5 $2 {White accepts the "piece sacrifice" and ends
up with material losses.} ({After} 23. Be2 Ne6 $17 {the black knights (not
exchanged in-time - see annot to move 19) are stronger than the white bishops,
too.}) 23... Qxf3 24. Rg1 Rxe4+ 25. Be2 Rxe2+ 26. Qxe2 Qxc3+ 27. Qd2 Qxc5 {
Three pawns for the exchange are quite enough to win; however, it's not the
end of the story!} 28. Rg3 Qh5 29. Qe2 Qh4 $6 {A wrong evaluation! With the
queens on the board White can create counterthreats against the black king.} (
29... Qxh2 $2 30. Rxg6+ $1 fxg6 31. Qe6+ $11) (29... Qxe2+ 30. Kxe2 Nd5 {
was good enough.}) 30. Rd6 Qf4 (30... Nd5 {was essential but not quite clear
anymore after} 31. Qe5 $132) 31. Qd3 {[%cal Rd6g6]} Qc1+ (31... Kf8 $5) 32. Ke2
Re8+ $6 (32... Qc4 $1 {was still possible.}) 33. Kf3 Qh1+ 34. Rg2 Kf8 {Black
fails to find the right defense. Both players certainly were under severe time
pressure.} (34... Rf8 $1 {[%cal Yb6d5]}) 35. Qd4 Kg8 36. Qd3 Kh8 $2 {This
leads to a dangerous situation for Black.} (36... Rf8 $1) 37. Qd4+ $2 (37. Qc3+
$1 {was correct, securing a draw and setting a nice trap:} Kh7 $2 (37... Kg8 $8
38. Qc2 Kf8 $1 $11 {is the only way for Black to keep the balance after his
careless 36th move!}) 38. Qc2 $1 {and Black has no defense against the 39.Rxg6
threat:} Kh8 (38... Rg8 39. Rd1) 39. Rd1 Re1 40. Qc3+ $18) 37... Kh7 38. Rf6 {
White lost on time here. After the mistake on the previous move his position
is again poor, e.g. 38...Re7/\39.Qd3 Nd7!-+} (38. Qd3 $142 Rf8 $1 (38... Rg8))
0-1

[Event "Gibraltar Masters 14th"]
[Site "Caleta"]
[Date "2016.01.28"]
[Round "3"]
[White "Tari, Aryan"]
[Black "Vachier Lagrave, Maxime"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2556"]
[BlackElo "2785"]
[Annotator "Krasenkow,M"]
[PlyCount "74"]
[EventDate "2016.01.26"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "GGB"]
[SourceTitle "CBM 171"]
[Source "ChessBase"]
[SourceDate "2016.03.14"]
[SourceVersion "2"]
[SourceVersionDate "2016.03.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Na4 Bf5 7. Nh4 (7. Nc5
$143 b6 8. e4 bxc5 9. exf5 cxd4 10. Nxd4 {1/2 (30) Hammes,M (2377)-Dunsbach,R 
(2320) Altenkirchen 2001} Qd6 11. Nf3 Nc6 $36) 7... Bd7 (7... Bc8 {is an
alternative. Black equalised in the following game:} 8. e4 Nf6 9. Nc3 O-O 10.
Be2 c5 11. d5 e6 12. Nf3 exd5 13. exd5 Bf5 14. O-O Ne4 15. Qb3 Qb6 16. Na4 Qxb3
17. axb3 Nd7 18. Nh4 Rfe8 19. Nxf5 gxf5 20. Bb5 Rad8 $11 {0-1 (49) Narciso
Dublan,M (2530)-Ivanchuk,V (2748) Barcelona 2005}) 8. e4 ({Black has no
problems after} 8. Nc5 e5 $1 9. Nf3 Qe7 10. Nxd7 Nxd7 11. dxe5 c6 {[%cal Rd7e5]
} ({but not} 11... Nxe5 $2 12. Qxd5 Rd8 13. Qe4 f5 14. Qe3 Qb4+ 15. Bd2 Qxb2
16. Bc3 $18 {1-0 (19) Narciso Dublan,M (2552)-Picard,R (2309) Barcelona 2007}))
(8. Nf3 Nb6 $5 9. Nc5 $140 Bc6) 8... e5 $146 {[%mdl 4] This new move is more
accurate than the immediate knight retreats although the following game
quickly ended in a draw:} (8... Nb6 9. Nc5 e5 10. Nf3 exd4 11. Bg5 f6 12. Qxd4
{1/2 (12) Demin,V (2439)-Uzhva,A (2288) Belgorod 2009}) 9. Nf3 Qe7 ({Even} 9...
exd4 $5 10. exd5 O-O {is possible, e.g.} 11. Be2 Qe7 12. Nxd4 Qb4+ 13. Nc3 Bxd4
$13) 10. Nxe5 (10. exd5 exd4+ 11. Be2 O-O {leads to the above-mentioned line} (
11... Qb4+ {is possible, too, e.g.} 12. Bd2 Qxa4 13. Qxa4 Bxa4 14. Rc1 c6 15.
b3 Bb5 16. Bxb5 cxb5 17. Rc7 b6 18. Bb4 Na6 19. Re7+ Kd8 20. Rxf7 Re8+ 21. Kd1
Nxb4 22. Rxg7 Re7 23. Rg8+ Re8 $11)) 10... Qb4+ (10... Bxe5 $5 11. exd5 ({
In the event of} 11. dxe5 Qb4+ 12. Nc3 Nxc3 13. bxc3 Qxc3+ 14. Bd2 Qxe5 15. Bd3
O-O 16. O-O c5 {[%cal Yb8c6,Yc6d4] White does not have sufficient compensation
for the pawn}) 11... Bxd4+ 12. Be2 $11) 11. Nc3 Nxc3 12. Qd2 Nxa2 13. Rxa2
Qxd2+ 14. Bxd2 Be6 15. Ra1 O-O {The result of the complications is a roughly
equal but complicated queenless middlegame. One of the world's top players
manages it better than his young opponent.} 16. Bc3 Re8 17. Bb5 c6 18. Bd3 Rd8
19. Ke2 Nd7 20. Nxd7 $6 (20. Bc4 $5 Nxe5 21. Bxe6 fxe6 22. dxe5 $13) 20... Rxd7
21. e5 Bd5 $15 {[%csl Gd5]} 22. Rhg1 f6 (22... Bf8 $5 {[%cal Yc6c5]}) 23. f4 c5
24. dxc5 (24. exf6 Bxf6 25. dxc5 Bxc3 26. bxc3 Bc6 $15) 24... fxe5 25. fxe5 ({
White should not lose after} 25. f5 e4 26. Bb5 Rc7 27. Rgd1 $1 Bxc3 28. Rxd5
Bxb2 29. Ra4) 25... Bxe5 $1 26. Bb5 $2 {A waste of a tempo.} (26. Bxe5 Re8 27.
Rge1 Rxe5+ 28. Kf2 {is still close to a draw, e.g.} Rxe1 29. Kxe1 $1 Bxg2 30.
Bc4+ Kg7 31. Rxa7) 26... Re7 27. Bxe5 Rxe5+ 28. Kd3 Rd8 29. Kc3 Re3+ 30. Kd2 $2
(30. Kc2 Bb3+ 31. Kb1 {was White's last chance to stay in the game although
after} a6 32. Ba4 Bd5 {his position remained difficult. After the text move
Black obtains a perfect arrangement of his pieces and starts collecting
material.}) 30... Rb3 31. Ba4 Rb4 32. b3 a5 33. Kc3 Rc8 34. Kb2 Rxc5 35. Rgc1
Rxc1 36. Rxc1 b5 37. Rc5 Bc4 $1 {[%cal Rc4f1]} 0-1

[Event "Corus"]
[Site "Wijk aan Zee"]
[Date "2000.01.15"]
[Round "1"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Kasparov, Garry"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2659"]
[BlackElo "2851"]
[Annotator "Krasenkow,M"]
[PlyCount "108"]
[EventDate "2000.01.15"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "18"]
[SourceTitle "CBM 075"]
[Source "ChessBase"]
[SourceDate "2000.04.05"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Na5 12. Bd4 Qd6 {After the game
Arlandi-Konopka (see CBM71) it became clear that this and not} (12... e5 {or})
(12... c5) {is the best option for Black in the present position.} 13. Bxg7
Kxg7 14. f4 {If White refrains from this move, Black obtains good counterplay
on the dark squares, in the meantime destroying the white pawn centre by means
of ...c7-c6 or ...e7-e6, e.g.} (14. Qd2 Qf6 15. O-O-O c6 16. Qd4 Qxd4 17. Rxd4
cxd5 18. Nxd5 Rac8+ 19. Kb1 Nc6 20. Rd2 Rfd8 21. Rhd1 Nxd5 22. exd5 Ne5 23. d6
e6 24. f4 Nc4 25. Rd4 Nb6 26. Bf3 Rd7 27. Rb4 Kf6 28. a4 Rc5 {Mchedlishvili,
M-Ftacnik,L/Eu Team Ch 1999/0-1 (45)}) 14... Qf6 (14... e5 {is possible, too:}
15. fxe5 $6 (15. f5 $5) 15... Qxe5 16. f4 $6 Qxf4 17. Qd4+ f6 18. Qc5 {
(winning a piece but Black obtains a strong attack against the weak white king
as - unlike in the line 14...Qxf4? 15.Qd4+ f6 16.Qc5 - the e-file is open)} c6
$1 19. Qxa5 cxd5 20. exd5 Rac8 21. Qb5 Rfe8 22. Kd1 Re3 23. Kc2 a6 24. Qa5
Rxe2+ 25. Kb3 Rxb2+ {0-1 Johannessen,L-Rytshagov,M/Troll Masters 2000}) 15. Qd2
c6 {An attempt to avoid a draw after} (15... Nac4 16. Bxc4 Nxc4 17. Qe2 Nb6 18.
Qe3 Nc4 19. Qe2 Nb6 20. Qe3 Nc4 21. Qe2 {1/2-1/2 Sokolov,I-Shirov,A/FIDE WCh
KO g/25+10 1999}) 16. dxc6 {No doubt, Kasparov had analysed all the
consequences of the more principal} (16. e5 {Black has apparently no problems
after} Qh4) 16... Rfd8 $1 {Black doesn't just recapture the pawn but continues
his attack of the b2 and f4 pawns. This is more active than} (16... Nxc6 {
after which the white queen would be quite safe on e3.}) 17. Qe3 (17. Nd5 Nxd5
(17... Qxc6 $2 18. Qxa5 Nxd5 19. exd5 Rxd5 20. Qa3) 18. cxb7 {was losing
because of} Nxf4 $3 19. bxa8=Q (19. Qxa5 Qxb2 $19) 19... Rxd2 {and now:} 20.
Kxd2 (20. Bf3 Ng2+ 21. Kxd2 Qxb2+ 22. Kd3 (22. Kd1 Nc4 $19) 22... Nf4+ 23. Ke3
e5 $19) (20. Bg4 Ng2+ 21. Kxd2 Qxb2+ $19) 20... Qxb2+ 21. Ke3 Qxe2+ 22. Kxf4 (
22. Kd4 Qd3+ 23. Kc5 Qc4#) 22... Qxf2+ 23. Kg4 (23. Ke5 Qf6+ 24. Kd5 Qd6#)
23... h5+ 24. Kh3 Qf3+ 25. Kh4 Qg4#) 17... Nac4 18. Qc5 (18. Bxc4 Nxc4 19. Qe2
(19. Qc5 Nxb2) 19... Qxc6 {[%cal Rd8d2] is hopeless for White, e.g.} 20. Rd1
Rxd1+ 21. Nxd1 Rd8 {[%cal Rd8d2]}) 18... Rac8 {Black contents himself with a
pleasant endgame. He had a sharper but also promising option:} (18... Nxb2 $5
19. cxb7 (19. c7 Rd7 $1) 19... Rab8) 19. c7 Rd7 20. Bxc4 Rcxc7 21. Qg5 Rxc4 {
Black's problem is the abundance of attractive lines. It isn't easy to pick
out the best one.} ({After} 21... Qxg5 22. fxg5 Nxc4 23. Nd5 $1 (23. Nb5 Rc5
24. Nxa7 Nxb2 $19) 23... Rc6 24. b3 $1 (24. Rb1 Nxb2) 24... Nb2 $5 (24... Nd6
25. f3) 25. O-O (25. Ke2 e6 26. Nb4 Rcd6) 25... e6 26. Nf6 Rd2 27. Rfc1 {
White is still alive.}) ({Not so clear was also} 21... Nxc4 22. Qxf6+ exf6 23.
Nd5 {e.g.} Rc6 24. b3 Nd6 25. f3 f5 26. e5 Nb5 27. Rd1 Rc5 28. Ne3) 22. Qxf6+
Kxf6 23. Rc1 Rcd4 {Black controls the d-file; besides, his king is active and
the whie monarch is rather unsafe.} 24. b3 {White tries to cut off the black
knight; otherwise it will become very active, e.g.} (24. Rc2 Nc4 25. b3 (25. f3
Ne3) 25... Na3) ({or} 24. f3 Nc4 (24... Rd3 25. Rf1) 25. Nd5+ (25. Ne2 Rd2)
25... Kg7 26. b3 Nb2) {However, now the black rook enters the white camp along
the 3rd rank.} 24... Rd3 25. Ke2 {It is not easy to find a useful move for
White but it doesn't look wise to remove his king from the central e1 square.}
(25. Rg1 $5 Rf3 26. Ne2) 25... Rd2+ 26. Kf3 (26. Ke1 $5 Rb2) 26... R7d3+ 27.
Kg2 e6 {The black knight is ready to enter the game while the white pieces are
tied up.} 28. Rhe1 (28. Rhd1 $4 Rxc3) 28... Ke7 {Preparing 29...Nd7 but
allowing White to get rid of his weak f4 pawn.} (28... Nd7 29. Red1 $1) (28...
a6 {is interesting but White isn't apparently in a zugzwang:} 29. Rcd1 Rxd1 30.
Nxd1 Rd2 31. Nc3 Rc2 32. Re3 Nd7 {[%cal Yd7b8,Yb8c6,Yc6b4]} 33. Kf1 {[%cal
Yf1d1]}) 29. f5 (29. Kf1 Rf3 30. Re2 Rd7 {[%csl Rf4]}) (29. Rcd1 $5) 29... Nd7
30. fxe6 fxe6 31. Kf1 Ne5 32. Re2 {White has managed to consolidate his
position; however, the holes on the dark squares don't enable him to equalize.}
g5 33. Na4 (33. Rc2 $5) 33... Rd1+ 34. Re1 Rxe1+ 35. Kxe1 Rd7 {[%cal Ye5d3,
Yd3f4,Ye7f6,Yf6e5] Black is preparing to rearrange his pieces in the best way.}
36. Ke2 (36. Nc5 {didn't help in view of} Rc7 37. Ke2 Kd6 38. b4 b6 39. Rd1+
Ke7 40. Nb3 Rc2+ 41. Rd2 Rc3 {and White is helpless}) 36... Nd3 37. Rc3 Nf4+
38. Kf3 Kf6 39. Nc5 {White has no moves!} (39. Nb2 Rd2) 39... Rc7 40. h4 $6 {
After the exchange of this pawn (and the h7 pawn becoming passed) any knight
endgame will be definitely lost for White.} (40. Na4 {was probably better
although the knight endgame after} Rxc3+ 41. Nxc3 Ke5 42. Ke3 {looks also
difficult for White:} g4 43. f3 h5 {etc.}) 40... e5 41. hxg5+ Kxg5 42. Rc4 b5 {
Black decides it will be easier to promote the h-pawn with the help of his
rook.} (42... b6 $5) 43. Rc1 b4 44. Rc4 a5 45. Na4 {The knight has to go away
from the main battle field.} Rf7 {Now after} (45... Rxc4 46. bxc4 {White
obtains counterplay thanks to his passed c4 pawn.}) 46. Ke3 (46. Kg3 h5 47. Nc5
h4+ 48. Kh2 Kg4 $19) 46... Ng2+ 47. Ke2 Nf4+ 48. Ke3 h5 49. Rc5 Ng2+ 50. Ke2 h4
$1 {Well-judged! With his a4 knight out of play, White is not able to stop
this pawn.} 51. Rxe5+ Kg4 52. Re8 (52. Rxa5 h3 53. f3+ Kh4 54. Kf2 (54. Ra8 h2
55. Kf2 Kh3 $19) 54... Nf4 55. Ra8 Rh7 56. Kg1 Rg7+ 57. Kh1 Nd3) (52. f3+ Rxf3
{(the simplest)} 53. Rg5+ Kxg5 54. Kxf3 Ne1+ 55. Kf2 Nd3+ 56. Kf3 Ne5+ ({
better than} 56... Nc1) 57. Kg2 Kg4 58. Nc5 h3+ 59. Kh2 Kh4 $19 {/\Ng4+,Kg3})
52... Nf4+ 53. Ke3 h3 54. f3+ Kh4 (54... Kh4 55. Rh8+ Nh5 56. Kf2 Rg7 $19) 0-1

[Event "Tashkent FIDE GP 2nd"]
[Site "Tashkent"]
[Date "2012.11.23"]
[Round "2"]
[White "Wang, Hao"]
[Black "Dominguez Perez, Leinier"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2737"]
[BlackElo "2726"]
[Annotator "Krasenkow,M"]
[PlyCount "75"]
[EventDate "2012.11.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UZB"]
[EventCategory "20"]
[SourceTitle "CBM 152"]
[Source "ChessBase"]
[SourceDate "2013.01.15"]
[SourceVersion "1"]
[SourceVersionDate "2013.01.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 c6 {A simple reply to White's system of development, instead of the main
theoretical move} (8... Na6) 9. e4 b5 (9... Be6 10. Qd3 b5 $5 (10... Na6 11.
Be2 Qb6 12. O-O Rad8 13. h3 Nh5 14. Be3 $14 {1-0 Petrosian,T-Kasparian,G/
Tbilisi 1945/EXT 1999 (46)}) 11. Be2 Bc4 12. Qc2 Bxe2 13. Nxe2 Qb6 14. O-O Nbd7
15. Rac1 Rac8 16. Be3 $14 {0-1 Petkov,V (2520)-Bogosavljevic,B (2491)/Vrnjacka
Banja 2007/EXT 2012 (62)}) ({Bishop moves lead to positions which can also
arise from the Russian System (5.Qb3):} 9... Bg4 10. Be2 Nfd7 11. Rd1 Qb6 (
11... Nb6 12. Qd3 Bxf3 13. Qxf3 Bxd4 14. h4 $36) (11... Bxf3 12. Bxf3 e5 13.
dxe5 Bxe5 14. Bxe5 Nxe5 15. Rxd8 Nxc4 16. Rxf8+ Kxf8 17. Be2 Nb6 18. Kd2 N8d7
19. f4 f6 20. Rd1 Ke7 21. Ke3 $14 {1-0 Dydyshko,V (2485)-Dorfman,J (2520)/
Minsk 1986/EXT 1997 (58)}) 12. Bc1 (12. O-O Bxf3 13. Bxf3 e5 14. Be3 exd4 15.
Bxd4 Ne5 $11 {1/2 Gheorghiu,F-Hort,V/Skopje 1968/MCD (21)}) 12... Qa5 (12... e5
13. d5 Nf6 14. O-O $14) 13. b4 Qc7 14. O-O Nb6 15. Qb3 Be6 16. Qb1 Bc4 17. Bxc4
Nxc4 18. a4 $14 {1/2 Romanov,E (2616)-Timofeev,A (2600)/Khanty-Mansiysk RUS
2012/The Week in Chess 942 (45)}) (9... Qb6 $5 {needs further tests:} 10. Rb1
Be6 11. Qa4 c5 12. d5 Bd7 13. Qd1 e6 14. Bc4 exd5 15. Bxd5 Bb5 16. Qb3 Ba6 17.
Bc4 Nc6 $11 {1-0 Halkias,S (2570)-Aabling Thomsen,J (2331)/Helsingor DEN 2012/
The Week in Chess 926 (59)}) (9... Qa5 $1 {is quite satisfactory for Black:}
10. b4 (10. Bd2 b5 11. Qd3 b4 12. Nd1 c5 13. d5 e6 14. Ne3 exd5 15. exd5 Re8
16. Be2 Ng4 $36 {0-1 Rasmussen,A (2541)-Sutovsky,E (2696)/Porto Carras 2011/
EXT 2012 (36)}) 10... Qd8 11. a4 (11. Be2 a5 12. bxa5 Qxa5 13. O-O b5 14. Qd3
b4 15. Nb1 c5 $36 {0-1 Gonzalez,B (2413)-Swiercz,D (2594)/Istanbul 2012/CBM
151 (61)}) 11... Bg4 $1 (11... Be6 $143 12. Qd3 Na6 13. Rb1 Nh5 14. Be3 f5 15.
Ng5 fxe4 16. Qd2 Bd5 17. Nxd5 Qxd5 18. Qc2 Kh8 19. Bc4 Qf5 20. h3 Nf4 21. Bxf4
Qxf4 22. Ne6 $16 {1/2 Sokolov,I (2655)-Howell,D (2614)/London 2009/CBM 132 (57)
}) 12. Be2 Nfd7 13. Rd1 Bxf3 {1/2 Krasenkow,M (2661)-Gelfand,B (2692)/Lvov
2000/CBM 077}) 10. Qd3 (10. Qb3 Qa5 $1 (10... Be6 11. Qc2 Qa5 12. Bd2 b4 13.
Nd1 Qb6 14. Ne3 b3 15. axb3 Bxb3 16. Qb1 $14 {0-1 Sokolov,I (2706)-McShane,L 
(2651)/France 2004/EXT 2005 (84)}) 11. e5 $5 (11. Bd2 b4 $1 12. Na4 Nxe4 13.
Bxb4 Qc7 14. Bd3 (14. Be2 Be6 15. Qc2 Bd5 16. O-O a5 17. Ba3 Na6 $11 {1/2
Milanovic,D (2516)-Sarenac,I (2327)/Obrenovac SRB 2011/The Week in Chess 891 
(60)}) 14... Be6 15. Qc2 (15. Qd1 Bd5 16. O-O c5 $1 17. Nxc5 Nxc5 18. Bxc5 Nc6
19. Re1 Bxf3 20. Qxf3 Nxd4 $11 {1/2 Sokolov,I (2690)-Svidler,P (2733)/Baden
Baden 2004/CBM 143/[Avrukh,B] (25)}) 15... Nd6 16. O-O Bd5 17. Ne5 Nd7 18. Nc3
Qb7 $11 {1/2 Esen,B (2455)-Atakisi,U (2392)/Ankara 2007/CBM 118 ext (52)})
11... Be6 12. Qc2 Nd5 13. Bd2 Nb4 (13... Nxc3 14. Bd3 Na6 15. O-O Ne2+ 16. Bxe2
Qb6 17. a4 $14 {1-0 Jankovic,A (2553)-Nedilko,V (2392)/Plovdiv 2012/CBM 148/
[Let's Check Training] (29)}) 14. Qc1 Qb6 15. a3 Nd5 16. h4 h5 17. Ne4 Nd7 18.
Be2 Bf5 19. Nc3 Nxc3 20. bxc3 c5 $11 {1-0 Jankovic,A (2564)-Sarkar,J (2411)/
Philadelphia USA 2012/The Week in Chess 921 (46)}) 10... Qa5 (10... Qb6 11. Rc1
Be6 12. Be2 Bc4 13. Qc2 Bxe2 14. Qxe2 a5 15. O-O $14 {1-0 Turov,M (2645)-Schut,
L (2290)/Wijk aan Zee 2012/CBM 147 (67)}) 11. Be2 (11. Nd2 Be6 12. Be2 b4 13.
Nd1 Rd8 14. Be3 Nbd7 $13 {1/2 Horvath,C (2558)-Dragojlovic,A (2432)/Val
Thorens 2007/EXT 2010 (32)}) 11... c5 ({After} 11... b4 12. Nd1 {we see the
drawback of the position of Black's bishop on d7: it can't go directly to a6.
But the text move underlines its merit: the b5 pawn is protected.}) 12. O-O b4
(12... c4 $6 13. Qc2 b4 14. Nd1) 13. Nd1 $146 {[%mdl 8]} (13. Nd5 $5 Nxd5 14.
exd5 Bf5 $6 (14... cxd4 15. Nxd4 Qxd5 16. Rfd1 $44 {[%cal Ge2f3] B.Avrukh}) 15.
Qe3 (15. Qd2 Nd7 16. Ne5 $14 {B.Avrukh}) 15... Nd7 16. Rfd1 Rac8 17. Ne5 cxd4
18. Rxd4 Nxe5 19. Bxe5 Bxe5 20. Qxe5 Rfe8 21. Qe3 Qb6 22. Rad1 a5 $11 {0-1
Cori Tello,D (2361)-Liascovich,L (2454)/Buenos Aires 2009/CBM 132 Extra (37)})
13... cxd4 14. Nxd4 Rd8 ({In the event of} 14... Nc6 {White retains some
pressure:} 15. Nb3 Qb6 16. Ne3 (16. Be3 $143 Qc7 17. Rc1 Rfd8 {[%csl Rd1]})
16... Rfd8 17. Nc4 $14 {[%csl Gc4]}) 15. Ne3 $6 {White had a good chance to
stop Black's development:} (15. Rc1 $1 {Black probably had an only defence:}
Qxa2 $1 (15... e5 16. Nb3 Bb5 17. Nxa5 Bxd3 18. Bxd3 exf4 19. e5 $1 Rxd3 20.
Rc8+ $16) 16. Bc7 $1 Rc8 17. Ne3 Qxb2 $1 18. e5 Ne8 19. Nc4 Qxc1 20. Rxc1 Rxc7
21. Bf3 Nc6 22. e6 $1 fxe6 23. Bxc6 Bxc6 24. Nxe6 Rd7 25. Qh3 Bf6 {, and he
should hold on.}) 15... Ba4 $6 (15... Nh5 $1 16. Bxh5 Qxh5 {, and now White
must fight for equality.}) 16. Nb3 Bxb3 17. axb3 Rxd3 18. Rxa5 Nc6 19. Ra6 Rd2
20. Bc4 Nd4 (20... e5 $142 21. Bg3 Nd4) 21. Nf5 Ne2+ 22. Bxe2 Rxe2 23. Nxe7+
Kh8 24. f3 Nh5 25. Bd6 Rxb2 26. g4 Bd4+ 27. Kh1 Ng7 28. Nc6 Bc3 29. Rfa1 (29.
Nxb4 Bxb4 30. Bxb4 Rxb3 31. Bd6 Ne6 32. Kg2 {was the only way to keep tension
in the position. After the text move a draw is inevitable.}) 29... Rxb3 30.
Rxa7 Rxa7 31. Rxa7 Ne6 $1 32. Rxf7 Rb1+ 33. Kg2 b3 34. Rb7 b2 35. Rb8+ Kg7 36.
Rb7+ Kh8 (36... Kh6 $2 37. f4 Rd1 38. Ne7 {is too dangerous for Black.}) 37.
Rb8+ Kg7 38. Rb7+ 1/2-1/2

[Event "Gashimov Memorial 5th"]
[Site "Shamkir"]
[Date "2018.04.27"]
[Round "8"]
[White "Mamedyarov, Shakhriyar"]
[Black "Navara, David"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2814"]
[BlackElo "2745"]
[Annotator "Krasenkow,M"]
[PlyCount "83"]
[EventDate "2018.04.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "AZE"]
[EventCategory "21"]
[SourceTitle "CBM 184"]
[Source "ChessBase"]
[SourceDate "2018.05.16"]
[SourceVersion "1"]
[SourceVersionDate "2018.05.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 dxc4 6. e4 c5 7. d5 b5 8. h5 O-O
9. hxg6 fxg6 10. d6 $6 $146 {A dubious novelty in one of the main theoretical
lines of the new 5.h4 system.} (10. Nxb5 {is good for Black, too:} Qa5+ 11. Nc3
Nxe4 12. Bd2 Nxc3 13. bxc3 Bxc3 (13... Nd7 $5 14. Bxc4 $140 Nb6 $132) 14. Bxc4
Ba6 15. Qe2 Bxc4 $2 (15... Rf7 $13) 16. Qe6+ Rf7 17. Rxh7 Bxd2+ 18. Nxd2 Kxh7
19. Qxf7+ Kh8 20. Qf8+ Kh7 21. Qxe7+ Kg8 22. Qe8+ Kg7 23. Rb1 $18 {1-0 (35) Li
Chao2 (2732)-Xiong,J (2634) chess.com INT 2018}) (10. e5 Ng4 11. d6 {is the
main continuation leading to a crazy position. Here are some practical
examples although, of course, it's beyond human abilities to play this
position without errors:} e6 $1 (11... Bb7 12. Bg5 Nc6 13. dxe7 Qxd1+ 14. Rxd1
Rf5 15. Nxb5 $18 {1-0 (43) Gareyev,T (2674)-Robson,R (2620) Saint Louis 2013})
12. Rxh7 $1 {A nice sacrifice, which Black is not obliged to accept, though.}
Rf5 $1 (12... Kxh7 $6 13. Ng5+ Kg8 14. Qxg4 Rf5 15. Be3 (15. f4 Rxg5 16. Qxg5
Qxg5 17. fxg5 Bxe5 18. Nxb5 {1/2 (40) Ftacnik,L (2558)-Danin,A (2564) Czechia
2014} Nc6 19. Bxc4 Rb8 $13) (15. Qh4 $5) 15... Nc6 16. Qh4 Nxe5 17. O-O-O Bd7
18. Nce4 Qa5 19. Qh7+ Kf8 20. Nxc5 Rxg5 21. Bxg5 Qxa2 22. Rd4 $18 {1-0 (31)
Vitiugov,N (2719)-Ragger,M (2680) Tromsoe 2013}) (12... Nc6 13. Rxg7+ Kxg7 14.
Bg5 Qd7 (14... Qa5 15. d7 Bb7 16. Qd6 b4 17. Ne4 b3+ {1/2 (56) Pashikian,A 
(2603)-Kantans,T (2473) Minsk 2017} 18. Bd2 $1 Qxa2 19. Rd1 $18 {->}) (14...
Qb6 15. d7 Bb7 16. Qd2 Nd4 17. O-O-O a6 18. Nxd4 cxd4 19. Qxd4 Qxd4 20. Rxd4
Nxe5 21. d8=Q Raxd8 22. Rxd8 Rxf2 23. Be2 $16 {1-0 (37) Costachi,M (2425)
-Kantans,T (2524) Antalya 2017}) 15. Ne4 Ncxe5 16. Nxe5 Nxe5 17. Nxc5 Qc6 18.
Qd4 Rf5 19. Be3 Kg8 20. O-O-O $16 {-> 1/2 (39) Morozevich,A (2739)-Ponomariov,
R (2756) Riga 2013}) 13. Rh3 Nc6 $1 (13... Bb7 14. Nxb5 Qa5+ 15. Nc3 Nxe5 16.
Nxe5 Rxe5+ 17. Be3 Nd7 18. Rg3 Be4 19. Bxc4 $16 {1-0 (32) Vidit,S (2686)-Bok,B
(2594) Douglas 2016}) 14. Nxb5 (14. Ne4 Ngxe5 (14... Bb7 $5) 15. Nfg5 Nd4 16.
g4 Rf8 17. f4 Nf7 18. Qd2 Nxg5 19. Nxg5 Qxd6 20. Qh2 Qe7 21. Be3 e5 22. Bg2 {
1-0 (28) Zhou,W (2646)-Li,C (2748) Zaozhuang 2015} Rd8 23. Bxa8 Bxg4 $13) 14...
Ngxe5 15. Nxe5 Rxe5+ 16. Be3 Nd4 17. Bxc4 Nxb5 18. Qd3 Nd4 19. Qxg6 Qf6 20.
Qe8+ Qf8 21. Qg6 Qf6 22. Qe8+ Qf8 23. Qg6 Qf6 {1/2 (23) Georgiadis,N (2473)
-Ragger,M (2700) Austria 2017}) 10... exd6 11. Nxb5 (11. a4 $5) 11... d5 $1 {
[%mdl 128] Black makes use of the fact that this pawn can't be taken and
creates an attack in the centre.} 12. Nc3 (12. exd5 $4 Qe8+) 12... Re8 13. Be3
d4 $2 {[%mdl 16384] But now David Navara neglects development and lets his
initiative slip.} (13... Nc6 $142 $1 14. exd5 (14. Nxd5 Nxe4 15. Bxc4 Be6)
14... Nd4 $17 {[%csl Re1]}) 14. e5 (14. Bxc4+ $5 Be6 (14... Kh8 $2 15. Ng5) (
14... Kf8 15. e5) 15. Bxe6+ Rxe6 16. Ng5 $36) 14... Ba6 $6 {Of course, it was
impossible to calculate everything over the board. Black's choice is not
optimal.} (14... dxe3 $142 {, e.g.} 15. Bxc4+ Kh8 16. Qxd8 Rxd8 17. exf6 (17.
Ng5 Rd7) 17... Bxf6 18. Ne4 exf2+ 19. Kxf2 Bd4+ {and Black holds on.}) 15. Qa4
Qd7 16. Bxc4+ Bxc4 17. Qxc4+ Qe6 18. Qxe6+ Rxe6 19. exf6 Bxf6 20. Nd5 Bd8 21.
O-O-O dxe3 22. Nxe3 $16 {The position has calmed down. As a result of
complications, White has got a better endgame, due to the weakness of Black's
c5 pawn.} Nc6 23. Rd7 Be7 $2 {[%mdl 8192] A blunder losing a pawn.} (23... Re7
$142 {but after} 24. Rhd1 {Black's position is very difficult.}) 24. Rxh7 $1
Rb8 (24... Kxh7 25. Ng5+) (24... Rxe3 25. fxe3 Kxh7 26. Rc7 $18) 25. Rc7 $6 {
Starting from now, White plays inaccurately.} (25. Nd5 $142 $1 $18) 25... Bf6
26. Rb7 Nb4 27. Rxb8+ Kxh7 28. Rb7+ Kg8 29. Rxa7 Nd3+ 30. Kb1 (30. Kc2 $1 Nxf2
31. Nd5 Re2+ 32. Kb3 Bxb2 33. a4) 30... Bxb2 31. a4 Bd4 32. Kc2 Nb4+ (32...
Nxf2 33. Nc4 $16) 33. Kd2 Bxe3+ 34. fxe3 Nd5 35. a5 c4 $2 {This pawn is going
nowhere.} (35... Nxe3 $142 {keeping some drawing chances.}) 36. Rd7 $1 {
Ousting Black's knight from the central square.} Nf6 (36... Nxe3 37. Nd4 Nf1+ (
37... Re8 38. a6) 38. Kc3 Ra6 39. Kb4 $18) (36... c3+ 37. Kc2 Nxe3+ 38. Kxc3
Nxg2 39. Nd4 {and Black's knight can't come back to the queenside to give
itself up for White's a-pawn.}) 37. Rd8+ Kg7 38. Kc3 Rc6 (38... Ra6 39. Kb4) (
38... Rxe3+ 39. Kxc4 {etc.}) 39. Ne5 Ne4+ 40. Kd4 c3 41. Kxe4 Rc4+ 42. Kf3 (42.
Kf3 c2 43. Nd3 $18) 1-0

[Event "EU-ch 11th"]
[Site "Rijeka"]
[Date "2010.03.09"]
[Round "4"]
[White "Nikolov, Momchil"]
[Black "Sutovsky, Emil"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2550"]
[BlackElo "2650"]
[Annotator "Krasenkow,M"]
[PlyCount "85"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CBM 136"]
[Source "ChessBase"]
[SourceDate "2010.05.18"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8.
Nf3 Bg4 9. Be2 c5 {This reply is more obvious here than after 8.Rc1.} 10. d5 e6
{GM Emil Sutovsky prefers to attack the d5-pawn at once, without the exchange
on c3.} (10... Bxc3+ 11. bxc3 Bxf3 (11... Qa5 12. Qd2 $5 Nd7 13. O-O) 12. Bxf3
Qd6 13. Rb1 (13. O-O Nd7 14. c4 Rfd8 15. g3 Qf6 16. Bg2 e5 17. Bh3 Nf8 18. Qe2
Rd6 19. Kh1 Rb6 $14 {1/2 Marholev,D (2413)-Okhotnik,V (2447)/Fouesnant 2009/
EXT 2010 (58)}) 13... b6 14. O-O Nd7 15. g3 h5 16. Bg2 e5 17. dxe6 Qxe6 18. f4
Rad8 19. Qe2 $6 (19. Qa4 $16) 19... Nf6 20. Rbd1 Nd5 21. Qd2 Ne7 22. Qxd8 Rxd8
23. Rxd8+ Kg7 $13 {0-1 Rychagov,A (2528)-Timofeev,A (2637)/Moscow 2007/CBM 122
(56)}) (10... Nd7 11. O-O Qc7 12. Rc1 $5) 11. O-O exd5 12. exd5 Qd6 (12... Nd7
$5 13. Rc1 Qb6 14. Re1 Rfe8 15. Ng5 Bxe2 16. Rxe2 Nf6 17. Rxe8+ Rxe8 18. Qa4
Rd8 19. b3 Rxd5 20. Bxf6 Qxf6 21. Qe8+ Bf8 22. Qxf8+ Kxf8 23. Nxh7+ Kg7 24.
Nxf6 Kxf6 $11 {1/2 Dreev,A (2670)-Gulko,B (2552)/Barcelona 2008/CBM 127 (40)})
13. Qb3 Bxc3 14. bxc3 b6 15. Rfe1 Bxf3 16. Bxf3 Nd7 {A typical position.
White's bishop is quite passive but he has a strong d5-pawn (and the black
queen is not its best blockader), and Black's queenside is vulnerable.
Therefore Black will have to display accuracy.} 17. a4 {Pawns don't move back!
It was probably better to leave this square for the queen.} (17. Qa4 {was
premature due to} Ne5 $1 18. Be2 Qxd5 19. Rad1 Qc6 20. Bb5 Qf6 21. Qe4 a6 22.
Ba4 b5 23. Qxe5 Qxe5 24. Rxe5 bxa4 25. Rxc5 Rfd8 $11) ({but} 17. Rad1 $142 $5
Ne5 (17... a6 18. Re6 $1) (17... Rfe8 18. Rxe8+ Rxe8 19. Qa4 $36) 18. Be2 a6
19. c4 $14 {keeping Qb3-a4 as an option.}) 17... Ne5 18. Be2 Rae8 19. Bb5 $6 (
19. a5 $14 {was logical.}) 19... Ng4 $1 20. g3 Re5 21. h3 Nf6 (21... Ne3 $5 22.
Rxe3 (22. c4 Nf5) 22... Rxe3 23. fxe3 Qxg3+ 24. Kf1 $1 Qf3+ 25. Kg1 $1 Qg3+ $11
) 22. c4 Ne4 {[%csl Ge4] Black's active knight now facilitates his defence.}
23. Qb2 Re7 24. Ra3 f5 25. Rae3 Ref7 26. h4 h6 27. Kg2 Rf6 28. f4 g5 $5 {
In fact, the position simplifies after this break.} 29. hxg5 hxg5 30. fxg5 Nxg5
31. Qe5 Ne4 32. Qxd6 Rxd6 33. Rf1 Kg7 34. Rf4 Rh6 35. Bd7 Nd6 36. Re7+ $6 (36.
g4 $11) 36... Kf6 37. Re6+ Kg5 38. Re7 (38. Rxh6 Kxh6 39. Kf3 $11) 38... Rfh8
39. Re5 (39. Re6 $11) 39... Rh1 40. Rexf5+ Nxf5 41. Rxf5+ Kg6 42. Re5 R8h2+ 43.
Kf3 {It is now Black who can try for a win but without real chances as White
sets up his bishop on b5 and creates an unassailable fortress.} 1/2-1/2

[Event "Khanty-Mansiysk FIDE GP"]
[Site "Khanty-Mansiysk"]
[Date "2015.05.16"]
[Round "3"]
[White "Jobava, Baadur"]
[Black "Gelfand, Boris"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2699"]
[BlackElo "2744"]
[Annotator "Krasenkow,M"]
[PlyCount "80"]
[EventDate "2015.05.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "21"]
[SourceTitle "CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. d4 {[%emt 0:00:09]} Nf6 {[%emt 0:00:06]} 2. c4 {[%emt 0:00:08]} g6 {[%emt 0:
00:02]} 3. Nc3 {[%emt 0:00:18]} d5 {[%emt 0:00:03]} 4. Nf3 {[%emt 0:00:32]} Bg7
{[%emt 0:00:14]} 5. Qa4+ {[%emt 0:00:31]} Bd7 {[%emt 0:02:36]} 6. Qa3 $146 {
[%emt 0:00:13][%mdl 512] According to the database, this continuation is
completely new! However, its value is uncertain.} (6. Qb3 dxc4 7. Qxc4 {
has been seen in thousands of games.}) 6... dxc4 {[%emt 0:15:28]} 7. e4 {
[%emt 0:00:09]} b5 {[%emt 0:00:04] A principled reaction. Black takes the pawn,
however, his knight will be pushed to the edge of the board. Is there
sufficient compensation? I don't think so.} 8. e5 {[%emt 0:00:08]} Ng4 {
[%emt 0:08:55]} (8... Nh5 {is possible, too. In both cases Black plans ...
a7-a5 threatening ...b5-b4.}) 9. h3 {[%emt 0:01:59]} Nh6 {[%emt 0:05:28]} 10.
b3 {[%emt 0:01:14]} a5 {[%emt 0:04:38]} 11. Qb2 {[%emt 0:00:56]} b4 {[%emt 0:
03:12]} 12. Ne4 {[%emt 0:00:07]} c3 {[%emt 0:10:59] Such a pawn wedge can be
harmless when the opponent seizes the centre. But here Black, with his
powerful light-squared bishop on c6, will be in control of that part of the
board, too.} 13. Qc2 {[%emt 0:00:15]} O-O {[%emt 0:01:45]} 14. Bc4 {[%emt 0:01:
51]} Bc6 {[%emt 0:02:15]} 15. h4 {[%emt 0:03:51]} Nf5 {[%emt 0:03:55]} 16. Qd3
{[%emt 0:00:54]} Nd7 $6 {[%emt 0:12:54] Black will have to sacrifice a piece
for a couple of pawns to parry White's attack and clear the way for his pawns.
It is important to find a good version.} (16... a4 $1 {was probably more
energetic, e.g.} 17. h5 (17. bxa4 Nd7 $1 18. h5 Nb6 19. Bb3 Bxa4) (17. g4 axb3
18. Bxb3 (18. gxf5 b2 19. Bxb2 cxb2 20. Rb1 Ra3 21. Bb3 Nd7 {[%cal Yd7e5]})
18... Nxd4 $1 19. Nxd4 Ra5 $3 20. f4 Bxe5 21. fxe5 Rxe5 22. Kf2 Bxe4 23. Qe3
Bxh1 24. Qxe5 Nd7 $17 {[%cal Yd7f6]}) 17... axb3 18. hxg6 hxg6 19. Bxb3 Bd5 $1
20. Bxd5 Qxd5 21. g4 Nd6 $1 22. exd6 exd6 23. O-O Rxa2 {, and Black achieves
his aim.}) 17. h5 {[%emt 0:02:20]} Nxe5 {[%emt 0:08:18] This version is less
favourable for Black.} 18. dxe5 {[%emt 0:05:15]} Qxd3 {[%emt 0:01:58]} 19. Bxd3
{[%emt 0:00:06]} a4 {[%emt 0:07:01]} 20. hxg6 {[%emt 0:07:16]} hxg6 {[%emt 0:
02:44]} 21. bxa4 {[%emt 0:12:48]} Rfd8 {[%emt 0:04:35]} 22. Bc2 {[%emt 0:01:51]
} Bxa4 {[%emt 0:00:27]} 23. Bxa4 {[%emt 0:00:11]} Rxa4 {[%emt 0:00:03] Here
his strong pawns can only give him sufficient drawing chances.} 24. O-O $6 {
[%emt 0:20:18]} (24. Nc5 $142 Raa8 25. Nb3 {[%cal Rg2g4] but even here Black
creates a big mess by means of} f6 $1 26. g4 fxe5 $1 27. gxf5 e4 {[%cal Re4f3,
Rc3c2] , and his counterplay should be enough for a draw, e.g.} 28. Nh4 c2 29.
Ke2 Rd3 $1 {etc.}) 24... Ra5 $6 {[%emt 0:02:33]} (24... Rd5 {[%cal Yc7c5] was
even stronger and promised Black good winning chances.}) 25. Rb1 {[%emt 0:05:
46]} c5 {[%emt 0:01:38]} 26. a3 $1 {[%emt 0:10:53]} bxa3 {[%emt 0:03:21]} 27.
Nxc3 {[%emt 0:00:30]} Nd4 {[%emt 0:00:19]} 28. Bf4 {[%emt 0:07:12]} a2 {
[%emt 0:03:19]} 29. Ra1 {[%emt 0:00:04]} Rda8 {[%emt 0:03:19]} 30. Rfd1 {
[%emt 0:00:12]} g5 $5 {[%emt 0:03:14]} (30... f6 31. Nxd4 cxd4 32. Ne4 fxe5 33.
Bd2 $13) 31. Nxg5 {[%emt 0:26:49]} f6 {[%emt 0:00:05]} 32. Nge4 {[%emt 0:01:21]
} Nb3 {[%emt 0:00:29]} 33. Rxa2 {[%emt 0:00:55]} Rxa2 {[%emt 0:00:03]} 34. Nxa2
{[%emt 0:00:04]} Rxa2 {[%emt 0:00:17] The material balance has been restored,
and the game quickly ends in a draw.} 35. exf6 {[%emt 0:00:50]} Bxf6 {[%emt 0:
00:22]} 36. Rd7 {[%emt 0:01:25]} Kf7 {[%emt 0:02:24]} 37. Rc7 {[%emt 0:00:11]}
Nd4 {[%emt 0:00:13]} 38. Bg3 {[%emt 0:00:18]} (38. Nxf6 $142 Ne2+ 39. Kh2 Nxf4
40. Ne4 $11) 38... Ne2+ {[%emt 0:00:19]} 39. Kh2 {[%emt 0:00:02]} Nxg3 {
[%emt 0:00:14]} 40. fxg3 {[%emt 0:00:00]} (40. Nxf6 Nf1+ 41. Kg1 Ra1 42. Nd7
$11) 40... Bd4 $15 {[%emt 0:00:00] Now Black could have played on, at least
with chances to get the endgame "R+B vs R".} ({It is essential that} 40... Bd4
41. Nxc5 $4 {loses to} Ra5) 1/2-1/2

[Event "Khanty-Mansiysk FIDE GP"]
[Site "Khanty-Mansiysk"]
[Date "2015.05.19"]
[Round "5"]
[White "Nakamura, Hikaru"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2799"]
[BlackElo "2734"]
[Annotator "Krasenkow,M"]
[PlyCount "61"]
[EventDate "2015.05.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "21"]
[SourceTitle "CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. d4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:08]} 2. c4 {[%emt 0:00:06]} g6 {[%emt 0:
00:05]} 3. Nc3 {[%emt 0:00:07]} d5 {[%emt 0:00:03]} 4. Nf3 {[%emt 0:00:06]} Bg7
{[%emt 0:00:06]} 5. h4 {[%emt 0:00:04] A popular continuation. Peter Svidler
choses a simple reply.} c6 {[%emt 0:01:57] Alternatives:} (5... h5) (5... h6) (
5... c5) (5... O-O) (5... dxc4) 6. Bg5 {[%emt 0:01:07]} (6. cxd5 cxd5 7. Bf4 {
is also popular.}) 6... h6 $6 {[%emt 0:08:21] Just forcing the exchange.
However, it is hardly worth a tempo. Other moves seen in practice deserve more
attention:} (6... Ne4) (6... O-O) (6... dxc4) 7. Bxf6 {[%emt 0:01:54]} (7. Bf4
Qb6 (7... O-O $5 8. Qc1 {was probably White's idea but I don't see any sense
in it after, say,} h5) 8. c5 Qd8 9. e3 O-O 10. Be2 Bg4 {1/2 (10) Forcen
Esteban,D (2519)-Kovchan,A (2576) La Roda ESP 2015}) 7... Bxf6 {[%emt 0:00:10]}
8. h5 {[%emt 0:00:13]} (8. e3 {is also possible:} Bg7 (8... e6 9. Qc2 Nd7 ({
Svidler's plan with} 9... a6 {should be checked here, too}) 10. O-O-O Bg7 11.
Kb1 O-O 12. cxd5 cxd5 13. Bd3 b6 14. Rc1 a6 15. Ne2 Bb7 16. Qc7 Rb8 17. Qg3 Re8
18. Ne5 $14 {1/2 (62) Hansen,S (2561)-Akesson,R (2462) Pattaya 2013}) 9. Qc2
O-O 10. Bd3 Be6 11. cxd5 cxd5 12. Qb3 Qb6 13. Qxb6 axb6 14. Kd2 Rd8 15. Rhc1
Bg4 16. Nh2 Bf5 17. Bxf5 gxf5 18. f4 Nc6 19. h5 e6 20. g4 $14 {1-0 (52) Najer,
E (2626)-Wan,Y (2494) China 2013}) (8. cxd5 cxd5 9. Qb3 {is not too promising:}
e6 10. e4 O-O 11. O-O-O Nc6 12. Kb1 Bg7 13. h5 g5 14. Bb5 Na5 15. Qc2 a6 16.
Bd3 Nc6 $132 {0-1 (48) Shtyrenkov,V (2337)-Alexeev,A (2316) Simferopol 2013})
8... g5 {[%emt 0:00:10]} 9. e3 {[%emt 0:00:11]} e6 {[%emt 0:15:41]} 10. Qc2 {
[%emt 0:02:07]} ({In the following game White didn't play well:} 10. Bd3 Bg7
11. cxd5 $6 cxd5 12. Rc1 Nc6 13. Qb3 Bd7 14. Nb5 $6 O-O 15. g4 $6 a6 16. Nc3 e5
$1 17. Nxe5 Nxe5 18. dxe5 Bxg4 19. f4 d4 $1 $19 {1-0 (44) Abarca Gonzalez,N 
(2267)-Valenzuela Fuentealba,L (2474) Punta Arenas 2014}) 10... a6 {[%emt 0:08:
17]} 11. O-O-O {[%emt 0:04:37]} b5 {[%emt 0:07:03]} 12. c5 {[%emt 0:00:35]
[%mdl 32] A logical attempt to keep the position closed; however, Black
"doesn't conform".} g4 {[%emt 0:00:52]} 13. Nh2 {[%emt 0:11:29]} e5 {[%emt 0:
04:23]} 14. Ne4 $1 {[%emt 0:02:55][%mdl 64] A nice reply to Black's idea.
Generally, we can conclude that 5...c6 and 6...h6 is not the best concept for
Black in this system.} O-O {[%emt 0:00:27]} (14... dxe4 $2 15. dxe5 $18) 15.
Nd6 {[%emt 0:17:18]} Bg7 {[%emt 0:03:50]} 16. Nxc8 {[%emt 0:35:41] It is
sometimes useful to trade a strong knight for a seemingly passive bishop (e.g.
when the latter is an important defender of the opponent's position). However,
this is probably not the case.} (16. Be2 $5 f5 17. f3 {, opening up the
kingside when Black's queenside is completely undeveloped, was a strong
continuation.}) 16... Qxc8 {[%emt 0:00:08]} 17. f3 {[%emt 0:00:43]} g3 {
[%emt 0:15:00]} 18. Ng4 {[%emt 0:00:11]} Qe6 {[%emt 0:00:04]} 19. Nxe5 {
[%emt 0:10:50]} Bxe5 {[%emt 0:00:13]} 20. dxe5 {[%emt 0:00:05]} Qxe5 {[%emt 0:
00:11]} 21. e4 {[%emt 0:01:44]} Nd7 $1 {[%emt 0:03:17] Black has miraculously
completed his development, However, White's advantage (a strong bishop and the
weakness of Black's kingside) is still clear.} 22. exd5 {[%emt 0:03:18]} cxd5 {
[%emt 0:02:23]} 23. Kb1 {[%emt 0:00:10]} Rfc8 {[%emt 0:01:13]} 24. Rh4 $6 {
[%emt 0:04:34] It was not necessary to give up the c5-pawn for nothing when it
was possible to take the h6 or d5-pawn for it:} (24. Qd2 $142 $1 $16) 24...
Rxc5 {[%emt 0:12:12]} 25. Qd2 {[%emt 0:00:09]} Qd6 {[%emt 0:04:55]} 26. Rg4+ {
[%emt 0:03:26]} Kf8 {[%emt 0:01:13]} 27. Qd4 {[%emt 0:02:22]} Nf6 {[%emt 0:10:
26]} 28. Rf4 {[%emt 0:02:23]} Rc6 {[%emt 0:00:14]} 29. Bd3 {[%emt 0:00:32]} Re8
{[%emt 0:00:58]} 30. Rf5 {[%emt 0:00:11]} Re6 {[%emt 0:00:47]} 31. a3 {[%emt 0:
01:24] Black has kept an extra pawn; however, it is extremely difficult to
convert it due to White's active pieces. Therefore the players agreed a draw.}
1/2-1/2

[Event "RUS-ch 69th"]
[Site "Novosibirsk"]
[Date "2016.10.24"]
[Round "8"]
[White "Riazantsev, Alexander"]
[Black "Kokarev, Dmitry"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2651"]
[BlackElo "2636"]
[Annotator "Krasenkow,M"]
[PlyCount "71"]
[EventDate "2016.10.16"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "18"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 {This side system is gaining
popularity!} dxc4 (5... c6 {is more cautious.}) 6. e4 O-O ({The immediate} 6...
c5 7. d5 b5 8. h5 {is quite dangerous for Black, too.}) (6... Bg4 {is another
option.}) 7. Bxc4 (7. e5 Ng4 (7... Nh5 $5 8. Bxc4 c5 9. dxc5 Qxd1+ 10. Kxd1 Nc6
11. e6 Bxe6 12. Bxe6 fxe6 13. Ke2 e5 $132 {0-1 (69) Al Sayed,M (2505)-Hansen,E
(2584) Dubai 2014}) 8. Bf4 c5 9. d5 Nd7 10. Qe2 Qc7 11. Nb5 Qa5+ 12. Nc3 b5 13.
h5 b4 14. Nd1 Nb6 $17 {1/2 (29) Agdestein,S (2595)-Bok,B (2520) Oslo 2013}) (7.
h5 Nxh5 (7... c5 8. hxg6 hxg6 9. d5 b5 10. Bh6 Bxh6 11. Rxh6 b4 12. Na4 $13 {
1/2 (34) Mamedyarov,S (2775)-Kamsky,G (2741) Tromsoe 2013}) 8. Bxc4 Bg4 9. Be3
e5 (9... Nc6 $5) 10. dxe5 Nc6 11. Be2 (11. Qd5 $6 Bxf3 12. gxf3 Nxe5 13. Be2
Qf6 14. O-O-O Nf4 $17 {1/2 (53) Morozevich,A (2739)-Popov,I (2656) Moscow 2013}
) 11... Nxe5 12. Qxd8 Raxd8 13. Nxe5 Bxe2 14. Nxg6 hxg6 15. Kxe2 $11) 7... c5 (
7... Bg4 8. e5 Nfd7 9. h5 $1 Nb6 10. Bb3 c5 11. hxg6 hxg6 12. Rh4 cxd4 13. Rxg4
dxc3 {1-0 (30) Fridman,D (2627)-Hansen,E (2584) Rabat 2014} 14. Bxf7+ $1 Kxf7
15. Qc2 $18) 8. d5 (8. e5 $6 Ng4 9. h5 cxd4 10. hxg6 hxg6 11. e6 Bxe6 12. Bxe6
dxc3 13. Bxf7+ Kxf7 14. Ng5+ Ke8 15. Qxg4 cxb2 16. Bxb2 Bxb2 17. Rd1 Qa5+ 18.
Kf1 Qf5 $19 {0-1 (23) Pogosyan,G (2330)-Popov,I (2650) Voronezh 2014}) 8... b5
$1 {Black must play energetically, otherwise White is simply better.} 9. Bxb5 (
9. Bd3 $6 c4 10. Bc2 b4 11. Ne2 e6 12. Nf4 exd5 13. e5 Ng4 14. Qxd5 Qb6 15. O-O
Bb7 16. Qxc4 Ba6 $17 {0-1 (45) Fridman,D (2627)-Bok,B (2591) Rosmalen 2014})
9... Nxe4 10. Nxe4 Qa5+ 11. Nc3 Bxc3+ 12. bxc3 Qxb5 {This typical combination
usually guarantees Black an excellent position but here White continues his
kingside activity:} 13. h5 Qc4 (13... Bf5 14. hxg6 Bxg6 15. Ne5 Nd7 16. c4 Qa5+
17. Bd2 Qc7 18. Nxg6 (18. Nxd7 Qxd7 19. O-O Rfe8 {1/2 (19) Altini,N (2394)
-Brunello,S (2568) Boscotrecase 2014}) 18... fxg6 19. O-O $14) (13... Ba6 14.
Ne5 $5 (14. Be3 Rd8 15. hxg6 hxg6 16. Nd2 Qd3 17. Rc1 Nd7 18. c4 Ne5 $132 {
1-0 (39) Thorfinnsson,B (2478)-Gislason,G (2321) Reykjavik 2013})) 14. hxg6
fxg6 15. Rh4 $1 Qxc3+ 16. Bd2 Qd3 17. Bh6 (17. Bg5 {is a good alternative; it
is not easy for Black to find a good way to equality:} Qxd1+ 18. Rxd1 e6 (18...
Rf5 $5 19. Bxe7 Nd7 {may be more appropriate}) 19. d6 Nd7 20. Be3 Rf5 21. Ng5
Nf6 22. Rc1 Rd5 23. Rxc5 Rxd6 24. Bd4 $44 {1-0 (54) Akobian,V (2632)-Chirila,I
(2521) Dallas 2014}) 17... Qxd1+ 18. Rxd1 Re8 (18... Rf5 19. d6 $5) 19. Ng5 Nd7
20. Ne6 Rb8 21. Nc7 Rd8 22. Ne6 Re8 23. Nc7 Rd8 24. Re4 Rb7 25. d6 exd6 26. Ne8
(26. Ne6 $5 Re8 27. Nxc5 Rxe4+ 28. Nxe4 Ne5 29. Nxd6 $14) 26... Rb4 27. Re3 (
27. Re7 {is parried by} Rh4 28. Bg7 Rh1+ 29. Kd2 Rxd1+ 30. Kxd1 Bb7 31. Bf6 Kf8
) 27... Bb7 $2 (27... Ba6 $1 {, and Black holds on:} 28. Nxd6 (28. Rxd6 Rb1+
29. Kd2 Rb6 30. Nf6+ Kf7 31. Rxd7+ Rxd7+ 32. Nxd7 Rd6+) 28... Nf6 29. Bg5 Rf8
30. Re7 Ng4 $1 31. Rxa7 (31. f3 Rb2) 31... Ra4 32. f3 Rxa2 $1 33. Rd2 Ra1+ $11
{Of course, finding this over the board would be a miracle.}) 28. Rxd6 {
[%cal Gd6d8] The pin along the d-file now proves decisive.} Rd4 (28... Rb1+ 29.
Kd2 Rb6 {now loses a piece after} 30. Nf6+ Kf7 31. Rxd7+ Rxd7+ 32. Nxd7 Rd6+
33. Rd3) 29. Bg5 $1 Rxd6 (29... Rc8 30. Rxd7 Rxd7 31. Nf6+ $18) 30. Nxd6 Rb8
31. Re7 {[%mdl 128]} Bc6 32. Bh6 Kh8 33. Nf7+ Kg8 34. Ng5 $1 Ne5 35. Rxe5 Rb1+
36. Kd2 1-0

[Event "FIDE World Cup"]
[Site "Tbilisi"]
[Date "2017.09.04"]
[Round "1.2"]
[White "El Gindy, Essam"]
[Black "Grischuk, Alexander"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2455"]
[BlackElo "2783"]
[Annotator "Krasenkow,M"]
[PlyCount "120"]
[EventDate "2017.09.03"]
[EventType "k.o."]
[EventRounds "7"]
[EventCountry "GEO"]
[SourceTitle "CBM 181"]
[Source "ChessBase"]
[SourceDate "2017.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2017.11.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 c6 {A quiet continuation, in
order to avoid complications.} 6. cxd5 cxd5 7. Bf4 Nc6 8. e3 O-O 9. Ne5 {
The most aggressive move in this position.} (9. Qb3 {is the main alternative.})
9... Nxe5 (9... Qb6 $5 10. Qb3 (10. Qd2 Ne4 $5 11. Nxe4 Bxe5 12. Nc3 Bxf4 13.
Nxd5 Bxe3 14. fxe3 Qd8 15. Nc3 Bg4 $13) 10... Qxb3 11. axb3 Nb4 12. Kd2 h5 13.
Nd3 Nc6 14. f3 Bf5 15. Ne5 Rfc8 16. Bb5 {1-0 (49) Morozevich,A (2748)-Giri,A 
(2720) Beijing 2012} Nxe5 17. dxe5 Ne8 $11) 10. Bxe5 Ne4 {The simplest way to
equality.} 11. Bxg7 Kxg7 (11... Nxc3 $5 {may be even more accurate:} 12. bxc3
Kxg7 13. Be2 (13. Bd3 $5 $11 {- game}) 13... Be6 14. Qb3 Qd7 15. O-O Rfc8 16.
Rfc1 Rc7 17. a4 Rac8 18. a5 h6 19. Qb2 Bf5 20. Ra3 h5 21. Rb3 e6 $11 {0-1 (62)
Ftacnik,L (2556)-Mista,A (2589) Germany 2016}) 12. Bd3 (12. Nxe4 {, doubling
Black's pawns is more logical but the position remains equal in any case:} dxe4
13. Bc4 e5 14. dxe5 Qa5+ 15. Qd2 Qxe5 16. h5 Bg4 17. Qd5 Qxd5 18. Bxd5 Bxh5 19.
Bxe4 Rac8 20. b3 Rc7 $11 {1/2 (45) Rychkov,S (2153)-Lahdenmaeki,L (1963)
Lechenicher SchachServer 2012}) 12... Nxc3 13. bxc3 {This backward pawn is a
drawback of White's position but it is not enough for Black to claim an
advantage.} h5 (13... Qa5 14. Qd2 Bd7 $6 15. Rb1 b5 16. h5 $36 {1-0 (39)
Andersen,M (2501)-Kriebel,T (2363) Al Ain 2013}) (13... Qd6 14. Qa4 (14. h5 e5
$5) 14... Bd7 15. Qb4 Qxb4 16. cxb4 a5 17. b5 b6 18. Kd2 Rac8 19. Rac1 {
1/2 (19) Fedorovsky,M (2472)-Heinemann,J (2227) Boeblingen 2016}) 14. Qb3 b6 (
14... Qd6 15. O-O Rb8 16. Rfc1 Bd7 17. Qb4 Qxb4 18. cxb4 Rfc8 $11 {1/2 (27)
Pert,N (2569)-Howell,D (2693) London 2015 CBM 170 [Sagar Shah/CB Website]}) 15.
O-O Bg4 16. f3 Be6 $11 17. Qb2 (17. Rfc1 {[%cal Yc3c4,Ya2a4] is the most
logical plan.}) 17... Rc8 18. Rac1 (18. Rfc1 $5 {[%cal Ya2a4]}) 18... Rc7 19.
e4 dxe4 20. fxe4 Bc4 21. Rcd1 e5 $1 22. Bxc4 Rxc4 23. Qb5 Qc7 24. Rd3 a6 $5 25.
Qd5 (25. Qxa6 exd4 26. cxd4 Rd8 27. Rb3 $11) 25... Re8 26. dxe5 Re7 27. Qd6
Rxe4 28. Qf6+ Kh7 29. Rdf3 $2 {[%mdl 8192] A blunder losing a pawn.} (29. Rd5 {
was still enough to keep the balance:} R4xe5 (29... Kg8 30. Rfd1 Re8 31. Rd7
Qc4 32. Rf1 $132) 30. Rxe5 Qxe5 31. Qxe5 Rxe5 32. Rxf7+ Kh6 33. Rf6 Rb5 34. a4
$11) 29... Qc5+ 30. Kh1 R4xe5 {, and Black gradually converted his advantage:}
31. Rd1 Qc7 32. Rdf1 Re1 33. Qd4 Rxf1+ 34. Rxf1 Re6 35. Qf4 Qxf4 36. Rxf4 Kg7
37. Kh2 Rc6 38. c4 Kf8 39. Kg3 Ke7 40. Rd4 Rd6 41. Re4+ Re6 42. Rd4 Re3+ 43.
Kf2 Ra3 44. Rd2 Rc3 45. Rb2 Rxc4 46. Rxb6 Rc2+ 47. Kf3 Rxa2 48. g3 Ra1 49. Kf2
a5 50. Ra6 a4 51. Ke3 a3 52. Kf2 Kd7 53. Kg2 Kc8 54. Ra7 Kb8 55. Ra4 Kb7 56.
Rb4+ Kc6 57. Rb3 Ra2+ 58. Kh3 f6 59. Rf3 Kb5 60. Rxf6 Rc2 0-1

[Event "EU-ch 11th"]
[Site "Rijeka"]
[Date "2010.03.08"]
[Round "3"]
[White "Melkumyan, Hrant"]
[Black "Riazantsev, Alexander"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2582"]
[BlackElo "2660"]
[Annotator "Krasenkow,M"]
[PlyCount "105"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CBM 136"]
[Source "ChessBase"]
[SourceDate "2010.05.18"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. Nf3 c5 7. Rc1 Nxc3 8.
Bxc3 cxd4 9. Nxd4 O-O 10. e4 $6 {Too aggressive. White dangerously weakens the
dark squares in his camp.} (10. e3 {is a more common move. The whole line is
considered very dull and drawish.}) 10... Nd7 (10... Bd7 11. Qd2 Nc6 12. Nb3
Be6 13. Qe3 Bxb3 14. axb3 Bd4 15. Qg3 Rc8 16. h4 Bxc3+ 17. bxc3 Qa5 18. h5 Qe5
19. Qe3 Rfd8 {1/2 Lautner,J (2126)-Jergler,K (2086)/Bayern 2003/EXT 2006}) (
10... Qb6 $5 11. Nb3 Bxc3+ 12. Rxc3 Nc6 13. Bd3 Be6 14. O-O Rfd8 $15 {1/2
Prielozny,S (2169)-Vrabel,M (1966)/Slovakia 2009/EXT 2010 (42)}) 11. Nb5 Nf6
12. f3 $6 {It was necessary to exchange queens, after which the white king
would be safe in the centre.} (12. Qxd8 Rxd8 13. f3 $11) 12... Bd7 13. Be2 Rc8
(13... a6 $5 14. Nd4 Rc8 15. Qd2 {- see 13...Rc8} (15. O-O $143 Nh5 {[%cal
Yh5f4]} 16. Qd2 $6 e5 17. Nb3 Nf4 $17)) 14. Qd2 (14. Nxa7 $6 Rxc3 $1 15. Rxc3
Qa5 (15... Qb6 $2 16. e5) 16. Qd2 $1 {[]} (16. Qd4 Ra8) 16... Qxa7 17. e5 Be6
18. exf6 Bxf6 $17) (14. e5 $6 Nh5 $1 15. Nxa7 Rxc3 16. Rxc3 Bxe5 $17) (14. O-O
$6 a6 15. Nd4 Nh5) 14... Bxb5 (14... Qb6 $5 15. Bd4 $1 Rxc1+ 16. Qxc1 Qa5+ 17.
Nc3 Rc8 18. O-O Nh5 $15) (14... a6 $142 15. Nd4 (15. Na3 $6 Be6 {[%csl Ra3]})
15... Nh5 $1 {and White has serious problems completing his development.}) 15.
Qxd8 Rfxd8 16. Bxb5 a6 17. Be2 Nd7 (17... Nh5 18. g3 $5) 18. Kf2 Bxc3 19. Rxc3
Rxc3 20. bxc3 $15 {[%mdl 4096] Black has obtained a small advantage in the
endgame but it is not easy to convert. Finally White manages to hold his
ground.} Nc5 21. Ke3 Na4 22. Rb1 Rd7 23. Rb3 Rc7 24. c4 Nc5 25. Rb6 e5 26. g3
Rc6 27. Rxc6 bxc6 28. h4 f6 29. f4 Kf7 30. Bg4 h6 31. f5 $5 gxf5 (31... g5 32.
Bd1 Ke7 33. Bc2 Kd6 34. Kf3 $132) 32. Bxf5 Ke7 33. Kf3 a5 34. Kg4 Kf7 35. Kh5
Kg7 36. g4 Nd3 37. g5 hxg5 38. hxg5 c5 39. Bd7 Nb4 40. Kg4 $5 {White finds a
study-like draw, avoiding long defence.} ({After} 40. a4 {, however, Black
could hardly break through, e.g.} Nc2 41. Kh4 Nd4 42. Kg4 fxg5 43. Kxg5 Kf7 44.
Bg4 $11) 40... Nxa2 41. Kf5 fxg5 42. Kxg5 $1 (42. Kxe5 Nc3 $19) 42... Kf7 43.
Kf5 Ke7 {[%cal Re7d7,Re7d6]} 44. Kxe5 Kxd7 (44... Nc3 45. Bc6 a4 46. Bxa4 Nxa4
47. Kd5 Kd7 48. e5 $1 $11 {- the white pawn deflects the black king, and the
white monarch breaks through to c6 and b5.}) 45. Kd5 a4 (45... Kc7 46. Kxc5 Nc3
(46... Nb4 47. Kb5 Nc6 48. e5 Kd7 49. c5 Kc7 50. e6 $11) 47. e5 Kd7 48. Kd4 $1
Na4 49. Kd5 $1 Nb2 50. Kc5 {- surprisingly, White's king both supports his
pawns and controls Black's a5-pawn.}) 46. Kxc5 a3 47. Kd4 Kc6 48. e5 Kd7 49. c5
Ke6 50. c6 Nb4 51. Kc3 Nxc6 52. Kb3 Nxe5 53. Kxa3 1/2-1/2

[Event "Tata Steel-A 74th"]
[Site "Wijk aan Zee"]
[Date "2012.01.27"]
[Round "11"]
[White "Aronian, Levon"]
[Black "Navara, David"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2805"]
[BlackElo "2712"]
[Annotator "Krasenkow,M"]
[PlyCount "120"]
[EventDate "2012.01.14"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "21"]
[SourceTitle "CBM 147"]
[Source "ChessBase"]
[SourceDate "2012.03.16"]
[SourceVersion "1"]
[SourceVersionDate "2012.03.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 Bg4 8.
Bb5+ {An idea of GM M.Illescas.} (8. Be3 Bxf3 9. gxf3 Bxd4 {- see Fressinet -
So in CBM 141.}) 8... c6 9. Ng5 O-O 10. Be2 Bxe2 (10... Bc8 11. h4 $1 $36 c5 $6
12. dxc5 N6d7 13. Be3 Qa5 14. Qc4 b5 15. Qb3 Na6 16. O-O h6 17. Nf3 b4 18. Qa4
$1 $16 {0-1 Illescas Cordoba,M (2591)-Negi,P (2615)/Sestao 2010/CBM 138 (53)})
11. Nxe2 Na6 $146 (11... N8d7 12. Qh3 h6 13. Nf3 h5 14. e5 $36 c5 $5 (14... e6
15. Bg5) 15. e6 $1 cxd4 $1 16. exf7+ (16. exd7 e5 17. Bd2 $14) 16... Rxf7 17.
Ng5 Rf5 $13 {1-0 Gordon,S (2535)-Bok,B (2488)/Germany 2011/EXT 2012 (28)}) 12.
Be3 Qd6 13. O-O (13. a3 c5 $1) 13... Qb4 $1 {It is essential for Black to
trade queens as White's space advantage is more important in the middlegame.}
14. Qxb4 {After this move Black seizes initiative.} (14. Qc2 $142 Qc4 15. Rfc1
Qxc2 16. Rxc2 e5 17. dxe5 Bxe5 18. a3 $11) 14... Nxb4 {[%cal Rb4c2]} 15. Rfc1
e5 $1 16. Nf3 (16. dxe5 Bxe5 17. Bc5 Nd3 $1 18. Bxf8 Nxc1 19. Rxc1 Rxf8 $15)
16... exd4 17. Bxd4 Rfe8 18. Bxg7 Kxg7 19. Ng3 (19. Nc3 Rad8 20. Rd1 Nc4 $36)
19... Rad8 20. Ne1 Rd2 21. a3 Nd3 22. Nxd3 (22. Nf1 $142 $1 Nxc1 23. Nxd2 Rd8
24. Rxc1 Rxd2 25. Rc2 $15) 22... Rxd3 23. Rab1 (23. f3 $142 Re5 24. b4 Rb5 25.
Ne2) 23... Re5 24. Rd1 Rxd1+ 25. Rxd1 {[%mdl 4096]} Rb5 26. b4 Nc4 27. Rd3 a5
28. bxa5 Rxa5 29. f4 Rxa3 {Black has won a pawn and gradually parries White's
counterplay:} 30. Rd7 b5 31. e5 b4 (31... Re3 32. Rc7 b4 33. Rxc6 b3 34. Rxc4
b2 35. Rb4 Re1+ 36. Kf2 b1=Q 37. Rxb1 Rxb1 {is hardly enough for a win.}) 32.
e6 b3 33. Rxf7+ (33. e7 Ra8 (33... b2 $5 34. e8=Q b1=Q+ 35. Nf1 Qf5) 34. Ne4 (
34. Rd8 $2 b2 35. e8=Q b1=Q+ 36. Nf1 Qb6+) 34... b2 35. Nc3 Re8 36. Rb7 Ne3 37.
Rxb2 Rxe7 {should be gradually winning for Black, too.}) 33... Kh6 34. Rb7 b2
35. Kf2 Ra7 36. Rb8 Ra8 37. Rb7 Ra2 38. Ne2 Nd6 $1 39. e7 $1 (39. Rb8 Kg7 $19)
39... Nxb7 40. e8=Q b1=Q 41. Qf8+ Kh5 42. Qe7 $1 Qb6+ 43. Kf3 Qb3+ 44. Kf2
Rxe2+ 45. Qxe2+ (45. Kxe2 $142 {but it is probably insufficient, too:} h6 46.
h3 (46. Qe5+ Kg4) 46... Qg3 $1 47. Qe5+ g5 48. Qe8+ Kh4 49. Qxc6 Qxf4 $1 50.
Qxb7 Kg3 {etc. - Black should win as White's king is cut off.}) 45... Kh6 46.
g4 (46. Qe7 $5 Qc2+ 47. Ke1 $1 Qc5 $1 48. Qxb7 Qg1+ 49. Ke2 Qxg2+ $19 {_|_})
46... Nd8 $1 47. Qe7 Ne6 48. Qh4+ Kg7 49. Qe7+ Kg8 50. Qe8+ Nf8 51. Qxc6 Qe6
52. Qf3 Nd7 53. h3 Kf7 54. Qc3 Qd5 55. Kg3 Nc5 56. Kh4 h6 57. Qh8 g5+ 58. fxg5
hxg5+ 59. Kh5 Qe4 60. Kxg5 Ne6+ (60... Ne6+ 61. Kh4 Qe1+ 62. Kh5 Ng7+ 63. Kg5
Qe3+ 64. Kh4 Qf2+ 65. Kg5 Qf6#) 0-1

[Event "Sonsbeek SNS"]
[Site "Arnhem"]
[Date "1999.05.08"]
[Round "6"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Nijboer, Friso"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2673"]
[BlackElo "2515"]
[Annotator "Krasenkow,M"]
[PlyCount "101"]
[EventDate "1999.05.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[EventCategory "14"]
[SourceTitle "CBM 071"]
[Source "ChessBase"]
[SourceDate "1999.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Nf3 Bg4 9. Be2 Bxf3 (9... Nc6 10. d5 Bxf3 11. Bxf3 Ne5 12. Be2 c6 $6 (12...
Nec4 13. Bc1 e6 14. dxe6 Qxd1+ 15. Bxd1 fxe6 16. Bb3 Kf7 $11) 13. Qb3 $1 cxd5
14. Rd1 $1 Nc6 (14... Rc8 $1 15. Nxd5 Nxd5 16. Rxd5 Qc7 17. Bxa7 Qc2 $132 {
Ftacnik}) 15. exd5 Na5 16. Qb4 Nc8 17. O-O Nd6 18. Nb5 $1 b6 19. Nxd6 exd6 20.
Ba6 $1 Re8 21. Qa3 $16 {1-0 Bagirov,V-Minzer,C/Linares 1997 (40)}) 10. Bxf3 c5
(10... Nc6 11. d5 {-9...Nc6}) 11. d5 Nc4 12. Bc1 Nd7 (12... e5 $5 13. dxe6 fxe6
14. Qb3 Ne5 15. Qxe6+ Kh8 16. Be2 Nd3+) 13. O-O a6 14. Bg4 {White has
prevented ...e7-e5 and has a small plus thanks to his pawn centre and pair of
bishops. He must now develop his pieces and then prepare f2-f4 and e4-e5.
However, Black manages to create a strong outpost on d3.} b5 15. Qe2 Ndb6 16.
Rb1 Ne5 17. Bh3 c4 18. b3 $1 Nd3 19. Bd2 (19. bxc4 Nxc1 20. Rfxc1 Nxc4) 19...
Qc7 20. g3 Nd7 {To support his knight, Black should rather do something with
the white pawn centre:} (20... Rfe8 {[%cal Ye7e6]} 21. f4 Bd4+ 22. Kh1 e6 $132)
{However, Black prefers another plan: Nb6-d7-c5 and ...e7-e5.} 21. Qe3 {
[%cal Yc3e2,Ye2d4,Yd4c6]} Rad8 22. Ne2 {This is too slow.} (22. f4 $5) 22...
N7c5 23. Nd4 Rd6 {[%cal Ye7e6]} 24. bxc4 bxc4 25. Bc3 (25. Nc6 c3) 25... Rfd8
26. Ne2 {Whie doesn't find another medicine against the 26...e6 threat but now
he remains with a bad h3 bishop and can't successfully fight against the c4
pawn supported by two formidable knights.} Bxc3 27. Nxc3 e5 $1 28. f4 Qa5 29.
fxe5 Nxe5 30. Qd4 Ncd3 31. Rb7 Qc5 32. Ne2 Re8 33. Bg2 Qxd4+ 34. Nxd4 Rc8 35.
Bh3 Rf8 $2 {Friso Nijboer was probably in a time-trouble already. Otherwise it
is unclear why he didn't dare to play} (35... Rc5 $17 {and} 36. Ne6 {doesn't
work in view of} (36. Nc6 c3) 36... fxe6 37. Bxe6+ Rxe6 38. dxe6 (38. Rb8+ Kg7
39. dxe6 Rc7) 38... Rc8) {Now, with the black rook out of play, the situation
changes dramatically.} 36. Rc7 Rb6 37. Nc6 c3 $2 {Probably a blunder.} (37...
Nxc6 38. Rxc6 Rxc6 (38... Rb2 39. Rxa6 (39. Rxc4 Rxa2 $15) 39... c3 40. Ra3 $14
) 39. dxc6 c3 40. c7 c2 41. c8=Q Rxc8 42. Bxc8 c1=Q 43. Rxc1 Nxc1 44. a3 a5 45.
Kf2 $14) (37... Kg7 38. Nxe5 Nxe5 39. Re7 Nd3 40. e5 (40. Be6 c3 41. Rexf7+
Rxf7 42. Rxf7+ Kh6 43. Rc7 c2 $1 $19) 40... c3 41. Rc7 (41. e6 c2) 41... Nxe5
42. Rxc3 $11) 38. Ne7+ Kg7 39. Rxc3 Rb2 $2 40. d6 Rd8 41. d7 $1 Rxa2 $2 (41...
Kf8 42. Nc6 Nxc6 43. Rxc6 Ne5 44. Rxa6 $18) 42. Rxd3 Nxd3 43. Nc6 Rxd7 44. Bxd7
Re2 45. Rd1 Nc5 46. e5 a5 47. Rd5 Rc2 48. Nxa5 Nxd7 49. Rxd7 Rc5 50. Nb7 Rxe5
51. Nd6 1-0

[Event "EU-Cup 29th"]
[Site "Rhodes"]
[Date "2013.10.25"]
[Round "6.1"]
[White "Svidler, Peter"]
[Black "Sutovsky, Emil"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2740"]
[BlackElo "2657"]
[Annotator "Krasenkow,M"]
[PlyCount "97"]
[EventDate "2013.10.20"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 157"]
[Source "ChessBase"]
[SourceDate "2013.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.12"]
[SourceQuality "1"]
[WhiteTeam "St Petersburg"]
[BlackTeam "Odlar Yurdu"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "AZE"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 Be6 8.
Qa3 c5 {This curious pawn sacrifice (instead of the normal moves} (8... Nc6) ({
or} 8... O-O {)}) {was introduced by GM Surya Ganguly in 2009. Somehow it has
not brought any noticeable success to Black so far.} 9. e4 $5 (9. O-O-O $6 {
1-0 (27) Lalith,B (2529)-Van Beek,A (2329) Leiden 2012} cxd4 $17) (9. e3 {
is playable but quite modest:} cxd4 10. Nxd4 Bxd4 $5 11. Rd1 $5 (11. exd4 O-O
12. Bh6 Re8 13. Rd1 Nc6 14. Bb5 a6 (14... Rc8 $142 {[%cal Ya7a6]}) 15. Bxc6
bxc6 16. O-O Rb8 17. b3 Nd5 18. Ne4 Nb4 19. Qb2 Bd5 20. Nc5 $14 {0-1 (69)
Moradiabadi,E (2575)-Ganguly,S (2644) Guangzhou 2010}) 11... Nc6 12. exd4 Nd5
13. Bh6 Qb6 14. Be2 O-O-O 15. O-O Nxd4 $2 (15... Qb4 $1 $11) 16. Bg7 Nxe2+ 17.
Nxe2 Rhe8 18. Be5 Nb4 19. Bd4 $16 {->: 1-0 (28) Inarkiev,E (2693)-Sutovsky,E 
(2660) Poikovsky RUS 2013}) (9. Qxc5 {is principled; it is still unclear
whether Black can equalize:} Nc6 10. e3 Rc8 11. Qa3 O-O 12. Rd1 $5 (12. Nd2 Nd5
13. Bg3 (13. Nxd5 Bxd5 $36) 13... f5 $1 14. Bc4 f4 15. Bxd5 Bxd5 16. Bxf4 {
1-0 (40) Papin,V (2575)-Nyback,T (2636) Plovdiv 2012} Nxd4 $1 17. exd4 Rxf4 $36
) (12. Be2 Nc4 13. Qa4 Nxb2 14. Qb5 Nc4 15. O-O Qa5 $1 (15... Nb6 16. Rac1 Nd5
17. Nxd5 Bxd5 18. Rc5 e6 19. Rfc1 Re8 20. Qb1 $14 {1-0 (40) Shchekachev,A 
(2530)-Safarli,E (2597) Zuerich 2009}) 16. Rfc1 Na3 $6 (16... Qxb5 17. Nxb5 Nb6
$11) 17. Qxb7 Nb4 18. Ne1 Bf5 19. g4 $1 Nac2 20. Nxc2 Bxc2 21. Nb5 $16 {
1-0 (30) Le Quang,L (2703)-Navara,D (2706) Belfort 2012}) 12... a5 (12... Nd5
13. Nxd5 Bxd5 14. Bd3 Bxf3 15. gxf3 Qb6 16. Bg5 h6 17. Bh4 e5 18. d5 e4 19.
fxe4 Nb4 20. O-O $16 {1-0 (36) Lalith,B (2529)-Jansa,V (2460) Pardubice 2012})
13. Ne5 Nd5 14. Nxc6 Rxc6 15. Bg3 $5 {, and Black is yet to prove his
compensation} (15. Bb5 $6 Rb6 (15... Rxc3 $5 16. bxc3 Nxf4 17. exf4 Qd5) 16.
Qxa5 (16. Qa4 Bg4 17. f3 Nxf4 18. exf4 Bd7 19. Bxd7 Rb4 20. Qc2 Qxd7 $36) 16...
Nxf4 17. exf4 Bb3 $1 $17 {[%cal Rb6e6] 0-1 (31) Sadorra,J (2451)-Ganguly,S 
(2625) Subic Bay 2009})) 9... cxd4 10. Nb5 O-O 11. Nc7 Nc6 12. Nxa8 Qxa8 {
Black has got a pawn for the exchange but he must obtain an additional
compensation while White is completing his development.} 13. Rc1 f5 $1 14. e5
Nd5 15. Bd2 Nxe5 (15... Qb8 $5 16. Bb5 Bxe5 17. O-O Bf7 18. Bxc6 Bd6 $1 (18...
bxc6 $2 19. Nxe5 Qxe5 20. Rxc6 f4 21. Qd3 Re8 22. Re1 Qg5 23. Qxd4 $18 {
1-0 (30) Bu Xiangzhi (2670)-Tomczak,J (2560) Guimaraes 2012}) 19. b4 bxc6 20.
Nxd4 Nxb4 $13) 16. Nxd4 Bf7 17. Be2 Nb6 $146 {[%mdl 8] Only this move is a
novelty - improvement on the previous game, in which Black didn't obtain
enough counterplay:} (17... Rd8 18. Nf3 Nxf3+ 19. Bxf3 e5 20. O-O e4 21. Be2
Qb8 22. Rfd1 Be5 23. h3 $14 {1-0 (43) Khismatullin,D (2656)-Popov,I (2653)
Rhodes GRE 2013}) 18. b3 Qd8 19. Nf3 Nd3+ 20. Bxd3 Qxd3 {White's king is now
trapped in the centre.} 21. Qxa7 Bb2 {Going for a forced line. Black has some
other interesting possibilities:} (21... Nd5) (21... Rc8) 22. Qxb6 Bxc1 23.
Bxc1 Rd8 24. Nd2 Rd6 25. Qb4 {Hardly better are:} (25. Qxb7 Bd5) (25. Qa7 Bd5)
25... Bd5 $1 26. f3 Re6+ $6 (26... Qe3+ {was simpler:} 27. Kd1 (27. Kf1 $4 Rc6
28. Bb2 Re6 $19) 27... Bxf3+ $1 28. Kc2 $1 (28. gxf3 Qxf3+ 29. Kc2 Qxh1 {
is clearly favorable for Black}) 28... Bxg2 29. Rd1 f4 {with an excellent
compensation for the piece. After the text move Black gets even more pawns but
White fully consolidates his position.}) 27. Kd1 Re2 28. Bb2 Rxg2 29. Kc1 Bxf3
30. Re1 Rxh2 (30... Be4 $6 31. Qc3) 31. Bc3 Be4 32. Kb2 (32. Qc4+ $1 Qxc4 (
32... Kf8 33. Qxd3 Bxd3 34. Re3 {[%cal Rc3b4] leads to the game continuation})
33. bxc4 Kf7 34. Nxe4 fxe4 35. Rxe4 (35. a3 $6 g5 36. Rxe4 h5) 35... Rxa2 36.
Bb4 e6 37. Re5 {[%cal Ye5b5] , and it is unclear whether Black can reach a draw
}) 32... Qd6 {Black thinks he will be safe in the endgame with 3 pawns for a
piece.} (32... Kf7 $5) 33. Ka3 Qa6+ 34. Kb2 Qd6 35. Qc4+ Kf8 36. Kc1 $1 {
White finds a good opportunity.} Qd3 (36... Qa3+ $2 37. Bb2 Qxa2 38. Qc3) 37.
Qxd3 Bxd3 {[%mdl 4096]} 38. Re3 {We have reached a line examined in
annotations to move 32. White wins the e7-pawn, and Black's passed pawns don't
guarantee him sufficient counter-chances.} Bb5 39. a4 (39. Bb4 $5 Re2 40. Bxe7+
Kg7 41. Rxe2 Bxe2 {- it is hard to say whether White can win here.}) 39... Bc6
40. Bb4 f4 $6 (40... Kf7 41. Rxe7+ Kf6 {[%cal Yh7h5] , activating the king,
better fitted endgame principles.}) 41. Rxe7 Kg8 42. Bc5 {This way White
doesn't stop Black's pawns.} (42. a5 $142 $1 f3 43. Rc7 {[%cal Ra5a6]} Bd5 44.
Kc2 Rh5 (44... f2 45. Kd3 {[%cal Yd3e2]}) 45. Rc8+ Kg7 46. Rf8 {- apparently,
White should win.}) 42... f3 43. b4 f2 44. b5 Bd5 45. Re5 Bf7 (45... Bf3 $142
$1 46. Re8+ Kg7 47. Bxf2 Rxf2 48. Nxf3 Rxf3 49. Re7+ Kf6 50. Rxb7 g5 {, and
Black should reach a draw.}) 46. a5 Rh1+ 47. Kc2 Re1 48. Re7 $6 (48. Bd4 $1 {
was the last chance:} Be8 $1 (48... Rxe5 $6 49. Bxe5 Bc4 50. a6 $1 bxa6 51. b6
Bd5 52. Bd4) 49. Rxe8+ (49. a6 $143 bxa6 50. bxa6 Bc6 51. a7 f1=Q 52. Nxf1 Rxf1
) 49... Rxe8 50. Bxf2 {keeping winning chances.}) 48... Bd5 49. a6 (49. a6 bxa6
50. bxa6 f1=Q 51. Nxf1 Rxf1 $11) 1/2-1/2

[Event "Dos Hermanas 10th"]
[Site "Dos Hermanas"]
[Date "1999.04.07"]
[Round "2"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Polgar, Judit"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2673"]
[BlackElo "2677"]
[Annotator "Krasenkow,M"]
[PlyCount "85"]
[EventDate "1999.04.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ESP"]
[EventCategory "19"]
[SourceTitle "CBM 071"]
[Source "ChessBase"]
[SourceDate "1999.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Na5 {This looks stronger than} (11...
Ne5 {, after which the black knight disturbs his other pieces. The simplest
way to refute it is probably} 12. Qb3 {, e.g.} c6 (12... Qc8 13. h4 h5 14.
O-O-O c6 15. Kb1 Ned7 16. d6 Qe8 17. Rhg1 Kh7 18. f4 Rd8 19. e5 {1-0 Boensch,
U-Gyorkos,L/Szekszard op 1989 (27)}) 13. f4 Ned7 14. Rd1 (14. dxc6 bxc6 15. Rd1
e6 16. h4 Qe7 17. h5 Rab8 18. hxg6 hxg6 19. Qc2 $16 {Hausrath,D-Mohandesi,S/
Interteam ch, BEL 1996/1-0 (54)}) 14... Qc7 15. O-O Rfd8 16. a4 Nf6 17. a5 Nbd7
18. dxc6 bxc6 19. e5 Nd5 20. Nxd5 cxd5 21. Rxd5 $18 {Dao Thien Hai-Zaw Oo/
Yangon zt 1998/1-0 (46)}) {This is one of the rare occasions when a knight is
better placed at the edge of the board than in the centre!} 12. Bd4 c5 $5 (
12... e5 13. Bc5 Re8 14. Bb5 c6 15. dxc6 bxc6 16. Ba6 Bf8 (16... Qf6 $5) 17.
Bxf8 Rxf8 18. Qxd8 Raxd8 19. Rd1 Rd4 20. Ke2 Rfd8 21. b3 $14 {Soppe,
G-Malisauskas,V/Erevan olm 1996/1-0 (74)}) 13. Bxg7 (13. Bxc5 Nac4 14. Bxc4
Nxc4 15. Qe2 Nxb2 16. Qxb2 Qc7 17. Bb4 (17. Qa3 Rfc8) 17... a5 $17 {Atalik})
13... Kxg7 14. Qc2 e5 {Black closes down the position. Now White castles to
the q-side and mutual pawn attacks start. However, the poor position of the
black a5 knight enables White to come first. Korchnoi nicely underlines the
drawbacks of Black's plan.} 15. Nd1 {[%cal Yd1e3,Ye3g4]} Nd7 16. Qc3 $1 $146 {
An interesting novelty. White has two ideas: 17.f4 and 17.Bb5} (16. Ne3 c4 $1
17. h4 b5 18. h5 Nb7 19. O-O-O Nd6 20. Rdg1 g5 21. Qd2 Kh8 22. Kb1 f6 $13 {
Sokolov,I-Atalik,S/New York 1997/1/2-1/2(42)}) 16... a6 $6 (16... f6 17. Bb5 {
to exchange the "bad" bishop} b6 18. Bxd7 Qxd7 19. h4 {But after the text move
Whie starts a strong attack.}) 17. f4 f6 18. f5 $1 g5 (18... gxf5 19. Ne3 $5
fxe4 20. Bg4 b6 21. Be6 $44) 19. h4 h6 20. Ne3 {Black now has to do something
as otherwise after 20.hxg5 hxg5 21.Ng4 he will have serious problems.} Qb6 {
[%cal Yb6b4]} 21. a3 c4 {[%cal Yb6d4]} 22. Rd1 Nc5 {[#]} 23. Qb4 $1 Qb5 24. f3
{White's plan now is: to remove his king th g2 and eventually capture the c4
pawn. Meanwhile the black pieces are completely motionless due to their
awkward positions.} Rac8 25. Kf2 b6 26. Kg2 {/\27.Rc1} g4 {despair} 27. Nxg4
Ncb3 28. Rhg1 Qxb4 29. axb4 Nb7 {With an extra pawn and attack along the
g-file White confidently brings home his advantage.} 30. Kf2 Kh7 31. Ne3 Nd6
32. Rg6 h5 33. Nf1 Nd4 34. Ng3 c3 35. bxc3 Rxc3 36. Bd3 a5 37. bxa5 bxa5 38.
Nxh5 Ne8 39. d6 Rf7 40. d7 Rxd7 41. Bb5 Rc2+ 42. Kf1 Rf7 43. Bxe8 1-0

[Event "Mitropa Cup 19th"]
[Site "Baden"]
[Date "1999.04.04"]
[Round "4"]
[White "Arlandi, Ennio"]
[Black "Konopka, Michal"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2445"]
[BlackElo "2480"]
[Annotator "Krasenkow,M"]
[PlyCount "94"]
[EventDate "1999.04.01"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 071"]
[Source "ChessBase"]
[SourceDate "1999.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Na5 12. Bd4 Qd6 $1 {Black refrains
from ...e7-e5 or ...c7-c5, intending to play ...c7-c6 or ...e7-e6 later on.}
13. Bxg7 (13. Nb5 Qb4+ 14. Qd2 Qxd2+ 15. Kxd2 c6 16. Bxg7 Kxg7 17. dxc6 Nxc6
18. Rhd1 f5 19. Ke1 Rac8 20. Nd4 Kf6 21. a4 a5 22. Nxc6 Rxc6 23. b4 axb4 24.
Rdb1 Nc4 25. Rxb4 Nd6 26. exf5 gxf5 27. f4 Rg8 $11 {Shabtai,R-Jansa,V/Gausdal
Int 1995/1-0 (69)}) 13... Kxg7 {[%csl Re5,Rf4]} 14. Qd2 (14. Qd4+ e5 15. Qd3 c6
) (14. f4 $5 f6 (14... Qxf4 $2 15. Qd4+ e5 16. Qc5) (14... Qf6)) 14... Qf6 {
[%cal Ra5c4]} 15. b3 {[%csl Ra5]} Rfd8 {If Black manages to liberate his a5
knight (playing ...Nc6 or eliminating the d5 pawn by means of ...c6 or ...e6),
his position will be good in view of White's double f-pawns.} 16. Rc1 (16. Qe3
c6 17. Qc5 Nac4 $1) 16... e6 $1 (16... c6 $2 17. Nd1) 17. Nb5 Nc6 18. Nxc7 Rac8
19. Ne8+ $5 (19. Qc3 Qxc3+ 20. Rxc3 exd5 21. exd5 Nxd5 22. Nxd5 Rxd5 $15) 19...
Rxe8 20. dxc6 Rxc6 21. Rxc6 bxc6 22. O-O Rd8 $15 23. Qc1 e5 24. Rd1 Rxd1+ 25.
Qxd1 Qg5+ 26. Kf1 Qh4 27. Kg2 Qe7 28. Qc1 Qd6 29. Kg3 Nd7 30. Qd1 Qxd1 31. Bxd1
{Black has a small advantage in this endgame as thw white double f-pawns are
extremely weak. Still, it is not enough to win as the white bishop is able to
protect both sides.} Nf6 32. Kg2 (32. b4 $1) 32... Nh5 (32... c5 $5 $15) 33. b4
Nf4+ 34. Kf1 Ne6 35. Ke2 Kf6 36. Kd3 Ke7 37. Ba4 Kd6 38. Bb3 Nf4+ 39. Ke3 f6
40. Bc4 c5 41. a3 Kc6 42. Kd2 g5 43. Ke3 Kb6 44. Kd2 Ng6 45. Bf7 Nf8 46. Kc3
Nd7 47. Kc4 cxb4 1/2-1/2

[Event "EU-chT (Men) 19th"]
[Site "Warsaw"]
[Date "2013.11.12"]
[Round "5.1"]
[White "Lupulescu, Constantin"]
[Black "Areshchenko, Alexander"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2630"]
[BlackElo "2720"]
[Annotator "Krasenkow,M"]
[PlyCount "121"]
[EventDate "2013.11.08"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 158"]
[Source "ChessBase"]
[SourceDate "2014.01.16"]
[SourceVersion "1"]
[SourceVersionDate "2014.01.16"]
[SourceQuality "1"]
[WhiteTeam "Romania"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "UKR"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8.
Nf3 Bg4 9. Qd2 (9. Be2 {is played more often here - see CBM 136, annotations
to Nikolov - Sutovsky.}) 9... c5 (9... Bxf3 {looks more logical:} 10. gxf3 {
[%cal Yh2h4]} Qd6 (10... Nc6 11. d5 Ne5 12. O-O-O (12. Be2 $5 $14 {[%cal Yf3f4]
}) 12... c5 13. Be2 Qc7 14. h4 $36 {0-1 (23) Buckley,G (2352)-Sowray,P (2362)
England 2012}) (10... c5 11. d5 {- below}) 11. h4 Nc6 12. d5 Bxc3 $5 (12... Ne5
13. Be2 b5 14. h5 $36 {1-0 (33) Naumkin,I (2440)-Tocchioni,D (2250) Porto San
Giorgio 2000}) 13. Qxc3 Ne5 14. Be2 $13 (14. f4 $6 Ng4 {[%cal Yg4f6,Yf6h5]}))
10. d5 Qd6 $2 {[%mdl 16384] And here it was essential to get rid of White's
knight:} (10... Bxf3 11. gxf3 (11. Bxg7 $5 Kxg7 (11... Bxg2 12. Bxg2 Kxg7 13.
h4 $44) 12. Qc3+ Kg8 13. gxf3 {leads to a position from the next line}) 11...
Bxc3 (11... e6 12. Bc4 $14) 12. Qxc3 $1 (12. bxc3 e6 13. d6 Qf6 14. f4 e5 15.
fxe5 Qf3 16. Rg1 Nc6 17. Bg2 Nxe5 $13 {1/2 (43) Sokolov,I (2657)-Sutovsky,E 
(2676) Kragujevac 2009}) 12... Qd6 13. O-O-O e5 (13... Nd7 $142 14. Kb1 Rac8
15. h4 $36) 14. f4 $1 f6 15. f5 $1 g5 16. h4 $1 h6 17. Qf3 $18 {->: 1-0 (21)
Lagarde,M (2452)-Griffiths,R (2317) Albena 2011}) 11. Bxg7 Kxg7 12. Qc3+ f6 13.
Nd2 {That's the point. White's knight destroys Black's blockading attemps, and
Black's bishop is useless.} Na6 (13... Bd7 {was possible but what can he do
with the b8-knight after that?!}) 14. Nc4 Qf4 15. Ne3 $1 Bd7 (15... Qxe4 16.
Bxa6 bxa6 17. f3 Bxf3 18. gxf3 Qxf3 19. Rf1 Qh5 20. Rf2 $16 {- White's knight
is obviously stronger than Black's pawns.}) 16. Bxa6 bxa6 17. f3 $16 {Black's
pawn structure lies in ruins; White's position is technically winning.} Qb8 18.
O-O Qb4 19. Rac1 Rfc8 20. Nc4 Bb5 21. Rf2 {White doesn't fear a rook ending.}
Rab8 (21... Qxc3 22. Rxc3 Bxc4 23. Rxc4 Rab8 24. Rfc2 {[%cal Rb2b4]} a5 25.
Rxc5 Rxc5 26. Rxc5 Rxb2 27. Rxa5 $18) 22. Na5 $1 Qxc3 23. Rxc3 c4 24. Rfc2 (24.
Rd2 $5) 24... f5 25. Kf2 fxe4 26. fxe4 e6 27. dxe6 Kf6 28. Kf3 Rc5 (28... Kxe6
29. Nxc4 Bxc4 30. Rxc4 Rxc4 31. Rxc4 Rxb2 32. Rc6+ Ke5 33. Rxa6 {- game}) 29.
Nxc4 Bxc4 30. Rxc4 Rxc4 31. Rxc4 Rxb2 {[%mdl 4096]} 32. e7 $1 Kxe7 33. Rc7+ Kf6
(33... Kf8 34. Rxh7 Rxa2 35. h4 $1 {(the most accurate)} ({but} 35. Rxa7 Ra3+
36. Kf4 Ra2 37. g4 Rxh2 38. Rxa6 {is also winning}) 35... a5 36. Rxa7 $18 {
[%cal Yg2g4,Yf3f4]}) 34. Rc6+ Ke5 35. Rxa6 $18 {The passed e-pawn and an
active rook are sufficient for a win. That was demonstrated in several games
by Akiba Rubinstein (Rubinstein - Lasker, St.Petersburg 1909, is the closest
example).} Rb7 36. h4 Rc7 37. Ra5+ Kd4 {Desperation.} 38. Ra4+ Ke5 39. Ra5+ Kd4
40. Rd5+ Kc4 41. Rd1 Rb7 42. e5 Kc5 43. Rd2 a5 44. Kf4 Rf7+ 45. Ke4 Kc6 46.
Rd6+ Kc7 47. Rf6 Rd7 48. Rf2 Kd8 49. e6 Rd1 50. Ke5 Ke8 51. Rb2 a4 (51... Re1+
52. Kf6 Rf1+ 53. Kg7 Ke7 54. Kxh7 Rh1 55. Kxg6 Rxh4 56. Re2 $18) 52. Rb8+ Ke7
53. Rb7+ Ke8 54. Rb8+ Ke7 55. Rb7+ Ke8 56. Rxh7 Rd2 57. g4 Rxa2 58. Kf6 Rf2+
59. Kxg6 Re2 60. Ra7 Rxe6+ 61. Kf5 1-0

[Event "Sofia MTel Masters 4th"]
[Site "Sofia"]
[Date "2008.05.16"]
[Round "8"]
[White "Topalov, Veselin"]
[Black "Cheparinov, Ivan"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2767"]
[BlackElo "2696"]
[Annotator "Krasenkow,M"]
[PlyCount "63"]
[EventDate "2008.05.08"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BUL"]
[EventCategory "20"]
[SourceTitle "CBM 124"]
[Source "ChessBase"]
[SourceDate "2008.05.28"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Nf3 Bg7 7. e3 O-O 8.
Rc1 N8d7 (8... Nc6 $1 9. Bb5 e5 {is definitely more active - see opening
database in CBM 119}) 9. a4 $1 $146 {[%mdl 8]} (9. Be2 {is quite harmless:} e5
{Or else:} (9... c5 $6 10. O-O cxd4 11. Nxd4 Nc5 (11... Ne5 12. Ncb5 Bd7 13.
Ba5 Nc6 14. Nxc6 bxc6 15. Nd4 $14 {1/2-1/2 Gurevich,D-Sutovsky,E/Rishon Le
Ziyyon 2006/CBM 114 ext (53)}) 12. Ncb5 a6 13. Rxc5 axb5 14. Rxb5 e5 15. Nf3
$16 Rxa2 {0-1 Gurevich,D-Livshits,G/Rishon Le Ziyyon 2006/CBM 114 ext (48)} 16.
Bb4 $18) (9... c6 $5 10. O-O e5 11. Ne4 (11. b4 Re8 12. a4 e4 13. Ne1 Nf6 14.
b5 Bd7 15. a5 Nbd5 16. Nxd5 cxd5 17. Qb3 Bg4 18. Bxg4 Nxg4 19. h3 Nf6 20. Nc2
Qd7 21. Na3 {1/2-1/2 Burger,K-Byrne,D/New York 1969/MCD}) 11... Qe7 12. dxe5
Nxe5 13. Bc3 Rd8 14. Qc2 Bf5 15. Nd4 Bg4 16. Bxg4 Nxg4 17. Nf3 Bxc3 18. Nxc3
Re8 19. Rfd1 Nf6 $11 {0-1 Goehring,K-Gauglitz,G/Germany 1995/GER-chT2 (45)})
10. O-O (10. d5 e4 11. Nxe4 Nxd5 12. Qb3 c6 13. O-O Re8 14. Nd6 Nc5 15. Rxc5
Qxd6 $11 {1/2-1/2 Hottes,D-Fritsch,R/Germany 1989/GER-chT2 (23)}) 10... exd4
11. Nxd4 Ne5 (11... c6 $5 12. b4 Re8 13. a4 Ne5 14. Ne4 Nec4 15. Bxc4 Nxc4 (
15... Rxe4 $2 16. Bxf7+ $1 $16 {1-0 Smyslov,V-Stein,L/Moskva 1969/Inf 08 (50)})
16. Rxc4 Rxe4 17. Nxc6 Qd5 18. Rxe4 Qxe4 19. Nd4 Bd7 $44) (11... Nf6 12. b4 c6
13. a4 a6 14. Qb3 Qe7 15. Rfd1 Rd8 16. a5 Nbd5 $11 17. Na4 $6 Ne4 18. Be1 Nf4
19. Bf3 Bxd4 20. exd4 Ng5 $40 {0-1 Kholmov,R-Szabo,L/Budapest 1970/MCD (56)})
12. Ne4 Re8 (12... Nd5 13. Qb3 c6 14. Rfd1 Qe7 15. Ng3 f5 16. a3 Kh8 $13 {
0-1 Reisel,F-Fabian,J/Slovakia 1999/EXT 2001 (46)}) (12... Qh4 13. Nc5 (13. f4
$5) 13... Nd5 14. Nf3 Qe7 15. Qb3 c6 16. e4 Nxf3+ 17. Bxf3 $14 {0-1 Duer,
A-Naumann,A/Linz 2000/EXT 2001 (53)}) 13. Qc2 (13. Nc5 c6 14. b4 Nd5 15. Ncb3
Qe7 16. b5 cxb5 17. Bxb5 Rd8 18. Qc2 Bg4 19. Rfe1 {1/2-1/2 Gligoric,S-Uhlmann,
W/Rovinj/Zagreb 1970/Inf 09}) 13... Nd5 14. Rfd1 c6 15. b4 Qe7 16. Qb3 Ng4 17.
Ng3 Bxd4 18. exd4 Qh4 19. Bxg4 Bxg4 20. Re1 Bd7 21. Qd3 Qd8 22. a3 {1/2-1/2
Toran Albero,R-Unzicker,W/Palma de Mallorca 1969/MCD}) (9. e4 c5 $5 10. d5 Ne5
11. Nxe5 Bxe5 12. Be3 e6 13. Bxc5 exd5 14. Bxf8 Qxf8 15. exd5 Qb4 16. Bd3 Bg4
17. Qb3 Qf4 $44 {0-1 David,V-Le Roux,J/France 2007/CBM 121 Extra (26)}) 9... a5
10. e4 {This is the point! ...c7-c5 will now weaken the b5 square.} e5 (10...
c5 11. d5 {[%csl Rb5]} f5 $6 {is quite dubious.}) 11. d5 c6 {This move is
necessary sooner or later. Black could also start with} (11... Nf6) 12. Bg5 $5
Bf6 $6 (12... Nf6 $1 13. dxc6 bxc6 14. Qxd8 Rxd8 15. Be3 $1 (15. Nxe5 Re8 16.
Nxc6 Bd7 17. Bb5 Nxe4 $44) 15... Nbd7 (15... Rb8 $2 16. Nxe5) 16. Bc4 $14) (
12... f6 $143 13. Be3 $16) 13. Be3 {[%csl Rd7,Rf6]} (13. h4 $5) 13... Qe7 (
13... cxd5 14. exd5 (14. Nxd5 Nxd5 15. Qxd5 Nb8 16. Qxd8 Rxd8 17. Bb6 Re8 18.
Bb5 $36) 14... e4 15. Nxe4 Bxb2 (15... Re8 16. Nc3 $16) 16. Rc2 Bg7 17. Bb5 $16
) 14. d6 Qe6 15. b3 Bg7 16. h4 {After completely tying up Black's pieces White
starts a decisive attack.} f5 {Desperation.} 17. Ng5 Qf6 18. b4 $1 f4 (18...
axb4 19. Qb3+ Kh8 20. Qxb4 c5 21. Qb3 {and Black has no moves!}) 19. Bxb6 Nxb6
20. bxa5 Nd7 21. a6 $1 Kh8 (21... bxa6 22. Nd5 Qxd6 23. Rxc6 $1 Qa3 24. h5 $18)
22. Nb1 $6 (22. a5 bxa6 23. Na4 {was more natural.}) 22... Bh6 23. Nf3 bxa6 {
Collapsing at once but Black could hardly organize any defense anyway:} (23...
Re8 24. Be2 Re6 (24... Bf8 25. Ng5) 25. axb7 Bxb7 26. Qb3 Bc8 27. Ng5 $1 $18)
24. Rxc6 Bb7 (24... Rb8 25. Nc3) 25. Rc7 Bxe4 26. Rxd7 Qf5 27. Rc7 Bxb1 28. Ng5
$1 Bg7 29. Bc4 Bc2 30. Qd5 h6 31. Rf7 Qc8 32. Rxg7 (32. Rxg7 Kxg7 33. Qxe5+ Rf6
34. Qe7+ $18) 1-0

[Event "Abu Dhabi op 13th"]
[Site "Abu Dhabi"]
[Date "2003.08.20"]
[Round "5"]
[White "Bakre, Tejas"]
[Black "Vakhidov, Tahir"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2434"]
[BlackElo "2528"]
[Annotator "Krasenkow,M"]
[PlyCount "43"]
[EventDate "2003.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UAE"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4+ c6 {
Quite a rare move. Black is going to play ...b5 or prepare ...e5.} 8. Nf3 {
But this position appears in practice very often, e.g. from the Antigruenfeld:
1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Qa4+ c6 6.e4 Nxc3 7.bxc3 Bg7 8.d4.
Several other move orders are possible, too.} O-O (8... b5 {is too early:} 9.
Qa3 O-O 10. Bg5 Re8 11. Be2 Qd6 12. Qb2 Nd7 13. e5 Qd5 14. O-O Nb6 15. Nd2 Be6
16. Rfe1 Qd7 17. Ne4 Na4 18. Qa3 Bd5 19. Bf3 $14 {1-0 Alekseev,V-Marklund,N/
Gothenburg 2001/EXT 2002 (40)}) 9. Bg5 {Or else:} (9. Ba3 $5 {is the most
logical option to prevent both ...c5 and ...e5:} Nd7 (9... b6 10. Rd1 (10. Qc2
Re8 11. Rd1 Ba6 12. Bxa6 Nxa6 13. O-O Qc8 14. Qb3 c5 15. Ng5 e6 16. e5 Qc6 17.
Rfe1 c4 18. Qc2 Nc7 19. Qe2 $36 {1-0 Stahlberg,G-Rossetto,H/Buenos Aires 1947/
MCL (38)}) 10... Qc7 11. Be2 c5 12. O-O Nd7 13. Qb3 Bb7 14. d5 Qf4 15. Rfe1 Ne5
16. Nd2 Bc8 17. Bc1 Qf6 18. Nf1 Bd7 19. f4 Ng4 20. e5 Qh4 21. g3 Qh3 22. Bf3
$16 {1-0 Bolbochan,J-Lipiniks,L/Buenos Aires 1946/EXT 99 (48)}) (9... Re8 10.
Be2 (10. Qb3 $5) 10... Nd7 11. Rd1 e5 12. dxe5 Qb6 13. O-O Nxe5 14. Nd4 Nd7 15.
Nb3 Bxc3 16. Kh1 a5 17. Qc4 Bb4 18. Bb2 Ne5 19. Qc1 a4 20. Nd4 $44 {1-0 Garcia
Gonzales,G-Beliavsky,A/Leningrad 1977/MCL (33)}) (9... b5 10. Qc2 a5 11. Be2
Na6 12. O-O Bb7 13. Rfd1 Rc8 14. Rab1 Qc7 15. Bc1 c5 16. Rxb5 cxd4 17. Nxd4 Nc5
18. Bf3 Ba6 19. Rb1 {1-0 Nedochetov,M-Potapenko,A/Moscow 1996/CBM 56 ext (25)})
10. Rd1 (10. Bd3 c5 11. O-O Nb6 12. Qb5 cxd4 13. cxd4 Bg4 14. Ne5 Be6 15. Bb2
a6 16. Qa5 Qd6 17. Rfd1 Rac8 18. Bf1 Nc4 19. Nxc4 Bxc4 20. Bxc4 Rxc4 21. e5 Qc7
22. Qxc7 Rxc7 23. Rac1 Rfc8 $11 {1-0 Zhukova,N-Marinina,T/Serpukhov RUS 2003/
The Week in Chess 435 (55)}) 10... Re8 (10... b5 $5) 11. Qb3 $1 Qb6 12. Bc4
Qxb3 13. Bxb3 b6 14. Ng5 e6 15. e5 Ba6 16. f4 Bh6 17. h4 Rad8 18. Kf2 Bxg5 19.
hxg5 c5 20. g4 $16 {1-0 Flohr,S-Zhivtsov,A/Moscow 1945/HCL (37). (36)}) (9. Bf4
$5 Nd7 10. Rd1 c5 11. Be2 cxd4 12. cxd4 Nb6 13. Qa5 Bg4 14. O-O Qe8 15. Bb5 Qc8
16. Rc1 Qe6 17. Ne5 $16 {1-0 Beretta,H-Lipiniks,L/Buenos Aires 1946/EXT 99 (23)
}) (9. Be2 {is too cautious:} c5 $5 (9... Nd7 10. O-O b5 (10... e5 11. Bg5 Qc7
12. Rad1 exd4 13. cxd4 Re8 14. Qc2 Qa5 15. h3 Nb6 16. e5 Be6 17. Ra1 Rac8 $132
{1/2-1/2 Chistiakov,A-Estrin,Y/USSR 1969/Inf 07 (69)}) (10... Qc7 11. Re1 b5
12. Qc2 Nb6 13. Be3 Be6 14. Qd2 Bc4 15. Bf4 Qd7 16. Bd1 f6 17. Bc2 e5 $11 {
1/2-1/2 Gustafsson,J-Hort,V/Dieren 1999/CBM 71 ext (30)}) (10... Nb6 11. Qc2
Bg4 12. Rb1 Qc7 13. Rd1 Rfe8 14. h3 Bxf3 15. Bxf3 e5 16. Qb3 c5 17. d5 Bf8 18.
Qb5 Reb8 19. Be3 Nc8 20. Qe8 {1/2-1/2 Horvath,C-Groszpeter,A/Zalakaros 2001/
EXT 2002 (20)}) 11. Qc2 Nb6 12. Ba3 Be6 13. Ng5 Bc4 14. f4 b4 15. Bxb4 Bxd4+
16. Kh1 Bxe2 17. Qxe2 Bg7 18. f5 h6 19. Nf3 Qc7 20. fxg6 fxg6 21. Bc5 Kh7 22.
Bd4 Nd7 23. Bxg7 Kxg7 24. Nd4 Rxf1+ 25. Rxf1 Qd6 26. Rd1 Qf6 27. Rf1 Qd6 28.
Rd1 Qf6 29. Nf3 Ne5 $11 {1/2-1/2 Doroshkievich,V-Yandemirov,V/Lvov 1986/EXT 99
(38)}) (9... b5 10. Qa3 Nd7 (10... a5 11. Bg5 Re8 12. Rd1 Qd6 13. Qc1 Qe6 14.
Qc2 Nd7 15. O-O Nb6 16. Rfe1 h6 17. Bc1 $14 {1-0 Tunik,G-Zitin,Y/Minsk 1995/
CBM 46 ext (49)}) 11. O-O Nb6 12. Bg5 f6 13. Qb3+ Kh8 14. Be3 Qd6 15. Nd2 Be6
16. Qc2 f5 17. f3 Bg8 18. Kh1 e5 19. Rad1 $14 {1-0 Tunik,G-Pribyl,M/Pardubice
1992/EXT 2000 (34)}) 10. O-O (10. Be3 cxd4 11. cxd4 Bd7 (11... b6 12. Rc1 Bb7
13. d5 f5 14. Ng5 Qd6 15. Ne6 Nd7 16. Rc7 Bc8 17. Rc6 Qb8 18. Nxg7 Kxg7 19.
Qd4+ Kg8 20. d6 e6 21. Rc7 b5 {1-0 Semkov,S-Roski,F/Berlin West 1988/TD (21)})
12. Qc2 Nc6 13. O-O Rc8 14. Qd2 Bg4 15. Rfd1 Qa5 16. Qxa5 Nxa5 17. Rac1 Rxc1
18. Rxc1 Rc8 $11 {1-0 Vokralova,S-Sternina,V/Halle 1978/EXT 2000 (42)}) 10...
cxd4 (10... Nc6 11. Be3 Qc7 12. d5 Na5 13. Qa3 b6 14. Rad1 Bg4 15. Qc1 Bxf3 16.
Bxf3 Nc4 17. Bg5 Bf6 18. Be2 Bxg5 19. Qxg5 $14 {1-0 Berebora,F-Hughes,P/
Balatonbereny 1992/TD (46)}) 11. cxd4 Nc6 12. Be3 Bg4 (12... Bd7 13. Qa3 Bg4
14. Rab1 Bxf3 15. Bxf3 Nxd4 16. Rxb7 e5 17. Rc1 $14 {1-0 Rossetto,H-Gorini,C/
Remedios de Escalada 1949/EXT 99 (47)}) 13. Rfd1 a6 14. Rac1 b5 15. Qa3 Bxf3
16. Bxf3 Nxd4 17. Bxd4 Bxd4 18. e5 Ra7 19. Kf1 Rd7 20. Qxa6 Bxe5 21. Qxb5 $11 {
1/2-1/2 Uhlmann,W-Schmidt,W/Aarhus 1971/EXT 2000 (49)}) (9. Rb1 c5 10. Be2 Nc6
11. Be3 cxd4 12. cxd4 Bg4 13. d5 Bxf3 14. gxf3 Na5 15. h4 h5 16. Rg1 b6 17. f4
Rc8 18. f5 Qd6 19. Kf1 Rc3 $132 {1/2-1/2 Chistiakov,A-Simagin,V/Moscow 1952/
MCD (42)}) (9. Be3 Nd7 $1 (9... c5 10. Rc1 (10. Be2 b6 (10... Nc6 11. O-O e6 (
11... cxd4 12. cxd4 Bg4 13. Rad1 Qa5 14. Qb3 Bxf3 15. Bxf3 Qb4 16. Qxb4 Nxb4
17. Rd2 b6 18. Rb1 Nc6 19. Be2 Rfd8 20. d5 Ne5 21. Rc2 $16 {1-0 Mikhalevski,
V-Koolhoven,M/Vlissingen 1999/EXT 2000 (28)}) 12. Rac1 Bd7 13. Qb3 Qc7 14. Rfd1
Rfd8 15. dxc5 Be8 16. Nd4 $14 {1-0 Jurkiewicz,M-Kowalski,A/Sopot 1997/EXT 2003
(42)}) 11. O-O cxd4 12. cxd4 Bb7 13. e5 Qd7 14. Qxd7 Nxd7 15. Bb5 Rfd8 16. Rfc1
a6 17. Bc6 Bxc6 18. Rxc6 Rac8 19. Rac1 Rxc6 20. Rxc6 Nxe5 $1 $11 {1/2-1/2 Kunz,
K-Pribyl,J/Boeblingen 1998/EXT 2001 (82)}) 10... cxd4 11. cxd4 e6 (11... Nc6
12. Bb5 Bd7 13. d5 Nb8 14. O-O a6 15. Bxd7 Nxd7 16. Qb4 b5 17. Rc6 $16 {
1/2-1/2 Adamski,J-Jessen,S/Copenhagen 2000/CBM 77 ext (36)}) 12. Bb5 b6 13. Bg5
f6 14. Be3 Bb7 15. d5 a6 16. Bc6 b5 17. Qb3 Nxc6 18. dxc6 Bc8 19. O-O $36 {
1-0 Hort,V-Schmidt,W/CSSR-Polska 1978/Inf 26 (26)}) (9... b5 10. Qc2 Qa5 11.
Be2 Nd7 12. O-O Nb6 13. Nd2 Na4 14. Rac1 Bd7 15. Nb3 Qc7 16. c4 b4 17. f4 $14 {
0-1 Raceanu,V-Petrenko,S/Bucharest 2000/EXT 2001 (39)}) 10. Rd1 (10. Be2 e5 11.
O-O Qc7 $1 (11... Qe7 12. Qc2 Re8 13. Bg5 Bf6 14. Bxf6 Qxf6 15. Rad1 b6 16. Nd2
Bb7 17. Nc4 Re7 18. f4 $1 exf4 19. e5 $16 {1-0 Raceanu,V-Petrosian,T/Artek
1999/EXT 2000 (36)}) 12. Qc2 c5 13. Rac1 b6 14. h3 Bb7 15. d5 Nf6 16. Nd2 Ne8
17. c4 Nd6 18. Bd3 f5 $132 {0-1 Tunik,G-Mikhalevski,V/Beersheba 1996/CBM 53 
(44)}) 10... b5 (10... c5 $5 11. Bd3 Nb6 12. Qa3 cxd4 13. cxd4 Bg4 14. O-O Bxf3
15. gxf3 e6 16. f4 Qh4 $132 {0-1 Volkov,S-Ruck,R/Panormo 2002/CBM 90 ext (43)})
11. Qa3 Nb6 12. Be2 Be6 13. Nd2 Qd6 14. Qxd6 $6 (14. Qb2) 14... exd6 15. a3 f5
16. f3 d5 17. exf5 Bxf5 18. Kf2 Rae8 $40 {0-1 Adamski,J-Roos,D/Luzern 1982/EXT
97-B (37)}) (9. Qa3 $5 Qd6 10. e5 Qxa3 11. Bxa3 Re8 12. Bc4 h6 13. O-O b5 14.
Bd3 Be6 $14 {1-0 Socko,M-Jaracz,B/Cisna 1997/EXT 2003 (38)}) 9... h6 (9... c5
$5 10. Rd1 (10. Qa3 h6 11. Be3 cxd4 12. cxd4 Nc6 13. Rd1 Bg4 14. e5 Qd5 $11 {
1/2-1/2 Delgado Cespedes,I-Vilaseco,F/St Spiritus 1989/EXT 97 (24)}) 10... Nc6
11. Be2 h6 12. Be3 cxd4 13. cxd4 Bd7 14. Qa3 Bg4 15. e5 Qa5+ 16. Qxa5 Nxa5 17.
O-O Rac8 18. Rc1 e6 $11 {1-0 Volkov,S-Karjakin,S/Panormo 2002/CBM 90 ext (55)})
(9... Re8 10. Rd1 b5 11. Qa3 Qd6 12. Qc1 Bg4 13. Be2 Nd7 14. O-O Qe6 15. c4 $1
Nb6 16. cxb5 cxb5 17. Bxb5 $16 {1-0 Krasenkow,M-Fernandes,A/Batumi 1999/CBM 74
(30)}) 10. Be3 c5 11. Rc1 e6 12. dxc5 {As usually, capture of this pawn is
absolutely harmless until Black has played ...a7-a6. Now Black can always play
...b6 at an appropriate moment.} Qc7 13. Nd2 Bd7 14. Qa3 Bc6 15. Be2 Nd7 16.
O-O Rfd8 17. f3 b6 $1 18. cxb6 axb6 {[%csl Ra2,Rc3] Despite being a pawn down,
Black has no problems equalizing due to White's weak queenside pawns.} 19. Qb2
Qa7 20. Bb5 Bxb5 21. Qxb5 Qxa2 22. Nc4 1/2-1/2

[Event "Abu Dhabi op 13th"]
[Site "Abu Dhabi"]
[Date "2003.08.25"]
[Round "9"]
[White "Raetsky, Alexander"]
[Black "Mohandesi, Shahin"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2438"]
[BlackElo "2337"]
[Annotator "Krasenkow,M"]
[PlyCount "100"]
[EventDate "2003.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UAE"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Bf4 {A harmless system,
in which Black has several ways to equalize.} Bg7 7. e3 O-O 8. Nf3 (8. h4 $6 c5
9. dxc5 N6d7 10. h5 Nxc5 11. hxg6 hxg6 12. Bc4 Qa5 13. Rc1 Ne4 $17 {0-1 Engels,
M-Lytchak,A/Cologne 1994/EXT 2002 (40)}) (8. h3 $6 c5 9. dxc5 Bxc3+ 10. bxc3
Qxd1+ 11. Rxd1 N6d7 12. Bh6 Re8 13. Bb5 a6 14. Ba4 Nc6 15. Bxc6 bxc6 16. Nf3
Nxc5 $36 {0-1 Mikrut,D-Cyborowski,L/Polanczyk 2000/CBM 79 ext (39)}) (8. Rc1 c5
9. dxc5 Bxc3+ 10. bxc3 Qxd1+ 11. Rxd1 N6d7 12. Bb5 Nc6 13. Nf3 Nxc5 $11 {
0-1 Dao Thien Hai-Gyorkos,L/Budapest 1993/CBM 36 ext (45). (45)}) 8... Bg4 (
8... Nc6 $5 9. Be2 e5 (9... Nb4 10. O-O N4d5 11. Be5 Bg4 12. Bxg7 Kxg7 13. Ne4
c6 14. Rc1 Nd7 15. a3 Qb6 16. Qd2 Bxf3 17. Bxf3 Rfd8 18. Rfd1 N5f6 19. Nc3 e5
20. Na4 Qb5 21. Qc2 exd4 22. Rxd4 Qa5 {1/2-1/2 Kamsky,G-Anand,V/Monaco Amber
blind (10)/1994/ (47)}) 10. Nxe5 Nxe5 11. dxe5 Qe7 12. O-O Rd8 13. Qc2 Bxe5 14.
Bxe5 Qxe5 15. Rad1 Rxd1 16. Rxd1 Be6 17. Bf3 c6 $11 {0-1 Ballon,G-Wilhelmi,C/
Bad Woerishofen 2000/CBM 75 ext (46)}) (8... c5 $5 9. dxc5 N6d7 10. Rc1 Nc6 11.
Bb5 Nxc5 12. O-O Bf5 13. Qe2 Bd3 14. Bxd3 Qxd3 15. Rfd1 Qxe2 16. Nxe2 Rfd8 $11
{0-1 Kortschnoj,V-Spassky,B/St Petersburg 1999/EXT 2000 (45)}) 9. Be2 N8d7 (
9... c5 10. dxc5 Bxc3+ 11. bxc3 Qxd1+ 12. Rxd1 Na4 13. Bh6 Rc8 14. Rd4 Bxf3 15.
Bxf3 Nxc5 16. O-O Nc6 17. Rfd1 $5 (17. Bxc6 $5 Rxc6 18. Rfd1 f5 19. f3 $13 {
Ftacnik}) 17... Ne5 18. Be2 (18. Bd5 $5) 18... f6 19. Bf4 (19. f3 $5 Ne6 20.
Rb4 Nf7 21. Bf4 Nxf4 22. exf4 Rc7 $10 {Ftacnik}) 19... Nf7 20. Bg3 e5 21. Rc4
$6 (21. Rb4 {Ftacnik}) 21... b5 $1 22. Rb4 Na4 23. Bxb5 Nxc3 24. Ra1 a5 25. Rb3
a4 26. Rb4 Rcb8 27. Bc6 Rxb4 28. Bxa8 Rb8 $15 {0-1 Borbjerggaard,L-Tseshkovsky,
V/Copenhagen 1996/CBM 54/[Ftacnik] (38)}) 10. O-O c6 11. Rc1 Bxf3 12. Bxf3 e5
13. dxe5 Nxe5 14. Be2 Qe7 15. Qc2 (15. Qb3 g5 $6 (15... Rad8) 16. Bg3 Rad8 17.
Rfd1 $14 {1/2-1/2 Groesman,G-Bertaccini,D/Buenos Aires 2001/EXT 2003 (17).})
15... Rad8 16. Rfd1 Rxd1+ 17. Rxd1 Rd8 18. b3 Rxd1+ 19. Qxd1 Ned7 {Black is by
no means worse in this endgame despite White's pair of bishops. The black
knights have good strongholds and his queenside pawn advantage should not be
underestimated. Besides, White can hardly avoid the exchange of his
dark-squared bishop.} 20. Bd6 (20. Qd2 $5) 20... Qe6 21. Bb4 Bf8 22. Bxf8 Kxf8
23. Qd4 Qe5 24. Qxe5 Nxe5 $11 25. f4 Ned7 26. e4 f6 27. Kf2 Ke7 28. Ke3 c5 29.
h4 Nb8 30. h5 Nc6 31. h6 $6 {White doesn't reconcile himself to a draw and
gradually gets into trouble.} Nd8 {[%csl Rh6]} 32. e5 {The draw could be
reached by} (32. a4 a5 (32... Nf7 $6 33. a5 Nd7 34. Nd5+) 33. Bc4 $1 Nxc4+ 34.
bxc4 Nf7 35. Nd5+ Ke6 36. Nc7+ Kd7 37. Nd5 $11) 32... fxe5 33. fxe5 Nf7 34. Bf3
$6 {Giving up a pawn} (34. Kf4 Nxh6 35. Bf3 $11) 34... Nxe5 $6 (34... Ke6 $142
35. Bxb7 Kxe5 {[%csl Ge5]}) 35. Bxb7 Ng4+ 36. Kd3 Nxh6 37. a4 $2 {After this
move Black gradually brings home his material advantage.} (37. Ne4 Nd7 38. Bc8
{enabled White to recapture the pawn with a probable draw:} Nf7 39. Bxd7 Ne5+
40. Kc3 Nxd7 41. Kc4 $11) 37... Nf7 38. a5 Nd7 39. Nb5 Nd6 $1 40. Nxd6 Kxd6 ({
An intermediate} 40... Ne5+ $5 {was also possible but Black accurately
calculates that the white king's invasion to a6 doesn't work.}) 41. Kc4 h5 42.
Kb5 Ne5 43. Ka6 Nc6 $1 44. Kb5 (44. Bxc6 Kxc6 45. Kxa7 h4 46. a6 Kc7 $19) 44...
Nb4 45. Bf3 h4 46. Be4 g5 47. Bb7 g4 48. Be4 Ke5 49. Bb7 Kd4 50. Bc8 h3 0-1

[Event "Match Bogoljubow-Romanowsky +5-1=2 (6)"]
[Site "Leningrad"]
[Date "1924.??.??"]
[Round "5"]
[White "Bogoljubow, Efim"]
[Black "Romanovsky, Peter Arsenievich"]
[Result "1-0"]
[ECO "D90"]
[Annotator "Lasker,Emanuel"]
[PlyCount "105"]
[EventDate "1924.11.30"]
[EventType "match"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 {Lasker,Emanuel:Lehrbuch des Schachspiels. S.256} Nf6 2. c4 d5 3. cxd5
Nxd5 4. d4 g6 (4... Bf5 $142 {Marshall}) 5. e4 Nf6 6. Nc3 Bg7 7. h3 O-O 8. Be3
c6 9. Qd2 Re8 10. Bd3 Nbd7 {Weiß beherrscht die Mitte, aber Schwarz droht,
das Spiel durch e7-e5 zu vereinfachen.} 11. e5 $1 Nd5 12. Nxd5 cxd5 13. O-O f6
{Schwarz ist willens zu kämpfen. Er scheint nun Punkt e5 erschüttert zu
haben.} 14. Bh6 {Weiß findet die Kombination, um e5 zu behaupten.} fxe5 15.
Bxg7 Kxg7 (15... e4 16. Qh6 exf3 17. Bxg6 hxg6 18. Bh8 Kf7 19. Qh7+ Ke6 20.
Rfe1+ Kd6 21. Qxg6+ e6 22. Qg3+ Kc6 23. Rec1+ Kb5 24. a4+ Ka6 25. a5 $18) 16.
dxe5 Nc5 17. Nd4 Ne6 18. Ne2 Rf8 19. f4 Qb6+ 20. Kh2 Nd4 21. Nc3 e6 22. Rad1
Nf5 23. Bxf5 Rxf5 24. Ne2 Bd7 25. Nd4 Rf7 26. h4 $1 Raf8 27. Rf3 Kh8 28. Rc1
Qd8 29. Kg3 $1 Rg8 30. Qb4 Qb8 31. Qd6 Qe8 32. Rc7 Bc8 33. Rxf7 Qxf7 34. Rc3
Qe8 35. Rc7 Rg7 36. Nb5 a6 37. Qc5 Rxc7 38. Nxc7 Qf7 39. Nxd5 Bd7 40. Nf6 Bc6
41. Qd6 h5 42. Kh3 Kg7 43. g4 Bf3 44. gxh5 gxh5 45. Qd3 Bg4+ 46. Nxg4 hxg4+ 47.
Kxg4 Kh6 48. Qd8 Kh7 49. Qf6 Qg8+ 50. Qg5 Qc8 51. h5 Qc6 52. Qg6+ Kh8 53. Kg5
1-0

[Event "Gibraltar Masters 10th"]
[Site "Caleta"]
[Date "2012.01.31"]
[Round "8"]
[White "Fier, Alexandr"]
[Black "Salem, AR Saleh"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2603"]
[BlackElo "2505"]
[Annotator "Let's Check"]
[PlyCount "86"]
[EventDate "2012.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "GGB"]
[SourceTitle "CBM 147"]
[Source "ChessBase"]
[SourceDate "2012.03.16"]
[SourceVersion "1"]
[SourceVersionDate "2012.03.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 O-O 8.
Rd1 h6 9. Bh4 a5 10. e3 Nc6 11. d5 Nb4 12. a3 Na6 13. Be2 Nc5 14. Qa2 Bxc3+ 15.
bxc3 Nba4 16. Rc1 c6 17. O-O g5 18. Bg3 Qxd5 19. c4 Qe4 20. Bd1 Bg4 21. Qa1
Bxf3 22. gxf3 Qe6 23. f4 f5 24. Bc2 g4 25. f3 $6 (25. Bh4 Rad8 26. Rfd1 $15)
25... h5 $6 (25... Qxe3+ 26. Kh1 Nc3 $19) 26. e4 $11 Qf6 27. exf5 Rad8 28. fxg4
Nc3 29. g5 Ne2+ 30. Kh1 Qxa1 31. Rxa1 Rd2 32. Ra2 Nxg3+ 33. hxg3 Ne4 34. Rf3
Rfd8 35. Re3 Nf2+ 36. Kg1 Nh3+ 37. Kf1 Rf2+ 38. Ke1 Rdd2 $2 (38... Rg2 39. c5
Rg1+ $11) 39. Rxe7 $2 (39. f6 $18) 39... Ng1 $2 (39... Rxc2 40. Rxc2 $11) 40.
Bd1 $2 (40. Re8+ Kf7 41. Bd1 $3 $18) 40... Rxa2 $11 41. f6 $4 (41. Re8+ Kg7 42.
f6+ $11) 41... Rg2 $19 42. Kf1 Nh3 43. Be2 Rg1# 0-1

[Event "EU-ch 13th"]
[Site "Plovdiv"]
[Date "2012.03.29"]
[Round "9"]
[White "Jankovic, Alojzije"]
[Black "Nedilko, Vasily"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2553"]
[BlackElo "2392"]
[Annotator "Let's Check Training"]
[PlyCount "58"]
[EventDate "2012.03.20"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "CBM 148"]
[Source "ChessBase"]
[SourceDate "2012.05.16"]
[SourceVersion "1"]
[SourceVersionDate "2012.05.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 c6 9. e4 b5 10. Qb3 Qa5 11. e5 Be6 12. Qc2 Nd5 13. Bd2 Nxc3 14. Bd3 Na6 15.
O-O Ne2+ 16. Bxe2 Qb6 17. a4 Rac8 18. axb5 cxb5 19. Qe4 Nc7 20. Bb4 Bd5 21. Qe3
Ne6 22. Bxe7 Rfe8 23. Bd6 Bxf3 24. Bxf3 Nxd4 25. Bd5 Rcd8 26. Qg5 Rxd6 $2 (
26... Nf5 27. Qf4 Nxd6 $17) 27. exd6 $16 Re5 $2 (27... Qxd6 28. Rxa7 Rf8 $18) {
[%tqu "En","","","","g5e7","",10]} 28. Qe7 $3 $18 Rxe7 (28... Rxd5 29. Rxa7
Qxa7 $18) 29. dxe7 Qb8 1-0

[Event "Candidates Tournament"]
[Site "London"]
[Date "2013.03.28"]
[Round "11"]
[White "Grischuk, Alexander"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2764"]
[BlackElo "2872"]
[Annotator "Marin,M"]
[PlyCount "46"]
[EventDate "2013.03.15"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "ENG"]
[EventCategory "22"]
[SourceTitle "CBM 154"]
[Source "ChessBase"]
[SourceDate "2013.05.15"]
[SourceVersion "1"]
[SourceVersionDate "2013.05.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 $5 {This extravagant move has
some abstract justification. Black's position in the centre is not too stable,
quite typically for the Grьnfeld, so he might be not that well prepared
against the brutal advance of the h-pawn.} c6 {Adding some stability to the
centre, so as to parry h4-h5, at least for the time being.} ({If} 5... h5 6.
Bg5 {the insertion of the moves h4 and ...h5 ensures that the g5-bishop is
defended, rendering the typical ...Nf6-e4 ineffective.} c6 7. e3 $14 {Kadas,G 
(2224)-Bakos,B (2234)/Hungary 2006/EXT 2009 (0-1, 39)}) 6. Bg5 ({In the few
games played with this line,} 6. cxd5 cxd5 7. Bf4 {In principle, the move
h2-h4 does not seem to fit into what would otherwise be a marginally better
position for White. Still, in the long run the threat h4-h5 may become real
and if Black prevents it with ...h7-h5, things would already look coherent
from White's point of view.} Nc6 8. e3 O-O 9. Ne5 (9. Be2 Bg4 10. O-O e6 11.
Rc1 Rc8 {Melkumyan,H (2649)-Erdos,V (2637)/Germany 2013/CBM 153 (1/2, 58)})
9... Qb6 (9... Be6 10. Nd3 b6 11. Be2 h5 12. Rc1 Bg4 13. f3 Bd7 14. b4 e6 15.
Qb3 $14 {Nenezic,M (2400)-Maric,D (2207)/Belgrade 2013/CBM 152 Extra (1-0, 36)}
) 10. Qb3 Qxb3 (10... Bf5 11. Be2 h5 {Sadorra,J (2431)-Gopal,G (2548)/Beijing
2008/CBM 126 Extra (1-0, 29)} 12. Qxb6 axb6 13. f3 $14) 11. axb3 Nb4 12. Kd2 h5
13. Nd3 Nc6 (13... Nxd3 14. Bxd3 {[%cal Gc3b5]} Bd7 15. Ra5 $14) 14. f3 Bf5 15.
Ne5 $14 {Morozevich,A (2748)-Giri,A (2720)/Beijing 2012/ (1-0, 49). In all
these games, White's better control in the centre and the king's
centralisation make his position more pleasant.}) 6... O-O $146 {This flexible
developing move invites White to display his cards.} (6... Ne4 7. cxd5 (7. e3
$5 $14) 7... cxd5 8. Qb3 Nxc3 {1/2 Wocke,R-Chandler,P/Wiesbaden 1988/GER}) 7.
Bxf6 ({One possible problem is that the natural} 7. e3 {cuts off the bishop's
retreat, allowing} Nh5 $5 {[%cal Gh7h6]}) 7... Bxf6 (7... exf6 $5 {might also
be playable.} 8. cxd5 cxd5 9. e3 Nc6 {[%cal Gf6f5] There is no clear plan of
attacking the d5-pawn, while Black enjoys free development.}) 8. h5 Bf5 {
The bishop hurries to the defence of the kingside.} (8... dxc4 9. e4 b5 ({If} 
9... Be6 {then White gains time to cut the dark-squared bishop out of the play
completely:} 10. e5 Bg7 11. h6 Bh8 12. Ng5 Bd5 13. Qg4 Qb6 14. O-O-O Na6 15. f4
{Black will have to play the rest of the game with his bishop immobile on h8.
Besides, his king is under constant pressure. Would the extra pawn and
activity of the remaining pieces compensate for these important drawbacks?
With Black, I would be afraid they would not.}) 10. e5 Bg7 {Now, the same plan
is more difficult to carry out; Black would react with ...f6 if needed. White
may play} 11. a4 $44 {, hoping that the queenside diversion would create
favourable circumstances on the opposite wing.}) 9. e3 (9. Qb3 $5 dxc4 10. Qxb7
Qb6 11. Qxb6 (11. Qxa8 Qxb2 $19) 11... axb6 12. e4 Be6 13. e5 Bg7 (13... Bh8 {
anticipates the white plan, but the bishop does not stand nicely on h8.}) 14.
h6 $5 Bh8 15. Ng5 Bd5 16. f4 {The h8-bishop has been cut off play mechanically.
On the other hand, Black has an advantage on the queenside and in some cases
he could free his bishop with a knight sacrifice on e5 (following to ...
f7-f6xe5). The final evaluation is not clear to me, since the computers do not
always understand the notion of a trapped piece.}) 9... e6 10. hxg6 Bxg6 $1 (
10... hxg6 11. Ne5 {exposes the bishop to the threat g2-g4 and forces Black to
make some concession.} c5 (11... Bxe5 12. dxe5 Qg5 13. Qd4 Nd7 14. cxd5 exd5
15. O-O-O $36) 12. g4 cxd4 13. exd4 Be4 14. f3 Bh4+ 15. Ke2 f6 16. Nd7 $5 Qxd7
17. Rxh4 g5 18. Rh1 Bg6 19. cxd5 exd5 20. Kf2 $14) 11. Bd3 Nd7 12. Qe2 (12.
cxd5 cxd5 {[%cal Ge6e5] does not change things essentially.}) 12... e5 $132 {
Black clears the path for his Grьnfeld bishop, which will compensate for the
relative weakness of the Isolani.} 13. Bxg6 hxg6 14. dxe5 Nxe5 15. cxd5 cxd5
16. Rd1 Qa5 17. Kf1 {Grischuk keeps his rook on h1, in order to inhibit ...
Bxc3.} (17. O-O Nxf3+ 18. Qxf3 Bxc3 19. Rxd5 Qxa2 20. bxc3 a5 $11) (17. Rxd5
Nxf3+ 18. Kf1 {looks trickier, but Black has some tricks as well:} Nd2+ $3 (
18... Qc7 19. Qxf3 Bxc3 20. bxc3 Qxc3 21. Qh3 $36) 19. Qxd2 (19. Rxd2 Bxc3 20.
bxc3 Qxc3 $11) 19... Rad8 $1 $44) 17... Rad8 18. Nd4 Qc5 $11 (18... Rfe8 $2 19.
Nb3 $16 {wins the d5-pawn.}) 19. Nb3 {White has no advantage at all and,
fearing the pressure of the enemy minor pieces, immediately started peace
negotiations. In view of the weakness of his central pawn, Black cannot avoid
the repetition.} Qc6 20. Na5 Qc7 21. Nb3 Qc6 22. Na5 Qc7 23. Nb3 Qc6 1/2-1/2

[Event "Dortmund SuperGM 41st"]
[Site "Dortmund"]
[Date "2013.07.26"]
[Round "1"]
[White "Khenkin, Igor"]
[Black "Leko, Peter"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2605"]
[BlackElo "2737"]
[Annotator "Marin,M"]
[PlyCount "120"]
[EventDate "2013.07.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "19"]
[SourceTitle "CBM 156"]
[Source "ChessBase"]
[SourceDate "2013.09.17"]
[SourceVersion "1"]
[SourceVersionDate "2013.09.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Nf3 Bg7 7. Qc1 Bg4 (
7... h6 8. e4 Bg4 9. Ne5 Be6 {Fink,S (2171)-Shabalov,A (2613)/Virginia Beach
2003/CBM 093 ext (1/2, 33)}) (7... Nc6 8. Bh6 Bxh6 (8... O-O 9. Bxg7 Kxg7 10.
Qf4 Qd6 11. Qxd6 cxd6 12. d5 Ne5 13. Nd4 Bd7 14. e4 {Hambleton,A (2244)
-Griffiths,R (2362)/Athens 2012/CBM 149 Extra (1-0, 70)}) 9. Qxh6 Qd6 10. e3
Qb4 11. Rb1 Be6 12. a3 Qd6 13. Bb5 O-O-O {Roiz,M (2617)-Ragger,M (2666)/
Legnica 2013 (1/2, 41)}) 8. Bh6 O-O 9. Bxg7 Kxg7 10. Qf4 Bxf3 11. gxf3 Qd6 12.
Qxd6 cxd6 13. e3 Nc6 14. Rc1 d5 $11 {Black has achieved a very comfortable
version of the... Exchange Slav.} 15. Be2 Rac8 16. f4 e6 17. b3 Kf6 18. Kd2 Ke7
19. Bf3 Rfd8 20. Ne2 Nb4 21. a3 Na6 22. Nc3 Nc7 23. Rc2 Ne8 24. h4 Nd6 25. h5
Nd7 26. hxg6 hxg6 27. Be2 Rh8 28. Rxh8 Rxh8 29. Bd3 Nf6 30. Ke2 Rh1 31. Nb5
Nxb5 32. Bxb5 Kd8 33. Bd3 Ne8 34. Kd2 Nf6 35. Ke2 Ng4 36. Kf3 f5 37. Kg2 Ra1
38. a4 Nf6 39. Kf3 Kd7 40. Bb5+ Kd6 41. Bd3 Rd1 42. Ke2 Rb1 43. Rc3 Rb2+ 44.
Ke1 Ne4 45. Bxe4 fxe4 46. Kf1 b6 47. Kg2 a6 48. Rc8 Rxb3 49. Rg8 Ke7 50. Rxg6
a5 51. Rg7+ Kf6 52. Rb7 Rb4 53. Kg3 Rxa4 54. Rxb6 Ra1 55. Ra6 a4 56. Ra7 a3 57.
Kg2 Kg6 58. Re7 Kf6 59. Ra7 Kg6 60. Re7 Kf6 1/2-1/2

[Event "Grenke Chess Classic 4th"]
[Site "Karlsruhe/Baden-Baden"]
[Date "2017.04.20"]
[Round "5"]
[White "Meier, Georg"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2621"]
[BlackElo "2838"]
[Annotator "Moradiabadi,E"]
[PlyCount "82"]
[EventDate "2017.04.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[EventCategory "20"]
[SourceTitle "CBM 178"]
[Source "ChessBase"]
[SourceDate "2017.05.14"]
[SourceVersion "1"]
[SourceVersionDate "2017.05.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 {Not sure whether I should consider this a
surprise or not. However, when I first saw the first three moves I thought the
world champion was actually opting for a King's Indian Defence!} 4. Nf3 Bg7 5.
g3 $5 {An interesting line!} (5. cxd5 Nxd5 6. g3 {is also very interesting!})
5... dxc4 6. Qa4+ Nfd7 $1 {The best move but very well-known!} 7. Qxc4 Nb6 8.
Qd3 O-O 9. Bf4 (9. Bg2 Nc6 $15) 9... Nc6 10. Rd1 $6 {I'm not a fan of this
move. I understand that White is trying to protect d4 with Rd1 but that costs
him too many tempi. Instead, I think White should have tried to get his king
to safety as soon as possible.} (10. Bg2 Nxd4 11. Nxd4 e5 $1 (11... Qxd4 12.
Qxd4 Bxd4 13. Nb5 Bxb2 14. Rb1 a6 15. Rxb2 axb5 16. Rxb5 Bd7 17. Re5 Bc6 18.
Bxc6 bxc6 19. Rxe7 Nd5 20. Re4 Rfe8 21. Rxe8+ Rxe8 22. Kd2 Nxf4 23. gxf4 Re4
24. e3 Ra4 25. Ra1 Kf8 26. Kc3 Ke7 27. Kb3 Ra5 28. Rc1 Rb5+ 29. Kc3 Rc5+ 30.
Kd2 Rxc1 31. Kxc1 Kf6 32. Kd2 g5 33. fxg5+ Kxg5 34. f4+ Kg4 35. Kd3 Kf3 36. f5
f6 37. a4 h5 38. a5 h4 39. a6 h3 40. e4 Kg2 41. Ke2 Kxh2 42. Kf2 c5 43. e5 c4
44. exf6 c3 45. f7 c2 46. f8=Q c1=Q {1/2-1/2 (46) Bruedigam,M (2312)-Lagunow,A
(2441) Germany 2013}) 12. Bxe5 (12. Ndb5 Qxd3 13. exd3 exf4 14. Nxc7 Rb8 15.
O-O fxg3 16. hxg3 Rd8 $17 {1/2-1/2 (59) Huebner, R (2595)-Topalov,V (2750)
Dortmund 1996}) 12... Bxe5 13. Rd1 Qe7 14. O-O c6 $15) 10... Bf5 11. Qd2 Bg4
12. Bg2 $2 {This is too much.} (12. Ne5 Nxe5 13. Bxe5 Bxe5 14. dxe5 Qxd2+ 15.
Rxd2 Nc4 16. Rd4 Nxe5 17. Re4 f6 18. Bg2 {may give White some chances.}) 12...
Bxf3 13. Bxf3 Nxd4 14. Bxb7 Nc4 15. Qc1 Rb8 16. b3 Rxb7 17. bxc4 c5 18. O-O Rb4
{You know things are going really bad when every natural move for Black poses
serious problems for White.} 19. Bh6 Bxh6 20. Qxh6 Rxc4 21. Ne4 Nxe2+ 22. Kg2
Qa8 23. f3 Rxe4 $1 {Strong and forced otherwise Ng5 was a threat.} 24. fxe4
Qxe4+ 25. Kf2 Nd4 26. Qe3 Qd5 27. Rd2 e5 {The game is over. The rest is just
an agony.} 28. Re1 Re8 29. Qe4 Qe6 {No exchange this time.} 30. Re3 Kg7 31. Rb2
c4 32. g4 Qf6+ 33. Ke1 Qg5 34. Kf2 Re6 35. Ke1 h5 36. h3 Rf6 37. Kd2 Rf4 38.
Qxe5+ {I am sure Meier had seen the end but decided to give the joy of
geometry to the spectators.} Qxe5 39. Rxe5 Nf3+ {Fork number 1.} 40. Ke3 Nxe5
41. Kxf4 Nd3+ {And fork number 2 decides the game!} 0-1

[Event "Nancy"]
[Site "Nancy"]
[Date "2005.02.15"]
[Round "2"]
[White "Nezar, Mustapha"]
[Black "Marzolo, Cyril"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2375"]
[BlackElo "2428"]
[Annotator "Mueller,Karsten"]
[PlyCount "129"]
[EventDate "2005.02.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "FRA"]
[EventCategory "10"]
[SourceTitle "CBM 106"]
[Source "ChessBase"]
[SourceDate "2005.06.06"]
[SourceVersion "1"]
[SourceVersionDate "2005.06.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 c5 8.
d5 Bxc3+ 9. bxc3 O-O 10. Nf3 e6 11. Be2 exd5 12. exd5 Bg4 13. O-O Qd6 14. Rb1
Nd7 15. h3 Bxf3 16. Bxf3 b6 17. Re1 Ne5 18. Be2 c4 19. Qd4 Rac8 20. f4 Nd3 21.
Bxd3 cxd3 22. Rbd1 Rfd8 23. Rxd3 Qc5 24. Qxc5 Rxc5 25. d6 Kf8 26. Kf2 Rc6 27.
Red1 Ke8 28. Re1+ Kf8 29. Red1 Ke8 30. d7+ Ke7 31. Kf3 h5 32. g4 hxg4+ 33. Kxg4
f6 34. Re1+ Kf7 35. Red1 Ke7 36. Re3+ Kf7 37. Rd4 Rc7 38. Red3 Rc5 39. h4 Rc7
40. Rd6 Ke7 41. R6d4 Kf7 42. Rd6 Ke7 43. R6d4 Kf7 44. f5 Rc5 45. fxg6+ Kxg6 46.
Re3 Kf7 47. h5 Rc7 48. Red3 Kg7 49. Kf5 Rc5+ 50. Rd5 Rxd7 51. Rxc5 Rxd3 52.
Rc7+ Kh6 53. Kxf6 Kxh5 54. Ke5 a5 55. a4 Kg4 56. Rc6 Kf3 57. Rxb6 Rxc3 58. Rb5
Ke3 59. Rxa5 Kd3 60. Kd6 Ra3 61. Kc5 {[%tqu "De","Schwarz zieht und hдlt
remis","","","d3c3","",7,"d3c2","",0]} Kc3 $2 {nimmt dem Turm die Mцglichkeit,
auf der c-Linie Schach zu bieten} (61... Kc2 $1 62. Kb4 (62. Ra8 Rc3+ 63. Kb5
Rb3+ 64. Ka6 Kc3 65. a5 Kc4 66. Ka7 Kc5 67. a6 Kc6 68. Rb8 Ra3 $11) 62... Rb3+
63. Kc5 Ra3 64. Kb5 Kc3 65. Ra8 Rb3+ 66. Kc5 Rb4 67. a5 Rc4+ 68. Kb5 Rb4+ 69.
Ka6 Kc4 70. Rc8+ Kd5 71. Ka7 Kd6 $11) 62. Ra8 Kb3 63. Kb5 Ra1 64. a5 Rh1 65.
Rc8 1-0

[Event "Olympiad-37"]
[Site "Turin"]
[Date "2006.05.23"]
[Round "3"]
[White "Jobava, Baadur"]
[Black "Cuartas, Jaime Alexander"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2646"]
[BlackElo "2458"]
[Annotator "Mueller,Karsten"]
[PlyCount "132"]
[EventDate "2006.05.21"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ITA"]
[SourceTitle "CBM 113"]
[Source "ChessBase"]
[SourceDate "2006.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2006.07.31"]
[SourceQuality "1"]
[WhiteTeam "Georgia"]
[BlackTeam "Columbia"]
[WhiteTeamCountry "GEO"]
[BlackTeamCountry "COL"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 Bg7 8.
Bc4 O-O 9. O-O b6 10. Bg5 Qc7 11. Re1 Ba6 12. Bxa6 Nxa6 13. Qd3 Nb8 14. e5 e6
15. h4 c5 16. h5 cxd4 17. cxd4 Nc6 18. Qe4 Nb4 19. Bd2 Nd5 20. h6 Bh8 21. g4 f5
22. exf6 Rxf6 23. g5 Rff8 24. Qxe6+ Qf7 25. Kg2 Qxe6 26. Rxe6 Rf5 27. Rf1 Raf8
28. Ne5 Nf4+ 29. Bxf4 Rxf4 30. d5 Bxe5 31. Rxe5 R8f5 32. Rxf5 Rxf5 33. f4 Rxd5
34. Rc1 Rf5 35. Kf3 b5 36. Ke4 b4 37. Rc8+ Rf8 38. Rc7 Rf7 39. Rc5 Rb7 40. Rc8+
Kf7 41. Kd5 Rb5+ 42. Kd4 Rb7 43. Kc4 Ke6 44. Rf8 Rf7 45. Re8+ Kf5 46. Rg8 Kg4
47. Rg7 Rxf4+ 48. Kb5 Kxg5 49. Rxh7 a6+ 50. Kxa6 Rf2 51. Kb5 Rxa2 52. Kxb4 Rh2
53. Kc3 Rxh6 54. Rd7 Rh2 55. Rd4 Re2 56. Rd1 Rf2 $2 {It was not necessary to
let the white king get any closer. Dies lдsst den weiЯen Kцnig ohne Not nдher
heran.} (56... Kh4 57. Rh1+ (57. Rd4+ Kg3 58. Rd5 Kf4 59. Rd4+ Re4 60. Rd1 g5
61. Kd3 Re3+ 62. Kd2 Re5 63. Rf1+ Kg3 64. Kd3 g4 $19) 57... Kg3 58. Kd3 Rg2 59.
Ke3 g5 60. Rh8 g4 61. Rh7 Rg1 62. Ke2 Kg2 63. Rh8 g3 64. Rh7 Ra1 65. Rh8 Kg1
66. Rh7 g2 67. Rh8 Ra5 68. Rh7 Re5+ 69. Kd2 Kf2 70. Rf7+ Kg3 71. Rg7+ Kf3 72.
Rf7+ Kg4 73. Rg7+ Rg5 $19) 57. Rg1+ Kf5 58. Kd3 g5 59. Ke3 Rf4 60. Rg2 g4 61.
Rf2 Rxf2 62. Kxf2 Kf4 63. Kg2 g3 64. Kg1 Kf3 65. Kf1 g2+ 66. Kg1 Kg3 1/2-1/2

[Event "Biel GM"]
[Site "Biel"]
[Date "2001.07.27"]
[Round "5"]
[White "Pelletier, Yannick"]
[Black "Svidler, Peter"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2531"]
[BlackElo "2695"]
[Annotator "Pelletier,Y"]
[PlyCount "54"]
[EventDate "2001.07.23"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "SUI"]
[EventCategory "16"]
[SourceTitle "CBM 085"]
[Source "ChessBase"]
[SourceDate "2001.11.13"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 h6 8.
Bh4 Be6 9. Qc2 O-O ({Laut Bьchern besteht die beste Folge in} 9... Nc6 10. Rd1
Nb4 11. Qb1 O-O 12. e3 Bf5 13. e4 Bg4) 10. Rd1 c6 {Dieser passive Aufbau
entspricht nicht Svidlers Stil, aber die schwarze Stellung bleibt solide.} 11.
e4 a5 12. Be2 Na6 13. O-O ({Man konnte auch das Feld b4 mittels} 13. a3 {
kontrollieren.}) 13... Nb4 14. Qb1 Bc4 ({Dem Anziehenden gehцrt das Zentrum,
weshalb er auch Raumvorteil geniesst. Der Textzug sieht logisch aus, da
Schwarz eine Figur tauschen kann, aber die Alternative} 14... f5 {[%csl Rh4]
[%cal Gg6g5] kam auch in Frage. Um Vorteil zu behaupten, mьsste Weiss eine
Qualitдt opfern:} 15. a3 Bb3 $1 (15... Na6 16. exf5 Bxf5 17. Qa2+ Kh7 18. Rfe1
$14) (15... g5 16. axb4 axb4 17. d5 $1 Bd7 18. dxc6 bxc6 19. Na2 $36) 16. exf5
$1 (16. axb4 axb4) 16... g5 (16... Bxd1 17. Nxd1 $36) 17. axb4 $5 (17. Rd2 gxh4
18. axb4 axb4 19. Ne4 $14) 17... axb4 18. Ne4 Bxd1 19. Bxd1 gxh4 20. Bb3+ Nd5
21. Nc5 {[%csl Rb7,Gg6,Rh4][%cal Gc5e6] mit sichtlicher Kompensation.}) 15.
Bxc4 ({Auch gut war} 15. Rfe1 Bxe2 16. Rxe2 $14) 15... Nxc4 16. a3 Na6 17. Qa2
({Im Fall von} 17. d5 Qc7 18. Qa2 Ne5 {wдre Schwarz in Ordnung.}) 17... b5 $2 (
{Schwarz hдtte das passive} 17... Nd6 18. Rfe1 $14 {bevorzugen sollen, denn
nun gelingt es Weiss, das Zentrum unter gьnstigen Umstдnden zu цffnen.}) 18. d5
Bxc3 ({Peter vertraut auf seinen Nc4, um die gegnerische Initiative in Grenzen
zu halten. Aber wie in den nдchsten Zьgen klar wird, ist die Stabilitдt dieses
Springers nicht garantiert. Ich verbrauchte vor 18.d5 viel Zeit bei der
Betrachtung von} 18... Nxb2 19. Qxb2 b4 {Ich hatte vor, mit} 20. d6 {
fortzusetzen, denn die Alternativen} (20. dxc6 bxc3 21. Qb7 Qc8 22. Bxe7 Re8
23. e5 Qxb7 $1 24. cxb7 Ra7 {[%csl Rb7]}) ({und} 20. axb4 axb4 21. dxc6 bxc3
22. Qb7 Qc8 23. Bxe7 Re8 24. e5 Qxb7 25. cxb7 Ra7 {fьhren bloss zu schwarzem
Vorteil}) {Wдhrend der Partie hatte ich vieles ьbersehen, hier sind aber die
Schlussfolgerungen nach meiner Hausanalyse. Da 20...Bxc3 21.Qc1 nicht gut ist,
muss Schwarz} 20... g5 {[%cal Rh4d8] ziehen. Aber nach} 21. Bg3 bxc3 ({
logischer als} 21... Bxc3 22. Qe2 {[%csl Rg8] , was die zusдtzliche
Mцglichkeit h2-h4 zulдsst}) 22. Qc1 {hat Weiss starken Druck, z.B:} Qb6 (22...
f5 23. exf5 $1 Rxf5 24. Nd4 Bxd4 25. Rxd4 $16) 23. Be5 $1 {[%csl Rc3]} ({nach} 
23. dxe7 Rfe8 24. Bd6 Nc7 {hat Weiss den Bauern c3 noch nicht erobert}) 23...
Bxe5 24. Nxe5 Qb2 (24... exd6 25. Nd7) 25. dxe7 Rfe8 26. Ng4 $1 {[%csl Rf5]
[%cal Gg4h6] und Weiss verbleibt mindestens mit einem Mehrbauern.}) 19. bxc3
Qd7 $6 (19... Qe8 {war prдziser, da nun die Dame auf der d-Linie unter
Beschuss geraten kann. Trotzdem hat Schwarz nach} 20. Nd2 Nd6 (20... Nxd2 21.
Qxd2) 21. dxc6 e6 22. Nf3 {Mьhe, den Bauern c6 zurьckzunehmen.}) 20. a4 $1 {
[%csl Rc4][%cal Gd5c6,Ga4b5,Yf3d4] Dies ist der Zug, den Peter unterschдtzt
hatte. Der schwarze Damenflьgel bricht zusammen.} Nc5 $6 ({20...Nc7 oder 20...
Rfe8 waren vorzuziehen, obwohl Weiss in beiden Fдllen ein klares Ьbergewicht
behдlt:} 20... Nc7 21. dxc6 Qxc6 22. Bxe7 Rfe8 23. Nd4 Qxe4 24. Rfe1 Qb7 25.
Bh4 $1 {[%csl Rb5,Rc4]}) ({oder} 20... Rfe8 21. Nd4 cxd5 22. Nxb5) 21. dxc6
Qxc6 22. Bxe7 ({Ich zцgerte lange zwischen dem Textzug und} 22. axb5 {Dabei
rechnete ich die folgende Variante:} Qxb5 23. Rd4 Nb2 {(?)} 24. Bxe7 Rfb8 25.
Bd6 $1 Qb3 (25... Rb7 26. Rb4 $1 $18) {, verpasste aber den Gewinnzug} 26. Ra1
$1 {Glьcklicherweise, denn mittels 23...Nb3! 24.Rd5 Qb7 kцnnte Schwarz die
Karten neu mischen!}) 22... Rfe8 $6 ({Sie haben es bemerkt, Peter hat keinen
guten Tag erwischt! Zдher war hier} 22... Nxa4 23. Bxf8 Nxc3 (23... Rxf8 24.
Nd4 Qc5 25. Qb3) 24. Qa1 Ne2+ (24... Nxd1 {ist unmцglich wegen} 25. Qg7#) 25.
Kh1 Rxf8 26. Rfe1 Nf4 {, auch wenn die schwarze Stellung nach} 27. Nd4 {
nicht sehr gut aussieht.}) 23. Nd4 Qc8 24. axb5 $1 {[%csl Gc6] Danach besitzt
Weiss nicht nur Materialvorteil. Er dominiert dank des Feldes c6 auch
positionnell.} Nxe4 (24... Rxe7 25. Qxc4 Rxe4 26. Rfe1 {ist nicht besser.}) 25.
Nc6 Ne5 (25... Qe6 {scheitert an} 26. Rfe1) 26. Nxe5 Rxe7 27. Nc6 Re6 $2 ({
... und Peter gab auf, bevor ich meinen Turm auf d8 stellen konnte. Nach} 27...
Re8 {wьrde Weiss mittels} 28. Rd8 {[%cal Gc6e7]} ({oder} 28. Qc4 {gefolgt von
Rfe1}) 28... Qb7 (28... Qc7 29. Rxa8 Rxa8 30. Qd5 $18) 29. Rxe8+ Rxe8 30. Qxa5
{leicht gewinnen.}) 1-0

[Event "RUS-Cup02"]
[Site "Moscow"]
[Date "1998.01.23"]
[Round "3"]
[White "Ulko, Jaroslav"]
[Black "Yandemirov, Valeri"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2420"]
[BlackElo "2545"]
[Annotator "Petursson,M"]
[PlyCount "60"]
[EventDate "1998.01.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 063"]
[Source "ChessBase"]
[SourceDate "1998.03.26"]
[SourceVersion "1"]
[SourceVersionDate "1998.03.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 c5 7. Rc1 Nc6 8.
Nxd5 Qxd5 9. Rxc5 Qxa2 10. Qd2 h6 11. Bh4 g5 12. Bg3 g4 13. Ne5 Nxe5 14. Bxe5
Bxe5 15. dxe5 Bf5 16. f3 Rd8 17. Qc1 b6 18. Rc7 gxf3 19. gxf3 Qd5 20. Qf4 Be6
21. Rxa7 Qc5 22. b4 Qc3+ 23. Kf2 Rg8 24. h4 Rg6 25. Bg2 Kf8 26. h5 Rg5 27. Rc1
Qb2 $15 28. Rcc7 $4 {[%tqu "En","Can youu find a win for Black?","Can you
attack him on the 2nd rank?","Sacrifice the exchange!","g5g2","",10]} Rxg2+ 29.
Kxg2 Qxe2+ 30. Kg3 Qe1+ {After Black checks on d2, White must give up his
queen to avoid mate.} 0-1

[Event "Kharkov Rector Cup 4th"]
[Site "Kharkov"]
[Date "2002.03.24"]
[Round "3"]
[White "Eljanov, Pavel"]
[Black "Kovchan, Alexander"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2540"]
[BlackElo "2507"]
[Annotator "Postny,E"]
[PlyCount "99"]
[EventDate "2002.03.22"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "UKR"]
[EventCategory "13"]
[SourceTitle "CBM 089"]
[Source "ChessBase"]
[SourceDate "2002.08.12"]
[SourceVersion "1"]
[SourceVersionDate "2002.08.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 {A rare move. Other common
possibilities are: 5.Qa4, 5.g3, 5.e4, 5.h4.} Nb6 6. d4 Be6 {Usually black
plays here 6...Bg7 first, but the move in the text leads to a transposition
anyway.} 7. Qc2 Bg7 8. Bg5 {Other options are: 8.Bf4, 8.e4.} h6 {More popular
move here is 8...Nc6.} (8... Nc6 9. Rd1 h6 10. Bh4 O-O 11. e3 Nb4 12. Qb1 Qd7
13. Be2 N4d5 14. O-O Nxc3 15. bxc3 Nd5 16. Qc1 Bf5 $11 {1/2-1/2 Gulko,
B-Tseitlin,M/Beersheba 1993/CBM 38 (21)}) 9. Bh4 O-O 10. e3 $146 (10. e4 Bxd4
11. Nxd4 Qxd4 12. Bxe7 Re8 13. Bh4 Nc6 14. Bb5 Nb4 15. Qd2 c6 16. a3 cxb5 17.
axb4 Qxd2+ 18. Kxd2 g5 19. Bg3 a6 {1/2-1/2 Gulko,B-Bagirov,V/Moscow 1973 (27)})
({The most flexible move seems to be} 10. Rd1 {- see the game Pelletier,
Y-Svidler,P/Biel GM 2001/CBM 85 [Pelletier]}) 10... N8d7 11. Rd1 {This move
prevents, at least for some time, black's possible counterplay with c7-c5
strike.} Rc8 {[%cal Gc7c5]} 12. e4 {Now white is ready to meet c7-c5 with
d4-d5.} (12. Be2 c5 $11) 12... Bg4 13. Be2 Qe8 {Moving the Q out of an
unpleasant pins on "d" file and on h4-d8 diagonal.} 14. O-O c5 $6 {Not the
best choice.} ({More solid is:} 14... e5 15. dxe5 (15. d5 c6 $13) 15... Nxe5 (
15... Bxf3 $6 16. Bxf3 Nxe5 17. Be2 $14) 16. Nxe5 Bxe2 17. Qxe2 Qxe5 $11) 15.
d5 c4 {[%cal Yd7c5]} ({Deserved attention} 15... f5 $5 16. exf5 (16. h3 $2 Bxf3
17. Bxf3 f4 {[%csl Rh4][%cal Rg6g5]}) 16... Bxf5 17. Qc1 Qf7 18. Rfe1 $14) 16.
h3 Bxf3 17. Bxf3 Nc5 (17... Ne5 $6 18. Be2 {[%cal Gf2f4]}) 18. Bg4 {Pair of
good BB and strong pawncentre makes white's position better.} e6 (18... Rd8 19.
Bg3 Nd3 20. Bc7 Ra8 21. b3 $16) 19. dxe6 $2 {This decision is wrong.Now black
gets much more influence in the centre.} (19. d6 {[%cal Gh4e7]} Qd7 20. Be7
Rfe8 21. Be2 $16 {[%csl Yd3][%cal Gf2f4]}) 19... fxe6 $1 {[%csl Yd5]} (19...
Nxe6 $2 20. Nd5 Nxd5 21. exd5 Nd4 22. Rxd4 $1 Bxd4 23. Bxc8 Qxc8 24. Rd1 $16 {
[%csl Gd5]}) 20. Bg3 (20. Be2 Nca4 21. Nxa4 Nxa4 $132) 20... Nd3 21. Bd6 $1 (
21. Be2 Nxb2 $5 (21... Nf4 $132) 22. Qxb2 Na4 23. Nxa4 $1 Bxb2 24. Nxb2 $13)
21... Rf7 22. e5 {Fighting for the initiative. White actually wants to get rid
of his Pe5 in order to open the "e" file as well as b1-h7 diagonal for his
heavy pieces.} (22. Be2 Rd7 $132 (22... Nxb2 $6 23. Qxb2 Na4 24. Nxa4 Bxb2 25.
Nxb2 $14)) 22... Kh7 {protecting the Pg6.} (22... Bxe5 $2 23. Bxe5 Nxe5 24. Ne4
{[%csl Rd6]}) 23. Be2 (23. Qe2 $6 Nd7) 23... Nxe5 24. Bxe5 (24. Qe4 $2 Qc6 25.
Qe3 Nd3 $1 $17) 24... Bxe5 25. Qe4 Bxc3 $2 {This exchange seriously weakens
the defense around the black K, especially when black's pawnstructure on the
kingside is not the best, to say the least.} (25... Qh8 $1 26. Bh5 Rg8 27. Rd8
$1 Qf6 28. Rxg8 Kxg8 29. Bxg6 {with approximately equal chances.}) 26. bxc3 Nd5
(26... Qc6 27. Qe5 Rf5 28. Qg3 Nd5 29. Bg4 $44) 27. Qe5 Rf5 28. Qg3 Qf7 $6 {
This is not the best place for the Q.} (28... Qc6) 29. Bg4 Nf4 (29... Rf6 $2
30. Rxd5 $18 {[%csl Rc8]}) 30. Rd4 Rf8 (30... Rcc5 $5) 31. Re1 Nxg2 $2 {
Black misses white's reply.} (31... Ra5 32. Red1 Kh8 $13) 32. Red1 $1 $18 {
[%cal Rd4d7] This simple intermediate move is a refutation of black's 31...Ng2.
Too many black's pieces are hanging.} Nf4 33. Rd7 h5 34. Rxf7+ $2 {
Surprisingly this obvious capture gives black some counterchances.} ({Simply
winning was} 34. Bxf5 $1 Ne2+ 35. Kg2 Nxg3 36. Bxe6 {and white remains with a
piece up.}) 34... R8xf7 {The game is not over yet, in spite of white's big
material advantage. The Bg4 is trapped.} {[%tqu "En","How should white
continue?","","","g3h2","",10]} 35. Qh2 $1 {The only move, that keeps white's
position winning.} (35. Bf3 $4 Rg5 $1 $19) 35... Rg5 $6 (35... Ra5 {was better
attempt to muddy the waters.} 36. Bf3 Rxa2 (36... Rg5+ 37. Kf1 Nd3 38. Qb8 (38.
Be4 Rxf2+ 39. Qxf2 Nxf2) 38... Rgf5 39. Be4) 37. Qg3 Rc2 38. Rd4 Nxh3+ 39. Qxh3
Rxc3 40. Kg2 (40. Qxe6 $2 Rcxf3) 40... b5 41. Rd6 Rcxf3 42. Qxf3 Rxf3 43. Kxf3
$18 {[%csl Gd6]}) 36. Kf1 {The white K stands now out of black's N check and
the Bg4 is saved.} Nd3 ({The main point of 35.Qh2 is:} 36... hxg4 37. hxg4+ Kg7
38. Rd8 $18 {[%cal Rh2h8]}) (36... Ra5 37. Be2 $18) 37. Bxe6 Rxf2+ 38. Qxf2
Nxf2 39. Kxf2 {Finally white remained with a piece up. The endgame is easily
won.} Re5 40. Bxc4 Rc5 41. Rd4 b5 42. Bd3 Rxc3 43. Rd7+ Kh6 44. Rd6 Kg5 45. Kg3
$1 {Black's K is in the mating net now.} h4+ 46. Kf3 Ra3 47. Rxg6+ Kh5 48. Rd6
Rxa2 49. Bxb5 Ra3+ 50. Kf4 {[%csl Rh5][%cal Rb5e8,Rb5e2]} 1-0

[Event "CUB-ch"]
[Site "Holguin"]
[Date "2002.04.07"]
[Round "7"]
[White "Nogueiras Santiago, Jesus"]
[Black "Herrera, Irisberto"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2521"]
[BlackElo "2474"]
[Annotator "Postny,E"]
[PlyCount "111"]
[EventDate "2002.03.31"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CUB"]
[EventCategory "9"]
[SourceTitle "CBM 089"]
[Source "ChessBase"]
[SourceDate "2002.08.12"]
[SourceVersion "1"]
[SourceVersionDate "2002.08.12"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. Qb3 {This is rare line, but as
practice shows, it's not easy for black to get a good game here.} (5. Qa4+ Bd7
6. Qb3 Nb6 7. d4 Bg7 8. Bg5 Be6 9. Qc2 {may lead to an identical position with
different moves order.}) ({Other popular moves in this position are:} 5. g3) (
5. e4) 5... Nb6 6. d4 Bg7 7. Bg5 Be6 8. Qc2 Nc6 9. Rd1 Nb4 (9... h6 10. Bh4 O-O
11. e3 Nb4 12. Qb1 Qd7 13. Be2 N4d5 14. O-O Nxc3 15. bxc3 Nd5 16. Qc1 Bf5 $11 {
1/2-1/2 Gulko,B-Tseitlin,M/Beersheba 1993/CBM 38 (21)}) 10. Qb1 O-O 11. e3 (11.
e4 Bg4 12. Be2 Bxf3 13. Bxf3 Nc6 14. d5 Ne5 15. Be2 Nec4 16. O-O Qd6 17. b3 Qe5
18. bxc4 Qxg5 19. f4 $14 {1/2-1/2 Gulko,B-Tseshkovsky,V/Barnaul 1984/MCD (31)})
11... N4d5 (11... a5 12. Be2 a4 13. O-O h6 14. Bh4 c6 15. h3 N4d5 16. Rc1 a3
17. Nxd5 Bxd5 18. b3 f5 19. Bg3 Nd7 20. Bc4 $14 {1-0 Karpov,A-Vaganian,R/Riga
1970/URS-ch (42)}) 12. Ne4 $146 {White wants to control both c5 and e5 squares
in order to prevent black's counterplay by breaking white's pawncentre.} (12.
Be2 Rb8 13. O-O Nxc3 14. bxc3 Bc4 15. Bxc4 Nxc4 16. Qb4 Nd6 17. Rfe1 Re8 18. e4
$14 {1/2-1/2 Maki Uuro,M-Varho,I/Espoo 1990/EXT 2000 (76)}) 12... Bf5 ({
An aggressive attempt} 12... h6 13. Bh4 g5 14. Bg3 f5 $6 {doesn't work because
of} 15. Nc5 {[%csl Re6]}) 13. a3 {[%csl Yb4][%cal Yf1d3]} Nd7 $1 {[%csl Yc5,
Ye5]} 14. Bd3 c6 (14... Qc8 $6 {[%cal Gc7c5]} 15. O-O c5 $2 16. Nxc5 Nxc5 17.
Bxf5) 15. O-O Qb6 {Black is preparing e7-e5 strike, so black's Q should stay
out of pins.} 16. Qc2 a5 17. Rd2 e5 {It can be concluded, that white did not
get much after the opening.} 18. dxe5 Nxe5 19. Nxe5 Bxe5 20. Rfd1 (20. Nc5 Bxd3
21. Rxd3 Qxb2 22. Qxb2 Bxb2 23. Rb1 Bg7 24. e4 Nc3 25. Rxb7 Rfb8 $11) 20... Qc7
21. h3 Bg7 $6 {This is inaccuracy.The was no reason to move the Be5 from it's
central position.} ({Logical is} 21... Rfe8 {with approximate equality.}) 22.
Bh4 $1 {[%csl Rd6][%cal Gh4g3] Strong manoeuvre.} Be5 $6 {This inaccuracy has
more serious consequences, then the previous one. Black actually lost two
tempos.} (22... Rfe8 $142 23. Bg3 (23. Nc5 Bxd3 24. Rxd3 f5) 23... Be5 24. Bxe5
Qxe5) 23. Nc5 Bxd3 24. Rxd3 {Black can not prevent the e3-e4 push.} Rfe8 $6 (
24... b6 $142 25. e4 bxc5 26. exd5 cxd5 27. Rxd5 $16) 25. e4 {Driving back the
Nd5 from it's active position.} Nb6 26. a4 $1 {Suddenly black finds himself in
total passivity.} h6 27. f3 g5 28. Bf2 Re7 {Black can not fight for the "d"
file, because of weakness on b7. White is totally dominating.} 29. Kh1 Rb8 30.
Qb3 Kg7 31. Be3 ({Nogueiras could win the pawn already by} 31. Ne6+ Rxe6 32.
Bxb6 Qe7 33. Bxa5 {but probably he was looking for more...}) 31... Ra8 32. Bd4
({Also strong was} 32. R3d2 {[%cal Gc5d3]}) 32... Bxd4 33. Rxd4 Kh7 34. R4d3 (
34. Qc3 $142) 34... Rae8 35. Qc3 Qg3 {[%csl Re1][%cal Gb6d5]} 36. Rg1 (36. Qxa5
Nd5 $1 {[%cal Gd5f4] and black gets some counterchanses.}) 36... Qe5 $6 {
This exchange makes white's task much easier.} ({Better practical chance was} 
36... f5 37. Qxa5 Nc4 38. Qb4 Ne5) 37. Qxe5 Rxe5 38. Rc1 {[%csl Rb6,Rb7][%cal
Gd3b3] The threat 39.Rb3 is unanswerable.} f5 39. Rb3 Nc8 40. Rxb7+ Kg6 41.
exf5+ Kxf5 42. Ne4 {[%csl Ge4] The Ne4 prevents all possible counterplay. All
black's pieces are totally restricted.} R8e6 43. Rf7+ Kg6 44. Rc7 Ne7 45. Kh2 {
There is no need to hurry. White is a pawn ahead and in total control of the
position.} h5 46. Rc4 h4 (46... g4 47. Nc5 {and white will capture the Pg4 on
the next move.}) 47. Rc5 Rd5 48. Rc1 Rd4 49. b3 Rd5 50. Kg1 Ree5 51. Kf2 Re6
52. Rc2 Ree5 53. Re2 Re6 54. Nd2 {[%csl Ra5][%cal Gd2c4] This manoeuvre puts
an end to black's suffering.} Rxe2+ 55. Kxe2 Kf6 56. Nc4 1-0

[Event "Arber op 3rd"]
[Site "Bayerisch Eisenstein"]
[Date "2014.08.21"]
[Round "6"]
[White "Prusikin, Michael"]
[Black "Jansa, Vlastimil"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2524"]
[BlackElo "2438"]
[Annotator "Prusikin,M"]
[PlyCount "91"]
[EventDate "2014.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 dxc4 6. e4 c5 7. d5 b5 8. h5 Nxh5
9. Nxb5 Qa5+ 10. Nc3 Nd7 $5 $146 11. Bd2 Ba6 12. g4 $5 (12. Be2 $5) 12... Nhf6
13. Bh3 $1 (13. e5 $5 Nxg4 14. e6 Nde5 (14... fxe6 15. Ng5 h5 16. Be2 (16. Nxe6
Bd4 $17) 16... Nf8 17. dxe6 Rc8 18. Bf3 $13) 15. Ng5 f5 16. f3 Nf6 17. d6 Bb7
18. f4 {chaos rules}) (13. g5 $5 Ng4 14. d6 exd6 15. Nd5 c3 (15... Qd8 16. Bh3
f5 (16... Nge5 17. Nxe5 Bxe5 18. Qa4 Bb7 19. Ba5 Qc8 20. Nc7+ Ke7 21. f4 Bxb2
22. Rb1 c3 23. Kf2 $18) 17. exf5 gxf5 18. Qc2 $18) 16. Bxc3 Bxc3+ 17. bxc3
O-O-O $13) 13... h5 14. gxh5 Rxh5 $2 (14... Nxh5 $1 15. Bxd7+ Kxd7 16. Ng5 Nf4
$3 (16... Raf8 17. Qg4+ Kd8 (17... Ke8 18. Ne6 fxe6 19. Qxg6+ Kd8 20. Rxh5 $40)
18. d6 $1 exd6 (18... Nf6 19. Qf3 Rxh1+ 20. Qxh1 exd6 21. e5 $18) 19. Nxf7+
Rxf7 20. Qxg6 $14) 17. Qg4+ f5 $8 18. Rxh8 $8 fxg4 (18... Rxh8 19. Qxf4 Rh1+
20. Ke2 Rxa1 21. exf5 Bxc3 22. Bxc3 Qa4 $11) 19. Rxa8 $11) 15. Bxd7+ Nxd7 (
15... Kxd7 16. Rxh5 Nxh5 17. Ng5 Rf8 18. Qg4+ Ke8 19. Ne6 $1 $18) 16. Rxh5 gxh5
17. Ng5 Ne5 18. Qxh5 Qb6 19. Ne6 Bf6 20. Na4 $5 (20. f4 Nd3+ 21. Ke2 $18) 20...
Nd3+ 21. Ke2 Qd6 22. Bc3 $3 (22. Rg1 Kd7 $1 (22... c3 23. Rg8+ Kd7 24. Rxa8 $18
) 23. Qxf7 (23. Nexc5+ Nxc5 24. Qf5+ Ne6 25. Kf3 $11) 23... c3 24. Bxc3 Qh2 $3
(24... Ne5+ 25. Ke3 Nxf7 26. Naxc5+ $18) 25. Naxc5+ $3 Nxc5+ 26. Ke3 Nd3 27.
Nf8+ Kc7 (27... Rxf8 28. Qe6+ Kc7 29. Qxa6 $11) 28. d6+ Qxd6 29. Ne6+ Kd7 30.
Bxf6 Qxe6 31. Qxe6+ Kxe6 32. Bc3 $15) 22... Qxe6 (22... Kd7 23. Qxf7 $18) 23.
dxe6 Nf4+ 24. Kf3 Nxh5 25. Rh1 $18 Bxc3 26. bxc3 fxe6 27. Rxh5 O-O-O 28. Nxc5
Bb7 29. Rh7 Re8 30. Kf4 Bc6 31. Ke5 Bd7 32. f4 Kd8 33. Rh2 Kc7 34. Rd2 Bc8 35.
Nxe6+ Kc6 36. f5 Rh8 37. Rd8 Rxd8 38. Nxd8+ Kc7 39. Ne6+ Kc6 40. Nf4 Kd7 41.
Kd4 Bb7 42. e5 Bf3 43. Kxc4 Bg4 44. f6 exf6 45. exf6 Kd6 46. f7 1-0

[Event "Lienz op 20th"]
[Site "Lienz"]
[Date "2019.02.11"]
[Round "4"]
[White "Prusikin, Michael"]
[Black "Lin, Yi1"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2517"]
[BlackElo "2345"]
[Annotator "Prusikin,M"]
[PlyCount "121"]
[EventDate "2019.02.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

{[%evp 0,19,39,30,30,-1,41,41,73,39,76,24,24,0,0,0,0,0,0,-15,14,-37]} 1. d4 Nf6
2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 c6 6. cxd5 cxd5 7. Bf4 Nc6 8. e3 O-O 9. Ne5
(9. Qb3 $5 Na5 10. Qa3 Nc4 11. Bxc4 dxc4 12. O-O Bd7 13. Ne5 $14 {1/2-1/2 (74)
Fedoseev,V (2724)-Carlsen,M (2835) Wijk aan Zee 2019}) 9... Qb6 (9... Nxe5 10.
Bxe5 Ne4 11. Bxg7 Nxc3 (11... Kxg7 12. h5 $14) 12. bxc3 Kxg7 13. h5 $14) 10. a3
$6 (10. Qb3 $1 Qxb3 (10... Bf5 11. Qxb6 axb6 12. f3 $16 {1-0 (69) Shevchenko,K
(2549)-Goncalves,D (2177) Porto Carras 2018}) 11. axb3 Nb4 12. Kd2 h5 13. Nd3
Nc6 14. f3 Bf5 15. Ne5 Rfc8 16. Bb5 $14 {1-0 (49) Morozevich,A (2748)-Giri,A 
(2720) Beijing 2012}) 10... Ne4 (10... Ng4 $6 11. Na4 Qa5+ 12. b4 Nxb4 13. axb4
Qxb4+ 14. Qd2 Qxd2+ 15. Kxd2 Nxf2 16. Rg1 $14) (10... Nh5 $5 11. Nxc6 $1 $146
bxc6 12. Na4 Qd8 13. Bh2 $14) (10... Nxe5 $5 {0-1 (50) Li,D (2298)-Bai,J (2520)
Zhongshan 2015}) 11. Nxc6 $1 $146 bxc6 12. Na4 $1 (12. Nxe4 $6 dxe4 13. Qc2 c5
$1 $11) 12... Qa5+ 13. b4 Qd8 14. Bd3 $1 a5 15. O-O $1 axb4 16. axb4 (16. Bxe4
$5 dxe4 17. axb4 $14) 16... Ba6 17. Bxa6 Rxa6 18. Qd3 $1 Ra7 (18... Qa8 $2 19.
Nb6 $1 Rxa1 20. Nxa8 Rfxa8 21. Rb1 $16) 19. Nc5 (19. Nc3 $1 $16) 19... Nxc5 20.
bxc5 Qa8 {[#]} (20... Rxa1 21. Rxa1 e5 22. Bxe5 Bxe5 23. dxe5 Qxh4 24. Qa6 $16)
21. Rxa7 $5 {ich wollte die Chnace nutzen, h4-h5 zu spielen} (21. Qc3 $5 $14) (
21. Rab1 $5 $14) 21... Qxa7 22. h5 e5 $6 (22... Ra8 $1 23. Rb1 $14) 23. dxe5 $1
gxh5 (23... Qxc5 24. h6 Bh8 25. Ra1 Qe7 26. Qd4 f6 27. e6 $3 Qxe6 28. Ra7 Rf7
29. Ra8+ Rf8 30. Qa1 $18) 24. Rc1 $6 (24. Qf5 $5 Qxc5 25. Qxh5 d4 {zu viele
Bauern werden hier getauscht} 26. exd4 Qxd4 27. Bg3 Qe4 $11) (24. Qd4 $1 $14)
24... Re8 (24... Qd7 $1 $11) 25. Qf5 $14 Qe7 26. Qxh5 Bxe5 27. Qg4+ Kh8 28. Rb1
Bxf4 $6 29. Qxf4 $16 Kg7 30. Qg4+ Kh8 31. Qd4+ Kg8 (31... Qe5 $2 32. Rb8 $3 $18
) 32. Rb6 Qe6 33. Qf4 $6 {Tempoverlust} (33. Qa4 Rc8 34. Rb4 $16) 33... h6 {[#]
} 34. Qa4 $1 Rc8 35. Rb4 $1 Kh7 36. Rf4 Rg8 37. Qa7 Rg7 38. Qc7 $6 (38. Qb7 $1)
38... f5 $1 $11 39. Qb8 Rg4 $1 40. Rf3 Qe4 (40... d4 $11) 41. Rg3 $1 Rxg3 42.
Qxg3 Qg4 $2 (42... Qc2 $1 $11) 43. Qc7+ Kg8 44. Qd8+ Kf7 45. Qc7+ Kg8 46. g3 $1
Qg6 47. Kf1 Qf6 48. Ke2 $2 (48. Qd7 $18) 48... Kf8 $2 {[#]} (48... Qe6 $11) 49.
Qd7 $1 $18 Qb2+ 50. Kf3 Qe5 (50... Qf6 51. Kf4 Qg5+ 52. Ke5 f4+ 53. Qf5+ $18)
51. Qxc6 Qe4+ 52. Ke2 Qc4+ 53. Ke1 Qc1+ 54. Ke2 Qc4+ 55. Kd2 Qb4+ 56. Kc2 Qc4+
57. Kb2 Qe2+ 58. Ka3 Qxf2 59. Qxh6+ Kf7 60. Qf4 Qc2 61. Kb4 1-0

[Event "Zug Young Masters"]
[Site "Zug"]
[Date "1999.10.11"]
[Round "?"]
[White "Prusikin, Michael"]
[Black "Gormally, Daniel"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2440"]
[BlackElo "2475"]
[Annotator "Prusikin,M"]
[PlyCount "63"]
[EventDate "1999.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "4"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 $5 {eine
brauchbare Nebenvariante} Nxc3 7. bxc3 c5 8. e3 O-O 9. Be2 Qc7 10. O-O b6 11.
Rd1 Bb7 12. Rb1 $5 {natьrlicher erscheint} (12. Bb2 {mit der Idee c3-c4}) 12...
Be4 13. Rb2 Nc6 $6 (13... Nd7) 14. Nd2 $6 {das wirkt gekьnstelt} (14. dxc5 bxc5
15. Qa4 $1 Bxf3 16. Bxf3 $14) 14... Na5 15. Qa3 Bd5 16. e4 Be6 $6 (16... Bb7 $1
) 17. d5 Bd7 18. Nf3 e6 19. d6 {die einzige Chance, um Vorteil zu kдmpfen} Qc6
20. e5 Qa4 21. Qxa4 Bxa4 22. Re1 Rad8 23. Bf4 Bc6 24. Rd2 h6 25. h4 f6 26. exf6
Rxf6 27. Be5 Rf5 28. Bd3 $1 {Diagramm [#]} Rxe5 $6 (28... Bxe5 29. Nxe5 Rxd6
30. Bxf5 Rxd2 31. Bxe6+ Kg7 {fьhrte zum vцlligen Ausgleich}) 29. Nxe5 Rxd6 30.
c4 $1 Bxe5 31. Rxe5 Nxc4 $4 (31... Kg7 32. Ree2 Kf6 {wдre immer noch OK gewesen
}) 32. Rxe6 $1 1-0

[Event "POL-chT 66th"]
[Site "Katowice"]
[Date "2010.09.11"]
[Round "8"]
[White "Sieciechowicz, Marcin"]
[Black "Szelag, Marcin"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2443"]
[BlackElo "2464"]
[Annotator "RR"]
[PlyCount "143"]
[EventDate "2010.09.04"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Prokonex"]
[BlackTeam "Poznan Pocztowiec"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 (6... Nxc3 7.
Bxc3 O-O (7... c5)) 7. Be3 O-O 8. Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Na5 {
[%csl Gc4]} 12. Bd4 Qd6 (12... c5) 13. Bxg7 Kxg7 14. Rc1 (14. Qd2 Qf6 15. h4
Nac4 16. Qc1 e5 17. Nd1 Nd6 18. h5 g5 19. Ne3 Qe7 20. Qd2 f5 21. Qc2 Qf7 22.
Bd3 h6 23. O-O-O Rac8 24. Kb1 c6 25. Qc5 Qe7 26. dxc6 Rxc6 27. Qa5 fxe4 28.
Bxe4 Nbc4 29. Qd5 Rfc8 30. Nxc4 Nxc4 31. Qd7 Na3+ 32. bxa3 Rb6+ 33. Ka1 Rc1+
34. Rxc1 Qxd7 35. Rhd1 Rd6 36. Rxd6 Qxd6 37. Kb2 Qb6+ 38. Ka1 Qxf2 39. Rc7+ Kf8
40. Rc8+ Ke7 41. Rg8 Qd4+ 42. Kb1 Kf7 43. Rg6 Qg1+ {Nikolov,M (2550)-Navara,D 
(2708) Rijeka 2010 0-1}) (14. h4 c6 15. h5 $36 {Shishkin,V (2516)-Duquesnoy,J 
(2186) Calvi Balagne op 07th 2010 (8) 1/2}) 14... Qf6 15. Na4 Nxa4 16. Qxa4
Qxb2 17. Rxc7 b6 $13 {[%csl Re1]} 18. Ba6 $1 {[%csl Ga6,Gc8]} b5 $1 (18... Qb1+
19. Qd1 Qxa2 20. O-O) 19. Qc2 (19. Qxb5 Qa1+ 20. Ke2 Qxh1 21. Qxa5 Qa1 (21...
Qxh2 $2 22. Rxe7) 22. Rxe7 Rab8 $36 {[%csl Re2][%cal Gb8b2]}) 19... Qxc2 20.
Rxc2 Rab8 21. O-O $146 (21. Rc7 e6 22. O-O exd5 23. Rc5 dxe4 24. fxe4 Rb6 25.
Bxb5 Nb7 26. Rd5 Rc8 27. f3 Rc3 28. Rf2 Nc5 29. Bf1 a5 30. Rd4 Rb1 31. Kg2 a4
32. Rc4 Rbc1 33. Rxc3 Rxc3 34. Rd2 Kf6 35. Rd5 a3 36. h4 Ke6 37. Rd4 Ke5 38.
Rc4 Rxc4 39. Bxc4 Kf4 40. Bxf7 Nd3 41. Bg8 h6 42. e5 Nxe5 43. Bd5 Nd3 44. Be4
Nb4 45. Bb1 Ke3 46. Kg3 g5 47. hxg5 hxg5 48. Kg4 Ke2 49. Kxg5 Kxf3 50. Kf5 Ke3
{Peuraniemi,P (2440)-Szczepankiewicz,D (2490) ICCF email 2005 1/2-1/2}) 21...
Rb6 $1 22. Bc8 Nc4 23. Bh3 g5 $15 {[%csl Gf4]} 24. Rfc1 Ne5 25. Rc7 Nxf3+ 26.
Kg2 Ne5 27. Bf5 Kf6 28. Rxa7 h5 29. Bd7 e6 30. Rcc7 Rd8 (30... Nd3 $5 {[%cal
Gd3f4,Gf4g2]}) 31. Bc6 b4 {[%csl Ra2]} 32. Rcb7 Rb8 33. Rxb8 Rxb8 34. Ba4 Rc8
35. d6 Rc3 $1 {[%cal Gc3d3] Un coup multifonction pour placer la R derrière
le P passé tout en empêchant le K Blanc de monter} 36. d7 Rd3 $8 37. Bb5 Rd4
38. Rb7 Ke7 39. h4 g4 (39... f6 40. hxg5 fxg5 {[%csl Gh5]}) 40. Rb8 (40. Kg3
Rxe4) 40... Nxd7 41. Rb7 f6 42. Bxd7 Rxd7 43. Rxb4 Rd2 $1 {[%csl Ra2,Gd2] La
finale de R est un peu meilleure pour les Noirs} 44. Ra4 Kd6 45. Ra5 e5 46.
Ra6+ Ke7 47. Ra3 Rd4 48. f3 Kf7 49. Kg3 Kg6 50. fxg4 hxg4 51. Kxg4 Rxe4+ 52.
Kg3 f5 $17 {[%csl Ra2,Ge5,Gf5,Rh4][%cal Gg6h5]} 53. Ra8 $8 Re3+ $1 {[%cal
Gg6h5,Gh5g4]} 54. Kg2 $2 (54. Kf2 $8 {Gagne un tempo important} f4 55. a4 Kh5
56. a5 Kxh4 57. a6 Ra3 58. a7 {[%cal Ga8h8]}) 54... Kh5 $19 55. Kf2 f4 56. a4
Kxh4 57. a5 Kg4 58. a6 Ra3 59. a7 Ra2+ 60. Ke1 Kf3 61. Re8 Rxa7 62. Rxe5 Ra1+
63. Kd2 Kf2 64. Re8 f3 65. Rh8 Ra7 66. Rg8 Rd7+ 67. Kc2 Kf1 68. Kc3 f2 69. Rg6
Rd5 70. Kc4 Rf5 71. Kc3 Ke2 72. Kd4 0-1

[Event "Bundesliga 1112"]
[Site "Germany"]
[Date "2011.11.20"]
[Round "5.6"]
[White "Galyas, Miklos"]
[Black "Naumann, Alexander"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2458"]
[BlackElo "2546"]
[Annotator "RR"]
[PlyCount "110"]
[EventDate "2011.10.14"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 146"]
[Source "ChessBase"]
[SourceDate "2012.01.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.01.18"]
[SourceQuality "1"]
[WhiteTeam "Trier"]
[BlackTeam "Solingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Bd7 6. Qb3 dxc4 7. Qxc4 O-O 8.
Bf4 Na6 9. e4 c5 10. e5 Be6 11. exf6 Bxc4 12. fxg7 Kxg7 13. Bxc4 cxd4 14. Rd1
Qa5 15. Be5+ f6 16. Bxd4 e5 17. Be3 Rfd8 18. O-O Nb4 19. a3 Nc2 20. Bd2 Nd4 21.
Nxd4 Rxd4 22. Be2 Rad8 23. Be3 Rxd1 24. Bxd1 b5 25. Na2 Rd2 26. b4 Qd8 27. Bb3
Rd3 28. Nc1 Rxe3 29. fxe3 Qd2 30. Rd1 Qxe3+ 31. Kf1 e4 32. Bd5 f5 33. Ne2 Qxa3
34. Bc6 Qxb4 35. Rd7+ Kf6 36. Rxa7 e3 37. Ra1 Qd6 $2 (37... Qd2 38. Bxb5 Qb2)
38. Bxb5 $19 Qxh2 39. Ra3 Qb8 40. Rb3 h5 41. Bc4 Qe5 $6 (41... Qc7 42. Rc3 h4)
42. Bd3 $19 h4 43. Rb6+ Kg7 44. Rb4 h3 45. gxh3 Qd5 46. Nd4 f4 47. Kg1 f3 48.
Nxf3 Qxf3 49. Rb2 Qxh3 50. Rg2 Qd7 51. Bc2 Qd4 52. Kf1 Qf4+ 53. Ke2 g5 54. Bb3
g4 55. Be6 Qf3+ 0-1

[Event "Cappelle op 31st"]
[Site "Cappelle la Grande"]
[Date "2015.03.07"]
[Round "9"]
[White "Landa, Konstantin"]
[Black "Gao, Rui"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2650"]
[BlackElo "2533"]
[Annotator "RR"]
[PlyCount "97"]
[EventDate "2015.02.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 {[%emt 0:10:07]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:11]} g6 {
[%emt 0:00:41]} 3. Nc3 {[%emt 0:00:30]} d5 {[%emt 0:00:26]} 4. cxd5 {[%emt 0:
00:15]} Nxd5 {[%emt 0:00:03]} 5. Qb3 {[%emt 0:00:10]} (5. e4) (5. Qa4+ {
La grande ligne} Bd7 6. Qh4) 5... Nb6 {[%emt 0:00:14]} (5... Nxc3 6. Qxc3 $14 {
[%cal Gc3h8]}) 6. d4 {[%emt 0:00:07] Transposant d'une anglaise vers une
Gruenfeld mais en ayant évité l'échange Nc3} Bg7 {[%emt 0:00:38]} 7. Bf4 {
[%emt 0:01:04]} O-O {[%emt 0:10:55]} 8. e3 {[%emt 0:06:32]} Be6 {[%emt 0:01:15]
} 9. Qa3 $5 {[%emt 0:00:35]} Nc6 {[%emt 0:01:09]} 10. Be2 {[%emt 0:07:54]} (10.
Rd1 $5 {[%cal Gd1d8]}) 10... a5 {[%emt 0:01:29]} 11. O-O {[%emt 0:00:53]} Nb4 {
[%emt 0:02:22]} 12. Rfc1 {[%emt 0:00:51]} c6 {[%emt 0:01:39]} 13. Be5 {[%emt 0:
02:55]} (13. b3 N6d5 14. Nxd5 Bxd5 {1/2-1/2 (14) Laznicka,V (2670)-Vovk,Y 
(2588) Jerusalem 2015}) 13... Nc4 {[%emt 0:24:03]} (13... Bh6 14. Ne4 Nd7 15.
Nc5 Nxc5 16. Rxc5 {Kramnik,V (2800)-Nakamura,H (2758) Moscow Tal Memorial 6th
2011 (6) 1/2} (16. dxc5 Bd5)) 14. Bxc4 {[%emt 0:00:57]} Bxc4 {[%emt 0:00:05]}
15. Bxg7 {[%emt 0:07:37]} Kxg7 {[%emt 0:00:04]} 16. Qa4 {[%emt 0:00:13]} Bd3
$146 {[%emt 0:14:14]} (16... Be6 17. Ne4 Bd5 18. Ned2 f6 19. a3 Na6 20. Qc2 Nc7
21. e4 Bf7 22. d5 Rc8 23. dxc6 Nb5 24. Qa4 bxc6 25. Rd1 e5 26. Nc4 Qc7 27. Rac1
Bxc4 28. Qxc4 Rfd8 29. h3 Nd6 30. Qc2 Qb6 31. Rd3 Rb8 32. Rcd1 Nf7 33. Rxd8
Rxd8 34. Rxd8 Nxd8 35. Nd2 Ne6 36. Qb3 Qxb3 37. Nxb3 a4 38. Na5 Nc5 39. f3 Kf7
40. Kf1 Ke6 41. Ke2 Kd6 42. Nc4+ Kc7 43. Kd2 Ne6 44. Kc3 Nf4 45. Ne3 c5 46. b3
{Borovikov,V (2579)-Firat,B (2405) Cappelle la Grande 2012 1/2-1/2 (64)}) 17.
Qb3 {[%emt 0:09:17]} Bf5 {[%emt 0:00:38]} 18. a3 {[%emt 0:01:11]} Be6 {[%emt 0:
00:40]} 19. Qd1 {[%emt 0:00:43]} Nd5 {[%emt 0:00:20]} 20. Na4 {[%emt 0:00:38]}
(20. Ne4) 20... Bg4 {[%emt 0:00:31]} 21. h3 {[%emt 0:00:26]} Bxf3 {[%emt 0:00:
06]} 22. Qxf3 $14 {[%emt 0:00:01] La position Noire est assez passive et les
Blancs ont le centre ainsi qu'une petite avance de développement,} e6 $6 {
[%emt 0:03:25]} (22... h5 23. Nc5 Qc7 24. Qxd5 $1 cxd5 25. Ne6+) 23. Qg3 {
[%emt 0:02:58]} Qb8 {[%emt 0:05:07]} 24. Qxb8 {[%emt 0:02:56]} Rfxb8 {[%emt 0:
00:08] Malgré l'échange des Q, la finale reste un peu meilleure pour les
Blancs} 25. Rc2 {[%emt 0:02:55]} h5 {[%emt 0:00:44]} 26. h4 {[%emt 0:01:32]} (
26. Rac1 $143 h4 $132 {[%csl Rg2,Rh3]}) 26... Kf8 {[%emt 0:00:16]} 27. Kf1 {
[%emt 0:06:41]} Ke7 {[%emt 0:00:59]} 28. Ke2 {[%emt 0:00:09]} Nf6 {[%emt 0:04:
35]} 29. Rd1 {[%emt 0:05:58]} (29. f3) 29... Rg8 $6 {[%emt 0:07:23]} 30. Rd3 {
[%emt 0:07:28]} Nd7 {[%emt 0:06:15]} 31. Rb3 {[%emt 0:01:33]} Ra7 {[%emt 0:00:
10]} 32. g3 {[%emt 0:01:26]} Rd8 {[%emt 0:06:33]} 33. Rd3 {[%emt 0:05:07]} Nf6
{[%emt 0:01:49]} 34. f3 {[%emt 0:02:18]} Rg8 {[%emt 0:01:52]} 35. Kf2 {[%emt 0:
00:46]} Rd8 {[%emt 0:02:06]} 36. e4 {[%emt 0:04:08]} e5 {[%emt 0:01:11]} 37.
Ke3 {[%emt 0:00:55]} exd4+ {[%emt 0:00:57]} 38. Rxd4 {[%emt 0:00:00]} Rxd4 {
[%emt 0:00:35]} 39. Kxd4 {[%emt 0:00:00]} Nd7 {[%emt 0:00:13]} 40. Nc5 {
[%emt 0:00:00]} b6 {[%emt 0:00:00]} 41. Nd3 {[%emt 0:02:04]} Kd6 {[%emt 0:07:
49]} 42. e5+ {[%emt 0:04:39]} Kc7 {[%emt 0:00:42]} 43. g4 {[%emt 0:02:13]} f6
$2 {[%emt 0:06:52]} (43... Ra8 {[%cal Ga8d8]}) 44. exf6 {[%emt 0:07:49]} Nxf6 {
[%emt 0:02:02]} 45. g5 {[%emt 0:06:31]} Nd5 {[%emt 0:00:11]} 46. Ne5 {[%emt 0:
01:00]} Ne7 {[%emt 0:03:45]} 47. Nxc6 {[%emt 0:00:12]} Nf5+ {[%emt 0:02:56]}
48. Ke5 {[%emt 0:00:44]} Ra8 {[%emt 0:01:45]} 49. Ne7+ {[%emt 0:00:28]} 1-0

[Event "Bundesliga 1112"]
[Site "Germany"]
[Date "2011.11.19"]
[Round "4.5"]
[White "Gordon, Stephen J"]
[Black "Bok, Benjamin"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2535"]
[BlackElo "2488"]
[Annotator "RR"]
[PlyCount "55"]
[EventDate "2011.10.14"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 146"]
[Source "ChessBase"]
[SourceDate "2012.01.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.01.18"]
[SourceQuality "1"]
[WhiteTeam "Trier"]
[BlackTeam "Remagen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 Bg4 8.
Bb5+ c6 9. Ng5 O-O 10. Be2 Bxe2 11. Nxe2 N8d7 12. Qh3 h6 13. Nf3 h5 14. e5 c5
15. e6 cxd4 16. exf7+ Rxf7 17. Ng5 Rf5 18. g4 Rxg5 19. Bxg5 Ne5 20. Nf4 Nbc4
21. gxh5 Qa5+ 22. Kf1 Nd2+ 23. Kg2 Nf7 24. Bxe7 g5 25. Qg4 $1 (25. Ne6 $2)
25... Re8 $2 (25... gxf4 26. Bf6 Qd5+) 26. Rhe1 $1 $18 (26. Ng6 $2) 26... Rxe7
27. Rxe7 Nh6 28. Qe6+ 1-0

[Event "Budapest FS03 GM"]
[Site "Budapest"]
[Date "1993.??.??"]
[Round "11"]
[White "Horvath, Jozsef"]
[Black "Leko, Peter"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2535"]
[BlackElo "2555"]
[Annotator "Ribli,Z"]
[PlyCount "91"]
[EventDate "1993.03.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[EventCategory "8"]
[SourceTitle "CBM 037"]
[Source "ChessBase"]
[SourceDate "1993.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.12.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bg5 O-O $6 (
7... Be6 $5 $13 {Gausel,E-Hellers,F/Skei/1993/CBM36/}) (7... h6 $5) 8. Rd1 Bg4
9. e3 $1 N8d7 10. Be2 c6 11. O-O Nf6 12. e4 $1 Be6 13. Qc2 Bc4 14. Bxc4 Nxc4
15. Na4 Nb6 16. Nc5 $14 Qc7 17. Rfe1 Rfe8 18. Qb3 Nfd7 19. Nd3 Rad8 (19... e5
20. Ndxe5 Nxe5 21. Nxe5 Bxe5 22. dxe5 Qxe5 23. f4 $16) 20. Bf4 Qc8 21. Rc1 Qa8
22. a4 $1 $16 Nf8 23. Bc7 Rxd4 (23... Rc8 24. Bxb6 axb6 25. Nde5 e6 26. Nc4 $18
) 24. Nxd4 Bxd4 25. Be5 Ne6 26. a5 Nd7 27. Bxd4 Nxd4 28. Qa4 Ne6 29. Qc4 a6 30.
b4 Qb8 31. Qc3 Qc7 32. Rcd1 Rc8 33. Rd2 h5 34. Red1 Nf6 35. f3 Nd7 36. Nb2 Ne5
37. Na4 g5 38. Nb6 Re8 39. Nd7 Ng6 40. Nc5 Nef8 41. Qe3 Nf4 42. e5 $1 Qc8 43.
h4 N8g6 44. e6 gxh4 45. Rd7 f6 46. R1d4 1-0

[Event "Hastings 9293"]
[Site "Hastings"]
[Date "1992.??.??"]
[Round "12"]
[White "Sadler, Matthew D"]
[Black "Gurevich, Ilya"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2515"]
[BlackElo "2510"]
[Annotator "Ribli,Z"]
[PlyCount "59"]
[EventDate "1992.12.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "ENG"]
[EventCategory "13"]
[SourceTitle "CBM 033"]
[Source "ChessBase"]
[SourceDate "1993.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.04.01"]
[SourceQuality "1"]

1. Nf3 {Ftacnik} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7.
Bg5 $5 h6 (7... Be6 8. Qc2 O-O 9. Rd1 c6 $14 {Savon,V-Lhagvasuren,C
Cheliabinsk 1991 CBM/25}) 8. Bh4 Be6 9. Qc2 Nc6 10. Rd1 Nb4 11. Qb1 O-O 12. e3
Bf5 13. e4 Bg4 14. d5 {-> D 90} f5 $2 (14... g5 $5 15. Bg3 f5 16. a3 f4 $1 17.
axb4 fxg3 18. hxg3 Rxf3 $1 19. gxf3 Bxf3 20. Rh2 Bxd1 21. Qxd1 a5 $13 {
Tisdall-Jansa Arhus 1983 35/570}) 15. a3 $1 fxe4 (15... Na6 {Ftacnik} 16. h3 $1
Bh5 (16... Bxf3 17. gxf3 g5 18. Bg3 f4 19. Bh2 $14) 17. exf5) 16. Qxe4 Bxf3 17.
gxf3 g5 18. axb4 gxh4 19. Rg1 $1 $16 Qd6 20. Bd3 $1 Rf7 21. Rg6 Rf6 (21... Qf4
22. Rxg7+ $1 Kxg7 23. Qh7+ Kf6 24. Qg6+ Ke5 25. Qe6+ $18) 22. Rg4 $1 Rf7 23.
Ke2 h5 24. Rg5 Qh6 25. Rg6 Qh8 26. Rdg1 Rd8 27. Qxh4 Kf8 28. Be4 Bxc3 29. bxc3
Rf6 30. Qxh5 $1 (30. Qxh5 $1 {Ftacnik} Qxh5 31. Rg8+ Kf7 32. R1g7#) 1-0

[Event "Cheliabinsk"]
[Site "Cheliabinsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Savon, Vladimir A"]
[Black "Lhagvasuren, Cedendemberel"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2465"]
[BlackElo "2350"]
[Annotator "Ribli,Z"]
[PlyCount "103"]
[EventDate "1991.??.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "7"]
[SourceTitle "CBM 025"]
[Source "ChessBase"]
[SourceDate "1991.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.12.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qa4+ Bd7 6. Qb3 Nb6 7. d4 (7. g3
Bg7 8. d3 Nc6 9. Bg2 O-O 10. O-O e5 11. Be3 Nd4 12. Bxd4 exd4 13. Ne4 Re8 14.
Qc2 $13 {Gross,S-Stohl,I Rimavska Sobota 1990 EXP/20}) 7... Bg7 (7... Be6 8.
Qd1 (8. Qc2 $1) 8... Bg7 9. Bf4 O-O 10. e3 c5 11. Be2 cxd4 12. Nxd4 Bd5 13. Nf3
Bc4 $10 {Gausel,E-Bjerring,K Gausdal Troll Masters 1990 EXP/16}) 8. Bg5 Be6 9.
Qc2 $1 O-O 10. Rd1 c6 11. e4 Bg4 12. Qd2 Qc7 13. Be2 Re8 14. O-O N8d7 15. h3
Bxf3 16. Bxf3 Nf8 (16... e5 17. d5 cxd5 18. Nxd5 Nxd5 19. Qxd5 $14) 17. b3 Rad8
18. Ne2 Rd7 19. Qa5 Nc8 20. Qc3 Ne6 21. Be3 c5 22. Bg4 Nxd4 23. Nxd4 cxd4 24.
Qxc7 Rxc7 25. Bxd4 Bxd4 26. Rxd4 h5 27. Bf3 e5 28. Rd2 Ne7 29. Be2 Rec8 30. Bc4
Nc6 31. Rfd1 Kg7 32. Rd5 Re7 33. Rd6 Rcc7 34. a4 b6 35. g3 Na5 36. Bd5 Nb7 37.
Rc6 Rxc6 38. Bxc6 Nc5 39. b4 Ne6 40. Bd5 Kf6 41. Rc1 Nd4 42. Kg2 Rd7 43. Rc8
Ke7 44. f4 exf4 45. gxf4 Ne6 46. Kf3 Rd8 47. Bxe6 fxe6 48. Rxd8 Kxd8 49. Kg3 b5
50. axb5 Kc7 51. Kh4 Kb6 52. Kg5 1-0

[Event "Volgograd"]
[Site "Volgograd"]
[Date "1994.??.??"]
[Round "3"]
[White "Poluljahov, Aleksandr"]
[Black "Yandemirov, Valeri"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2510"]
[BlackElo "2510"]
[Annotator "Ribli,Z"]
[PlyCount "43"]
[EventDate "1994.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "8"]
[SourceTitle "CBM 041"]
[Source "ChessBase"]
[SourceDate "1994.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.08.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 {-> D90} Bg7 (6...
Be6 $5) 7. Bf4 O-O (7... Bg4 $6 8. Ng5 O-O 9. h3 $14 {Speelman,J-Gurevich,I/
Hastings/1992/INF56,553/}) 8. Rd1 Nc6 (8... a5 $5 $13 {Tregubov,P-Shmuter,L/
Sochi/1993/CBM38/}) 9. d5 Na5 10. Qb4 (10. Qc2) 10... Nac4 11. e4 Nxb2 (11...
a5 12. Qb3 $1 (12. Qc5 $2 Nxb2 13. Bxc7 Bxc3+ 14. Qxc3 Nxd1 15. Kxd1 Na4 (15...
Nxd5 $5 $17) 16. Qc2 Qe8 $17) 12... a4 13. Qb4 $14) 12. Rd2 $5 (12. Qxb2 Na4
13. Nxa4 Bxb2 14. Nxb2 c6 15. Bc4 $14) 12... Bxc3 13. Qxc3 N2a4 14. Qa3 $1 $44
(14. Qxc7 Qxc7 15. Bxc7 Bd7 $10) 14... Bd7 15. Be2 a6 16. O-O Bb5 17. Rc1 Rc8
18. Bd1 $1 Qd7 19. Nd4 (19. Ne5 Qd6 20. Qg3 $44) 19... Rfd8 20. Ne6 $1 Re8 (
20... fxe6 21. Bg4 Qe8 22. Bxe6+ Kg7 23. Be5+ $18) 21. Qh3 c6 (21... fxe6 22.
dxe6 $18) 22. Qh6 (22. Qh6 fxe6 23. Be5 $18) 1-0

[Event "Bucharest Kings 7th"]
[Site "Bucharest"]
[Date "2013.10.07"]
[Round "1"]
[White "Nisipeanu, Liviu Dieter"]
[Black "Caruana, Fabiano"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2674"]
[BlackElo "2779"]
[Annotator "Rogozenco,D"]
[PlyCount "114"]
[EventDate "2013.10.07"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "ROU"]
[EventCategory "20"]
[SourceTitle "CBM 157"]
[Source "ChessBase"]
[SourceDate "2013.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 {A move popularised mainly by
the Rusian GM Alexander Morozevich. The main purpose is to avoid the endless
theory of the Grьnfeld.} c6 6. Bg5 O-O 7. Bxf6 Bxf6 8. h5 g5 ({Earlier this
year Magnus Carlsen played differently:} 8... Bf5 9. e3 e6 10. hxg6 Bxg6 11.
Bd3 Nd7 12. Qe2 e5 13. Bxg6 hxg6 14. dxe5 Nxe5 15. cxd5 cxd5 16. Rd1 Qa5 17.
Kf1 Rad8 18. Nd4 Qc5 19. Nb3 Qc6 20. Na5 Qc7 21. Nb3 Qc6 22. Na5 Qc7 23. Nb3
Qc6 {draw, Grischuk,A (2764)-Carlsen,M (2872) London 2013. However, Caruana
wasn't willing to see what improvement had been prepared by Nisipeanu.}) 9. e4
{A new move. After the game Nisipeanu agreed that the previously met 9.h6 is
more logical.} dxe4 10. Nxe4 h6 ({The computer's recommendation} 10... g4 11.
Nxf6+ exf6 12. Nh4 Re8+ 13. Be2 Re4 {looks dubious for Black. For instance
after} 14. O-O Rxd4 15. Qc2 {White has good compensation for the pawn.}) 11.
Nxf6+ exf6 12. Qd2 Re8+ ({After the immediate} 12... Bg4 {White could consider
castling long at once} 13. O-O-O {since} Bxf3 14. gxf3 {with the idea f3-f4
secures White an initiative on the kingside.}) 13. Be2 Bg4 14. O-O-O Nd7 15.
Rhe1 $5 Qc7 ({Caruana rejects the pawn sac. After} 15... Bxh5 16. Rh1 Bxf3 {
White can consider even} 17. gxf3 {with the idea f3-f4.} (17. Bxf3 {is
possible too, with compensation for the pawn.})) 16. g3 b5 {Black starts
active actions in the centre and on the queenside. White's pawn structure
might seem better, but in reality Black has easier play: his king is safe and
he will soon create targets for attack on the queeenside.} (16... Bxh5 17. Rh1
Bg6 18. Rxh6 Kg7 {was another attractive alternative.}) 17. cxb5 cxb5+ 18. Kb1
Nb6 ({Here} 18... Bxh5 19. Rh1 Bg6+ {looked even stronger than on the previous
comment. However, the move played in the game also keeps the advantage.}) 19.
Nh2 Nc4 20. Qd3 Rxe2 {This is just a temporary exchange sac.} 21. Rxe2 Bxh5 $1
22. f4 (22. f3 Bg6 23. Re4 Qxg3 {is winning for Black.}) 22... Bxe2 23. Qxe2
Kg7 (23... f5 {looks stronger, not allowing White to activate the knight.}) 24.
Ng4 Rc8 25. Nxh6 $1 {This combination should have led to a draw.} Kxh6 26. Rh1+
Kg6 (26... Kg7 27. Qh2 Kf8 28. Re1 Kg7 29. Rh1 $11) 27. Qc2+ $2 {Instead of
this White had more than one way to achieve a draw.} ({The easiest is} 27. Qh5+
Kf5 28. Qe2 $1 {(threatening g4 followed by Qh2).} Kg6 29. Qh5+ Kf5 30. Qe2 $11
) 27... f5 28. Qh2 Kf6 29. Qh6+ (29. Re1 $2 Kg7 $19) 29... Ke7 30. Qxg5+ Kd7
31. Qxf5+ Kc6 32. Qc5+ Kb7 33. Qxb5+ Nb6 {Three pawns for the knight don't
secure complete compensation here: it is Black who plays for a win.
Nisipeanu's task was even more difficult due to his severe time trouble.} 34.
Qd3 Qc6 35. Re1 Rc7 36. a3 a5 37. g4 Nc4 38. Ka2 a4 39. d5 $6 Qf6 40. Qc3 $2 (
40. Re2 Qxf4 41. Re4 Qc1 42. Qe2 {would have allowed White to put up much
tougher resistance.}) 40... Qxc3 41. bxc3 Kb6 {The endgame is lost for White.}
42. g5 Nd6 43. Rb1+ Kc5 44. Rb4 Ra7 45. Kb2 Nc4+ 46. Ka2 Ne3 47. Rb8 Nxd5 48.
f5 Ne7 49. Re8 Kc4 50. f6 Ng6 51. Kb2 Ra5 52. Rc8+ Kd5 53. c4+ Kd4 54. Rc7 Ne5
55. Kc2 Rc5 56. Ra7 Rxc4+ 57. Kd1 Kd5 0-1

[Event "GBR-ch KO"]
[Site "London"]
[Date "2015.12.08"]
[Round "3.5"]
[White "Pert, Nicholas"]
[Black "Howell, David"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2569"]
[BlackElo "2693"]
[Annotator "Sagar Shah/CB Website"]
[PlyCount "53"]
[EventDate "2015.12.01"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "ENG"]
[SourceTitle "CBM 170"]
[Source "ChessBase"]
[SourceDate "2016.01.15"]
[SourceVersion "1"]
[SourceVersionDate "2016.01.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. h4 $5 {Pert tries to play an
aggressive system in this almost must-win situation.} c6 {David is as solid as
can be.} 6. cxd5 cxd5 7. Bf4 Nc6 8. e3 O-O 9. Ne5 Nxe5 10. Bxe5 Ne4 11. Bxg7
Nxc3 12. bxc3 Kxg7 13. Bd3 (13. h5 $1 {What I do not understand is why Nick
didn't push his h-pawn. The h-file will be opened and White could get decent
attcking chances.}) 13... h5 {Now the h-file cannot be opened and the position
is just equal.} 14. Qb3 Qd6 15. O-O Rb8 16. Rfc1 Bd7 17. Qb4 Qxb4 {Howell
thought for a long time before making this exchange of queens.} 18. cxb4 Rfc8
19. Rc5 Rxc5 (19... b6 20. Rxd5 Rc7 $44) 20. bxc5 b5 21. a3 Bc6 22. Kf1 f5 23.
Ke2 Kf6 24. Kd2 a5 25. Kc3 e5 26. f4 e4 27. Be2 {The draw was agreed as there
was no real way to open up the position.} 1/2-1/2

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.20"]
[Round "7.2"]
[White "Novikov, Igor A"]
[Black "Holzke, Frank"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2614"]
[BlackElo "2448"]
[Annotator "Sander,R"]
[PlyCount "48"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 O-O 8.
Be2 Nc6 9. Nf3 Bg4 10. d5 Bxf3 11. Bxf3 Ne5 12. Be2 Nec4 13. Bc1 c6 14. dxc6
bxc6 15. Qc2 Qd4 16. O-O Rfd8 17. a4 Qc5 18. Nb1 (18. b3 Nd6 $17 19. Be3 $2
Qxc3) 18... Qb4 19. Ra2 Na5 20. Nd2 Rd7 21. Nf3 Rad8 22. h3 Nbc4 23. Bxc4 Nxc4
24. b3 Ne5 1/2-1/2

[Event "Tata Steel-B 73rd"]
[Site "Wijk aan Zee"]
[Date "2011.01.21"]
[Round "6"]
[White "Fressinet, Laurent"]
[Black "So, Wesley"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2707"]
[BlackElo "2673"]
[Annotator "So,Wesley"]
[PlyCount "84"]
[EventDate "2011.01.14"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "17"]
[SourceTitle "CBM 141"]
[Source "ChessBase"]
[SourceDate "2011.03.17"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.17"]
[SourceQuality "1"]

{I had just won in the previous round against Ganguly and was on +1. I was
feeling a little bit ambitious and thought I should try for more if the
opportunity should arise, whichs is what I usually do in all of my games.} 1.
Nf3 Nf6 2. c4 g6 3. Nc3 d5 {The only problem with the Grьnfeld is that a
serious player with White can have many surprises against it but still many
people play the Grьnfeld as if nothing is going to happen. Recently I have
become one of them.} 4. cxd5 Nxd5 5. Qb3 $5 {My opponent,the current French
Champion Laurent Fressinet plays so many lines that this came unexpected for
me. Since I've been playing the Grьnfeld a lot recently, I suppose he had
prepared something and I have to be a bit careful.} Nb6 6. d4 Bg7 7. e4 Bg4 $5
{I wanted to pressurize d4 immediately thus this slight change of move-order.}
({The main line, with lots of games played today is} 7... O-O 8. Be3 Bg4 {
but then White gets time to firmly defend his d4-pawn by} 9. Rd1 {and I expect
that White will remain with a slightly better position.} ({Or} 9. O-O-O)) 8.
Be3 $5 {Ignoring the d4-pawn. White just sacrifices it for a lead in
development. I'm not sure if it is completely sound, but what's more important
is that it gave me confidence to play for a win, since now I win a pawn!} Bxf3
9. gxf3 Bxd4 {The pin on the d-file is not so dangerous, because I can
supportthe bishop with ...e5 or ...c5. White's main compensation lies in his
light-square control and the quite vulnerable position of the black king. Here
my opponent seemed to be surprised and he used up a lot of time. He looked as
though the position was strange to him, even though we're just on the 9th move!
} 10. O-O-O e5 ({Perhaps more accurate is} 10... Bxe3+ 11. fxe3 N8d7 {as my
computer suggests, but to my common sense, I think White has compensation after
} 12. h4 e6 13. h5 $44 {because he controls the center, has a useful
light-squared bishop which can be activated after an eventual f4-e5, and an
unpleasant timely Nc3-b5 (preferably after Kb1) to hit the pawns on c7 and a7.}
) 11. h4 Bxe3+ ({Perhaps a simpler way to equalization is just to return the
pawn:} 11... Qe7 12. h5 N8d7 {and Black will safely castle queenside next. But
understandably during the game, I didn't want to return the pawn!}) 12. fxe3
Qf6 13. h5 $1 {Very powerful, I thought during the game. And it really is. Now
I cannot understand what is going on.} g5 $5 {I did not like the position
which would arise if I castle kingside now, so I decided to just play this
move and see what happened.} ({White has good attacking chances after:} 13...
O-O 14. hxg6 hxg6 15. Qc2 $1 Nc6 (15... Qxf3 $2 16. Qh2 Qh5 17. Qg2 $18) 16.
Qh2 Rfd8 17. Be2 Rxd1+ 18. Nxd1 $132 {because my king will always remain under
some pressure.}) 14. f4 $5 {I didn't know that my opponent was also in such a
fighting mood that day! This is very creative, and I did not even consider it
seriously until he played it! Of course White has many other possibilities
here.} ({I was mostly expecting something like} 14. Bh3 O-O 15. Rhf1 Nc6 $132 {
but then I don't think I am worse, in fact I prefer my position since I am up
a pawn!}) ({But then here comes the computer, who comes up with a suggestion
almost impossible to see!} 14. a4 $3 a5 ({does not work:} 14... Nc6 $2 15. a5
$1 Nxa5 16. Qb5+ Nc6 17. Nd5 Nxd5 18. exd5 $16 {and White wins.}) (14... N8d7
15. a5 Nc5 16. Qb5+ $5 Nbd7 17. Nd5 Qd8 18. a6 $3 c6 19. axb7 Nxb7 20. Qxb7
cxd5 21. Qxd5 $16) 15. Bb5+ $1 c6 (15... Kf8 $2 16. Qa3+ $18 {followed by
f3-f4, when Black cannot survive long enough to see tomorrow!}) 16. Bf1 $1 N8d7
17. Bh3 Rb8 18. Kb1 $1 Qe7 19. Ne2 $16 {[%cal Ge2g3,Gg3f5] and Black comes in
under a lot of pressure. It's a relief that my opponents are not computers!})
14... exf4 15. Nd5 $1 {Another unexpected surprise! I was only thinking he
would recapture on f4, but this might be even stronger!} ({If} 15. exf4 {
I was intending to play safely with} N8d7 $5 16. fxg5 Qxg5+ 17. Kb1 {and now
either} Qe7 ({or} 17... O-O-O 18. Qxf7 Kb8 19. Bh3 Ne5 $11 {in both cases
Black doesn't have any problems and can even fight for the advantage.})) 15...
Nxd5 16. Rxd5 Nc6 $1 {The only way for me to continue the fight!} (16... Nd7 $2
{would be naпve:} 17. Bh3 Nb6 18. Qb5+ $1 Kf8 19. Rf5 $36 {when White's
initiative is very powerful.}) 17. Rg1 (17. Rf5 Qe6 18. Bc4 $2 Qxe4 19. Bxf7+
Ke7 $19 {obviously does not work for White,since there is nothing concrete.}) (
{But White should have played:} 17. Bb5 $1 {disabling one of Black's most
active pieces! This would have been very unpleasant for me to meet over the
board! Though after the accurate} a6 $1 18. Bxc6+ Qxc6+ 19. Kb1 Qe6 20. Qd3
fxe3 21. Rxg5 e2 $5 $11 {intending} 22. Qxe2 O-O-O {I wouldn't get any
problems either.}) 17... h6 $1 {A very strong move I think! Now my kingside
pawns are stabilized,and my only problem is where to put the Black king!} 18.
Bc4 Ne7 $6 ({It is easy with a computer, but over the board, I wrongly thought
that it would be too risky to play} 18... O-O $1 19. Rf5 Qe7 20. Qc3 (20. exf4
Nd4 $19) 20... f3 $1 21. Rxf3 (21. Rf6 $2 Ne5 22. Rxh6 Kg7 $19) 21... Ne5 22.
Rf5 Nxc4 23. Qxc4 Rad8 $17 {and Black could have consolidated his extra pawn!})
19. Rdd1 O-O $2 {A product of lack of concentration and bad time management.
If I had used some more minutes here, I'm sure I could have found the best
move!} ({Black could still remain with the much better chances after:} 19... f3
$1 20. Qxb7 (20. Rg3 Nc6 $1 21. Rd5 O-O 22. Rf5 Qe7 23. Rgxf3 Ne5) ({Not} 20.
Rdf1 $2 {of course which allows Black to castle queenside} O-O-O $19) 20... O-O
21. e5 Qc6 $17) 20. Rdf1 $132 {now White has good counterchances again and I
didn't find it easy to look for a good move.} b5 $1 {I was getting low on time,
and so I decided to just make a move and see what happens! But in fact I have
to look for counterplay fast,and this is just ideal.} 21. Qxb5 ({The
complications work well for Black after:} 21. Bxb5 Rab8 $1 22. exf4 c6 23. e5
Qg7 $15) ({Or} 21. Bd3 $5 {but it relieves away the pressure on the f7-square
and I did not consider it seriously during the game.}) 21... Rab8 22. e5 Rxb5
$2 {As I said I was low on time, but still, this shouldn't excuse me from
making inaccuracies one after the other.} ({Much much stronger would have been:
} 22... Qb6 $1 23. Qxb6 cxb6 {now Black has managed to fix his queenside pawn
structure as well as threatening a pin along the c-file. Black is clearly
better I think, for example like after:} 24. Rxf4 Kg7 25. Bb3 Rbd8 26. Rf6 Rc8+
27. Kd2 Nc6 28. Rf5 Rce8 $17) 23. exf6 Rc5 24. b3 $2 {An inexplicable mistake.
I was not sure why, after thinking for a few minutes, my opponent chose it.
I'm glad I wasn't the only one making inaccuracies.} ({Most likely a draw
would have resulted from:} 24. fxe7 Rxc4+ 25. Kd2 Re8 (25... fxe3+ $2 26. Kd3
$18) 26. exf4 f6 27. fxg5 fxg5 28. Rf6 Rd4+ 29. Kc3 Rd6 30. Rxd6 cxd6 31. Rd1
$11 {and this is what I was expecting.}) 24... Nf5 25. exf4 Ne3 26. Rf2 Kh7 $1
{I very much liked this move. I know that my opponent was using most of his
time calculating 26...Nxc4 27.Rc2 and I wanted to surprise him!} 27. Kb2 $2 {
I don't understand, why the king decided to go farther away from the main
battlefield.} ({Preferable is} 27. Kd2 Nxc4+ 28. bxc4 Rf5 29. Rgg2 $15 {
when compared to the game, at least White's king is better placed and he has
fair drawing chances.}) 27... Nxc4+ 28. bxc4 Rf5 $17 {I think the rook ending
should be an easy win. I'm going to win some pawns, and the White king is also
cut off!} 29. Kc3 Rxf6 30. f5 Re8 31. Rd1 Re5 ({What I played is also
sufficient, but now I think the simplest way to finish the game is} 31... Re3+
32. Rd3 Rxd3+ 33. Kxd3 Kg7 34. Ke4 Ra6 $1 {[%cal Gg7f6] and White cannot
prevent ...Kf6, for example} 35. Ke5 Ra5+ $17 {when all the White pawns are
going to fall.}) 32. Rd5 Re3+ 33. Kd4 Rh3 34. Rd7 Rxh5 35. Rxc7 g4 36. Ke4 Rg5
{My kingside pawns are just going to push forward towards promotion! It is
obvious that White does not have enough resources to offer any resistance.} 37.
c5 g3 38. Rg2 h5 39. Rxa7 h4 40. Ra3 h3 41. Raxg3 Rxg3 42. Rxg3 h2 0-1

[Event "Tata Steel-B 77th"]
[Site "Wijk aan Zee"]
[Date "2015.01.15"]
[Round "5"]
[White "Navara, David"]
[Black "Wei, Yi"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2729"]
[BlackElo "2675"]
[Annotator "Stohl,I"]
[PlyCount "131"]
[EventDate "2015.01.10"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "13"]
[SourceTitle "CBM 165"]
[Source "ChessBase"]
[SourceDate "2015.03.11"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.11"]
[SourceQuality "1"]

1. Nf3 {Navara knows his opponent from the Chinese league and he wanted to
lure him into a concrete variation.} ({After} 1. d4 Nf6 2. c4 {Wei Yi also
plays the Nimzo-Indian. He had one full-blooded Grьnfeld in Wijk:} g6 3. Nc3 d5
4. Nf3 Bg7 5. Bg5 (5. cxd5 Nxd5 6. Qb3 {is an attempt to transpose into the
game, but here Black has the alternative} Nxc3 7. bxc3 c5 8. e3 O-O 9. Be2 Nc6
10. O-O Na5 11. Qa3 cxd4 12. exd4 (12. cxd4 Be6 {with typical counterplay.})
12... b6 13. Bg5 f6 14. Be3 Be6 15. Nd2 Qd6 16. Qxd6 exd6 17. Bf4 d5 18. Rfe1
Kf7 19. Ba6 Rad8 20. h4 Bc8 21. Bb5 Bd7 22. a4 Rfe8 $11 {Anton Guijarro,D 
(2490)-Nabaty,T (2582) Benasque 2012}) 5... Ne4 6. Bf4 Nxc3 ({Grischuk lately
experimented with} 6... O-O $5 {/\} 7. Nxd5 c5 $44) 7. bxc3 dxc4 (7... c5 {
is more popular, but the text is no worse.}) 8. e3 Be6 9. Qb1 b6 10. Ng5 Bd5
11. e4 h6 12. Nf3 ({The position after} 12. exd5 hxg5 13. Qb5+ {occurs more
often with the bishop on h4. Then Black can also consider 13...c6!? 14.dxc6
a6=, now he has the standard} Qd7 14. Qxd7+ Nxd7 15. Bxg5 b5 16. a4 b4 $132 (
16... Nb6 $5 17. axb5 O-O-O $11)) 12... Be6 13. Be5 f6 $5 ({This ugly, but
concrete move seems stronger than} 13... O-O 14. Bxg7 Kxg7 15. d5 Bc8 16. Bxc4
c6 17. O-O Bb7 18. Bb3 cxd5 19. exd5 Nd7 20. c4 Nc5 21. Qb2+ Kh7 22. Rad1 $14 {
Frog,I (2295)-Baikov,V (2370) Moscow 1995}) 14. Bg3 (14. d5 Bf7 15. Bg3 {
Maris,I (2178)-Leenhouts,K (2385) Vlissingen 2014} f5 16. Be5 O-O {is only a
transposition.} ({Moreover, Black can consider} 16... Bxe5 $5 17. Nxe5 Qd6 $13)
) 14... O-O 15. d5 f5 16. Be5 Bf7 17. Bxc4 Bxe5 18. Nxe5 Qd6 19. f4 Nd7 20.
Nxd7 (20. Nxf7 Qxf4 $1 21. d6 Rxf7 $44 {[%csl Re1] |^}) 20... Qxd7 21. exf5 $2
(21. O-O c6 22. exf5 gxf5 23. dxc6 Qxc6 $11) 21... Bxd5 22. Qe4 Rxf5 23. O-O-O
e6 $17 {Timman,J (2593)-Wei,Y (2675) Wijk aan Zee-B 2015}) 1... Nf6 2. c4 g6 3.
Nc3 d5 4. cxd5 Nxd5 5. Qb3 (5. Qc2 {was introduced by Topalov against Kamsky
in 2011. Black's best is} Nc6 {and now:} 6. d4 (6. Qb3 Nb6 7. d4 {is a
paradoxical idea, White has invested a tempo and tries to prove the Nc6 is
misplaced. After} Be6 8. Qd1 Bg7 9. e3 O-O 10. Be2 Bc4 11. Bxc4 Nxc4 12. O-O
Qd7 13. b3 Nb6 (13... Nd6 $5 $11) 14. Bb2 Rad8 15. Qc2 e5 16. dxe5 Nxe5 17.
Nxe5 Bxe5 18. Ne4 {Vallejo Pons,F (2698)-Wei,Y (2634) Leon rpd 2014} {Black
can hold the balance with} Bxb2 19. Qxb2 Nd5 20. Rad1 Qe7 $11) 6... Ndb4 7. Qa4
Bd7 8. Qd1 e5 9. dxe5 Bf5 10. Bg5 Be7 (10... Nc2+ 11. Qxc2 Bxc2 12. Bxd8 Rxd8
13. Rc1 Bf5 14. e4 Bh6 15. Rd1 Rxd1+ 16. Kxd1 Bg4 17. Bb5 Bxf3+ 18. gxf3 Bf4
19. Nd5 Bxe5 20. Nb4 Bxb2 21. Ke2 Ba3 $132 {So,W (2653)-Gupta,A (2644) Ho Chi
Minh City 2012}) 11. e4 Bg4 12. Bxe7 Qxe7 13. a3 Bxf3 14. gxf3 Rd8 15. Qa4 Nd3+
16. Bxd3 Rxd3 17. Qb5 {and here Black has a choice:} Rxf3 (17... Rd4 18. f4 (
18. Nd5 Qxe5 19. Qxb7 Rxe4+ 20. Kf1 Qxd5 21. fxe4 Qc4+ 22. Kg1 Qxe4 23. Qc8+
Ke7 24. Qxc7+ (24. Qxh8 Nd4 {and White can't avoid a perpetual}) 24... Kf8 25.
h4 {½, Szymanski,R (2414)-Spiegel,W (2373) email 2011} Nd4 26. Rh3 Qg4+ 27.
Rg3 Ne2+ $11) 18... O-O 19. h4 (19. Qxb7 Qe6 20. Qa6 Nxe5 21. Qxe6 Nd3+ $11)
19... Qe6 20. Qe2 Rfd8 21. h5 Qb3 (21... g5 $5 22. Rg1 h6 $13) 22. hxg6 hxg6
23. Rh3 Rd2 24. Qg4 R2d3 25. Rxd3 Rxd3 26. Rd1 Rxd1+ 27. Nxd1 Nd4 28. Qd7 Qd3 {
1/2, Zhao,J (2577)-Gao,R (2427) Ho Chi Minh City 2012}) 18. Qxb7 Nd8 19. Qb4
Qh4 $5 (19... Qxe5 20. Rd1 c6 (20... a5 $2 {has been played at least twice to
avoid the following endgame. Surprisingly White hasn't found the decisive} 21.
Qa4+ c6 22. Rxd8+ $1 Kxd8 23. Qd1+ $18) 21. O-O Ne6 22. Qd6 Qxd6 23. Rxd6 O-O
24. Kg2 Rd3 $11 {/+/=, Vorobiov,E (2574)-Sutovsky,E (2700) WCup
Khanty-Mansiysk 2011}) 20. O-O-O a5 21. Qb5+ (21. Qxa5 $142 O-O 22. Qxc7 Ne6
$44 {is an engine evaluation. White's kingside is weak and his queenside
passed pawns can't move forward so easily...}) 21... Kf8 22. e6 $2 (22. Qxa5
Ne6 $13) 22... Qf4+ $1 23. Kb1 Nxe6 24. Rd3 Rxf2 25. Qxa5 Rxh2 26. Rxh2 Qxh2
$15 {Arnaudov,P (2476)-Cheparinov,I (2664) BUL-ch Panagyurishte 2012}) 5... Nb6
({Now} 5... Nxc3 $2 6. Qxc3 {is inferior, as both} Rg8 ({and} 6... f6 {are
serious positional concessions.})) 6. d4 Bg7 (6... Be6 7. Qc2 Bg4 $5 ({After} 
7... Bg7 8. e4 Bg4 9. Ne5 $14 {Black's results in practice have been horrible.}
) 8. Qe4 Bxf3 9. Qxf3 c6 (9... Qxd4 10. Qxb7 Bg7 11. g3 Qb4 12. Qf3 $14 {
[%csl Ra7,Gc1,Rc7,Gf1]}) 10. e3 Bg7 11. Be2 e5 12. dxe5 Bxe5 13. Qe4 Qe7 14.
Bd2 N8d7 15. Qc2 O-O 16. O-O Rfe8 17. Rfd1 a5 $1 18. Be1 a4 19. Rab1 Nc5 20.
Bf1 Red8 21. g3 Bg7 22. Rxd8+ Rxd8 23. b4 axb3 24. axb3 Ra8 25. b4 $11 {
/+/=, Gelfand,B (2740)-Svidler,P (2747) London Candidates 2013; For more
details see the notes to this game in CBM 154 by Marin.}) 7. Bf4 ({Navara used
to play} 7. e4 {here; his opponent was undoubtedly prepared:} Bg4 (7... O-O 8.
Be3 Bg4 {tranposes to the Smyslov System (D98-99), which is not Black's main
choice against the Nf3, Qb3 Grьnfeld nowadays.}) 8. Bb5+ c6 9. Ng5 O-O 10. Be2
Bxe2 11. Nxe2 {Possibly the most reliable reaction is the pawn sacrifice} c5 $5
(11... h6 12. Nf3 $14 {[%csl Gd4]}) (11... e5 12. dxe5 h6 13. Nh3 $5 N8d7 14.
f4 Nc5 15. Qc2 Nd3+ 16. Kf1 $13 {/+/= and Black's compensation is questionable}
) (11... Na6 12. Qh3 h6 13. Nf3 h5 (13... Qd7 14. Qh4 (14. g4 $5 h5 15. Rg1 $13
) 14... g5 $6 (14... h5 $142) 15. Bxg5 $1 hxg5 16. Nxg5 Rfd8 17. Qh5 e5 18. O-O
f6 19. Qh7+ Kf8 20. f4 exd4 21. f5 fxg5 22. f6 $18 {Navara,D (2710)-Ris,R 
(2407) Reykjavik 2013}) 14. Rg1 Nd7 15. e5 Nb4 16. g4 Nc2+ 17. Kf1 Nxe5 $5 18.
Nxe5 Bxe5 19. gxh5 Qc8 20. Rg4 Qf5 21. dxe5 Rad8 22. hxg6 fxg6 $1 (22... Rd1+
$2 23. Kg2 Ne1+ 24. Kg3 Qf3+ 25. Kh4 Qxf2+ 26. Kg5 f6+ 27. Kh6 $18 {Cheparinov,
I (2678)-Sutovsky,E (2660) Poikovsky 2013} {White's king march is decisive!}
Qxe2 28. Re4 $1 Qg2 29. Qe6+ Kh8 30. h4 {[%cal Re4g4,Re6e7]}) 23. Nf4 Rd1+ 24.
Ke2 (24. Kg2 Qe4+ 25. f3 Ne1+ 26. Kg3 Rd3 $1 $11 {/=/+}) 24... Re1+ 25. Kd2
Rd8+ 26. Kc3 Nxa1 27. Rxg6+ Qxg6 28. Nxg6 Rxc1+ 29. Kb4 Rd4+ 30. Ka3 Nc2+ $11)
12. dxc5 N6d7 13. Qxb7 Qa5+ 14. Bd2 Qa6 15. c6 Qxc6 16. Qxc6 Nxc6 17. Rc1 Rac8
18. b3 Rfd8 (18... Nce5 19. O-O Nd3 20. Rxc8 Rxc8 21. Be3 Rc2 22. Nc1 Nxc1 23.
Rxc1 Rxa2 24. Kf1 h6 25. Rc8+ Nf8 26. Nf3 a5 $11 {Anton Guijarro,D (2607)
-Harika,D (2505) Doha 2014}) 19. Nf3 Bb2 {Lupulescu,C (2630)-Swiercz,D (2614)
Bundesliga 2014} 20. Rc2 Nb4 $1 21. Rxc8 Nd3+ $11) 7... Be6 {This is the main
move. The Grьnfeld is a very concrete opening and sometimes Black must even
postpone castling to get effective counterplay.} ({After} 7... O-O 8. e3 ({
or even} 8. Rd1 {it's more difficult for Black to break up, or threaten
White's centre.})) 8. Qa3 {A strange square for the queen, but on the other
hand White's play aims to keep his centre intact as long as possible.} (8. Qd1
c5 $1 9. e3 (9. e4 $5 cxd4 10. Nb5 Na6 11. Nbxd4 O-O 12. Bxa6 bxa6 13. O-O Bg4
$132) (9. dxc5 Bxc3+ 10. bxc3 Qxd1+ 11. Rxd1 Na4 12. Nd4 Bc4 $5 $11) 9... O-O
10. dxc5 Bxc3+ (10... Nd5 11. Nxd5 Qxd5 {also looks good:} 12. Qxd5 Bxd5 13.
Be5 Rc8 $1 $11) 11. bxc3 Qxd1+ 12. Rxd1 Na4 13. Nd4 Nxc5 14. Nxe6 Nxe6 15. Bg3
Rc8 16. c4 Nc6 17. Be2 {[%csl Ra2,Rc4,Ge2,Gg3] Grigoriants,S (2570)-Navara,D 
(2727) Wroclaw blitz 2014} Nc5 $13) (8. Qc2 Nc6 {[%cal Yc6b4,Ye6f5] also gives
Black tempi and counterplay after} 9. e3 (9. Rd1 Nb4 10. Qb1 O-O 11. e3 Bf5 12.
e4 Bg4 13. Be2 Bxf3 14. Bxf3 Bxd4 15. Nd5 {Hebert,J (2378)-Fier,A (2567)
Cannes 2014} N4xd5 16. Rxd4 Nxf4 17. Rxd8 Rfxd8 $44) (9. e4 Nxd4 $5 10. Nxd4
Qxd4 11. Nb5 Qb4+ $1 12. Bd2 Qxb2 13. Nxc7+ (13. Qxb2 Bxb2 14. Rb1 $2 Be5 15.
f4 a6 $17) 13... Kd8 $11 {and White's compensation is at best good enough only
for equality.}) 9... Nb4 10. Qd1 O-O 11. a3 N4d5 12. Nxd5 Bxd5 13. Rc1 c6 14.
Be2 Nd7 $11 {[%cal Yd8b6,Yf8e8,Ye7e5]} (14... a5 15. O-O a4 16. Bg3 Nd7 17. Bc4
Qa5 18. Bxd5 Qxd5 19. Qe2 f5 20. Rfd1 Ra5 21. Ne1 Rb5 22. Nd3 Rb3 23. Rc2 Qf7
24. Qd2 Ra8 25. Qc1 Rb5 26. Rc4 Bf8 27. Qc2 Nb6 28. Rc5 $14 {Kholmov,R (2540)
-Hort,V (2600) Moscow 1975})) 8... c5 $5 {[%mdl 512] The most aggressive
alternative, Black sacrifices a pawn to open either the long diagonal, or the
c-file and disrupt White's development.} (8... Bc4 {seems rather artificial:}
9. O-O-O (9. b3 Ba6 10. e3 $14 {is not bad, but perhaps White can aspire to
more.}) (9. Ne5 $5 Ba6 10. Rd1 {is also interesting.}) 9... c6 10. h4 N8d7 11.
h5 a5 12. e4 e5 13. Bg5 f6 14. Bxc4 Nxc4 15. Qb3 b5 16. Be3 $1 (16. h6 $6 Bf8
17. dxe5 fxg5 18. e6 Nc5 $1 19. Rxd8+ Rxd8 20. Qc2 {Stohl,I (2528)-Cernousek,L
(2455) CZE-chT 2014} g4 $44) 16... a4 17. Qc2 $14 {[%csl Re8][%cal Yh5g6,Yh5h6,
Yd4d5]}) (8... Nc6 9. e3 a5 10. Rc1 $5 (10. Bb5 O-O 11. Bxc6 bxc6 12. Qc5 (12.
O-O Nc4 13. Qc5 Nxb2 14. Qxc6 Nd3 15. Bg3 Nb4 16. Qc5 Na6 17. Qb5 c5 18. Rfd1 {
Jakovenko,D (2713)-Navara,D (2715) GRE-chT Achaia 2013} Qd7 $5 19. Qxa5 Rfc8
$44) 12... Nd5 13. Be5 Nxc3 14. Qxc3 Bd5 15. Bxg7 Kxg7 16. O-O Bxf3 17. gxf3
Qd5 18. Rfc1 Qxf3 19. Qxc6 Qg4+ 20. Qg2 Qxg2+ 21. Kxg2 Rfb8 22. b3 a4 23. bxa4
Rxa4 24. Rxc7 e6 25. Rc2 Rba8 26. Kf3 R8a5 $44 {Iturrizaga Bonelli,E (2656)
-Cheparinov,I (2710) Leon 2012}) 10... O-O 11. Be2 Nb4 12. b3 c6 13. O-O Bg4
14. Rfd1 N6d5 15. Nxd5 Nxd5 16. Bg3 Qb6 17. h3 Bh5 18. Bh4 $1 {[%cal Rg2g4]}
Bxf3 19. Bxf3 e6 20. e4 $14 {[%csl Gd4,Ge4,Gf3,Gh4] Wang,H (2739)
-Nepomniachtchi,I (2718) St Petersburg 2012}) ({Black has reasonable chances
to equalise after the modest} 8... O-O 9. e3 N8d7 ({Even here} 9... Nc6 10. Be2
a5 11. O-O Nb4 12. Rfc1 c6 13. Be5 Bh6 14. Ne4 Nd7 15. Nc5 Nxc5 16. Rxc5 Nd5
17. Bc4 Qb6 18. e4 Nf6 19. Bxe6 fxe6 20. Rc2 Qb4 21. Qd3 $14 {/+/-, Kramnik,V 
(2800)-Nakamura,H (2758) Moscow 2011}) 10. Rd1 $5 (10. Be2 c5 $1 {eases
Black's task:} 11. dxc5 Nc4 12. Qb4 a5 13. Qb5 Rc8 14. O-O (14. Nd4 Nxc5 $1 $15
{/\} 15. Bxc4 $2 Bd7 {[%csl Rb5]}) 14... Rxc5 15. Qxb7 Nxb2 16. Nd4 Rxc3 17.
Qxb2 Rc5 $11) 10... c6 (10... Nd5 11. Bg3 $5 (11. Nxd5 Bxd5 12. Be2 c6 13. O-O
Re8 $1 14. Bg3 Qb6 15. b3 e5 (15... a5 $142 $1 $11 {[%cal Yb6b4,Ye7e5] Eljanov}
) 16. Nxe5 Nxe5 17. dxe5 Bxe5 18. Bc4 Bxc4 19. bxc4 Bxg3 20. hxg3 $11 {/+/=,
Eljanov,P (2687)-Shirov,A (2740) Foros 2008}) 11... c6 12. e4 Nxc3 13. bxc3 Nf6
14. Bd3 Bg4 15. Rb1 Bxf3 16. gxf3 b6 17. Qa4 Qd7 18. Bf4 Rfd8 19. Rd1 Qh3 20.
Ke2 Bh6 $132 {Rahman,Z (2528)-Vachier Lagrave,M (2722) WCup Khanty-Mansiysk
2011}) 11. Ng5 Bd5 12. e4 Bc4 $1 (12... e5 13. dxe5 Bxe5 14. Bxe5 Nxe5 {
Eljanov,P (2687)-Svidler,P (2746) Foros 2008} 15. f4 $1 $14) 13. Bxc4 Nxc4 14.
Qb3 e5 15. Qxc4 exf4 16. Nf3 c5 $5 17. dxc5 Bxc3+ 18. bxc3 Qe7 (18... Qc7 $11)
19. c6 Nb6 20. Qb4 Rfe8 (20... Qxb4 21. cxb4 bxc6 $11 {[%cal Ya7a5,Yf8e8]}) 21.
Qxe7 (21. cxb7 $142 $5 Qxb4 22. cxb4 Rxe4+ 23. Kd2 Rb8 $11) 21... Rxe7 22. cxb7
Rxb7 23. Rd4 $6 Na4 $1 24. Rb4 {Goganov,A (2581)-Grandelius,N (2576) Stockholm
2014} Rab8 25. Kd2 Nxc3 $1 26. Rxb7 Nxe4+ $15) 9. e4 $5 {[%mdl 64] A sharp
thrust, which actually also wins material and leads the game into murky
tactical waters.} (9. O-O-O $6 cxd4 10. Nxd4 (10. Nb5 $2 Nd5) 10... Bxd4 11. e3
Nc6 $15 {[%csl Rc1]}) ({Modest, but playable is} 9. e3 cxd4 10. Nxd4 Bxd4 11.
Rd1 (11. exd4 {forces White to reckon with the greedy} Qxd4 $5 12. Be3 Qe5 $13)
11... Nc6 12. exd4 (12. Nb5 O-O 13. Nxd4 Nxd4 14. Rxd4 Qc8 $32 {[%cal Gc8c1]
<=>}) 12... Nd5 (12... O-O $5 13. Be2 Qd7 $132) 13. Bh6 Qb6 14. Be2 O-O-O 15.
O-O Nxd4 $6 (15... Qb4 $5 $11 {Krasenkow}) 16. Bg7 $40 {Inarkiev,E (2693)
-Sutovsky,E (2660) Poikovsky 2013} (16. Rxd4 $5 Qxd4 17. Rc1 $40)) (9. Qxc5 {
is solid:} Nc6 10. e3 Rc8 11. Qa3 O-O (11... Nc4 12. Bxc4 Bxc4 13. d5 $1 Qa5
14. Qxa5 Nxa5 15. Be5 $36) 12. Rd1 (12. Be2 Nc4 13. Qa4 (13. Bxc4 Bxc4 14. d5
Na5 15. Be5 Bxd5 $1 {[%cal Ra5c4] /\} 16. Bxg7 Nc4 17. Qxa7 Bxf3 18. Bxf8 Bxg2
19. Qd4 Qxd4 20. exd4 Bxh1 21. Bxe7 Nxb2 $11) 13... Nxb2 14. Qb5 Nc4 $1 15. O-O
Qa5 16. Rfc1 Qxb5 (16... Na3 $6 17. Qxb7 Nb4 18. Ne1 Bf5 19. g4 Nac2 20. Nxc2
Bxc2 21. Nb5 $16 {Le Quang Liem (2703)-Navara,D (2706) Belfort 2012}) 17. Nxb5
Nb6 $11) 12... a5 $5 (12... Nd5 13. Nxd5 Bxd5 14. Bd3 $5 (14. Be2 $14) 14...
Bxf3 15. gxf3 Qb6 16. Bg5 h6 17. Bh4 e5 18. d5 e4 19. fxe4 Nb4 20. O-O g5 21.
Bg3 $16 {Lalith,B (2529)-Jansa,V (2460) Pardubice 2012}) 13. Ne5 Nd5 14. Nxc6
Rxc6 15. Bg3 $142 $1 (15. Bb5 $2 Rb6 (15... Rxc3 $1 16. bxc3 Nxf4 17. exf4 Qd5
$40) 16. Qxa5 $2 (16. Be2 Nxf4 17. exf4 $15) 16... Nxf4 17. exf4 Bb3 $1 {
[%cal Rb3d1,Rb6e6]} 18. O-O Bxd1 19. Rxd1 Rd6 $19 {Sadorra,J (2451)-Ganguly,S 
(2625) Subic Bay 2009}) 15... a4 $5 (15... Nxc3 16. bxc3 Bd5 17. f3 Qb6 18. e4
Bc4 19. Bxc4 Rxc4 20. O-O $14) (15... Qc8 16. Rc1 Nb4 17. Bb5 Nxa2 18. O-O Nxc1
19. Rxc1 $14) 16. Bb5 Rxc3 17. bxc3 Qa5 18. Qxa4 Qxc3+ 19. Rd2 Rc8 $44) ({
No one has yet tried} 9. dxc5 Nc4 10. Qb4 Na6 11. Qxb7 Nxc5 12. Qb5+ Nd7 13. e3
Nd6 $32 ({or} 13... a6 $44 {White's undeveloped kingside certainly looks
discouraging.})) 9... cxd4 10. Nb5 O-O $1 {Black must be generous!} (10... Na6
$6 11. Rd1 $36 {[%csl Rd4][%cal Gd1d8]}) 11. Nc7 ({White shouldn't be too
greedy:} 11. Bc7 $6 {is very dangerous:} Qd7 12. Bxb6 Nc6 13. Nc7 (13. Ba5 b6
14. Bd2 a6 $36 {/-/+}) 13... Rac8 14. Ng5 Bg4 15. h3 Bh5 16. g4 axb6 17. Nd5
Qd8 18. Nf3 f5 $1 $36) 11... Nc6 12. Nxa8 Qxa8 13. Rc1 {Kingside development
must still wait for a while.} (13. Bd3 $143 Nc4 $36) 13... f5 14. e5 Nd5 15.
Bd2 Nxe5 ({The text move is stronger than} 15... Qb8 16. Bb5 Bxe5 (16... Nxe5
17. Nxd4 Bf7 18. O-O $14 {[%csl Gg1] , safeguarding the king.}) 17. O-O Bf7 18.
Bxc6 Bd6 $1 (18... bxc6 $6 19. Nxe5 Qxe5 20. Rxc6 f4 21. Qd3 Re8 22. Re1 Qg5
23. Qxd4 e5 24. Qc5 $18 {Bu,Xiangzhi (2670)-Tomczak,J (2560) Guimaraes 2012})
19. b4 $14 (19. Bxd5 Bxa3 20. Bxf7+ Kxf7 21. bxa3 e5 22. Rc5 $14)) 16. Nxd4 Bf7
17. Be2 Nb6 ({Again concrete play, after} 17... Rd8 18. Nf3 Nxf3+ 19. Bxf3 e5
20. O-O e4 21. Be2 Qb8 22. Rfd1 Be5 23. h3 Bh2+ 24. Kh1 Nf4 25. Bf1 Nd3 26.
Bxd3 Rxd3 27. Bc3 $16 {Khismatullin,D (2656)-Popov,I (2653) ECC Rhodes 2013
White has consolidated his slight material advantage.}) 18. b3 (18. Qh3 Nec4 (
18... Rd8 $142 $1 19. Bc3 Nd5 $44 {[%csl Gd5,Ge5]}) 19. Bc3 Na4 20. Nxf5 $1
Nxc3 21. Rxc3 Bxc3+ 22. Qxc3 gxf5 23. Bxc4 Qc8 24. Qg3+ Kh8 25. Qe5+ Kg8 26.
Bxf7+ Kxf7 27. O-O $14 {[%csl Rf7,Gg1] Wagner,D (2481)-Seger,R (2374)
Bundesliga 2014 Material is equal again, but White with his safer king has a
long-term advantage.}) 18... Qd8 $5 (18... Rd8 19. Nf3 $14 {and in a few moves
White finally manages to castle...}) 19. Nf3 {White should strive for
simplification.} (19. Bc3 Nd5 $36 {can be unpleasant}) 19... Nd3+ 20. Bxd3 Qxd3
21. Qxa7 Bb2 ({An untested computer line is} 21... Nd5 22. Qc5 e5 $5 23. Qc2
Qa6 24. Ng5 Nf4 25. Bxf4 exf4 26. Nxf7 Re8+ 27. Kd1 Bc3 $1 28. Rb1 Qa5 29. Nd6
Rd8 30. Ke2 (30. Qd3 Qe5 31. Qc4+ Kh8 32. Kc2 Rxd6 33. Rhd1 Rc6 34. Rd5 Qe7 35.
Kxc3 Rxc4+ 36. bxc4 Kg7 $132) 30... Qe5+ 31. Kf1 Rxd6 32. Qe2 (32. Rd1 Re6 33.
Qc1 Qe2+ 34. Kg1 Bd2 35. Qa1 Bc3 $11) 32... Rd2 33. Qxe5 Bxe5 $44 {and White
has hardly more than} 34. Re1 Bd4 35. Re2 Rd1+ 36. Re1 Rd2 $11) (21... Rc8 22.
Qxb6 Rxc1+ 23. Bxc1 Bc3+ 24. Bd2 Qb1+ 25. Ke2 Bc4+ 26. bxc4 Qxb6 27. Bxc3 $14)
22. Qxb6 $8 {Practically forced} (22. Rd1 Nd5 $36 {can be dangerous only for
White.}) 22... Bxc1 23. Bxc1 Rd8 24. Nd2 Rd6 25. Qa7 $5 $146 {[%mdl 8]} (25.
Qb4 Bd5 26. f3 Qe3+ $1 (26... Re6+ 27. Kd1 Re2 28. Bb2 Rxg2 29. Kc1 Bxf3 30.
Re1 Rxh2 31. Bc3 $36 {Svidler,P (2740)-Sutovsky,E (2657) ECC Rhodes 2013 Here
Black also has 3 pawns for the knight, but White's forces are better
coordinated and his extra piece starts to tell.}) 27. Kd1 (27. Kf1 $2 Re6 $19)
27... Bxf3+ $1 28. Kc2 Bxg2 29. Rd1 f4 $44 {is a line given by Krasenkow in
CBM 157.} (29... Kf8 $5 $11)) 25... Bd5 {[%csl Re1] Of course, Black must keep
Ke1 trapped!} (25... Qc2 $2 26. O-O $18) (25... Re6+ $2 26. Kd1 $18) 26. f3
Re6+ ({Navara in his preparation concentrated on} 26... Rc6 $1 27. Kd1 (27. Nc4
Bxc4 28. bxc4 Qxc4 29. Kf2 Qh4+ {just barely scrapes a draw after} 30. Ke2 $11
(30. g3 $6 Rc2+ 31. Ke3 Qb4 $1 32. Qb8+ Kf7 33. Qe5 Rc3+ 34. Kf2 Rxc1 35. Rxc1
Qd2+ $17)) 27... Rxc1+ 28. Kxc1 Qc3+ 29. Kb1 (29. Kd1 Qa1+ 30. Kc2 Qxh1 31. Qc5
e6 {and White has only a perpetual after} 32. Qe7) 29... Qd3+ 30. Kb2 Qxd2+ 31.
Ka3 {and Black can force a perpetual with} Bxf3 $5 (31... Qxg2 $11 {is also
playable}) 32. gxf3 Qd6+ 33. Ka4 (33. b4 Qd3+ 34. Ka4 b5+ 35. Ka5 Qa3+ 36. Kb6
Qe3+ $11) 33... Qd7+ 34. Kb4 Qd2+ 35. Kb5 Qd3+ $11 36. Kb6 $6 Qe3+ 37. Kxb7
Qxf3+ $15 {Some novelties objectively don't win, but 25.Qa7!? promised White
good practical chances - Wei Yi was down to 17 minutes, while David started
thinking only now.}) 27. Kd1 $8 (27. Kf2 $2 Re2+ 28. Kg1 (28. Kg3 $2 f4+ $1 $18
{mates}) 28... Re1+ $19) 27... Ra6 (27... Rc6 $142 $1 $11 {[%cal Rc6c1] and
despite the extra tempo it's surprisingly difficult to meet the main threat.
After} 28. Rf1 Ra6 29. Qc5 Rxa2 30. Qxe7 h5 $5 (30... Rxd2+ $2 31. Bxd2 Qxf1+
32. Kc2 $40 {[%cal Re7d8,Rd2c3,Rc3b4]}) {it's difficult to see how White
should untangle his forces:} 31. Qg5 Rxd2+ 32. Bxd2 Qxf1+ 33. Kc2 Kf7 $11) 28.
Qc5 (28. Qb8+ Kf7 29. Qe5 Rxa2 30. Bb2 Bxb3+ 31. Ke1 Qc2 {forces} 32. Qg7+ Ke8
33. Qh8+ Kd7 34. Qd4+ Ke8 $11 (34... Kc8 35. Bc3 $1 (35. Qc3+ $2 Qxc3 36. Bxc3
Rc2 $17) 35... Qd1+ 36. Kf2 Qxh1 37. Qc5+ $40)) 28... Rxa2 (28... Rc6 $2 29.
Qb4 $1 $16) 29. Qxe7 Bxb3+ 30. Ke1 Bf7 $2 ({Both players saw} 30... Rc2 $2 31.
Qe8+ Kg7 32. Bb2+ $1 $16) ({Wei Yi discarded} 30... Qd4 $142 $1 {due to} 31. f4
(31. Nxb3 Qf2+ 32. Kd1 Qc2+ $11) {, but Black should hold the endgame after}
31... Bd5 (31... Qxf4 $2 32. Rf1) 32. Qe8+ Kg7 33. Qe5+ Qxe5+ 34. fxe5 Bxg2 35.
Rg1 Bd5 $44) 31. Kf2 $6 {Instinctively escaping from the centre.} ({However,
Houdini indicates the extremely strong} 31. Qe5 $1 {and now:} Rc2 (31... Ra8
32. Ne4 $1 fxe4 33. Bh6 $18 {[%cal Re5g7]}) 32. Qb8+ Kg7 33. Bb2+ $1 Kh6 (33...
Rxb2 34. Qe5+ $18) 34. Qf8+ Kh5 (34... Kg5 35. Ne4+ $1 fxe4 36. Qe7+ Kh5 37.
g4+ Kh6 38. Qh4#) 35. Qb4 Bc4 36. Kd1 $18 {Black is in zugzwang, as he has no
way to develop his play - bishop moves run into g4+.}) 31... f4 ({A simple
enough way is} 31... Rxd2+ 32. Bxd2 Qxd2+ 33. Qe2 Qd4+ 34. Qe3 $16 {/+-}) ({
White's task is more difficult after} 31... Rc2 $5 {/\} 32. Kg3 f4+ 33. Kh3 Qd5
$1 (33... Qf5+ 34. g4 Qc8 35. Bb2 $1 Rxb2 36. Ne4 $40 {Navara}) 34. Re1 Qh5+
35. Qh4 Qc5 36. Ne4 Qc8+ 37. g4 Rxc1 (37... fxg3+ $2 38. Kxg3 Rxc1 39. Nf6+ Kg7
40. Nh5+ gxh5 41. Qg5+ $18) 38. Qh6 Be6 39. Re2 $1 $36 {White has returned the
piece, safeguarded his king and has attacking chances, but the game is still
far from over.}) 32. g4 $5 Qd4+ $6 (32... Rc2 $142 {was still better, when
Navara intended to play} 33. Qe1 $5 $14 (33. Qe4 Qc3 34. Qxf4 Rxc1 35. Rxc1
Qxc1 36. Qb8+ Kg7 37. Qe5+ Kg8 38. Ne4 h5 $14 {/=})) 33. Kg2 Rxd2+ 34. Bxd2
Qxd2+ 35. Kh3 Qd5 36. Qe4 {[%mdl 4096] The position has finally stabilised.
Navara felt that the queen swap leads to an easily won endgame, but the
position is still quite tricky.} ({Therefore afterwards he suggested} 36. Qe2
$5 h5 37. Rd1 hxg4+ 38. fxg4 $16 {[%csl Rg8] ->, when White plays for the
attack.}) 36... Qxe4 37. fxe4 {[%cal Rg4g5]} g5 $8 38. Kg2 {Flexible and good.}
({After} 38. Rb1 $6 Bc4 {White has to play} 39. Kg2 {anyway.}) 38... b5 39. h4
h6 40. hxg5 $2 {Only the last move before the control allows Black to save the
game.} ({After} 40. Ra1 $1 $16 {Black has extra problems with the weakness on
h6, the players analysed} Kg7 41. Ra5 Bc4 42. Ra7+ Kf6 43. h5 $1 {[%csl Rh6]}
Bd3 (43... Be2 44. Rh7 Bxg4 45. Rxh6+ Ke7 (45... Ke5 46. Rg6 $18) 46. e5 $18)
44. Kf3 b4 45. Rh7 Ke5 46. Rxh6 Bxe4+ 47. Ke2 Kd4 {[%cal Rd4c3]} 48. Kd2 $1 $18
{The only winning move, overlooked from the distance by Navara. Preventing Kc3
stops Black's counterplay and decides the game.}) 40... hxg5 41. Rh6 Kg7 ({
Good enough, but Black had also} 41... b4 $5 42. Rb6 b3 43. Rb5 Bc4 44. Rxg5+
Kf7 45. Rc5 Bd3 $11) 42. Rb6 Bc4 43. Kf3 ({The attempt to force zugzwang with} 
43. Kf2 $5 Kf7 44. Kf3 {is insufficient due to} Bd3 45. e5 b4 46. Rxb4 Ke6 47.
Rb3 Bc4 48. Rb6+ Kxe5 49. Rg6 Bd5+ 50. Kf2 Be6 $1 $11) 43... Kf7 44. Rd6 (44.
e5 Bd5+ 45. Kf2 b4 $5 (45... Be6 46. Rxb5 Bxg4 $11) 46. Rxb4 Ke6 47. Rb6+ Kxe5
{transposes to the previous note.}) 44... Be6 45. Rb6 Bc4 46. Kf2 Bd3 47. e5
Bc4 (47... b4 $5 48. Rxb4 Ke6 $11) 48. Rf6+ Ke7 49. Rb6 (49. Rg6 b4 50. Rxg5 b3
{and White can stop the passed pawn only with} 51. Rg6 Be6 52. Rg7+ Bf7 53. e6
Kxe6 54. Rg5 Kd6 55. Rf5 Bc4 $11) 49... Kf7 50. Kg2 Ke7 51. Kf3 Bd5+ 52. Ke2 b4
$1 {Wei Yi precisely calculates the aforementioned liquidation.} 53. Rxb4 Ke6
54. Kd3 (54. Rb6+ Kxe5 55. Rg6 Be6 $11) 54... Kxe5 55. Rb5 Ke6 56. Kd4 Bf3 57.
Rxg5 Kf6 58. Rf5+ Kg6 59. Rxf4 Bd1 $11 {[%csl Rg4][%cal Rg6g5]} 60. Ke5 Kg5 61.
Rf1 Bxg4 62. Rg1 Kh5 63. Kf4 Be6 64. Rg5+ Kh6 (64... Kh4 $4 65. Rg6 $18) 65.
Rf5 {Black's king is in the good corner and Navara decided not to test his
opponent anymore.} Bxf5 66. Kxf5 1/2-1/2

[Event "Moscow Tal Memorial 8th"]
[Site "Moscow"]
[Date "2013.06.15"]
[Round "3"]
[White "Nakamura, Hikaru"]
[Black "Karjakin, Sergey"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2784"]
[BlackElo "2782"]
[Annotator "Sumets,A"]
[PlyCount "103"]
[EventDate "2013.06.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[EventCategory "22"]
[SourceTitle "CBM 155"]
[Source "ChessBase"]
[SourceDate "2013.07.16"]
[SourceVersion "1"]
[SourceVersionDate "2013.07.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 c5 8.
d5 Bxc3+ 9. bxc3 O-O 10. Nf3 {According to modern theory, this is not the most
prinicipled continuation. At the moment the most principled lines start with
10.Qd2 or 10.Bc4.} (10. Qd2 $5 e6 (10... Qd6 11. f4 (11. Nf3 Bg4 12. Ng1 {
1/2-1/2 Arutinian,D-Kasimdzhanov,R/Konya TUR 2011}) 11... Nd7 12. e5 Qc7 13. h4
c4 14. h5 Nb6 15. Nf3 Bg4 16. hxg6 fxg6 17. Ng5 Rad8 18. d6 exd6 19. Rxh7 Qc5
20. Rh6 dxe5 21. Rxg6+ Kh8 22. Nf7+ (22. Rh6+ Kg8 23. Rg6+ $11) 22... Kh7 23.
Rh6+ (23. f5 $1 Rxd2 24. Ng5+ Kh8 25. Rh6+ Kg8 26. Rg6+ $11) 23... Kg7 $19 24.
Nxd8 Rxd8 25. Rh4 Rxd2 26. Rxg4+ Kf8 27. Kxd2 Qf2+ 28. Be2 Nd5 29. Rh1 Qe3+ 30.
Ke1 Qxc3+ 31. Kf2 Qe3+ 32. Ke1 Nxf4 33. Rh8+ Kf7 34. Rxf4+ exf4 35. Rh7+ Kf6
36. Rxb7 c3 {0-1 Riazantsev,A-Edouard,R TCh-FRA Top12 Belfort 2012}) 11. d6 e5
12. h4 Be6 13. Nh3 {See the game Anand,V-Hammer,J NOR 2013.} (13. h5 g5 14. h6
(14. Nf3 f6 15. Be2 Nc6 16. O-O Rf7 17. Rfd1 Rd7 {You don't need to bea GM to
understand that the computer overestimates this position. Computer assessment
is around +0.5. I think the position is in Black's favour.}) 14... Kh8 15. Nf3
f6 16. Be2 Nc6 17. Nh2 Qd7 18. Nf1 Nd8 19. Rd1 Nf7 20. Bh5 Qc6 21. Ng3 Rad8 22.
Bxf7 Rxf7 $17 {Akesson,R-Boros,D FS05 Budapest 2008 1-0 (48)})) (10. Bc4 Qd6 (
10... b5 11. Bxb5 Qa5 12. Rb1 (12. Qd3 $1 Nd7 13. Nf3 Rb8 14. Bxd7 Bxd7 15. O-O
$16 Rb2 16. Ne5 Bb5 17. c4 Ba6 18. Nc6 Qc7 19. Qa3 Qb6 20. Nxe7+ Kg7 21. Nc6 f6
22. Qc3 Re2 23. Rab1 Qc7 24. Rfe1 Rxa2 25. e5 {1-0 Sambuev,B-Umansky,V Tula
2004}) 12... Bd7 13. Bd3 Qxc3+ 14. Qd2 Qxd2+ 15. Kxd2 e6 16. Ne2 exd5 17. exd5
Rd8 (17... Bc8 18. Nc3 Nd7 19. Rhe1 $14) 18. Rhc1 Bc8 19. Rxc5 Nd7 20. Ra5 $16
{Stocek,J-Khismatullin,D 11th EICC Men Rijeka CRO 2010 1/2-1/2 (50)}) 11. Nf3
Bg4 12. e5 Qc7 13. O-O Bxf3 14. Qxf3 Qxe5 15. Rab1 Nd7 (15... b6 $2 16. d6 Nd7
17. Rfe1 Qxd6 18. Rbd1 Ne5 (18... Qc7 19. Rxe7 $18) 19. Bxf7+ Nxf7 20. Rxd6 $18
) 16. Rfe1 Qd6 17. Rxb7 Rfb8 $11 18. Rb3 Ne5 19. Qe4 Nxc4 20. Qxc4 Rxb3 21.
axb3 Rd8 {1/2-1/2 Grachev,B-Vachier Lagrave,M Aeroflot Open A Moscow RUS 2010})
10... e6 {Another option is 10...Bg4:} (10... Bg4 11. Be2 (11. Qd2 Bxf3 12.
gxf3 Qd6 13. f4 e6 14. c4 e5 15. f5 Nd7 16. Rg1 Kh8 17. Qh6 Rg8 18. Rb1 Qa6 19.
Bd3 Rab8 20. fxg6 Rxg6 21. Rxg6 fxg6 22. Qh3 Qd6 23. Be2 b6 24. Qa3 a5 (24...
Qc7 $5 25. h4 Nf6 26. Qe3 Rf8 27. Kd2 Ne8 $11) 25. Rb3 Nf6 26. Qb2 Nxe4 $2 27.
f4 $16 Re8 $2 28. Re3 {1-0 Sokolov,I-Brkic,A Sibenik 2007}) 11... Bxf3 (11...
Qd6 $5 12. Nd2 $1 (12. h3 $6 Bxf3 13. Bxf3 Nd7 14. O-O b5) (12. e5 Qc7 13. O-O
Nd7 14. d6 exd6 15. exd6 Qc6 $132) 12... Bxe2 13. Qxe2 Nd7 14. O-O $14) 12.
Bxf3 Nd7 13. O-O Qc7 (13... b5 $5 14. Be2 Rb8 15. f4 c4 16. Qd2 Qc7 17. Rad1
Rfd8 {Black has good counterplay.}) 14. c4 Rad8 15. Qb3 e5 16. Rfb1 Rb8 17. Qa3
b6 18. Rd1 Nf6 19. Qc3 Rfd8 20. a4 Qe7 $11 {Radjabov,T-Kamsky,G FIDE GP Sochi
2008 1/2-1/2 (50)}) 11. Be2 {White didn't get any advantage after 11.Bc4:} (11.
Bc4 b5 12. Bxb5 Qa5 13. Bc4 $1 (13. Qd3 exd5 14. exd5 a6 15. Bc4 Re8+ 16. Kf1
Bf5 17. Qd2 Nd7 $44) 13... Qxc3+ (13... Ba6 $5 14. Bxa6 Qxc3+ 15. Nd2 Nxa6 16.
dxe6 fxe6 17. O-O Rad8 18. Qb3 Qxb3 19. axb3 Rxd2 20. Rxa6 Rb8 21. Rxa7 Rxb3
22. g3 Rbb2 $11) 14. Nd2 Ba6 15. Rc1 Qe5 16. Qe2 Bxc4 17. Nxc4 Qg5 18. Ne3 (18.
O-O $1 exd5 19. exd5 Qxd5 20. Rfd1 Qc6 21. Rd6 $44) 18... exd5 19. exd5 Nd7 20.
O-O Rfe8 $11 {Karpov,A-Timofeev,A RUS-ChT Sochi 2007 1/2-1/2 (35)}) 11... exd5
12. exd5 Bg4 13. O-O Nd7 (13... Qd6 {Black's standard plan in such kind of
positions is} 14. Rb1 (14. c4 Bxf3 15. Bxf3 Nd7 16. Re1 Rfe8 $11) 14... Nd7 $1
(14... b6 $6) 15. Rxb7 Nb6 {threatening ...Bc8} 16. Qd2 $1 Qxd5 (16... Kg7 $5
17. Ne5 (17. Qg5 Bc8 18. Qe7 Qxe7 19. Rxe7 Nxd5 20. Re5 Nxc3 21. Bc4 Bb7 22.
Rc1 Ne4 23. Re7 $44) 17... Bxe2 (17... Bc8 $2 18. Rxf7+ $1 Rxf7 19. Qh6+ Kg8 $8
20. Nxf7 Kxf7 21. Qxh7+ Kf8 22. Bd3 $16) 18. Qxe2 Qxd5 19. Re7 Qd6) (16... Bc8
$2 17. Qh6) 17. Qxd5 Nxd5 18. Bc4 Bxf3 (18... Nb6 $6 19. Bxf7+ Rxf7 20. Rxf7
Kxf7 21. Ne5+ Ke6 22. Nxg4 Rd8 23. Re1+ Kf7 24. Ne5+ Kf6 $44 {The activity of
the black pieces could be enough for a draw.}) 19. gxf3 Nb6 20. Be2 Rfb8 21.
Rc7 Rc8 22. Rb7 Rcb8 $11) 14. h3 Bxf3 15. Bxf3 Ne5 16. Be2 Qd6 17. Rb1 $1 b6 $2
18. Re1 $6 {An inaccurate move.} (18. Ba6 $1 Rfe8 19. Re1 Nd7 20. c4 Nf6 21.
Bb5 $16) 18... Rfd8 $2 (18... a6 $1 {It seems to me that this is the best
setup for Black.} 19. a4 Nd7 {M.Golubev} 20. Bf1 Nf6 21. c4 Rab8 22. Qb3 Rfe8
23. Qb2 $14) (18... c4 19. Qd4 Rac8 20. f4 Nd3 21. Bxd3 cxd3 22. Rbd1 Rfd8 23.
Rxd3 Qc5 24. Qxc5 $6 (24. Ree3 Qxd4 25. Rxd4 Rc5 26. c4 Kg7 27. Kf2 $16) 24...
Rxc5 $44 {Nezar,M-Marzolo,C Nancy 2005 1-0 (64). Black chances to make draw
are higher than White's chances to win the game.}) 19. Ba6 $1 Rab8 20. c4 Nd7 (
20... Re8 21. Bb5 Re7 22. Qd2 f6 {In order to put the knight on d6 Black needs
to weaken his kingside. Black's position is cramped and very difficult. If you
have a lack of space, then passive rooks are the common problem. For example,
if Black managed to swap one pair of rooks his position would be defendable.
If he managed to swap all the rooks his position would be better.} 23. Re2 Rf8
24. a4 g5 25. f4 gxf4 26. Qxf4 $16) 21. Bb5 $1 $16 (21. Rb3 Re8 $1 22. Rbe3
Rxe3 23. Rxe3 Kf8 24. Bb5 Re8 $5 (24... Nf6 25. Bc6 Rc8 26. Qa1 $1 $16) 25.
Rxe8+ Kxe8 26. Qa4 Qc7 {Black's next move is ...Ke7. It is not so clear if
White can achieve something.}) 21... Nf6 (21... Re8 $1 {As was mentioned above,
Black needs to trade rooks.} 22. Qd2 (22. Qa4 $5 Rxe1+ 23. Rxe1 Rb7 24. Re8+
Kg7 25. Rd8 $6 {It seems that White gains a piece} Qf4 $1 26. Qd1 $6 (26. Qc2
$1 Ne5 27. Re8 Qd4 28. Qe2 $14) 26... Ne5 27. d6 a6 28. Bxa6 Ra7 29. d7 $8 (29.
Bb5 $2 Rxa2 30. Qf1 Qf6 $19) 29... Kh6 $1 30. Bb5 Rxa2 31. Qe1 Nf3+ 32. gxf3
Qg5+ 33. Kh2 Qxd8 34. Qe3+ Kg7 35. Qe5+ Kh6 36. Qe3+ Kg7 $11) 22... Rxe1+ 23.
Rxe1 Nf6 24. a4 Kg7 25. a5 $16 {At least Sergey would have more practical
chances than he had in the game.}) 22. Qe2 Rb7 23. Rb3 Nh5 24. Re3 {White has
a strategically winning position.} Ng7 25. g4 $5 {Usually if you see a move
like g4 you don't want to consider other options. Nevertheless 25.Re7 deserves
attention. At least White wins a pawn.} (25. Re7 $5 Rxe7 26. Qxe7 Nf5 27. Qxa7
Qb8 28. Qxb8 Rxb8 29. a4 $16) 25... Kf8 26. a4 {Nakamura even doesn't want to
think about Black's opportunity ...a6, ...b5.} f5 $5 {Sergey is trying to play
actively.} 27. Re5 $6 (27. Qb2 $1 Kg8 28. gxf5 $1 Rf7 (28... Nxf5 29. Re8+ Rxe8
30. Rxe8+ Kf7 31. Qh8 $18) 29. fxg6 hxg6 (29... Qxg6+ 30. Rg3 $18) 30. Be8 $1
Rc7 31. Re4 $18 {Black doesn't have any reasonable moves} Nf5 $2 32. Re6) 27...
fxg4 28. hxg4 Rf7 {Black's position has improved significantly. He has some
counterplay on the f-file. However we should admit that Black's position is
bad. The knight on e8 is out of play.} 29. Qe3 Qf6 30. Re2 Qf4 31. Qxf4 (31.
Re4 Qxe3 32. R2xe3 {White keeps rooks on the board. It is not easy to
determine where Black's position is more difficult.} h5 33. f3 Rd6 34. Kg2 Rdf6
35. Kg3 $16) 31... Rxf4 32. R5e4 $8 Rxe4 33. Rxe4 h5 34. f3 Kf7 35. Kg2 Kf6 36.
Re1 g5 {Sooner or later Black had to make this move.} 37. Kg3 Rh8 38. Bc6 Kf7
39. d6 h4+ $2 (39... hxg4 $8 {The only chance to continue resistance was} 40.
fxg4 (40. Kxg4 $2 Kf6 41. Bd5 Rh4+ 42. Kg3 Rh8 $11 43. a5 $2 Rd8) 40... Kf6 41.
Re7 Rd8 42. Bd7 $22 Rh8 $8 (42... Kg6 $2 43. Kf3 Kf6 44. Ke4 $18) 43. Kf3 Rh2
44. Bc6 (44. Ke4 $2 Re2+) 44... Ne6 $8 45. Bd5 Nd4+ 46. Kg3 Rh8 $1 47. Rxa7 Rd8
$16 {and White needs to choose between} 48. Ra6 $5 {or} (48. Rf7+ Ke5 49. d7 {
It is not obvious if White can win the endgame or not.})) 40. Kh2 Kf6 41. d7
Ne6 42. Bd5 $6 {The key to the win is the breakthrough f4. Fortunately for
Nakamura he managed to find it later.} (42. f4 $1 gxf4 43. g5+ Kf5 44. Bd5 Nc7
45. g6 Kxg6 (45... Kf6 46. g7 $1 Kxg7 47. Bg8 $3) 46. Bg8 $3 $18 {An amazing
line, isn't it?}) 42... Nc7 43. Be4 Ne6 44. Bd5 Nc7 45. f4 $1 $18 ({Nakamura
could postpone the breakthrough:} 45. Bc6 Ne6 46. f4 $1 gxf4 47. g5+ Kf5 48.
Bd5 Ng7 49. Re7 Kg6 50. Bf7+ Kxg5 51. Be8 $18) 45... gxf4 46. g5+ Kg6 (46...
Kf5 47. g6 $1 Kxg6 48. Bg8 $1 $18) 47. Re5 Rd8 48. Be4+ Kf7 49. Bf5 Rh8 50. Kg2
a5 51. Kf2 f3 52. Re1 $22 1-0

[Event "North American op 23rd"]
[Site "Las Vegas"]
[Date "2013.12.29"]
[Round "7"]
[White "Gareyev, Timur"]
[Black "Yermolinsky, Alex"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2650"]
[BlackElo "2510"]
[Annotator "Yermolinsky,A"]
[PlyCount "79"]
[EventDate "2013.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 {I had been doing reasonably well in
the tournament up to this point. For a critical late-round encounter with one
of the most dangerous opponents I decided to fall back on the Gruenfeld
Defense.} 5. h4 {The hunter becomes hunted. I actually considered this
possibility in my brief preparation because of Timur's famous game against Ray
Robson from the US Championship 2013.} c6 {This was played by Magnus Carlsen,
so it can't be bad, can it?} ({Armed with my great 20/20 hindsight I now wish
I followed Ian Nepo and played the simpler line} 5... O-O 6. h5 Nxh5 7. cxd5 c6
8. dxc6 Nxc6 9. e3 Bg4 10. Be2 Rc8 {where Black makes up for his lack of
firepower in the center by keeping his king safe. Hear my advice: the h-pawn
must be destroyed!}) 6. Bg5 O-O ({Some people tried} 6... Ne4 7. e3 Nxg5 8.
hxg5 e6 {in the spirit of the Moscow variation of the Semi-Slav.}) 7. Bxf6 Bxf6
8. h5 g5 $6 {So, I decided not to follow Grischuk-Carlsen, and, instead, took
the treacherous road previously traveled by Fabiano Caruana.} 9. h6 $1 (9. e4
dxe4 10. Nxe4 h6 {and Black did well in Nisipeanu-Caruana, played just a
couple of months before.}) 9... Bf5 {This automatic move may not be Black's
best.} ({Very interesting and thematic would be to to try} 9... dxc4 $5 10. Qd2
(10. e4 {is met by} g4 11. e5 gxf3 12. exf6 fxg2 13. Rg1 exf6 14. Rxg2+ Kh8 15.
Bxc4 Re8+ 16. Be2 Rg8 {How do you like this mess?}) 10... g4 11. Ne5 Be6 12.
Qf4 Nd7 13. Nxg4 Kh8) 10. e3 e6 11. Bd3 Bg6 12. Qe2 $1 {Finally, a novelty.} (
12. Bxg6 hxg6 13. e4 g4 $13 {was Weetik-Popov, I, also from 2013.}) 12... Nd7
13. Rd1 Re8 14. Kf1 {Gareev made a right decision by slowing the game down to
a crawl. The potential weakning of the d5-pawn keeps Black from entertaining
c6-c5 or e6-e5 ideas. Here I faced a problem of finding any reasonable play.}
a6 15. g3 b5 {Chebanenko visiting the Gruenfeld? Well, it works for Gata
Kamsky.} 16. cxd5 cxd5 $2 {A grave positional error, which highlights my lack
of understanding of the situation. White has made a commitment on the kingside,
and he's very unlikely to be able to effectively switch to the siege of the
backward c6-pawn. In the meantime, the e3-e4 push, which Timur smartly delayed,
remains White's main weapon.} ({Therefore, I had to play} 16... exd5 $1 17. Kg2
Nb6 18. a3 $1 ({Other moves are inferior:} 18. b3 Nc8) (18. Bxg6 hxg6 19. e4 b4
) (18. Qc2 Nc4 19. b3 Nd6) 18... Nc4 19. Bxg6 {arriving at an important
junction.} hxg6 (19... fxg6 20. e4 $1 dxe4 ({possibly better is} 20... Qd7 21.
e5 Qf5) 21. Nxe4 Re6 22. Rhe1 Be7 {Black position is far from being stable,
but he keeps up the fight.}) 20. e4 dxe4 21. Nxe4 Nd6 22. Nxf6+ Qxf6 23. Qc2
Nf5 {worse again, but tenable.}) 17. a3 $1 Nb6 18. Kg2 Rc8 {Already here I
became very unhappy with my prospects.} 19. Bxg6 hxg6 20. e4 Kh7 {The only
hope as far as I could tell was to grab the h6-pawn at an opportunate moment.}
21. Rd3 Nc4 (21... Na4 22. e5 Nxc3 23. bxc3 Be7 24. Qe3 $14) 22. e5 Be7 23. a4
$1 {Gareev gets to work to open a second front.} bxa4 24. Nxa4 Rb8 25. b3 Na5
26. Qe3 Rb4 27. Rc3 ({I was looking at} 27. Nc5 g4 28. Nd2 Bg5 29. f4 gxf3+ 30.
Qxf3 Qe7 31. Qf2 {and didn't like what I saw.}) 27... Nxb3 {I decided I might
as well grab a pawn just to have something to suffer for.} ({After} 27... g4
28. Nh2 f5 29. exf6 Bxf6 30. Rd1 Bg5 31. Qd3 {Black's position is a wreck.})
28. Rxb3 Rxa4 29. Rb7 a5 30. Qd3 Rf8 {Protecting against the Nxg5 threat.} ({
The other method,} 30... Kh8 {didn't occur to me. It wouldn't matter much
anyway: White is cruising after} 31. Rc1 Rc4 32. Rxc4 dxc4 33. Qxc4 Kh7 34. Qc6
Kxh6 35. Rd7 Qb8 36. d5) 31. Nh2 Rb4 (31... Rc4 32. Ng4 a4 33. Ra7 a3 34. Rb1
Rc7 35. Rbb7 Rxb7 36. Rxb7 $16) 32. Ra7 Kxh6 {Now or never....} 33. Ng4+ Kg7
34. Qf3 $1 Rg8 ({Here I was not pleased to discover the depth of Gareev's idea.
} 34... Rxd4 {gets swept aside in a spectacular fashion:} 35. Rxe7 Qxe7 36.
Qf6+ Qxf6 37. exf6+ Kg8 38. Nh6+ Kh7 39. f4 $1 {The 4th rank is blocked, so
the saving ...Rh4 won't happen. In the meantime the clumsy Rd4 cannot stop the
white pawn from queening after} Re8 40. Nf5+ Kg8 41. Ne7+ Rxe7 42. fxe7) 35.
Nf6 {Now this... My time was ticking away.} ({Actually,} 35. Nh6 Rf8 36. g4
Rxd4 37. Rxe7 Qxe7 38. Qh3 {was much stronger.}) 35... Rh8 36. Rd7 Qf8 37. Rc1
Rc4 38. Rxc4 dxc4 39. d5 c3 $2 ({For better or worse,} 39... g4 40. Nxg4 exd5
41. Qxd5 c3 42. e6 c2 43. Qd2 {although White has to winning in the end.}) 40.
Qxc3 1-0

[Event "Gashimov Memorial 4th"]
[Site "Shamkir"]
[Date "2017.04.29"]
[Round "8"]
[White "Wojtaszek, Radoslaw"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2745"]
[BlackElo "2772"]
[Annotator "Yermolinsky,A"]
[PlyCount "61"]
[EventDate "2017.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "AZE"]
[EventCategory "21"]
[SourceTitle "CBM 178"]
[Source "ChessBase"]
[SourceDate "2017.05.14"]
[SourceVersion "1"]
[SourceVersionDate "2017.05.14"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 Bg4 (7...
Bxd4 {is high on the not recommended list.} 8. Bh6 Be6 9. Qc2 c5 10. Nxd4 cxd4
11. Rd1 $16 {Novoselski-Djuric, 1990}) 8. Bb5+ c6 9. Ng5 $1 {The ownership of
this unexpected idea belongs to Illescas, although he lost to Negi in 2010.
Ever since, it has drawn a lot of attention from top players: Nakamura,
Topalov, Aronian, Navara etc..} O-O 10. Be2 Bxe2 (10... Bc8 11. h4 $1) 11. Nxe2
{Somehow the d4-pawn survived.} Na6 $5 {Shak is not the kind of man to back
down, but what follows requires Black to walk a tightrope - perhaps, not the
most optimal strategy when the tournament victory needs to be secured above
anything else.} ({Wojtaszek had already had a game in this line. His opponent 
(Jumabaev, 2016) chose wisely:} 11... h6 12. Nf3 Na6 13. Be3 {White has a
normal opening advantage, and the pawn on h6 may cause Black some headache
later in the game, but, more importantly, he's not getting mated any time soon.
}) 12. Qh3 h6 13. Nf3 h5 14. Rg1 Nb4 {I am not familiar with this move.} ({
All I know is that Sutovsky played} 14... Nd7 {twice in 2013. The thematic} 15.
e5 {is best, and this is what Cheparinov used against Sutovsky:} ({Emil
survived against Jakovenko after} 15. g4 Nf6) 15... Nb4 16. g4 Nc2+ 17. Kf1
Nxe5 18. Nxe5 Bxe5 19. gxh5 Qc8 20. Rg4 Qf5 21. dxe5 Rad8 22. hxg6 {Here Black
played the unfortunate} Rd1+ (22... fxg6 23. Nf4 Rd1+ {was the right move
order. According to the engines, this, like nearly every other forced line in
today's chess, should end in a draw.}) 23. Kg2 Ne1+ (23... fxg6 24. Qb3+) 24.
Kg3 Qf3+ 25. Kh4 Qxf2+ 26. Kg5 {and White is winning. An absolute brilliancy
from Ivan Cheparinov. I know the Short-Timman king walk was instructive, but
in that game Black could barely move his pieces. This one has a much higher
degree of difficulty.}) 15. g4 $1 {Radoslaw is not going to be denied!} Qd7 (
15... Nc2+ 16. Kf1 Nxa1 17. gxh5 Qd7 18. Qh4 {doesn't really change anything.})
16. Qh4 $1 Nc2+ 17. Kf1 Nxd4 {Rejecting the rook must not have easy to
Mamedyarov.} (17... Nxa1 18. gxh5 {Here Black won't be able to save his king
without suffering heavy losses. One line goes as follows:} Bf6 (18... Nc2 19.
hxg6 fxg6 20. Ng5 Rf6 21. Qh7+ Kf8 22. e5 Rf5 23. Qxg6 Rxg5 24. Rxg5 e6 25.
Qxc2) (18... Nd5 $5 19. exd5 cxd5 20. hxg6 fxg6 21. Ng5 Rf6 22. Qh7+ Kf8 23.
Nf4 Qf5 24. Nge6+ Rxe6 25. Nxe6+ Qxe6 26. Rxg6 Qg8 27. Rxg7) 19. Bg5 Bg7 20. h6
$1 Bf6 21. Bxf6 exf6 22. Ng3 $1 (22. Qxf6 $4 Qh3+) 22... Kh7 23. Qxf6 Qh3+ 24.
Rg2 Qxh6 25. Ng5+ Kg8 26. Nf5 {curtains.}) 18. Nexd4 Bxd4 19. gxh5 Bf6 20. Bg5
{It looks to me like White just got himself a free ride.} Bxb2 21. Re1 Qd3+ 22.
Kg2 f6 23. Bh6 g5 {A desperate attempt to stop the flood.} 24. Nxg5 $1 {
When the levee breaks....} Rf7 25. Nxf7 Kxf7 26. Re3 Qc2 27. Rg3 Bd4 28. Rg7+
Ke6 29. Qg4+ Kd6 30. Be3 Bxe3 31. Qg3+ 1-0

[Event "Chicago op 22nd"]
[Site "Wheeling"]
[Date "2013.05.26"]
[Round "7"]
[White "Yermolinsky, Alex"]
[Black "Kleinman, Michael"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2498"]
[BlackElo "2302"]
[Annotator "Yermolinsky,A"]
[PlyCount "49"]
[EventDate "2013.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 {As I career Gruenfeld player I
took note of this move as it appeared in top-level games thanks to efforts of
Morozevich, Mamedyarov and many others. Having looked at some of those as part
of my job as online commentator, I figured I was ready to get myself a piece
of action.} dxc4 6. e4 Bg4 {This is a logical move because it stops h4-h5.
Black is also counting on a standard plan of putting pressure against the
d4-pawn, similar to the Russian System with Qb3. The similarity, however, is
not complete: here White's development is more streamlined because he doesn't
waste time on queen moves. I'd rather compare this situation with some failed
attempts to incorporate Gruenfeld ideas into the Queens Gambit Accepted.} ({
A lot has been said about} 6... c5 7. d5 b5 {I can only add that after} 8. h5 {
Black's best appears to be not castling, but rather} Nxh5 9. Nxb5 O-O 10. Bxc4
Nd7 {which was played by Vachier-Lagrave against Mamedyarov twice!}) 7. Bxc4
O-O 8. Be3 Nc6 9. d5 $1 {During the game I came to a conclusion that all plans
with e4-e5 are ineffective because of the Nh5 blockade. Now I'm not so sure.} (
{It is quite a stretch to assume Black survives} 9. e5 Nh5 10. Ne4 {but he
certainly has play after} Qc8) 9... Ne5 (9... Bxf3 10. gxf3 Na5 11. Be2 c6 {
is an attempt at counterplay, but White emerges on top after} 12. b4 Nxd5 13.
Nxd5 cxd5 14. exd5 Bxa1 15. Qxa1 Qxd5 16. Bh6 f6 17. Bxf8 Kxf8 18. bxa5) 10.
Be2 Nxf3+ (10... Nh5 11. Qb3 Qc8 12. O-O-O {White's way ahead a normal
schedule of the Qb3 system.}) 11. gxf3 Bh5 12. e5 (12. Qb3 Nd7 13. O-O-O) 12...
Ne8 13. f4 Bxe2 14. Qxe2 f6 $1 {Gotta give him credit for this one. I had to
sit down and calculate a lot of stuff.} 15. f5 $5 {A trademark Kramnik pawn
push that took me some effort to find.} ({First, I dumped} 15. Bd4 {is too
slow:} c6) ({Second,} 15. e6 f5 16. O-O-O Nf6 {went down the drain, as my pawn
structure looked ugly.}) ({So, I switched to} 15. h5 {expecting it to work,
but upon closer examination} fxe5 16. hxg6 hxg6 ({I was ready for} 16... exf4 {
with the wicked shot} 17. Bd4 $1 {but even here Black manages to keep his head
above the water:} Qd6 18. Bxg7 Nxg7 19. gxh7+ Kh8 20. O-O-O f3 21. Qd3 e6) 17.
fxe5 Bxe5 18. O-O-O Qd6 {didn't appear so convincing.}) 15... gxf5 (15... fxe5
16. fxg6 hxg6 17. h5 {has to be strong for White.}) 16. e6 Kh8 $1 {The
Canadian player defends tenaciously. His plan is to play Rg8 and clear the
f8-square for his bishop.} ({Otherwise,} 16... Nd6 17. h5 h6 18. Rg1 {is
prosaic.}) 17. O-O-O (17. h5 Rg8) 17... Nd6 18. h5 Rg8 19. Qf3 $2 {I switched
my plan in favor of the Nc3-e2-f4-g6 idea, but it never materializes.} ({
I should have stick to the basics:} 19. Rdg1 Qe8 20. f3 $1 {That's the move I
didn't see.} c6 21. h6 Bf8 22. Rxg8+ Kxg8 23. Rg1+ Kh8 24. Qg2 Qg6 {and now
the final queen approach:} 25. Qh3 Qe8 26. Qg3 Qg6 27. Qh4 Qe8 28. Bd4 $18 Qd8
29. Qg5) 19... Nc4 20. Bf4 (20. h6 {I was not to happy with surrendering the
g6-square.} Bf8 21. Bf4 Nd6 22. Ne2 Qe8 23. Kb1) 20... Ne5 21. Qe2 $5 {Once
again, I chose the most complex continuation.} (21. Bxe5 fxe5 22. h6 Bf6 23.
Qxf5 Bg5+ 24. Kb1 Bf4 25. Ne4 $16 {wasn't enough for me.}) 21... Qd6 22. Kb1 $1
Qb4 23. Rh4 $1 Bh6 $2 {He walks into the main line.} ({I expected} 23... Ng4 {
and prepared} 24. Bxc7 Rac8 25. d6 $1 exd6 26. Nd5 Qc5 27. f3 Ne5 28. h6 Bf8
29. e7 Bxe7 30. Nxe7 Qxc7 31. Nxg8 Rxg8 32. Rhd4 $18) ({As usual,} 23... h6 {
is nothing to worry about.} 24. Bg3 Qc5 25. Qc2 $16) ({And finally, on} 23...
Nc4 {I had} 24. Bg3 (24. Ka1 Qc5 25. Bc1 Ne5 26. Qc2) 24... b5 25. Nxb5 Qxb5
26. Qxc4 $18) 24. Qxe5 Rg4 25. Rxg4 1-0