[Event "Bugojno"]
[Site "Bugojno"]
[Date "1978.03.09"]
[Round "10"]
[White "Portisch, Lajos"]
[Black "Byrne, Robert Eugene"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2630"]
[BlackElo "2550"]
[Annotator "Bulletin"]
[PlyCount "130"]
[EventDate "1978.02.27"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[EventCategory "14"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. Nh4 Ne7 12. a4 Re8 (12... c4 {
Unzicker-Byrne, Haifa 1976} 13. Bb1 {/\Ra2-e2, f3+/=}) 13. Ba3 c4 14. Bc2 Ng6
15. Nf5 Ne4 16. Bxe4 Rxe4 17. Ng3 Re8 18. Qh5 Qd7 (18... Qc6 19. a5 Nf8 $10 {
Panno-Korchnoi, Palma de Mallorca 1969}) 19. a5 f5 20. Qf3 Qf7 21. Bd6 Be6 22.
Rab1 Rad8 23. Bf4 (23. Bc5 f4 24. exf4 Nxf4 {/\..h5}) 23... h6 24. Ne2 Nxf4 (
24... Nh4 25. Qg3 g5 26. Bxg5 hxg5 27. Qxg5+ Ng6 28. Nf4 {/\Rxb7}) 25. Nxf4 g5
26. Nxe6 $1 (26. Ne2 Kh7 {/\..Rd7,..h5,..f4}) 26... Rxe6 27. Rb5 Re4 28. Rfb1
Rd7 29. Qg3 f4 30. exf4 Qxf4 (30... Rxf4 31. h4 $1 Rxh4 32. Qb8+ $16) 31. Qxf4
gxf4 32. Kf1 Ree7 33. Rc5 $1 f3 $1 (33... Re8 34. Rbb5 Red8 35. Ke2 $16) 34.
gxf3 Rf7 35. Rc8+ Kh7 36. Ra8 a6 37. Rb8 Rxf3 38. R8xb7 Rxb7 39. Rxb7+ Kg6 40.
Rd7 Rxc3 41. Rxd5 Rd3 42. Ke2 h5 43. h4 Kh6 44. f4 Kg6 45. Rg5+ (45. f5+ Kf6
$10) 45... Kh6 46. Rc5 Rxd4 47. Ke3 Rd3+ 48. Ke4 Ra3 49. Ke5 c3 50. f5 c2 {
/\..Rxa5} 51. Rxc2 Rxa5+ 52. Ke6 Rb5 53. Rd2 Rb6+ 54. Rd6 Rb7 55. Rd8 Rb6+ 56.
Kf7 Kh7 $1 57. f6 Rb7+ 58. Ke6 Rb6+ 59. Rd6 Rb8 60. Rd5 Rb6+ 61. Kf5 Kh6 $1 62.
Rd8 Rb5+ 63. Ke6 Rb6+ 64. Ke7 Rb7+ 65. Rd7 Rb8 1/2-1/2

[Event "CHN-RUS Summit Men 7th"]
[Site "Ningbo"]
[Date "2010.08.09"]
[Round "5"]
[White "Potkin, Vladimir"]
[Black "Wang, Hao"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2626"]
[BlackElo "2724"]
[Annotator "CB"]
[PlyCount "60"]
[EventDate "2010.08.05"]
[EventType "schev"]
[EventRounds "5"]
[EventCountry "CHN"]
[SourceTitle "CBM 138"]
[Source "ChessBase"]
[SourceDate "2010.09.17"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. Bb2 Na5 11. cxd5 exd5 12. Ne5 Re8 13. a4 {#} Rxe5 $5 {
An interesting exchange sacrifice for which Black gets a pawn and some juicy
squares for his knights.} 14. dxe5 Qxe5 15. h3 (15. e4 {was worth considering.
If} dxe4 {then} 16. Bxe4 {and the bishop is untouchable thanks to the back
rank weakness.}) 15... c4 16. Bc2 Bf5 {The idea is simply to exchange off the
white squared bishop, after which both the b3 and d3 squares are open to his
knights.} 17. Re1 Bxc2 18. Qxc2 Nb3 19. Rad1 Re8 20. f3 Nc5 21. Rd4 Nd3 {#} 22.
Re2 $2 ({White really had to give the exchange back with} 22. Rxd3 cxd3 23.
Qxd3 {and while a bit worse, should be able to hold. As it is, the knight left
on d3 is just too to be left as is.}) 22... Nh5 23. e4 ({Now it is too late
since} 23. Rxd3 $2 {fails to} cxd3 24. Qxd3 Nf4 $1 $19) 23... Nhf4 24. Rd2 f5
25. Ba3 fxe4 26. fxe4 Qg5 27. Kh2 Rxe4 28. Qd1 Qe5 29. Rxe4 dxe4 30. Qg4 h5 0-1

[Event "Gibraltar Masters 13th"]
[Site "Caleta"]
[Date "2015.01.28"]
[Round "2"]
[White "Debashis, Das"]
[Black "Topalov, Veselin"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2503"]
[BlackElo "2800"]
[Annotator "CB"]
[PlyCount "91"]
[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. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4
Nc6 9. a3 Bxc3 10. bxc3 Qc7 11. h3 e5 12. a4 Bf5 {This tabiya of the
Rubinstein Variation in the Nimzo-Indian always promises interesting games.}
13. Ba3 b6 14. Bb5 e4 15. Nd2 Na5 16. Qe2 Rfd8 17. Rfc1 Be6 18. Rab1 Rd5 $5 {
Topalov is always looking for aggressive chances. Here he is planning to swing
his rook over to the kingside, with some serious threats.} 19. Qf1 Rg5 20. Kh1
Rd8 21. Be2 {White's kingside is holding, but he doesn't seem to be making any
progress of his own.} Rg6 22. f4 {Even though it is hard to come up with an
alternative, this seems to weaken White's position too much.} exf3 23. Bxf3 Qd7
(23... Rh6 $5 {Was stronger to play first. The idea is actually quick simple;
rip the game apart with g5-g4.} 24. Qf2 g5 25. e4 g4 26. Be2 gxh3 27. g3 Nc4 $3
$17 {sctacular, but not the only move} 28. Bxc4 Bxc4 {and the piece is taboo
because of} 29. Nxc4 Nxe4 30. Qe3 Nxg3+ 31. Kg1 h2+ 32. Kg2 Rg6 $19) 24. Ra1
Nd5 25. Qf2 Bxh3 $1 26. c4 (26. gxh3 Qxh3+ 27. Qh2 Qe6 $19 {leaves White's
king too vulnerable to the attacks on the h and g files.}) 26... Nf6 27. gxh3
cxd4 (27... Qxh3+ 28. Qh2 Qe6 {was still very strong.}) 28. e4 Nb3 $1 {A nice
distraction tactic.} 29. Bg2 (29. Nxb3 Qxh3+ 30. Qh2 Qxf3+ {and mate}) 29...
Nxa1 30. Rxa1 Re8 $6 {From here on Topalov seems to lose the thread of the
game a little.} (30... Qc7 {was stronger, with the idea of relocating the f6
knight to a more powerful square, either e5, c5 or h5.}) 31. Bb2 Nh5 32. Ra3 d3
$2 (32... Rf6 $15) 33. e5 {Now White is fully back in the game. Black is not
coordinated enough to push his d-pawn.} Rg3 34. Kh2 Qc7 35. Ne4 {Suddenly that
rook on g3 is in serious problems.} d2 36. Rxg3 d1=Q 37. Nf6+ Kh8 38. Nxe8 {
A crazy position! Black has two queens and a knight against a queen, a rook,
and three pieces. Black must exchange queens or he will get mated very soon.}
Qc5 39. Qxc5 bxc5 40. e6 fxe6 (40... f6 $1) 41. Bxg7+ (41. Rg4 $1 {and then
taking on g7 with the knight instead, kept some winning chances.}) 41... Nxg7
42. Nxg7 Qxa4 43. Nxe6 Qxc4 44. Ng5 a5 45. Ne4 a4 46. Rc3 {Oddly enough the
game fizzled into a draw. In this position some computers might claim that
this is better for Black, but that is clearly not the case. As soon as White
takes the pawn on c5 and sacrifices something for the a-pawn the position
cannot be won, even if White sacrifices the rook!} 1/2-1/2

[Event "Candidates Tournament"]
[Site "Amsterdam/Leeuwarden"]
[Date "1956.03.27"]
[Round "1"]
[White "Geller, Efim P"]
[Black "Petrosian, Tigran V"]
[Result "1-0"]
[ECO "E58"]
[Annotator "ChessBase"]
[PlyCount "91"]
[EventDate "1956.03.27"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "NED"]
[SourceTitle "Candidates"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 (9... dxc4 10. Bxc4 Qc7 11. Bd3) 10. Qc2 $6 (10. cxd5 exd5 11.
a4 (11. Nh4)) 10... Na5 11. cxd5 (11. Ne5 dxc4 12. Nxc4 Nxc4 13. Bxc4 cxd4 14.
cxd4 Bd7 15. Qe2 Rac8 16. Bd3 Ba4 $10 {Borisenko-Khasin, 23rd URS-ch,
Leningrad 1956}) 11... c4 12. Be2 exd5 13. Nd2 $1 Bg4 $2 (13... Re8 $142 {
(/\ ... g6, ... Bf5)} 14. Bf3 (14. h3 g6 15. g4 h5 16. gxh5 Bf5 (16... Bxh3)) (
14. f3 Rxe3 15. Ne4 Rxe4 16. fxe4 Nxe4 $13) 14... g6 15. e4 dxe4 16. Nxe4 Nxe4
17. Bxe4 Nb3 18. Ra2 Nxc1 19. Rxc1 Qf4 $15) 14. Bxg4 Nxg4 15. g3 f5 16. Rb1 Nc6
$2 {Geller} (16... Qd7) (16... b6 17. a4 Rae8 18. Ba3 Rf6 19. Rfe1 Qf7 20. Nf1
Rfe6 $36 {<-> e |^>> (Euwe)}) 17. a4 Qd7 (17... Rae8 $142 18. Rb5 Qd7) 18. Ba3
Rfe8 19. Rfe1 b6 20. Re2 $1 Qe6 (20... g6 21. Rbe1 Re6 22. f3 Nf6 23. e4) 21.
Rbe1 Qh6 22. Nf1 Qh5 23. f3 Nf6 24. Nd2 Re6 25. e4 Rae8 26. e5 Nd7 27. Nf1 $1 (
27. f4 $6 Nf6 $1 28. Nf1 Ne4 29. Ne3 Rd8 $10 {Polugayevsky}) 27... Qxf3 28. Rf2
Qd3 29. Qc1 {/\ 30.Re3} Nxd4 30. cxd4 Qxd4 31. Rd1 Qg4 (31... Qxe5 32. Bb2 Qd6
(32... Qe4 $2 33. Rd4) 33. Rxf5 $18) 32. Ne3 Qe4 33. Rf4 $1 Qxe5 34. Nxd5 Qe2
35. Rf2 Qxd1+ 36. Qxd1 Re1+ 37. Rf1 Rxd1 38. Rxd1 Ne5 39. Ne3 $6 $138 (39. Ne7+
{/\ 40.Nxf5}) 39... c3 40. Kf2 g5 41. h3 Rc8 42. Rd5 Nc4 43. Bc1 Nb2 44. Nxf5
Rc4 $2 (44... Rc5 $142) 45. Rd8+ Kf7 46. Nd6+ 1-0

[Event "Candidates Tournament"]
[Site "Zuerich"]
[Date "1953.08.31"]
[Round "2"]
[White "Reshevsky, Samuel Herman"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
[ECO "E58"]
[Annotator "ChessBase"]
[PlyCount "81"]
[EventDate "1953.08.30"]
[EventType "tourn"]
[EventRounds "30"]
[EventCountry "SUI"]
[SourceTitle "Candidates"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 b6 10. cxd5 exd5 11. Bb2 (11. a4 cxd4 12. cxd4 (12. exd4 Ne4)
12... Nb4) (11. dxc5 bxc5 12. c4 Rb8 $1) 11... c4 12. Bc2 Bg4 13. Qe1 Ne4 (
13... Bxf3) 14. Nd2 Nxd2 15. Qxd2 Bh5 16. f3 Bg6 17. e4 Qd7 18. Rae1 dxe4 19.
fxe4 Rfe8 20. Qf4 (20. a4 Ne5 $1 21. Ba3 Nd3 22. Bxd3 cxd3 23. Qxd3 Qxa4) 20...
b5 21. Bd1 Re7 22. Bg4 Qe8 23. e5 a5 24. Re3 Rd8 25. Rfe1 {[#]} Re6 $1 {
[%mdl 32] Petrosian's best known strategical exchange sacrifice. Petrosians
berühmtes postionelles Qualitätsopfer.} 26. a4 $32 (26. h4 {/\ h4-h5, Rg3})
26... Ne7 (26... b4 27. d5 Rxd5 28. Bxe6 fxe6 29. Qxc4) 27. Bxe6 fxe6 28. Qf1 (
28. Qf2 Nd5 29. Rf3 b4) 28... Nd5 29. Rf3 Bd3 30. Rxd3 cxd3 31. Qxd3 b4 32.
cxb4 (32. c4 Nb6 33. Rc1 Nxa4 34. Ba1 Qc6) (32. c4 Nb6 33. d5 exd5 34. c5 Nxa4
35. Bd4 Rc8 36. Qf3 Qe6) 32... axb4 (32... Nxb4 33. Qb3 Nd5) (32... Nxb4 33.
Qb5 Qxb5 34. axb5 Nd3 35. Re2 Rb8 36. Rd2 Rxb5 37. Rxd3 Rxb2 38. d5 $10) 33. a5
Ra8 34. Ra1 Qc6 35. Bc1 Qc7 (35... Rxa5 $2 36. Rxa5 Qxc1+ 37. Qf1 Qe3+ 38. Kh1
h6 39. Ra8+ Kh7 40. Qb1+ g6 41. Ra7+ Kh8 42. h3) 36. a6 Qb6 37. Bd2 b3 38. Qc4
h6 39. h3 b2 40. Rb1 Kh8 41. Be1 {[Bronstein]} 1/2-1/2

[Event "Linares zt"]
[Site "Linares"]
[Date "1995.??.??"]
[Round "11"]
[White "Van der Sterren, Paul"]
[Black "Renet, Olivier"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2545"]
[BlackElo "2520"]
[Annotator "Dautov,R"]
[PlyCount "51"]
[EventDate "1995.11.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESP"]
[SourceTitle "CBM 051"]
[Source "ChessBase"]
[SourceDate "1996.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 $6 (13... Ne4
$142) 14. Qe1 Bh5 (14... Bxf3 15. gxf3 Qd7 16. Kg2 $14 {ECO}) 15. Nh4 Ng4 16.
g3 Bg6 17. Nxg6 hxg6 18. Qd2 $1 (18. Qe2 $6 Qd7 19. h3 Nf6 $10 {
Geller-Matanovic/Bled/1961/}) 18... Re6 {N} (18... f5 $6 19. Rae1 Nf6 20. f3
$16 {/\ g4} Qd7 (20... Re6 21. g4 fxg4 22. e4 $1 $40 {Yusupov}) 21. g4 fxg4 22.
Bxg6 Ne7 $1 23. Bxe8 Rxe8 24. Bxe7 Rxe7 25. Qg2 $18 {Yusupov,A-Lobron,E/
Muenchen 1994}) (18... Na5 19. Rae1 Nb3 20. Qd1 $16 {Yusupov}) (18... Qd7 19.
Rae1 Nf6 20. f3 $16) 19. e4 $1 $16 (19. Rae1 Rae8 20. e4 $2 dxe4 21. d5 Nce5
22. Bxe4 (22. f4 $2 Nf3+ 23. Rxf3 exf3 $19) 22... Nxh2 $1 23. Kxh2 Ng4+ 24. Kh1
Rxe4 25. Rxe4 Rxe4 26. f3 Ne3 27. Re1 Qxg3 28. fxe4 Qh4+ 29. Kg1 Qg3+ $10)
19... dxe4 20. d5 Rd8 $2 (20... Nce5 21. Bxe4 $1 (21. f4 $2 Qb6+ 22. Qd4 (22.
Kh1 Nf3 23. Rxf3 exf3 24. dxe6 Nf2+ 25. Kg1 Nh3+ $10) 22... Nf3+ 23. Rxf3 exf3
24. dxe6 Qxe6 {/\Qe2-+} 25. Be4 (25. Qe4 Qb6+ 26. Qd4 Qxd4+ 27. cxd4 f2+ $17)
25... f2+ 26. Kg2 Re8 27. Bf3 Ne3+ 28. Kxf2 Nc2 29. Qd1 Qb6+ $19) 21... Rd8 (
21... Nxh2 $2 22. Qd1 $1 Nxf1 23. dxe6 Nxg3 24. fxg3 $18) 22. Bg2 Nf6 23. Qd4
$16) (20... e3 21. fxe3 Rxe3 22. Bc5 $1 (22. dxc6 Rd8 23. Qg2 Rxc3 $13) 22...
Re5 23. Qf4 f5 (23... Nxh2 24. Kxh2 Rh5+ 25. Kg1 Qxf4 26. Rxf4 Rxd5 27. Be3 $16
) 24. dxc6 Qxc6 25. Bf2 Re2 26. Bd1 Ne3 27. Qxe3 Rxe3 28. Bxe3 $16) 21. Qe2 $18
Rxd5 22. Qxg4 Qe5 23. Qf4 Qxf4 (23... Qxc3 24. Bxe4 Rd4 25. Qf3 $18) 24. gxf4
Rd2 25. Ra2 {/\Bc1} e3 26. fxe3 (26. fxe3 Rxe3 27. Bc1 $18) 1-0

[Event "NED-ch51"]
[Site "Amsterdam"]
[Date "1996.06.07"]
[Round "1"]
[White "Van der Sterren, Paul"]
[Black "Cifuentes Parada, Roberto"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2535"]
[BlackElo "2490"]
[Annotator "Dautov,R"]
[PlyCount "73"]
[EventDate "1996.06.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[EventCategory "11"]
[SourceTitle "CBM 054"]
[Source "ChessBase"]
[SourceDate "1996.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Ne4 14. Bxe4 (14.
Qe1 Qd8 $1 15. Bxe4 Rxe4 16. Nd2 Re8 $10) 14... Rxe4 15. Nd2 Re8 $1 (15... Rh4
16. g3 Rh6 17. e4 (17. f3 $6 Bh3 18. Rf2 Rg6 19. Kh1 Re8 20. e4 dxe4 21. fxe4
Na5 22. Qe2 Nb3 23. Re1 Nxd2 24. Qxd2 Qc6 25. d5 Qxa4 $17 {Azmaiparashvili,
Z-Ljubojevic,L/Leon (05) 1994}) 17... Qa5 $2 (17... Be6 $142) 18. Re1 Be6 19.
Re3 $1 dxe4 20. Nxe4 Qh5 21. h4 $16 {Kamsky,G-Almasi,Z/Groningen 1995}) 16. e4
{N} (16. Qf3 Be6 17. e4 Qa5 18. Bc5 Ne5 (18... Rad8 $1) 19. Qh5 Nd3 20. exd5 g6
$2 (20... Nf4 $142) 21. Qf3 Nxc5 22. dxe6 Nxe6 23. Nxc4 $16 {
Gligoric-Sigurjonsson/ Ljubljana/Portoroz 1977}) 16... Be6 17. e5 Qa5 (17...
Bf5 $5 18. f4 Qa5 19. Bb2 Qb6 20. Ba3 Qa5 $10) 18. Qc2 (18. Rc1 $6 b5 19. axb5
Nxd4 20. cxd4 Qxa3 21. Nb1 Qb4 22. Nc3 a6 23. bxa6 Rxa6 $10) (18. Qf3 $2 Nxd4
$17) 18... g6 $6 {><f6,h6} (18... Qd8 19. f4 g6 20. Nf3 (20. f5 Bxf5 21. Rxf5
gxf5 22. Qxf5 Re6 23. Rf1 $44) 20... Bf5 21. Qf2 a6 $132) 19. Nf3 Bf5 (19...
Bg4 20. Nh4 Qd8 21. g3 f6 22. f4 $14 (22. Nxg6 Qd7 $13)) 20. Qd2 {/\Qh6,Ng5}
Nd8 $1 (20... Qxa4 $4 21. Qh6 $18) (20... Kg7 21. Bc1 $18) (20... Be4 21. Ng5
Bd3 22. Qf4 $16) 21. Bb4 Qc7 22. h3 Ne6 (22... Bd3 23. Rfd1 $16 {/\Ne1,/\g4,Ne1
}) 23. Ne1 $6 {/\g4} (23. Qh6 $5) (23. g4 $1 Bd3 (23... Be4 24. Ne1 g5 25. f3
Bg6 26. Ng2 $16) 24. Rfd1 Be4 25. Ne1 g5 26. f3 Bg6 27. Ng2 $16 {/\h4,f4})
23... h5 (23... Rac8 $2 24. g4 Bd3 25. Nxd3 cxd3 26. a5 g5 27. Qxd3 Nf4 28. Qf5
$16) (23... g5 $5 24. g4 (24. Nf3 h6 25. Nh2 h5) 24... Bg6 25. Ng2 (25. f3 $2 {
/\Ng2} f5 $1 26. exf6 Qg3+ 27. Qg2 Qf4 $15) (25. h4 h6) 25... Bd3 $1 26. Rfe1
Be4 $132) 24. Qh6 (24. f3 h4 25. Qh6 Qd8 $13) 24... Bd3 $4 (24... a5 $5 25. Bd6
Qb6 $13) (24... Qd8 $5 25. f4 Qh4 $132) 25. Nxd3 cxd3 26. Qd2 $18 a5 (26...
Rac8 27. a5 $18) 27. Bd6 Qc4 28. f4 Rac8 (28... Ng7 29. g4 hxg4 30. hxg4 Rac8
31. Ra3 $18 {/\f5}) 29. f5 gxf5 30. Rxf5 Ng7 (30... Qxc3 31. Rg5+ Nxg5 32.
Qxg5+ Kh7 33. Rf1 Qxd4+ 34. Kh2 Rf8 35. Rf6 $18) 31. Rg5 Re6 32. Rf1 Qxa4 33.
Rf6 Rxd6 (33... Qa1+ 34. Kh2 Qxc3 35. Rxg7+ Kxg7 36. Qg5+ Kh8 37. Rxf7 $18) 34.
exd6 Qc2 35. Rxg7+ Kxg7 36. Qg5+ Kf8 37. Rh6 1-0

[Event "Leon"]
[Site "Leon"]
[Date "1994.??.??"]
[Round "5"]
[White "Azmaiparashvili, Zurab"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2625"]
[BlackElo "2600"]
[Annotator "Franco"]
[PlyCount "121"]
[EventDate "1994.05.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ESP"]
[EventCategory "12"]
[SourceTitle "CBM 042"]
[Source "ChessBase"]
[SourceDate "1994.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 (9... Qc7 {es una de las posibilidades de las negras en esta
antigua posición, que obtuvo gran popularidad a partir de los años 50; la
alternativa principal es 9...dxc4 para luego jugar e5.}) 10. cxd5 exd5 11. a4
Re8 (11... Re8 {es una jugada bísica en el plan de las negras que es el de
"frenar" el avance e4 de las blancas, de esta manera se logra que los alfiles
blancos no ejerzan el míximo de actividad.Se anticipa, ademís, al movimiento
que sigue.}) 12. Ba3 c4 13. Bc2 Ne4 14. Bxe4 Rxe4 15. Nd2 Rh4 16. g3 Rh6 17. f3
Bh3 18. Rf2 Rg6 19. Kh1 Re8 20. e4 dxe4 21. fxe4 Na5 22. Qe2 Nb3 23. Re1 Nxd2
24. Qxd2 Qc6 25. d5 Qxa4 26. Bc5 b6 27. Bd4 Qd7 28. Kg1 h6 29. Rf4 Rg4 30. Qf2
f5 31. exf5 Rxf4 32. gxf4 Rxe1+ 33. Qxe1 Qxf5 34. Qe6+ Qxe6 35. dxe6 Bxe6 36.
Kf2 Kf7 37. Ke3 g6 38. Be5 a5 39. Kd2 b5 40. Kc1 Bd7 41. Bc7 a4 42. Bd6 Ke6 43.
Bf8 h5 44. h4 Kf5 45. Bh6 Ke4 46. Kc2 Bf5 47. Kb2 {[#]} b4 48. Bf8 bxc3+ $2 (
48... a3+ $1 49. Ka2 bxc3 50. Bxa3 Kxf4 {ganando según Ljubojevic.}) 49. Kxc3
Be6 50. Bd6 Bf7 51. Be7 Kxf4 52. Kb4 Ke4 53. Kxa4 c3 54. Kb4 Kd3 55. Bf6 c2 56.
Bg5 Be6 57. Bh6 Bf7 58. Bg5 Be6 59. Bh6 Bd5 60. Bg5 Bg8 61. Bh6 1/2-1/2

[Event "Candidates FIDE f2"]
[Site "Sanghi Nagar"]
[Date "1995.??.??"]
[Round "7"]
[White "Kamsky, Gata"]
[Black "Salov, Valery"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2710"]
[BlackElo "2715"]
[Annotator "Ftacnik,L"]
[PlyCount "47"]
[EventDate "1995.02.??"]
[EventType "match"]
[EventRounds "7"]
[EventCountry "IND"]
[SourceTitle "CBM 045"]
[Source "ChessBase"]
[SourceDate "1995.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 c4 12. Bc2 Re8 (12... Bg4 13. Qe1 Bxf3
14. gxf3 Qd7 15. Qe2 Rfe8 16. Kh1 Qh3 17. Rg1 Nh5 18. e4 Re6 19. Be3 Ne7 20.
Rab1 b6 21. Rg5 Rh6 22. Rg4 Nf6 23. Rg2 Rh5 24. e5 {Azmayparashvili,Z-Vaganian,
R/Manila olm (13.03.1)/1992/0.5 (28)}) 13. Nd2 (13. Ba3 Ne4 (13... Bg4 14. Qe1
Bh5 15. Nh4 Ng4 16. g3 Bg6 17. Nxg6 (17. Bd1 Qd7 18. Nxg6 hxg6 19. Ra2 f5 $6
20. Re2 Nf6 21. f3 Re6 $2 22. Bc2 Rae8 23. g4 $3 fxg4 24. Bxg6 {Kortschnoj,
V-Illescas Cordoba,M/Buenos Aires Najdorf (03)/1993/}) 17... hxg6 18. Qe2 (18.
Qd2 f5 19. Rae1 Nf6 20. f3 Qd7 21. g4 fxg4 22. Bxg6 Ne7 23. Bxe8 Rxe8 24. Bxe7
{Yusupov,A-Lobron,E/Munich SKA (03)/1994/1-0 (58)}) 18... Qd7 19. h3 Nf6 20.
Kh2 Re6 21. f3 Rae8 {Geller,E-Matanovic,A/Bled (07)/1961/0.5 (22)}) 14. Qe1 (
14. Bxe4 Rxe4 15. Nd2 Rh4 16. g3 Rh6 17. f3 Bh3 18. Rf2 Rg6 19. Kh1 Re8 20. e4
dxe4 21. fxe4 Na5 22. Qe2 Nb3 23. Re1 Nxd2 24. Qxd2 {Azmaiparashvili,
Z-Ljubojevic,L/Leon (05)/1994/0.5 (61)}) 14... Re6 (14... Qd8 15. Bxe4 Rxe4 16.
Nd2 Re8 17. f3 Qa5 18. Bb2 b5 19. axb5 Qxb5 20. Ba3 Na5 21. Qe2 Bd7 22. Rfb1
Nb3 23. Nxb3 cxb3 24. Qxb5 {Bannik,A-Averbakh,Y/URS-ch25 Riga/1958/0-1 (57)})
15. Nh4 Qd8 16. f3 Nd2 17. Qxd2 Qxh4 18. e4 Rh6 19. g3 Qd8 20. Rae1 Be6 21. Qd1
Qd7 22. Rf2 f5 23. e5 g5 24. Qb1 {Unzicker,W-Keller,D/Zurich 20/631/1975/1-0 
(38)}) 13... Bg4 14. f3 Bh5 15. Re1 Rad8 (15... Qa5 $5 16. Bb2 Rad8) 16. Nf1
Bg6 17. Ng3 (17. g4 Bxc2 18. Qxc2 h5 $132) 17... Qa5 18. Bd2 a6 19. e4 (19.
Bxg6 hxg6 20. e4 Re6 $13) 19... dxe4 20. fxe4 Nh5 21. Nf1 (21. Nxh5 Bxh5 22.
Qc1 Bg6 $13) 21... Nf6 22. Ng3 Nh5 23. Nf1 Nf6 24. Ng3 1/2-1/2

[Event "Buenos Aires Najdorf"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "3"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Illescas Cordoba, Miguel"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2605"]
[BlackElo "2615"]
[Annotator "Ftacnik,L"]
[PlyCount "61"]
[EventDate "1993.04.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ARG"]
[EventCategory "13"]
[SourceTitle "CBM 035"]
[Source "ChessBase"]
[SourceDate "1993.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 (13... Ne4 $5)
14. Qe1 $1 Bh5 (14... Bxf3 15. gxf3 Qd7 16. Kh1 $1 Qh3 17. Bd1 $1 $14) 15. Nh4
$1 Ng4 16. g3 Bg6 17. Bd1 Qd7 18. Nxg6 hxg6 19. Ra2 f5 $6 (19... Na5 20. Re2
Nb3 21. f3 Nf6 22. e4 Qxa4 $13) 20. Re2 Nf6 21. f3 Re6 $2 (21... Nd8 22. Bc2
Nf7 23. h3 $5 {/\ g4}) 22. Bc2 Rae8 23. g4 $3 fxg4 24. Bxg6 gxf3 25. Rxf3 $1
Ne4 26. Bxe8 Rxe8 27. Rg2 Nd8 28. Qh4 Ne6 29. Qh5 b6 30. Rg4 Nd8 31. Rh4 1-0

[Event "RUS-ch 57th"]
[Site "Moscow"]
[Date "2004.11.26"]
[Round "10"]
[White "Korotylev, Alexey"]
[Black "Grischuk, Alexander"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2596"]
[BlackElo "2704"]
[Annotator "Ftacnik,L"]
[PlyCount "73"]
[EventDate "2004.11.15"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "18"]
[SourceTitle "CBM 104"]
[Source "ChessBase"]
[SourceDate "2005.01.27"]
[SourceVersion "1"]
[SourceVersionDate "2005.01.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Qa5 14. Qc1 Ne4
15. Bxe4 Rxe4 16. Nd2 Re8 {The concept of attack was developed in the past by
Botvinnik and Black must play very carefully.} 17. e4 Be6 (17... dxe4 18. Nxc4
Qc7 19. Nd6 Rd8 20. Qf4 $14) 18. e5 (18. Re1 dxe4 19. Nxe4 Bd5 20. f3 Bxe4 21.
fxe4 Qxa4 22. Bc5 Qb5 23. Rb1 {1/2-1/2 Niklasch,O-Filippov,V/Izmir 2004/ (32)})
18... Qxa4 19. f4 $5 {Korotylev refuses to accept the quick draw after the
repetitive attack of the queen.} (19. Bd6 Qb5 20. Rb1 Qa6 21. Ra1 $11) 19...
Bf5 20. Rf2 f6 (20... Qc2 $6 21. Qxc2 Bxc2 22. Nxc4 dxc4 23. Rxc2 $14) (20...
Qb5 21. Bd6 Ne7 22. Nf1 $13) 21. Qb2 Nd8 (21... Qa5 $5 22. exf6 gxf6 23. Be7 (
23. Qxb7 Qxc3 24. Bb2 Qb4 25. Qxc6 Qxb2 26. Qxd5+ Be6 27. Qa5 Qxd4 $17) 23...
Qb6 24. Qxb6 axb6 25. Rxa8 Rxa8 26. Bxf6 Ra3 $1 $17) 22. Nf1 $6 {In this
moment the insistence on attack borders on stubborness. Objectively the best
was to equalise chances with 22.Bc5!} (22. Bc5 $1 Qc6 23. Rxa7 Rxa7 24. Bxa7
$11) 22... Qd7 23. Ne3 Bd3 (23... a6 24. Qe2 Nc6 25. exf6 gxf6 26. Qf3 Be4 27.
Qg3+ Qg7 28. Ng4 Kh8 29. Qh4 f5 30. Ne5 Re6 $15) 24. h3 b6 25. Qd2 Kh8 $2 {
Grischuk could hardly have guessed, what kind of heat will get to his monarch.}
(25... fxe5 26. fxe5 Ne6 $17) 26. f5 $1 fxe5 (26... Qc6 27. e6 Nb7 28. Qd1 $13)
27. dxe5 Rxe5 28. f6 Ne6 (28... gxf6 29. Ng4 Rf5 30. Rxf5 Qxf5 31. Be7 Nf7 32.
Bxf6+ Kg8 33. Bd4 $132) (28... Nf7 29. fxg7+ Kxg7 30. Ng4 Rf5 31. Re1 Re8 32.
Rxe8 Rxf2 33. Bf8+ $1 $18) 29. Be7 $1 (29. Ng4 Re4 30. Be7 a5 31. fxg7+ Nxg7
32. Bf6 $13) 29... h5 $2 {[%mdl 128] The ambition to prevent the jump of the
knight to g4 is laudable, but this move fails tactically. Black is suddenly
confronted with the unsurmountable problems.} (29... g6 30. Ng4 Re4 31. Re1 Qe8
32. Ne5 $40) (29... a5 30. Ng4 Re4 31. fxg7+ Nxg7 32. Bf6 $40) 30. fxg7+ Nxg7 (
30... Kg8 31. Bf6 Re4 32. Nf5 $18) 31. Bf6 Re6 32. Nxd5 $1 {The final of the
game is played by the brave attacker with great phantasy.} Kg8 (32... Qxd5 33.
Qh6+ $18) 33. Qg5 Rf8 (33... Be4 34. Ne7+ Rxe7 35. Bxe7 Qd5 36. Qf4 $18) 34.
Bxg7 Qxg7 (34... Rxf2 35. Bf6+ $18) (34... Rg6 35. Rxf8+ Kxg7 36. Qf4 $18) 35.
Rxf8+ Kxf8 36. Qd8+ Re8 (36... Kf7 37. Rxa7+ $18) 37. Qd6+ (37. Qd6+ Kg8 38.
Nf6+ $18) 1-0

[Event "Interzonal-14c"]
[Site "Zagreb"]
[Date "1987.??.??"]
[Round "12"]
[White "Baragar, Fletcher"]
[Black "Ehlvest, Jaan"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2320"]
[BlackElo "2540"]
[Annotator "Ftacnik,L"]
[PlyCount "91"]
[EventDate "1987.08.01"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "YUG"]
[EventCategory "12"]
[SourceTitle "CBM 004"]
[Source "ChessBase"]
[SourceDate "1988.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. Nh4 Ne7 12. g3 Re8 $5 (12... c4) (12... Bh3)
13. f3 Ng6 14. Nf5 (14. Ng2) 14... Bxf5 15. Bxf5 Ne7 16. Bb1 Nc8 17. Ra2 Nd6
18. Re2 Rac8 19. a4 (19. Rfe1 cxd4 20. cxd4 Nb5) 19... Qa5 20. Rfe1 Nc4 (20...
Qxc3 21. Bb2 Qc4 $13) 21. Qd3 Nb6 22. e4 c4 $6 (22... cxd4 $2 23. e5 $1 Qxc3 (
23... Rxc3 24. exf6 $18) 24. exf6 Qxe1+ 25. Rxe1 Rxe1+ 26. Kf2 $18) (22... g6
23. Bd2 $14 {/\} Nc4 (23... Qxa4 24. Bg5) 24. Bg5) 23. Qc2 dxe4 24. fxe4 Qxa4
25. Qd2 Re6 $6 (25... Re7 $142 $1) 26. Qf4 $16 {/\ g4-g5} (26. e5 Nfd5 27. Bf5
Qb3 $44) 26... Qb5 27. Bc2 Qh5 28. Qf1 Qa5 29. Qf3 Rce8 (29... Qh5 30. Qg2 $16)
(29... Na4 30. e5 Qxc3 (30... Nxc3 31. Rf2 Rf8 32. Bd2 Nfd5 33. Be4 $18) 31.
Qxb7 Nb6 32. exf6 Qxe1+ 33. Rxe1 Rxe1+ 34. Kf2 Rxc1 (34... Rce8 35. Bxh7+ $1
Kxh7 36. Qxf7 $18) 35. Bxh7+ $18) 30. g4 R6e7 31. g5 Nfd7 32. h4 Nf8 33. Rf1
Na4 34. Bd2 b5 35. Ref2 (35. Rg2) 35... Nb2 36. h5 Qb6 37. e5 a5 38. Kh2 b4 $2
(38... Nd3 39. Bxd3 cxd3 40. Qxd3 $16) 39. Be4 $18 Nd3 40. Rg2 b3 (40... g6 41.
hxg6 hxg6 (41... fxg6 42. Bd5+ Ne6 (42... Kg7 43. Qf6+ $18) (42... Kh8 43.
Qxf8+ Rxf8 44. Rxf8+ Kg7 45. Rg8#) 43. Bxc4 $18) (41... Nxg6 42. Bd5 Qc7 43.
Kh1 {/\ Rh2, Qh5+-}) 42. Bd5 Qc7 43. Kh1 {/\ Rh2+-}) 41. g6 $1 hxg6 (41... fxg6
42. hxg6 Ne6 (42... h6 43. Qf7+ $18) (42... Nxg6 43. Rxg6 $18) 43. gxh7+ Kh8
44. Bh6 {/\ Bg7} gxh6 45. Qf8+ $18) 42. hxg6 Nxg6 (42... fxg6 43. Bd5+ Ne6 44.
Rxg6 Qc7 45. Bh6 $18) 43. Rxg6 fxg6 44. Bd5+ Re6 45. Qf7+ Kh7 46. Kg2 (46. Kg2
g5 47. Be4+ $18) 1-0

[Event "Minneapolis HB Global op"]
[Site "Minneapolis"]
[Date "2005.05.19"]
[Round "2"]
[White "Adler, Viktor"]
[Black "Milov, Vadim"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2407"]
[BlackElo "2653"]
[Annotator "Gavrikov,V"]
[PlyCount "82"]
[EventDate "2005.05.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 107"]
[Source "ChessBase"]
[SourceDate "2005.08.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. h3 {Inviting Black transpose to the old line 10...dxc4 11.
Bxc4 e5 when this pawn move can be useful, preventing possible Bg4.} ({Mostly
White takes on d5 but the position after} 10. cxd5 exd5 {is sufficiently well
investigated and as practice shows Black has adequate counterplay.}) 10... Ne7
$5 $146 {An interesting novelty.} ({Apart from} 10... dxc4) ({Black has:} 10...
b6 11. cxd5 exd5 12. a4 (12. dxc5 $5 bxc5 13. c4 dxc4 14. Bxc4 Na5 15. Ba2 Ba6
16. Re1 {1-0 Ibragimov,I-Roeder,M/Bern 1993/TD (31)}) 12... Re8 13. Nd2 Na5 14.
Bb2 c4 15. Bc2 Ne4 16. Nxe4 dxe4 17. f3 Bf5 18. Qe1 Bg6 19. f4 f5 20. g4 $13 {
1-0 Iskusnyh,S-Balashov,Y/Moscow 1996/EXT 98 (37)}) (10... Re8 11. Bb2 Na5 12.
cxd5 exd5 13. Nd2 c4 (13... Ne4 $5) 14. Bc2 Bd7 15. Re1 Ne4 16. Nf1 f5 17. a4
a6 18. Re2 b5 19. axb5 axb5 20. Qe1 Nb7 21. f3 Rxa1 22. Qxa1 Ned6 $11 {1-0
Ravi,L-Ooi Chern Ee/Kuala Lumpur 1996/EXT 98 (44)}) (10... Rd8 11. Qc2 (11. Qe2
Na5 12. cxd5 exd5 13. Ne5 Be6 14. f4 $2 Rac8 15. Rb1 Bd7 16. Bd2 Ba4 17. Be1
Rd6 $15 {0-1 Ibragimov,I-Luther,T/Athens 1993/TD (34)}) 11... Na5 12. Ne5 (12.
cxd5 exd5 (12... c4 $143 13. d6 $1 Qxd6 14. Be2) 13. dxc5 Qxc5) 12... dxc4 13.
Nxc4 Nxc4 14. Bxc4 b6 15. Bd3 (15. Qe2 $142 Bb7 16. Bb2) 15... Bb7 16. Bb2 e5
$1 $132 {0-1 Schoen,W-Petursson,M/Reykjavik 1988/TD (77)}) 11. Ne5 ({After} 11.
cxd5 exd5 {followed by Bf5 Black has very comfortable play.}) 11... dxc4 12.
Nxc4 {There is nothing for the knight to do on c4.} ({Better was} 12. Bxc4 Ng6
13. Nxg6 ({worse is} 13. f4 b6 $1 (13... cxd4 $6 14. cxd4 Nxe5 15. fxe5) 14.
Bd3 Bb7 15. Qe2 Ne4 16. Qc2 Nxe5 17. dxe5 ({or} 17. fxe5 $6 f5 18. exf6 Nxf6)
17... Qc6 18. c4 Rad8 19. Bb2 Rd7 20. Rad1 Rfd8 {intending to meet} 21. Kh2 {
with} Nd2 $1 22. Rxd2 Rxd3 $15) 13... hxg6 14. Qe2 e5 15. Bb2 {with chances
for both sides.}) 12... Ng6 13. Rb1 {White prevents b7-b5.} ({In the event of} 
13. a4 b6 14. e4 $6 cxd4 15. cxd4 {Black drives away white knight to the
awkward position by} Ba6 16. Nb2 (16. Ne3 $2 Bxd3 17. Qxd3 Nf4) 16... Bxd3 17.
Qxd3 Rac8 $15) 13... b6 14. Qe2 Bb7 15. Bd2 Be4 16. Rfc1 (16. f3 Bxd3 17. Qxd3
Rac8 18. Rfc1 Rfd8 19. e4 Qg3 $36 {[%cal Gf6h5,Gh5f4,Rg6h4]}) 16... Rfd8 (16...
Bxd3 $5 17. Qxd3 Rfd8) 17. Bxe4 Nxe4 18. Be1 Rac8 19. f3 Nf6 20. Qb2 $6 ({
White proceeds ineffectively instead of the immediate} 20. Bf2) 20... Nd5 $1
21. Bf2 Qe7 22. Nd2 ({If White tries to prevent e6-e5 by} 22. Bg3 {, then
Black has an unpleasant continuation} Qg5 23. Qf2 cxd4 24. cxd4 Rc6 $1) 22...
e5 $1 23. dxc5 (23. c4 $2 {loses material on account of} exd4 $1) 23... bxc5 ({
Deserved serious attention} 23... Rxc5 $5 {because bad is} 24. e4 $2 (24. c4
Nf6 $15) 24... Ndf4 25. Bxc5 Qxc5+ 26. Kh2 Nd3 $17) 24. c4 Nb6 25. Qc2 Qe6 $6 {
The waste of time.} (25... Nf8 $142) 26. Rb5 Nf8 27. e4 $6 {Allows Black to
occupy the d4-square.} ({Correct was} 27. Ne4 Qe7 28. a4 {planning to
penetrate on b7 after a4-a5.}) 27... Qe7 28. a4 Ne6 $1 (28... Nxa4 29. Qxa4
Rxd2 30. Qa5 Rcd8 (30... Qg5 31. h4 Qf4 32. g3 Qh6 33. Rxc5 Rxc5 34. Bxc5) 31.
Rxc5 Qg5 32. Rxe5 Rd1+ 33. Rxd1 Rxd1+ 34. Kh2 Qf4+ 35. Bg3 Qc1 36. Bf2 Qf4+ (
36... Ne6 37. Rf5 g6 38. Rf6) 37. Bg3 Qc1 {leads to a draw by repetition.}) 29.
a5 Nd7 30. Rb7 Qg5 (30... a6 $5 31. Rcb1 Nd4 $15) 31. h4 Qh6 $6 ({It was
stronger to keep the opposition with white king by} 31... Qg6 $5 32. Nf1 Nd4
33. Bxd4 exd4 34. Rxa7 Ne5 $36) 32. Nb3 (32. Rxa7 Nd4 33. Bxd4 exd4 $44) 32...
Nd4 33. Bxd4 $2 {[%csl Rh4] An obvious mistake.} ({After} 33. Nxd4 exd4 34.
Rxa7 Ne5 35. Rb7 {White´s prospects are at least no worse.}) 33... exd4 34. Qd2
Qxh4 (34... Qa6 35. Rb5 Qc6 36. a6 (36. Na1 $2 Ne5) 36... Qxa6 $17) 35. Rxa7
Ne5 $1 36. Ra6 {Black threatened 36...Nxf3+ 37.gxf3 Rd6.} Qg3 37. Kf1 $2 (37.
Qe2 {would have retained some saving chances.}) 37... Nxf3 38. Qf2 Nh2+ 39. Kg1
Qxb3 40. Ra7 (40. Kxh2 d3 41. Qd2 Qb7 42. Rb6 Qxe4 $19) 40... Rf8 41. Qf4 Ng4
0-1

[Event "Moscow Aeroflot op-A"]
[Site "Moscow"]
[Date "2005.02.15"]
[Round "1"]
[White "Kaidanov, Gregory S"]
[Black "David, Alberto"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2629"]
[BlackElo "2573"]
[Annotator "Gavrikov,V"]
[PlyCount "126"]
[EventDate "2005.02.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 106"]
[Source "ChessBase"]
[SourceDate "2005.06.06"]
[SourceVersion "1"]
[SourceVersionDate "2005.06.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 {This flexible reply reserves the options of playing Na5 and
dxc4 followed by e5.} 10. cxd5 exd5 11. a4 Re8 12. Nd2 ({White wants to
prevent the manoeuvre Nf6-e4, which is Black´s usual continuation after the
more common} 12. Ba3 c4 13. Bc2 {-} Ne4) 12... Na5 (12... Bg4 13. f3 Bh5 {
is the safest reaction to White´s rare move,e.g.} 14. Re1 cxd4 15. cxd4 Bg6 ({
or} 15... Nb4 16. Nf1 (16. Bb1 Bg6) 16... Nxd3 17. Qxd3 Rac8 18. Bd2 Bg6 19.
Qa3 Re6 $11 {1/2-1/2 Graf,A-Balogh,C/Budapest 2004/CBM 104 no vc (25)}) 16.
Bxg6 hxg6 17. Nf1 (17. Bb2 $142) 17... Rac8 (17... Na5 $5) 18. Bd2 Na5 19. Bxa5
Qxa5 20. Qb3 Re7 $132 {1/2-1/2 Kazakov,P-Bocharov,D/Novosibirsk 2001/CBM 085
ext (94)}) 13. Ba3 c4 14. Bc2 Bg4 15. f3 Bh5 16. Re1 b6 $6 {There was no real
need for this.} (16... Rad8 {is better.}) 17. Re2 $6 ({Instead,} 17. e4 dxe4
18. Nxe4 Nxe4 19. Bxe4 Rad8 20. Ra2 {looked fine for White.}) 17... Rac8 $5 {
The position of the rook on the c-file can be useful later, because Black is
planning Bg6 and will be possible to meet the advance e3-e4 with Nb3.} 18. Qe1
({Now} 18. e4 {is less strong on account of} dxe4 19. Nxe4 Nxe4 20. Bxe4 Nb3
21. Raa2 Bg6) 18... Bg6 19. Bxg6 ({Once again White gives} 19. e4 {up because
of} Nb3 $1 20. Bxb3 cxb3 21. Bb2 dxe4 22. fxe4 Qc6 23. e5 (23. d5 $2 Qc5+ 24.
Kh1 Bh5) 23... Nd5 24. Rf2 (24. Nxb3 Nxc3 25. Bxc3 Qxc3 $15) 24... f6 $1 25.
Nxb3 (25. c4 $2 Nb4) 25... Qc7) 19... hxg6 20. Nf1 Nb3 21. Raa2 Qc6 22. Ng3 $6
{Otherwise Black can prevent e3-e4 by Re6 and Rce8.} ({However a better
version of the pawn sacrifice was} 22. a5 $5 Nxa5 $140 23. Bb4) 22... Qxa4 23.
Bd6 ({Or} 23. Be7 Qd7 24. Bxf6 gxf6 25. e4 a5 $17) 23... Qd7 ({Serious
attention deserves} 23... Qc6 $5 24. Be5 Nd7 25. Bf4 a5 26. e4 b5 $17) 24. Be5
Nh5 $6 (24... a5 {looks much more logical and it is hard for White to obtain
some compensation for the pawn.}) 25. Nxh5 gxh5 26. e4 (26. Qg3 $2 {loses an
exchange after} f6 27. Bxf6 Nc1) 26... f6 27. Bg3 dxe4 ({In case of} 27... a5
28. exd5 Rxe2 29. Rxe2 Qxd5 {White forces the draw by} 30. Re8+ Rxe8 31. Qxe8+
Kh7 32. Be5 $1 Kh6 33. g4 hxg4 34. fxg4 Kh7 35. Qh5+) 28. fxe4 a5 29. e5 fxe5
30. Bxe5 Re6 $6 ({This was a moment for Black to secure some advantage with
the accurate} 30... Re7 31. Re3 Rf8 {but it is clear that White´s position is
better than a few moves ago.}) 31. Bxg7 $1 Rxe2 32. Rxe2 Qxg7 33. Re7 $2 {
A sad mistake.} ({After the correct} 33. Re8+ Rxe8 34. Qxe8+ {Black´s king
cannot escape the perpetual check,e.g.} Qf8 35. Qg6+ Kh8 36. Qxh5+ Kg7 37. Qg5+
Kf7 38. Qf4+ $1 Ke8 (38... Kg8 39. Qg4+ Qg7 40. Qc8+ Kh7 41. Qh3+ Qh6 42. Qd7+)
39. Qb8+ Ke7 40. Qc7+ Kf6 41. Qf4+) 33... Qg6 34. Re6 Qg5 35. Re8+ Rxe8 36.
Qxe8+ Kg7 37. Qd7+ Kh6 38. Qd6+ Qg6 39. Qf8+ (39. Qf4+ Kh7 40. Qc7+ Kh8 41.
Qd8+ (41. Qxc4 Qe8 $1) 41... Kg7 {leads to the game position.}) 39... Kh7 40.
Qe7+ Kh6 41. Qf8+ Kh7 42. Qe7+ Kg8 43. Qd8+ Kg7 44. Qe7+ Qf7 45. Qe5+ Kh7 46.
h4 (46. Qe4+ Kg8 47. Qa8+ Kg7 $19) 46... Nc1 47. Qe4+ Kg8 48. Qe5 Nd3 49. Qb8+
Kg7 50. Qxb6 Qf2+ 51. Kh2 Qxh4+ 52. Kg1 Qe1+ 53. Kh2 Qh4+ 54. Kg1 Qf2+ 55. Kh2
Qf4+ 56. Kg1 h4 57. Qa7+ Qf7 58. Qxa5 Qf2+ 59. Kh1 Qe1+ 60. Kh2 Qg3+ 61. Kh1 h3
62. Qa7+ Kh6 63. Qb6+ Kh5 0-1

[Event "Reykjavik"]
[Site "Reykjavik"]
[Date "1992.??.??"]
[Round "3"]
[White "Thorsteins, Karl"]
[Black "Hjartarson, Johann"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2485"]
[BlackElo "2580"]
[Annotator "Hjartarson,J"]
[PlyCount "121"]
[EventDate "1992.03.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ISL"]
[EventCategory "11"]
[SourceTitle "CBM 028"]
[Source "ChessBase"]
[SourceDate "1992.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 (10. Qc2 Na5 $1 11. cxd5 $6 (11. Ne5 $5 dxc4 12. Nxc4
Nxc4 13. Bxc4 cxd4 14. cxd4 Bd7 15. Qe2 Rac8 16. Bd3 Ba4 $10) 11... c4 $1 12.
Be2 exd5 13. Ne5 (13. Nd2 Bg4 14. Bxg4 Nxg4 15. g3 f5 $15 {Geller,E-Petrosian,
T/Amsterdam ct/1956/ -> Kandidatenturniere 1948-1962}) 13... Ne4 14. Ra2 f6 15.
Nf3 Nd6 $17 {/\ ...Bf5 Lerner,K-Hjartarson,J/Moscow/1987/}) 10... exd5 11. Nh4
(11. a4 Re8 12. Ba3 c4 13. Bc2 Ne4 $10 14. Qe1 Qd8) 11... Ne7 (11... Re8 12. f3
Bd7 (12... Na5 13. Ra2 cxd4 14. cxd4 Nc4 15. Re2 b5 16. e4 dxe4 17. fxe4 Bg4
18. Nf3 Qb6 19. Kh1 Rac8 20. Ree1 $14 {Donner,J-Troianescu/Habana/1971/ 11/518}
) (12... b6 13. Ra2 a5 $2 {>= 13...Bb7} 14. Re2 Bb7 (14... Ba6 15. Bxa6 Rxa6
16. e4 $16) 15. Bb2 Rad8 16. Qe1 $1 g6 17. g4 Qc8 18. Qf2 {/\ 19.e4} Re7 19. h3
Ba6 20. Bxa6 Qxa6 21. e4 dxe4 22. fxe4 Qc4 $2 23. Qxf6 Qxe2 24. Bc1 $1 Qxf1+
25. Qxf1 Rxe4 26. Bh6 {Portisch,L-Hort,V/Niksic/1978/1-0/28/}) 13. Ra2 Qa5 (
13... Ne7 14. g3 Ng6 15. Ng2 Re7 16. g4 $16) 14. Bd2 Qb6 15. Qb1 Na5 16. Rb2
Qd6 17. Bc1 Rac8 18. Nf5 Bxf5 19. Bxf5 $14 {Donner,J-Kortschnoj,V/Amsterdam/
1972/1/2-1/2/31/ 13/633} Rc7 20. Bd3) 12. g3 (12. a4 Re8 13. Ba3 c4 14. Bc2 Ng6
15. Nf5 Ne4 $10) 12... Bh3 13. Re1 (13. Ng2 Bf5 14. f3 Bxd3 15. Qxd3 Rac8 16.
Bd2 Rfe8 17. Ra2 Nc6 18. Be1 Qb6 $15 {Gligoric,S-Larsen,B/Milano/1975/}) 13...
Ng6 (13... c4 14. Bc2 (14. Bf1 $6 Bxf1 15. Rxf1 Ne4 16. Bb2 f5 $15 17. f3 Nf6
18. Qc2 Qd7 19. a4 g5 $1 20. Ng2 Ng6 21. Ba3 Rf7 22. Rf2 Kg7 23. Raf1 Re8 24.
a5 h5 25. Bc5 h4 $1 $15 {Hjartarson,J-Byrne,R/reykjavik/1982/0-1/55/ 33/697})
14... Ne4 15. Bb2 f5 16. Ng2 g5 17. f3 Nf6 18. a4 Bxg2 19. Kxg2 $14 {Balashov,
Y-Gulko,B/URS/1975/}) 14. Ng2 Qd7 15. f3 cxd4 (15... Bf5 $2 16. Bf1 cxd4 17. g4
$1 Be6 18. cxd4 Rac8 19. Bd3 $14) 16. cxd4 Bf5 17. Bb2 {TN} (17. Bf1 Rac8 18.
g4 (18. Ra2 Rc7 $1 19. g4 Rfc8 20. Bd2 Bc2 21. Qa1 Bb3 22. Rb2 Bc4 $17 {
Lin Weinguo-Ivanchuk,V/WchJ Adelaide/1988/0-1/}) 18... Bc2 19. Qd2 Rc7 20. Bb2
Rfc8 $15) 17... Bxd3 18. Qxd3 Rac8 19. Rac1 Rxc1 20. Rxc1 Rc8 $10 21. Rxc8+
Qxc8 22. Qc3 (22. Ne1 h5 $15) 22... Qf5 23. Ne1 h5 24. Qc7 Qe6 $1 25. Kf2 Qa6
26. h4 Nf8 27. Qc2 N6d7 {/\ Nb6-c4} 28. Nd3 Qg6 $1 29. Ne1 Qe6 30. Nd3 Qh3 31.
Nf4 Qh2+ 32. Ng2 Nb6 33. Qc7 Nc4 34. Qxb7 $2 (34. Bc1 $1 Qh1 (34... g5 $6 35.
Qd8 $1 (35. hxg5 $4 h4 $19) 35... gxh4 36. Qxh4 $14) 35. Ne1 Qh2+ 36. Ng2 Qh1
$10) 34... Nxe3 35. Kxe3 Qg1+ $1 36. Kd3 Qxg2 37. Ke3 Qg1+ 38. Ke2 Qxg3 $17 39.
Bc3 Qg2+ $6 (39... Ne6 40. Qxa7 Qxh4 $17) 40. Ke3 Qg1+ 41. Ke2 Ng6 $2 (41...
Ne6 42. Qb8+ Kh7 43. Qe5 g6 44. Qf6 Kg8 $17) 42. Qc8+ Kh7 43. Qf5 Qh2+ 44. Kd1
$1 Qxh4 45. Qxd5 f6 46. Qf5 (46. Bd2 $5 Qh3 $15 {/\f5,h4}) 46... Qg5 $8 47.
Qxg5 fxg5 48. d5 h4 49. d6 Nf8 50. Ke2 Kg6 51. Kf2 Nd7 52. Kg2 Nf6 53. Bd2 Kf5
54. Kh3 a6 55. Be3 g6 56. Bd2 Nd7 57. Bc3 Ke6 58. Bd2 Ne5 59. Bxg5 Nxf3 60. Be3
$4 (60. Be7 g5 61. Kg4 Ne5+ 62. Kh3 Kf5 (62... Nf7 63. Kg4 Kd7 64. Kh3 a5 65.
a4 $10) 63. a4 Kf4 64. Bd8 $10) 60... g5 61. Bc5 {61...Ne5 62.Kg4 Ne5 63.Kh3
Nf7-+} 0-1

[Event "Altensteig-A"]
[Site "Altensteig"]
[Date "1993.??.??"]
[Round "2"]
[White "Jussupow, Artur"]
[Black "Almasi, Zoltan"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2630"]
[BlackElo "2580"]
[Annotator "Jussupow,A"]
[PlyCount "78"]
[EventDate "1993.07.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "12"]
[SourceTitle "CBM 037"]
[Source "ChessBase"]
[SourceDate "1993.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.12.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2
(8. cxd5 exd5 9. Be2 {-E51/3}) 8... Nc6 (8... dxc4) (8... b6) 9. Bd3 (9. Rc1 {
-E51/2}) 9... Qc7 (9... dxc4 10. Bxc4 Qc7 11. Be2 $14) 10. cxd5 exd5 11. O-O c4
(11... Bg4 12. Qe1 {-ECO E58/4/23} Bxf3 13. gxf3 Qd7 14. Kh1 Qh3 15. Qd1 cxd4
16. cxd4 Qh4 17. Qe2 $14 {Karpman - Magerramov, Podolsk 1989}) 12. Bc2 Bg4 (
12... Re8 13. Nh4 Ng4 14. g3 Ne7 15. Bc1 Ng6 16. Ng2 f5 $10 {ECO Bronstein -
Szabo, Amsterdam ct 1956}) 13. Qe1 Bh5 {/\Bg6} (13... Bxf3 14. gxf3 Qd7 15. Kh1
(15. Kg2 $14) 15... Qh3 16. Qe2 (16. Qd1 $5) 16... Rae8 17. Rg1 Nh5 $13) 14.
Nh4 $1 Ng4 15. g3 Bg6 $6 (15... Rfe8 $142 $14) 16. Nxg6 hxg6 17. f3 $16 Nf6 18.
Qf2 {/\Rae1, e4} (18. e4 dxe4 19. fxe4 Rfe8 $132) 18... Rfe8 19. Rae1 Re7 20.
g4 $5 (20. e4 $142 $1 dxe4 21. fxe4 Rae8 22. Qg2 Qb6 {/\Ne5} 23. Ba1 $1 $16)
20... Rae8 21. Bc1 {/\g5, e4} b5 22. Bd2 (22. g5 $142 Nh5 23. e4 Nf4 24. Qg3
Nd3 25. Qxc7 Rxc7 26. Bxd3 cxd3 27. exd5 Rxe1 28. Rxe1 Na5 $16) 22... a5 23. g5
Nh5 24. e4 b4 $1 (24... Nf4 $2 25. Qg3 Nd3 26. Qxc7 Rxc7 27. Bxd3 cxd3 28. exd5
$18) 25. axb4 axb4 26. cxb4 Qb6 $132 27. Ba4 $5 Ra8 28. Bxc6 Qxc6 29. exd5 Qd7
30. Rxe7 Qxe7 31. Qe3 Qd7 $1 $44 32. Re1 Kh7 33. Qc3 Qh3 {/\Ra2,Nf4} 34. Re2 $1
Ra2 35. Rf2 Qh4 $1 {/\Nf4} 36. Qxc4 $4 (36. Qe3 Ra1+ 37. Rf1 Rxf1+ 38. Kxf1
Qxh2 $44) (36. Rg2 Qh3 37. Rf2 $10) 36... Rxd2 37. Rxd2 Qe1+ $19 38. Qf1 Qxd2
39. Qf2 Qxg5+ 0-1

[Event "Munich SKA"]
[Site "Munich"]
[Date "1993.??.??"]
[Round "7"]
[White "Jussupow, Artur"]
[Black "Hjartarson, Johann"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2645"]
[BlackElo "2625"]
[Annotator "Jussupow,A"]
[PlyCount "55"]
[EventDate "1993.05.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "16"]
[SourceTitle "CBM 036"]
[Source "ChessBase"]
[SourceDate "1993.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 (11... b6 12. Ba3 Na5 13. Ne5 Re8 (
13... Bb7 14. Rc1 Rfe8 15. f3 Nc6 16. f4 Na5 {Pomar-Keller/Adelboden/1969}) 14.
f3 Bb7 15. Ra2 Rad8 $10 {Borisenko-Vasilchuk/USSR/1956}) (11... c4 12. Bc2 Bg4
13. Qe1 Bxf3 14. gxf3 Qd7 15. Qe2 (15. Kg2 $5) 15... Rfe8 16. Kh1 Qh3 17. Rg1
Nh5 $13 {Azmaiparashvili-Vaganian/Manila ol/1992}) 12. Ba3 c4 13. Bc2 Bg4 (
13... Ne4 14. Qe1 Qd8 $1 {><h4} (14... Re6 $2 15. Nh4 Qd8 16. f3 Nd2 (16...
Nxc3 $2 17. Nf5 g6 18. Ng3 Qa5 19. Bb2 $18 {ECO}) 17. Qxd2 Qxh4 18. e4 Rh6 19.
g3 $16 {Unzicker-Keller/Zürich/1975}) (14... f5 $5 {Unzicker}) 15. Bxe4 Rxe4
16. Nd2 Re8 17. f3 Qa5 18. Bb2 b5 19. axb5 Qxb5 $10 {Bannik-Averbah/USSR ch/
1958}) 14. Qe1 Bh5 (14... Bxf3 15. gxf3 Qd7 16. Kg2 $14 {Garcia,G-Troianescu/
Leipzig ol/1960}) 15. Nh4 Re6 $6 (15... Ng4 16. g3 $14 {Geller-Matanovic/Bled
1961/}) 16. f3 $1 Rae8 17. e4 $1 dxe4 18. fxe4 Ng4 $1 (18... Nxe4 $2 19. d5
Qb6+ 20. Kh1 Rf6 21. Bxe4 Rxf1+ 22. Qxf1 Rxe4 23. dxc6 Rxh4 24. Qe1 g5 25. Qe5
$18) (18... Rxe4 $6 19. Bxe4 Rxe4 20. Qg3 $18) 19. g3 (19. Nf3 Bg6 $1 20. d5
Nce5 21. dxe6 Nxf3+ 22. Rxf3 Qxh2+ 23. Kf1 Qh1+ 24. Ke2 Qxg2+ $44) (19. e5 $2
Ncxe5 20. dxe5 Rxe5 21. Qg3 Qb6+ 22. Kh1 Re2 $17 {/\Nf2}) 19... Nf6 20. Rb1 $5
(20. e5 Nxe5 21. dxe5 Rxe5 $44) 20... Nxe4 21. d5 Re5 22. dxc6 Ng5 (22... Qxc6
$2 23. Bxe4 Rxe4 24. Qf2 $18) 23. cxb7 $1 (23. Qd2 Qxc6 $1 24. Qg2 Qxg2+ $1 25.
Nxg2 (25. Kxg2 Re2+ 26. Rf2 Rxf2+ 27. Kxf2 Re2+ $17) 25... Nf3+ 26. Rxf3 (26.
Kh1 Nd2 $17) 26... Bxf3 27. Rf1 $17) 23... Re2 $2 (23... Rxe1 $142 24. Rfxe1
$44 Rb8 $8 25. Re7 (25. Nf5 $6 Nf3+ (25... Kh8 $13) 26. Kf2 Nxe1 27. Bd6 Qd7
28. Be4 Bf3 29. Bxf3 Nxf3 30. Bxb8 Qd2+ 31. Kxf3 Qd3+ $17) (25. Rb5 $6 Nf3+ 26.
Nxf3 Bxf3 27. Be4 (27. Re7 Qd8 $17) 27... Bxe4 28. Rxe4 h6 $15) (25. Bf5 Ne6
26. Be4 Nc5 27. Bd5 $36) 25... Qc6 26. Bf5 $36) (23... Nh3+ $2 24. Kg2 {><h3})
24. Bf5 $16 {/\Bc8} (24. Qxe2 $2 Bxe2 25. Rfe1 Qc6 {/\Nh3}) 24... g6 (24...
Nf3+ $142 25. Nxf3 Bxf3 26. Qxe2 Bxe2 27. Bc8 Bxf1 (27... Rxc8 28. Bd6 $18) 28.
b8=Q (28. Kxf1 Qe5 29. b8=Q Qe2+ $10) 28... Qxb8 29. Rxb8 Bh3 30. Bxh3 Rxb8 31.
Bb4 $16 {><c4}) 25. Qc1 $1 $18 h6 26. Qf4 Qc6 27. Qd6 (27. b8=Q gxf5 28. Qxf5
$18) 27... Nf3+ 28. Rxf3 {Yusupov} (28. Nxf3 $2 Bxf3) 1-0

[Event "Munich SKA"]
[Site "Munich"]
[Date "1994.05.23"]
[Round "3"]
[White "Jussupow, Artur"]
[Black "Lobron, Eric"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2655"]
[BlackElo "2570"]
[Annotator "Jussupow,A"]
[PlyCount "114"]
[EventDate "1994.05.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "16"]
[SourceTitle "CBM 042"]
[Source "ChessBase"]
[SourceDate "1994.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 14. Qe1 Bh5 (
14... Bxf3 15. gxf3 Qd7 $14) 15. Nh4 Ng4 (15... Re6 16. f3 $1 {/\e4 /
Yusupov-Hjartarson/Munich/1993/}) 16. g3 Bg6 17. Nxg6 (17. Bd1 {Kortschnoj,
V-Illescas Cordoba,M/Buenos Aires/1993/}) 17... hxg6 18. Qd2 $1 $146 (18. Qe2
Qd7 19. h3 Nf6 $10 {Geller-Matanovic/Bled/1961/}) 18... f5 $6 (18... Re6 19.
Rae1 Rae8 20. e4 $1 $16) (18... Na5 19. Rae1 Nb3 20. Qd1 $16) 19. Rae1 Nf6 20.
f3 $16 {/\g4} Qd7 (20... Re6 21. g4 fxg4 22. e4 $1 $40) 21. g4 $1 fxg4 22. Bxg6
Ne7 $5 (22... gxf3 23. Rxf3 Qg4+ 24. Rg3 Ne4 25. Rxg4 Nxd2 26. Re2 $18) 23.
Bxe8 Rxe8 24. Bxe7 Rxe7 25. Qg2 $16 Qe8 $5 (25... gxf3 26. Rxf3 Ne4 27. Ref1
$18) 26. fxg4 Re4 $5 (26... Rxe3 27. Rxe3 Qxe3+ 28. Kh1 $18 {/\g5}) 27. h3 Rxe3
28. Qf2 Re4 29. Rxe4 Nxe4 30. Qf3 b6 31. h4 a6 32. g5 {/\h5} (32. h5) (32. Qf5
Nxc3 33. g5 g6) 32... g6 33. Kg2 b5 34. axb5 axb5 35. Ra1 $5 Qb8 36. Ra6 (36.
Qg4 Kg7 (36... b4 37. h5 (37. cxb4 c3 38. b5) 37... bxc3 38. Rf1 Qe8) 37. h5
gxh5) 36... Kg7 37. h5 (37. Re6 $142 $5 Qa8 (37... Qa7 38. Rxe4 dxe4 39. Qxe4 (
39. Qf6+ Kh7 40. Qf8 $16) 39... b4 40. cxb4 c3 $16) (37... b4 38. h5 $1 bxc3
39. Rxe4 $1 (39. h6+ Kg8 (39... Kh8 40. Rxe4 $18) 40. Rxg6+ Kh8 41. h7 Qb2+ 42.
Kh3 Qf2) 39... dxe4 40. Qf6+ Kg8 41. Qxg6+ Kf8 42. Qf6+ Kg8 43. h6 Qb7 (43...
Qf8 44. h7+ $18) (43... Qb2+ 44. Kh3 $18) 44. g6 e3+ 45. Kh2 Qc7+ 46. Kh3 Qd7+
47. Kh4 $18) 38. Re7+ Kh8 39. Rxe4 (39. Qf7 $2 Qa2+ 40. Kh3 Nf2+ $10) 39...
dxe4 40. Qf6+ Kh7 41. Qf7+ (41. Qe7+ Kg8 42. Kf2 Qa2+ 43. Ke3 Qc2 44. Qe6+)
41... Kh8 42. Qxg6 (42. Kf2 b4 43. Qxc4 Qf8+) 42... e3+ 43. Kg3 $16) 37... gxh5
38. g6 Kh6 $5 (38... Qf8 $2 39. Ra7+ Kg8 40. Ra8 $1 $18) (38... Qc7 $5 39. Re6
{/\Re5} (39. Ra8) 39... b4 (39... Qa7 40. Qxh5 Qa2+ 41. Kh3 Nf2+ 42. Kh4 $18))
39. Re6 Ng5 (39... Qd8 $5 40. Re5 $140 Nf6) 40. Qe3 Qc8 $1 41. Rf6 $3 (41. g7+
Kh7) 41... Qg4+ 42. Kf2 (42. Kf1) 42... Qh4+ 43. Kf1 Qh1+ (43... Qh3+ 44. Qxh3
Nxh3 45. Rf5 $18) 44. Kf2 (44. Ke2 $2 Qe4 $132) 44... Qh4+ 45. Kg1 Qg4+ 46. Kf1
Qd1+ 47. Kf2 $1 Qc2+ 48. Kg1 $1 (48. Kg3 $2 Qxc3) 48... Qd1+ 49. Kh2 Qc2+ 50.
Rf2 Qxg6 (50... Qe4 51. Qxg5+ $3 Kxg5 52. g7 $18) 51. Qe5 $1 Nh7 (51... Ne4 52.
Rf8 Qg7 53. Rh8+ Kg6 54. Qxh5+ Kf6 55. Rh6+ $18) 52. Rf5 $22 $18 b4 (52... h4
$5 53. Qf4+ (53. Qe3+ Kg7 (53... Ng5 54. Qf4 $18 Kh5 55. Qf3+ Kh6 56. Qg4) 54.
Qe7+ Kg8 55. Rf3 $1 Qc2+ 56. Kh3 Qg6 57. Kxh4 (57. Qd8+ Kg7 58. Qc7+ Kh6 59.
Qf4+ Ng5+ (59... Kg7 60. Qe5+ Kh6 61. Kxh4 $18)) 57... Qh6+ 58. Kg4 Qg6+) 53...
Kg7 54. Rxd5 Qc2+ 55. Kh3 Qxc3+ 56. Kxh4 Qe1+ 57. Qg3+ Qxg3+ 58. Kxg3 $18 b4
59. Rc5 c3 60. Rc4 $18) 53. cxb4 c3 54. Qf4+ Kg7 55. Qe5+ Kh6 56. Qf4+ Kg7 57.
Rxd5 Nf6 (57... Nf6 58. Rg5) 1-0

[Event "Munich SKA"]
[Site "Munich"]
[Date "1992.??.??"]
[Round "11"]
[White "Jussupow, Artur"]
[Black "Lobron, Eric"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2655"]
[BlackElo "2575"]
[Annotator "Jussupow,A"]
[PlyCount "115"]
[EventDate "1992.05.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "14"]
[SourceTitle "CBM 030"]
[Source "ChessBase"]
[SourceDate "1992.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 b6 10. cxd5 exd5 11. Ne5 Bb7 $5 (11... Qc7 12. Nxc6 Qxc6 13. f3
$14) 12. Bb2 $5 (12. f4 $6 Ne4 $132) (12. Nxc6 Bxc6 13. f3 (13. dxc5 $5 bxc5
14. Qc2 {/\c4 Taimanov}) (13. a4 Qd7 14. Qc2 Ne4 $2 (14... Rfe8 $13) 15. f3 Nf6
16. Bf5 $16 {Najdorf-Sliwa, Leipzig (ol) 1960}) 13... Re8 (13... Qd7 $5 {/\Rac8
}) 14. Ra2 Qd7 15. Rb2 Rac8 16. Qe1 $14 {Taimanov}) 12... c4 (12... Re8 13.
Nxc6 Bxc6 14. c4 $14) (12... Nxe5 13. dxe5 Nd7 14. f4 c4 15. Bc2 Nc5 16. a4 $14
) 13. Nxc6 (13. Bc2 Nxe5 14. dxe5 Ne4 $13) 13... Bxc6 14. Bc2 Re8 15. a4 a5 (
15... Qd7) 16. Qe2 Qe7 (16... Ra7 $5 17. Rae1 $14) 17. Rfe1 (17. Rae1 b5 18.
axb5 Bxb5 19. Ra1 $13) 17... g6 18. f3 $14 (18. Ba3 Qd7 {><a4}) 18... Nh5 $5
19. e4 (19. g4 Nf4 20. Qf1 Nd3 21. Bxd3 cxd3 22. Qxd3 h5 $146) 19... dxe4 $5 (
19... f5 20. e5 $16 {><b6}) (19... Nf4 $2 20. Qd2 Qg5 $2 21. Bc1 Nh3+ 22. Kf1
$18) 20. fxe4 Nf6 $1 (20... Nf4 21. Qf1 $16) 21. e5 Qe6 22. Bc1 (22. Rf1 Nd5
$13) 22... Nd7 23. Bh6 (23. Bf4 f6 24. Qd2 fxe5 25. Bxe5 $14) 23... f6 24. Rad1
fxe5 25. Qd2 Qd5 (25... Bb7 26. d5 (26. Qg5 $44) 26... Qd6 27. Qg5 $44) 26. Be4
Qd6 27. dxe5 $1 (27. d5 $6 Bxa4 28. Ra1 Nc5) 27... Qxd2 28. Rxd2 Nxe5 (28...
Bxe4 29. Rxd7 Rxe5 30. Rg7+ Kh8 31. Rc7 $16) 29. Rde2 Kf7 $5 (29... Rec8 30.
Bxc6 Nxc6 31. Re4 $16) 30. Rf1+ Kg8 31. Bxc6 Nxc6 32. Ref2 Ne5 33. h3 Rab8 34.
Rf6 Rec8 35. Kh2 Re8 36. Kg1 Rec8 37. Kh1 Re8 38. Kh2 Rec8 39. Kg1 Re8 40. Kh2
Rec8 41. R6f4 Re8 42. h4 {/\Kh3,g4,h5} Rec8 43. Kh3 Re8 44. Rf6 (44. R4f2 $5)
44... Red8 45. g3 Re8 46. g4 b5 $1 47. axb5 a4 48. b6 a3 49. Ra1 Nd7 (49...
Rbd8 $6 50. b7 Rd3+ $140 51. Kg2 Nxg4 52. Rf8+ Rxf8 53. Bxf8 Rd2+ 54. Kg3 $18)
50. Rd6 Re7 $2 (50... Nxb6 51. Rxa3 Red8 $14) 51. Rxa3 Rxb6 52. Ra8+ Kf7 53.
Rxb6 $2 $10 (53. Rd4 $142 $16) 53... Nxb6 54. Rh8 Ke6 55. h5 gxh5 56. gxh5 Nd5
57. Rc8 Nxc3 58. Rxc4 1/2-1/2

[Event "Rostock-10 GM Group"]
[Site "Rostock"]
[Date "1984.08.18"]
[Round "8"]
[White "Knaak, Rainer"]
[Black "Tischbierek, Raj"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2490"]
[BlackElo "2450"]
[Annotator "Knaak,R"]
[PlyCount "66"]
[EventDate "1984.08.11"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DDR"]
[EventCategory "8"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. Nh4 Qa5 $5 (11... Ne7 12. g3 Bh3 13. Re1 c4)
12. Bd2 $5 (12. Bb2 $5 Re8 13. Qe1 $1 Qd8 14. Rd1) 12... c4 13. Bb1 (13. Bc2)
13... Ne4 14. Be1 Qd8 (14... f5 15. f3 Nd6 16. g3 (16. Bg3 Qd8 {g7--g5}) 16...
Bd7 $10) 15. g3 Bh3 16. Ng2 f5 17. f3 Bxg2 18. Kxg2 Nd6 19. Bd2 b5 20. Kh1 a5
21. Bc2 Kh8 22. Rg1 Qf6 23. Qf1 Rab8 24. Qh3 b4 25. axb4 axb4 26. Ra6 bxc3 27.
Bxc3 Nb4 28. Bxb4 Rxb4 29. g4 Rb2 30. Bxf5 g6 31. Ra7 Nf7 32. f4 gxf5 33. g5
Qe6 0-1

[Event "Dortmund SuperGM 39th"]
[Site "Dortmund"]
[Date "2011.07.23"]
[Round "3"]
[White "Nakamura, Hikaru"]
[Black "Ponomariov, Ruslan"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2770"]
[BlackElo "2764"]
[Annotator "Krasenkow,M"]
[PlyCount "82"]
[EventDate "2011.07.21"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "GER"]
[EventCategory "20"]
[SourceTitle "CBM 144"]
[Source "ChessBase"]
[SourceDate "2011.09.16"]
[SourceVersion "1"]
[SourceVersionDate "2011.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. Bb2 Re8 {A rare continuation instead of the main} (10...
dxc4) 11. h3 (11. a4 Na5 12. cxd5 exd5 13. Ne5 Rxe5 $5 14. dxe5 Qxe5 15. e4 Bg4
16. f3 dxe4 17. Qe2 Be6 $13 {1-0 Wang Hao (2718)-Harikrishna,P (2669)/Ningbo
CHN 2011/The Week in Chess 872 (59)}) (11. Qc2 Na5 12. Ne5 Nxc4 13. Nxc4 dxc4
14. Bxc4 Bd7 15. Rac1 Rac8 16. Qe2 e5 17. f3 b5 18. Ba2 c4 19. e4 Nh5 20. g3 f5
$132 {1/2 Peralta,F (2603)-Marin,M (2555)/Barcelona ESP 2011/The Week in Chess
854 (45)}) (11. Rc1 dxc4 (11... Na5 $5) 12. Bxc4 e5 13. Ng5 Bg4 14. f3 $6 (14.
Qc2 Bh5 15. Bd3 Bg6 $11) 14... Bh5 15. g4 $6 h6 16. Ne4 Nxe4 17. fxe4 Bg6 $15 {
1/2 Rabar,B-Janosevic,D/Sarajevo 1951/EXT 2002 (41)}) (11. Qe2 dxc4 (11... Na5
$5) 12. Bxc4 e5 13. h3 Bf5 14. Rfd1 Rad8 15. Bb5 e4 16. Bxc6 bxc6 17. Ne5 Rb8
18. a4 Nd5 $11 {1-0 Swiercz,D (2488)-Arutinian,D (2576)/Rijeka 2010/CBM 136 
(31)}) 11... Na5 (11... b6 $5 12. cxd5 exd5 13. dxc5 Na5 14. Qa4 bxc5 15. c4
Bd7 16. Qc2 dxc4 17. Bxc4 Nxc4 18. Qxc4 Ne4 $11 {1/2 Zhukova,N (2499)
-Kosintseva,N (2533)/Moscow 2010/CBM 138 Extra (42)}) (11... dxc4 12. Bxc4 b6
13. Qe2 Bb7 14. Rac1 Ne7 15. Rfd1 Ng6 16. Ba2 Qc6 17. c4 cxd4 18. Rxd4 e5 19.
Rdd1 Ne4 $11 {1-0 Kasimdzhanov,R (2652)-Groszpeter,A (2508)/Deizisau 2004/CBM
099 ext (50)}) 12. cxd5 exd5 13. Nd2 (13. Ne5 c4 14. Bc2 Ne4 (14... Nc6 15.
Nxc6 Qxc6 16. a4 {1/2 Jakab,A (2417)-Lukacs,P (2423)/Hungary 2009/EXT 2010})
15. Qh5 g6 16. Qh6 Bf5 (16... Nd6 17. Qf4 Qe7 18. Rae1 Nc6 19. Nxc6 bxc6 20. f3
Rb8 21. Bc1 Rb3 22. e4 $36 {1-0 Stocek,J (2578)-Votava,J (2546)/Czechia 2008/
EXT 2009 (42)}) 17. f3 Ng3 18. Bxf5 Nxf5 19. Qf4 Rac8 {[%csl Gc7]} 20. e4 f6
21. Nxg6 hxg6 22. Qxc7 Rxc7 23. exf5 gxf5 24. Rae1 Rce7 $11 {1/2 Jakovenko,D 
(2725)-Leko,P (2735)/Astrakhan 2010/CBM 137/[Marin,M] (42)}) 13... Be6 14. Rc1
$6 {An inaccuracy allowing a strong reply.} (14. Qe2 Rac8 15. a4 a6 16. Ba3 c4
17. Bc2 Qd7 18. Qf3 Nb3 19. Nxb3 cxb3 20. Bxb3 Rxc3 21. Rfb1 Bf5 22. Bb4 Rc6
23. Rb2 Qc7 24. Bd2 Be4 25. Qe2 Rb8 {1/2 Pappier,C (2400)-Schulze,M (2436)/
IECG 2002/Telechess CBM 95}) 14... b5 $1 {Preventing c3-c4 and seizing the
c4-square completely.} 15. dxc5 (15. Bxb5 $4 Reb8) 15... Nc4 $15 {[%csl Rb2,
Gc4][%mdl 32]} 16. Rb1 (16. Nxc4 $142 dxc4 (16... bxc4 $5 17. Bc2 Rab8 $15) 17.
Bc2 Rad8 18. Qe2 Nd7 $15 {[%cal Yd7c5,Yc5d3]}) 16... Qxc5 17. Nb3 Qc7 18. Bc1
a6 19. Nd4 Bd7 20. Bc2 Rac8 21. Ne2 Qe5 22. Ng3 {An incorrect pawn sacrifice
but what to do?} (22. Qd4 Qxd4 23. Nxd4 Ne4 24. Bxe4 dxe4 $17 {[%csl Ra3,Rc3,
Rd3]}) 22... Qxc3 23. Rb3 Qe5 24. Bb1 a5 25. Rd3 Qe7 26. Re1 b4 27. axb4 Qxb4
28. Bd2 Nxd2 29. Qxd2 g6 30. Ba2 Bb5 31. Rb1 Qxd2 32. Rxd2 Rc5 33. Rb3 a4 34.
Ra3 Ra8 35. f3 Rc1+ 36. Kf2 $2 {[%csl Rf2]} (36. Kh2 $142 $17) 36... Rac8 37.
e4 R8c2 38. Rxc2 Rxc2+ 39. Ke3 Rxg2 40. Kf4 Kg7 41. h4 h6 {[%cal Rg6g5]} 0-1

[Event "Nalchik FIDE GP"]
[Site "Nalchik"]
[Date "2009.04.26"]
[Round "10"]
[White "Grischuk, Alexander"]
[Black "Alekseev, Evgeny V"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2748"]
[BlackElo "2716"]
[Annotator "Krasenkow,M"]
[PlyCount "103"]
[EventDate "2009.04.15"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "RUS"]
[EventCategory "19"]
[SourceTitle "CBM 130"]
[Source "ChessBase"]
[SourceDate "2009.05.20"]
[SourceVersion "1"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. h3 {A useful prophylactic move, quite popular in modern
GM practice.} dxc4 11. Bxc4 b6 (11... e5 {is more common}) 12. Bd3 {Other
options:} (12. a4 e5 13. Ba3 e4 14. Nd2 Re8 15. f3 Na5 16. Ba2 Be6 17. Nxe4
Nxe4 18. fxe4 Bxa2 19. Rxa2 Rxe4 20. Raf2 f6 21. dxc5 Rae8 22. Qd5+ Qf7 23.
Qxf7+ Kxf7 24. cxb6 axb6 25. Bb4 Rd8 26. Rf5 Rxe3 {1/2-1/2 Tarjan,J-Rohde,M/
Lone Pine 1977/MCD}) (12. Re1 {needs more tests:} Bb7 (12... Rd8 13. Qc2 $6 Bb7
14. Bd3 Na5 15. e4 $2 cxd4 16. Nxd4 (16. cxd4 Qxc2 17. Bxc2 Rac8 $17) 16...
Rac8 17. Nb5 Qd7 18. Bf1 a6 $17 {0-1 Galliamova,A-Giorgadze,G/Pula 1997/EXT
2000 (59)}) 13. e4 (13. Bd3 e5 14. e4 cxd4 15. cxd4 Nxd4 16. Nxd4 exd4 17. e5
Qc6 18. Bf1 Ne4 19. Qxd4 Rfd8 20. Qe3 h6 $11 {1/2-1/2 Stocek,J-Varga,Z/
Budapest 1998/EXT 2000 (24)}) 13... cxd4 14. e5 Nd5 15. Bxd5 exd5 16. cxd4 Bc8
17. Qd3 Ne7 18. a4 (18. Bg5 $1 $14) 18... Bf5 19. Qa3 Nc6 20. Bd2 Be4 21. Rac1
Qb7 $13 {0-1 Djuric,S-Abramovic,B/Yugoslavia 1988/EXT 1997 (50)}) (12. Qe2 e5 (
12... Bb7 $5 13. e4 $6 cxd4 14. e5 Na5 15. exf6 Qxc4 16. Qe5 Qd3 $15 {1-0
Shabalov,A-Stefansson,H/Winnipeg 1997/CBM 060 ext (23)}) 13. Bb2 (13. Rd1 e4
14. Nh2 $6 Na5 15. Ba2 c4 16. Ng4 Nd5 17. Bd2 Bxg4 18. Qxg4 f5 $17 {0-1 Carnic,
S-Tukmakov,V/Kavala 1991/EXT 2003 (37)}) 13... e4 (13... Bf5 14. Rfd1 Rad8 15.
Rac1 Bg6 $6 16. Bb5 e4 17. Bxc6 Qxc6 18. Ne5 $14 {1-0 Templier,N-Tiviakov,S/
Corsica 2005/EXT 2006 (73)}) 14. Nd2 Na5 15. Ba2 c4 $1 16. a4 Be6 17. Ba3 Rfc8
18. Rab1 Qd7 19. Qd1 Nb3 $1 20. Qc2 Bxh3 $1 $40 {1/2-1/2 Korobov,A-Bu Xiangzhi/
Beijing 2008/CBM 126 Extra (40)}) (12. Bb2 Bb7 (12... e5 13. dxe5 Nxe5 14. Be2
Be6 15. Qc2 Bc4 16. Nxe5 Bxe2 17. Qxe2 Qxe5 18. c4 Qe6 19. Rfd1 Rfd8 20. Qf3
Ne4 {1/2-1/2 Michenka,J-Petenyi,T/Frydek Mistek CZE 2009/CBM 129}) 13. Qe2 (13.
Rc1 Rad8 14. Bd3 Ne7 15. Re1 Ng6 16. a4 Rfe8 17. e4 e5 18. d5 Bc8 19. c4 Re7
20. Rc2 Ne8 21. Qa1 f6 22. Bc1 Nd6 $11 {0-1 Sherbakov,R-Shetty,R/Calcutta 2002/
CBM 088 (47)}) 13... e5 14. Rfd1 (14. Rac1 Rad8 15. Rfd1 e4 16. Nd2 Ne7 17. Ba2
Nf5 18. Nf1 Rfe8 19. c4 cxd4 20. exd4 Qf4 21. Ne3 Nh4 22. c5 Nf3+ $1 $40 {
0-1 Bromberger,S-Loeffler,S/Germany 2003/CBM 095 (30)}) 14... Rad8 15. a4 h6
16. Bb5 e4 17. Nd2 Na5 18. Ba6 Bxa6 19. Qxa6 c4 $2 (19... Rd7 $13) 20. Ba3 Rd5
$6 (20... Rfe8 21. Bb4 Re6 22. Bxa5 bxa5 23. Qxc4 Rc6 24. Qb5 Rxc3 25. Rab1 $16
) 21. Bxf8 Kxf8 22. Rdb1 $18 {1-0 Beliavsky,A-Lendwai,R/Graz 1996/EXT 1998 (38)
}) (12. Ba2 Bb7 13. Bb2 Na5 14. Ne5 c4 15. f3 Nd5 16. Qe2 f6 17. Ng4 e5 18.
Rad1 Rae8 19. dxe5 $2 (19. e4 $13) 19... f5 $1 20. Nf2 Rxe5 21. e4 fxe4 22.
Nxe4 Nf4 $17 {0-1 Jakab,A-Ilincic,Z/Budapest 2006/CBM 112 ext (30)}) 12... Rd8
$146 {[%mdl 8] A healthy idea - just to complete development.} (12... e5 {
is now strongly met by} 13. Qc2 $1 {[%cal Ye3e4] e.g.} Rd8 (13... Bb7 14. e4 c4
15. Bxc4 exd4 16. Bd3 dxc3 17. Qxc3 Rac8 18. Bb2 Rfd8 19. Rad1 Qf4 20. Bb1 Re8
21. Qd2 Qxd2 22. Nxd2 Ne5 23. Rfe1 $14 {1-0 Ibragimov,I-Vekshenkov,N/Voronezh
1991/CBM 022 ext (34)}) (13... Re8 14. e4 exd4 15. cxd4 cxd4 16. Nxd4 Bb7 17.
Bb2 Rac8 18. Nf5 Ne5 19. Qxc7 Rxc7 20. Bb5 $16 {1/2-1/2 Lesiege,A-Kaliksteyn,A/
New York 1993/EXT 1997 (28)}) 14. e4 c4 15. Bxc4 exd4 16. Bg5 $6 (16. Bb2 $1
$14) 16... Bb7 17. Bxf6 gxf6 18. Bd5 Rac8 19. Rac1 Ne7 20. Bxb7 Qxb7 21. Rfd1
dxc3 22. Rxd8+ Rxd8 23. Qb3 Qxe4 24. Rxc3 Qd5 $15 {1/2-1/2 Volzhin,A-Tolnai,T/
Budapest 1996/CBM 053 (41)}) 13. Bb2 Ne7 14. Re1 Ng6 15. e4 Bb7 16. Nd2 {
It is not clear what to do.} (16. g3 {, with the black bishop on b7, looks
risky.}) 16... Rd7 17. Bf1 Rad8 18. Qe2 Qc6 19. Qc4 Qc7 20. Qe2 Qc6 21. Qc4 Qc7
{Draw?} 22. Rac1 {Not yet!} h5 $6 {Black certainly overestimates his position.
This pawn will be weak.} (22... Qf4 $11) 23. Qe2 {[%cal Re4e5]} h4 (23... Qf4
24. g3 Qg5 25. Nf3 Qh6 {doesn't look very attractive.}) 24. e5 Nd5 25. Qg4 {
[%csl Rh4][%cal Rd2f3]} (25. Ne4 $5 Qc6) 25... Nde7 $2 {Black loses the thread
of the game. It was possible to hold the h4-pawn by means of} (25... Qc6 26.
Nf3 Ndf4 27. Ng5 {[%cal Yc1d1,Yb2c1]} cxd4 28. cxd4 Qa4 {- White's task is not
so easy!}) 26. Bd3 {[%cal Yd2e4]} Nf5 $2 {Strange desperation. Why give up the
healthy e6-pawn? It was better to wait.} 27. Bxf5 exf5 28. Qxf5 Qc6 29. Ne4 Qe6
30. Qg5 Qe7 31. Qg4 Qe6 32. Qg5 Qe7 33. Qe3 Qe6 34. Nd6 Ba8 35. Qg5 Ne7 36.
Qxh4 {Finally Black has lost two pawns. Alexander Grischuk easily brings home
his advantage.} Nf5 37. Nxf5 Qxf5 38. e6 (38. Re3 $5) 38... Qg6 (38... fxe6 39.
Re5 Qg6 40. Rg5 $18) 39. exf7+ Rxf7 $5 40. Qg4 $1 {Certainly not} (40. Qxd8+ $2
Rf8 41. Qxf8+ Kxf8 $132) 40... Qxg4 41. hxg4 Rc8 42. dxc5 Rxc5 43. c4 Kh7 44.
f3 Rfc7 45. Re5 $1 Bb7 46. Rxc5 Rxc5 47. Rd1 $1 Bc8 48. Rd8 $1 Rxc4 49. Re8 {
[%cal Re8e7] The right strategy - to give up part of the material to activate
pieces and create an attack. Black is helpless.} Rc7 50. Be5 Rc1+ 51. Kh2 Re1
52. Re7 1-0

[Event "Poikovsky Karpov 05th"]
[Site "Poikovsky"]
[Date "2004.03.24"]
[Round "7"]
[White "Lautier, Joel"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2676"]
[BlackElo "2719"]
[Annotator "Lautier,J"]
[PlyCount "96"]
[EventDate "2004.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[EventCategory "18"]
[SourceTitle "CBM 100"]
[Source "ChessBase"]
[SourceDate "2004.06.01"]
[SourceVersion "1"]
[SourceVersionDate "2004.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. Bb2 Na5 11. cxd5 exd5 12. Ne5 c4 13. Bc2 Ne4 14. f3 (14.
Qh5 $6 g6 (14... f6 $2 15. Ng6 Rd8 16. Nf4 Qf7 17. Qxf7+ Kxf7 18. Nxd5 Bf5 19.
Nf4 $16) 15. Qh4 f6 16. Ng4 Bxg4 17. Qxg4 f5 $15) 14... Nd6 15. Qb1 (15. a4 $6
f6 16. Ba3 Re8 (16... fxe5 17. dxe5 Nf7 18. Bxf8 Kxf8 19. f4 $36) 17. f4 Ne4 (
17... fxe5 18. Qh5 g6 (18... e4 19. Bxd6 $14) 19. Bxg6 hxg6 20. Qxg6+ Qg7 21.
Qxd6 Nb3 22. Rae1 Nd2 (22... Be6 $6 23. f5 Bf7 24. Rf3 Rad8 25. Qc7 Qf6 26.
dxe5 Rxe5 27. Rg3+ Kh8 28. Rf1 $16) 23. Rf2 Bh3 24. Rxd2 Rad8 25. Qc5 exf4 $13)
18. Bxe4 dxe4 19. Qh5 Be6 20. f5 Bd5 21. Ng6 Nb3 $15) 15... g6 (15... Nb3 16.
Bxh7+ (16. Bxb3 cxb3 $15) 16... Kh8 17. Bc2 (17. Ra2 Nd2 18. Qe1 Nxf1 19. Bb1 (
19. Qh4 Qd8 20. Qh5 g6 21. Bxg6+ Kg7 22. Qh7+ Kf6 23. Qh4+ Ke6 $19) 19... Bf5
$17) 17... Nxa1 18. Bxa1 (18. Qxa1 Bf5 $15) 18... Qb6 (18... g6 19. e4) (18...
Be6 19. e4 $44) 19. Bb2 $44 (19. Qe1 Kg8 (19... Bf5 $2 20. Bxf5 Nxf5 21. e4 Nd6
22. Nd7 $16) 20. e4 (20. Qh4 Nf5) 20... Re8 21. Qg3 $44 (21. Kh1 $2 f6 22. Ng6
Bf5 23. Nh4 Bh7 $19) (21. Qh4 $2 Rxe5 22. Rb1 Nb5 23. Rxb5 Qxb5 24. dxe5 Qb6+
25. Kh1 dxe4 26. Bxe4 g6 $17) 21... f6 22. Ng6 dxe4 23. fxe4 Nxe4 24. Qh4 $36))
16. a4 f6 (16... Nb3 $2 17. Bxb3 cxb3 18. Ba3 f6 19. Qxb3 fxe5 20. Qxd5+ Nf7
21. Bxf8 Kxf8 22. Rac1 $16) 17. Ng4 (17. Ba3 $2 fxe5 18. dxe5 Nf5 19. Bxf8 Kxf8
20. Bxf5 Bxf5 21. e4 Qc5+ 22. Kh1 Be6 $17) 17... Bxg4 18. fxg4 Kg7 (18... Rae8
19. Ba3 Kg7 {->> 18...Kg7}) 19. Ba3 Rae8 (19... Rfe8 20. Bxd6 (20. Rf3 Re6)
20... Qxd6 21. e4 dxe4 22. Bxe4 Re7 23. Ra2 Rae8 $11) 20. Qb4 (20. Bxd6 Qxd6
21. Qb5 (21. e4 dxe4 22. Bxe4 Nb3 23. Ra2 Qe6 (23... Nxd4 $2 24. Rd1 $18) 24.
Re2 Qxg4 25. Rfe1 b6 $15) 21... b6 22. Rf3 (22. Rae1 Qa3 23. Qxd5 Qxc3 24. Be4
(24. Qd7+ Kh8 $17 (24... Kg8 25. Be4 $1)) 24... Re7 $36) 22... Re7 23. Raf1 $11
) 20... Rd8 21. Rf4 Rf7 22. Raf1 $6 (22. Qb2 Re8 23. Re1 $11) 22... Nb3 $1 (
22... b6 {/\ Nb3!} 23. Qb1 Re8 24. Bxd6 Qxd6 25. e4) 23. Bxb3 cxb3 (23... a5
24. Qc5 cxb3 25. Rxf6 Qxc5 26. Rxf7+ Nxf7 27. dxc5 (27. Bxc5 b5 $1 28. axb5 Nd6
29. Rb1 a4 $36) 27... Ne5 28. Rb1 Nxg4 29. Rxb3 Rd7 30. c6 bxc6 31. Bc5 Kf7 $11
) 24. Qxb3 Ne4 25. Rxe4 (25. Rc1 Nd2 26. Qa2 Nc4 27. Rf3 Re8 $15) 25... dxe4
26. c4 $15 Rc8 27. Rc1 (27. c5 b6 28. Qe6 bxc5 29. g5 (29. Bxc5 Qc6 30. Bd6 Qd7
$17 (30... Re8 $4 31. Bf8+)) 29... f5 30. Bxc5 Qc6 31. Bd6 Kg8 $15) 27... Qb6
28. Qd1 Qa6 29. c5 Rd7 30. Qb3 Qc6 31. a5 Rcc7 32. Rf1 (32. Rb1 $142) 32... Qd5
33. Qb1 (33. Qxd5 Rxd5 34. Rb1 Rdd7 {/\ Rc6} 35. a6 bxa6 36. Rb8 Rb7) 33... Rc6
34. Rf4 Re6 35. h3 h6 36. Bb4 Rf7 (36... b6 $6 37. cxb6 axb6 38. axb6 Rxb6 $2
39. Bf8+) 37. Be1 $6 $138 b6 $1 $17 38. axb6 axb6 39. cxb6 Rb7 40. Qc2 Rexb6
41. Bg3 (41. Qxe4 $2 Qxe4 42. Rxe4 Rb1 43. Kf1 Ra7 $19) 41... Rb2 $6 (41... Rc6
$1 42. Qxe4 Qxe4 43. Rxe4 Rc2 $17) 42. Qc8 $132 Re7 $2 (42... R2b3) 43. Rxf6 $3
$11 Kxf6 44. Qf8+ Ke6 (44... Qf7 $2 45. Bh4+ $1 (45. Qh8+ $2 Qg7 46. Be5+ Rxe5
47. dxe5+ Kf7 48. e6+ Kf6 $19) 45... g5 (45... Ke6 46. Qc8+ Kd6 (46... Rd7 $2
47. Qc6+ Rd6 48. d5+ Ke5 49. Bg3+ $18) 47. Bg3+ Re5 48. Bxe5+ Ke7 49. Qc7+ $16)
46. Qxh6+ Qg6 47. Bxg5+ Kf7 48. Qxg6+ Kxg6 49. Bxe7 Re2 50. d5 Rxe3 51. Kf2 Rd3
52. d6 $16) (44... Rf7 45. Be5+ Ke6 (45... Kg5 46. Bf4+ Kf6 47. Be5+ $11) 46.
Qe8+ Re7 47. Qg8+ $11) 45. Qg8+ Rf7 46. Qe8+ Re7 (46... Kf6 47. h4 $3 {/\ Be5}
(47. Be5+ $2 Kg5 $19) 47... Re7 48. Qf8+ Rf7 (48... Qf7 $2 49. Qh8+ Qg7 (49...
Ke6 50. Qe5+ Kd7 51. Qc7+ $18) 50. Be5+ Rxe5 51. dxe5+ Kf7 52. e6+ Kf6 53. g5+
$18) 49. Qe8 $11) 47. Qg8+ Rf7 48. Qe8+ Re7 1/2-1/2

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.03.25"]
[Round "4"]
[White "Sokolov, Ivan"]
[Black "Poetsch, Hagen"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2643"]
[BlackElo "2415"]
[Annotator "Marin,M"]
[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"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Re8 $5 {A rather unusual move. The main lines involve an early
development of the queen to c7, but sometimes it later appears that this
square is not optimal. From d8, the queen could go either way, to b6, a5 or h4,
while on c7 it already has restricted its possibilities.} ({Besides, in a main
line such as} 9... Qc7 10. cxd5 exd5 11. a4 {Black has to move his rook to e8
anyway:} Re8 12. Ba3 c4 13. Bc2 {with lots of theory after both} Ne4 {and 13...
Bg4.}) 10. Bb2 {Possibly, the most consistent move. The bishop displays huge
hidden force and Black has to care about a possible opening of the centre with
cxd5 followed by c4.} (10. cxd5 {prematurely opens the e-file (justifying
Black's last move), the c8-h3 diagonal, giving up the control of the c4-square
at the same time.} exd5 11. Nd2 (11. a4 {, which is a normal reaction in the
positions with ...Qc7 instead of ...Re8, makes less sense now. Here is one
possible line in which Black simply is a tempo up!} c4 12. Bc2 Bg4 13. Qe1 Bxf3
14. gxf3 Qd7) 11... Bg4 (11... c4 $5 12. Bc2 Bg4 13. f3 Bh5 {looks very
comfortable for Black.}) 12. f3 Bh5 13. Re1 Bg6 (13... c4 14. Bc2 Ne4 $5 {
is worth a try.}) 14. Bxg6 hxg6 15. Nb3 ({He should at least have grabbed the
pawn, although this would have offerred Black excellent play on the light
squares:} 15. dxc5 Ne5 16. Nb3 Rc8 17. a4 g5 18. h3 Qd7 $44) 15... cxd4 ({
A more ambitious continuation would have beeen} 15... c4 16. Nd2 b5 17. e4 a5
$132 {Having gained two whole tempi, Black is well prepared to counter the
central storm with a queenside attack.}) 16. cxd4 Na5 17. Nxa5 Qxa5 {Delaying
the queen development has been entirely justified: Her Majesty reached a5
without loss of time!} 18. Bd2 Qa6 19. Qb3 Rac8 $11 {Trangmar,A-McFarland,R/
Brighton 1972/EXT 99 (1/2, 22)}) (10. Ne5 {is a normal reaction to Black's
refraining from taking the e5-square under control.} Nxe5 11. dxe5 Nd7 12. f4
dxc4 13. Bxc4 Nb6 14. Bb3 Bd7 15. a4 Bc6 16. a5 Nd5 17. Qe1 Ne7 18. Qe2 Be4 19.
Rd1 Qc7 {Black has a stable position and there is no white kingside attack in
view. White did not find anything better than offer a repetition of moves:} 20.
Ra4 Bc6 21. Ra1 {In Borisenko,G-Kortschnoj,V/Gyula 1965/EXT 99 (0-1, 53),
Black rejected this indirect draw offer, got into a worse position, but
eventually won.}) (10. Qc2 {does not look like the best way of maintaining the
tension, because it places the queen on an exposed square, blocking the
bishop's retreat at the same time. There is not too much practical material
available and I only have selected two games of Eric Lobron, a great
specialist and lover of the Nimzo-Indian.} Na5 ({Deviating from an older game
of his:} 10... b6 11. Ne5 Bb7 12. Nxc6 Bxc6 13. f3 Rc8 14. Qe2 Ba4 15. Bd2 Qd7
{with a splendid display of pieces on light squares, Verdier,P (2250)-Lobron,E
(2580)/Cap d'Agde 1994/EXT 97 (0-1, 41)}) 11. Ne5 ({One drawback of the queen
move is revealed after} 11. cxd5 c4 $1 12. Be2 exd5 $15 {[%cal Gc8g4,Ga5b3,
Gf6e4]}) 11... b6 (11... Nxc4 12. Nxc4 dxc4 13. Bxc4 Bd7 $11 {[%cal Ga8c8]})
12. Rd1 Qc7 13. f3 (13. cxd5 c4 $1 14. Be2 exd5 15. f3 Bb7 $11 {[%cal Ge8e6,
Ga8e8,Ga5b3] White has problems carrying out e3-e4, his knight stands somewhat
in the way and the b3-square is under strict black control. Black has entirely
adequate play.}) 13... Ba6 14. cxd5 Bxd3 15. Qxd3 exd5 16. Rb1 Re6 17. Bd2 Rae8
{Little by litle, the central knight starts looking more like a source of
troubles.} 18. Be1 Nc6 19. Bg3 Nh5 20. Nxc6 Qxc6 21. Bf2 c4 22. Qf5 g6 23. Qc2
f5 $15 {Johansson,V (2177)-Lobron,E (2497)/Stockholm 2003/CBM 097 ext (0-1, 33)
. The central break has been prevented and Black enjoys a stable space
advantage on both wings.}) 10... dxc4 $146 {I have my doubts about this move,
especially in connection with the next one. I believe that, once the rook has
been developed to e8, Black should find a way of provoking cxd5, ...exd5.} (
10... Qd6 $6 {does not look too good either, because the queen is exposed here.
} 11. a4 b6 12. cxd5 exd5 13. c4 cxd4 14. cxd5 Qxd5 15. Nxd4 Ne5 16. Bb5 Bb7
17. f3 $14 {Iljin,A (2572)-Kozlov,G (2265)/Dagomys 2009/CBM 129 Extra (1/2, 49)
}) (10... Na5 $5 {looks consequent.} 11. Ne5 (11. cxd5 c4 12. Bc2 exd5 $13 {
Activating the b2-bishop with a4 and Ba3 supposes the loss of a tempo 
(equivalent to the generally useful ...Na5, controlling the b3-square), which
offers Black better chances for equality than in the main lines with ...Qc7.})
11... b6 $6 {Too careless.} (11... dxc4 12. Nxc4 Nxc4 13. Bxc4 Bd7 $132 {
[%cal Ga8c8]}) 12. cxd5 $1 {White's bishops open up with great force now.} Qxd5
(12... exd5 13. Bb5 Re7 14. c4 $36) 13. c4 Qd6 14. dxc5 Qxc5 15. Bd4 Qe7 16.
Rc1 Nd7 17. Qh5 $40 {Chow,A (2198)-Kuderinov,K (2422)/Chicago 2008/CBM 125
Extra (1-0, 50)}) (10... Qc7 {would transpose to the not too popular line 9...
Qc7 10.Bb2 Re8!?, but certainly would be preferrable to the text move.}) 11.
Bxc4 e5 $6 {Asking for trouble.} (11... Bd7 $5) 12. h3 $6 {Too slow and
missing a good opportunity for an enduring initiative.} (12. Ng5 {is not too
dangerous.} Rf8 13. dxc5 Bf5 $44) (12. Nxe5 $1 Nxe5 13. dxe5 Qxd1 14. Raxd1
Rxe5 15. Rd8+ Re8 16. Rfd1 $1 (16. Rxe8+ Nxe8 17. Rd1 Kf8 18. f3 Ke7 19. a4 Be6
$11) 16... Be6 (16... Kf8 17. Bb5 $1 Rxd8 18. Rxd8+ Ke7 19. Rh8 $16) 17. Rxa8
Rxa8 18. Bxe6 fxe6 19. c4 $1 Kf7 20. Bxf6 $1 (20. f3 Ke7 {[%csl Gd7]}) 20...
Kxf6 21. Rd7 Rb8 22. g4 (22. a4 b5 $1 23. axb5 a6 $11) 22... a6 23. Rc7 b6 24.
Kg2 $16 {Black's position is quite passive. White intends making slow kingside
progress, which eventually may suffocate Black.}) (12. dxe5 $1 {is likely to
lead to the same ending, too.}) 12... Qb6 {Developing the queen on a more
active square than c7.} ({Maybe} 12... Be6 $11 {would have been even more
precise, immediately taking advantage of the rook's presence on e8.}) 13. Qc2
Be6 $11 14. Bxe6 Rxe6 {In the absence of his colleague, the b2-bishop is by
far less impressive.} 15. Ng5 Rd6 16. dxe5 Nxe5 17. c4 Re8 18. Rab1 Qc6 {
Black has a very active piece display and the c4-pawn is vulnerable. For White,
it is quite difficult setting up an attack based on his kingside majority.} 19.
Qf5 g6 20. Qc2 h6 21. f4 {Ambitious, but strategically risky.} (21. Bxe5 Rxe5
22. Nf3 Re7 $11) 21... Ned7 22. Qf2 (22. Nf3 Rxe3 23. f5 g5 $15) 22... hxg5 (
22... Nb6 $5 {[%csl Gc4]}) 23. fxg5 Qe4 24. Bxf6 Nxf6 25. gxf6 b6 {White has
an extra pawn, but his whole structure is weak. Besides, his attacking chances
are not too realistic. With a minimum of care, Black can prevent Qh4-h6-g7#.}
26. Kh1 Ree6 {Black plays solidly, aiming to eliminate the main danger.} ({
A more ambitious try would have been} 26... Rd3 $5 {[%cal Gd3e3,Ge3h3,Ge3e2]})
27. Rbd1 Rxf6 $15 (27... Qxc4 $5) 28. Qxf6 Rxf6 29. Rxf6 Qxc4 30. Rd7 a5 31.
Rxb6 Qc1+ 32. Kh2 Qxe3 33. Rb8+ Kg7 34. Rbb7 Qe5+ 35. Kg1 1/2-1/2

[Event "Astrakhan FIDE GP"]
[Site "Astrakhan"]
[Date "2010.05.24"]
[Round "13"]
[White "Gelfand, Boris"]
[Black "Eljanov, Pavel"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2741"]
[BlackElo "2751"]
[Annotator "Marin,M"]
[PlyCount "80"]
[EventDate "2010.05.10"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "RUS"]
[EventCategory "20"]
[SourceTitle "CBM 137"]
[Source "ChessBase"]
[SourceDate "2010.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 ({Theory holds
} 13... Ne4 {for safer.}) 14. Qe1 Bh5 15. Nh4 Ng4 16. g3 Bg6 17. Nxg6 hxg6 18.
Qd2 Na5 ({Despite apparences,} 18... f5 {fails to slow down the advance of
White's compact mass of pawns.} 19. Rae1 Nf6 20. f3 Qd7 21. g4 $1 $36 {
Jussupow,A (2655)-Lobron,E (2570)/Munich 1994/CBM 042/[Jussupow] (1-0, 57)})
19. Rae1 Nf6 $146 (19... Nb3 {led to the loss of a pawn without sufficient
compensation:} 20. Qd1 Qd7 21. Bxb3 cxb3 22. Qxb3 Rac8 23. Bc1 Nf6 24. f3 Re6
25. Bd2 Rb6 26. Qc2 Ra6 27. Ra1 Ne8 28. e4 {Del Rio Angelis,S (2487)-Kurajica,
B (2532)/Las Palmas 2005/CBM 109 ext (1-0, 54)}) 20. f3 Nb3 21. Qd1 Qa5 22. Bb4
(22. Bxb3 Qxc3 $1) 22... Qxa4 {Black has won a pawn and, more important, has
spoiled White's queenside stability. This will offer him adequate counterplay
when faced with the advance of the centre.} 23. e4 a5 24. Bd6 Re6 25. Be5 {
As a consequence of Black's queenside action, the bishop has reached an
unstable square and will have to be exchanged soon.} Qd7 26. Bxf6 Rxf6 27. e5
Rb6 28. f4 f5 29. exf6 Rxf6 30. Bxb3 cxb3 31. Qxb3 a4 $132 32. Qb4 b6 33. Re5
Re6 34. Ra1 Kh7 35. f5 gxf5 36. Rxf5 Rae8 37. Re5 Rxe5 38. dxe5 Rxe5 39. Qxa4
Qxa4 40. Rxa4 Re3 1/2-1/2

[Event "Astrakhan FIDE GP"]
[Site "Astrakhan"]
[Date "2010.05.18"]
[Round "8"]
[White "Jakovenko, Dmitrij"]
[Black "Leko, Peter"]
[Result "1/2-1/2"]
[ECO "E58"]
[WhiteElo "2725"]
[BlackElo "2735"]
[Annotator "Marin,M"]
[PlyCount "83"]
[EventDate "2010.05.10"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "RUS"]
[EventCategory "20"]
[SourceTitle "CBM 137"]
[Source "ChessBase"]
[SourceDate "2010.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. h3 Re8 11. Bb2 Na5 12. cxd5 exd5 13. Ne5 {White's system
of development does not produce a strong impression. His knight is not too
stable in the centre, standing in the way of the own pawns at the same time.}
c4 14. Bc2 Ne4 15. Qh5 g6 16. Qh6 Bf5 $146 (16... Nd6 17. Qf4 Qe7 18. Rae1 Nc6
{This does not seem logical, since it clears the path for the white pawns,
while worsening Black's queenside structure.} 19. Nxc6 bxc6 20. f3 Rb8 21. Bc1
Rb3 22. e4 $36 {Stocek,J (2578)-Votava,J (2546)/Czechia 2008/EXT 2009 (1-0, 42)
}) 17. f3 ({The critical continuation is} 17. g4 {, but White probably was not
ready to weaken his kingside position.}) 17... Ng3 18. Bxf5 Nxf5 19. Qf4 Rac8 {
[%csl Gc7]} 20. e4 f6 21. Nxg6 hxg6 22. Qxc7 Rxc7 23. exf5 gxf5 24. Rae1 Rce7 {
The active knight and the queenside majority compensate for the kingside
weaknesses.} 25. Kf2 b5 26. Rxe7 Rxe7 27. Re1 Rxe1 28. Kxe1 Nb3 29. Kd1 f4 30.
Bc1 Nxc1 31. Kxc1 Kg7 32. Kd2 {White is best advised to remain passive.} (32.
a4 $6 {can only cause troubles:} bxa4 33. Kb2 Kg6 34. Ka3 Kg5 35. Kxa4 Kh4 36.
Kb5 a5 $1 (36... Kg3 37. h4 $1 Kxh4 38. Kc5 Kg3 39. Kxd5 Kxg2 40. Ke4 a5 41. d5
$11) 37. Kxa5 Kg3 38. h4 Kxh4 39. Kb4 Kg3 40. Kc5 Kxg2 41. Kxd5 Kxf3 42. Kc5
Ke3 43. d5 f3 44. d6 f2 45. d7 f1=Q 46. d8=Q Qf4 {with an extra pawn in the
queen ending.}) 32... Kg6 33. Ke2 Kg5 34. Ke1 Kh4 35. Kf2 a6 36. Ke2 Kg3 37.
Kf1 Kh4 38. Kf2 Kh5 39. Ke2 Kg5 40. Ke1 Kh4 41. Kf2 Kg5 42. Ke1 1/2-1/2

[Event "Metz op 30th"]
[Site "Metz"]
[Date "2012.04.18"]
[Round "7"]
[White "Maiorov, Nikita"]
[Black "Zubarev, Alexander2"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2552"]
[BlackElo "2597"]
[Annotator "Metz Alekhine/Primel,D"]
[PlyCount "74"]
[EventDate "2012.04.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 {01H30} Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6
8. a3 Bxc3 9. bxc3 {86} Qc7 {[%cal Ge6e5,Gd5c4]} (9... dxc4 {L'alternative
mais c'est aussi souvent une simple interversion de coups.}) 10. Bb2 (10. cxd5
exd5 11. a4 Re8 {[%csl Ge4];Graf,A (2643)-Maiorov,N (2524) Pfalz op 2nd 2009 
(8) 1/2}) 10... Re8 11. Rc1 {75} (11. Qe2 dxc4 12. Bxc4 e5 13. h3 a6 14. Rad1
b5 15. Ba2 e4 16. Nd2 Be6 17. d5 Nxd5 18. c4 bxc4 19. Nxe4 c3 20. Nxc3 Nxc3 21.
Bxc3 Bxa2 22. Qxa2 h6 23. Qe2 Re6 24. Rd2 Ne7 25. Rfd1 Qc6 26. Qc4 Re8 27. Rd7
Re4 28. Qb3 Re6 29. Qb7 Qa4 30. Bb2 Qc2 31. Rc1 Qg6 32. Qc7 Nf5 33. Kh2 Rb6 34.
Ba1 Rc6 35. Qf4 Qe6 36. Rcd1 c4 37. Bc3 Qg6 38. e4 Ne7 39. f3 Qh5 40. a4 Qc5 {
Wang Hao (2752)-Hou,Y (2603) Wijk aan Zee 2013 1-0}) 11... Na5 {[%cal Ga5c4,
Gd5c4,Gc5d4]} (11... dxc4 12. Bxc4 e5 13. Ng5 Nd8 14. f4 exf4 {[%csl Re3]} 15.
Rxf4 h6 16. Nf3 {Hjelmaas,L (2318)-Gabrielsen,S (2308) NOR-ch Bergen 2009 (3)
0-1} (16. Rxf6 gxf6 17. Nf3 Rxe3 18. Qd2 $13)) 12. Nd2 dxc4 13. Nxc4 Nxc4 14.
Bxc4 {69} e5 15. f3 {53} Be6 $146 {Un coup provocateur mais les Noirs auront
une belle case de blocage pour le N} (15... Rd8 16. Qe2 Bd7 17. e4 Ba4 18. Kh1
Qe7 19. f4 exd4 20. e5 Nd5 21. cxd4 cxd4 22. Bxd4 Bc6 23. Qf2 a5 24. Qg3 h6 25.
h4 Kh8 26. f5 f6 27. Rce1 Qf8 28. Bb2 Rd7 29. Bxd5 Bxd5 30. exf6 gxf6 31. Qg6
Rf7 32. Re6 Qg7 33. Rxf6 Bxg2+ 34. Kxg2 {1-0 (34) Sulava,N (2539)-Brkic,A 
(2564) Otocac 2010}) 16. d5 (16. Bxe6 $6 {[%csl Rb2]} Rxe6 $15) 16... Bd7 17.
e4 b5 $1 18. Be2 {30} c4 19. a4 $5 bxa4 20. Ba3 Reb8 {[%cal Gf6e8,Ge8d6,Gb8b3]}
21. Ra1 {21} Rb3 22. Qc1 Ne8 {[%cal Ge8d6]} 23. f4 {Les Blancs sentent que les
Noirs ont pris l'initiative et ils doivent réagir mais la poussée f4 entraine
des affaiblissements} Rc8 24. Kh1 Nf6 25. Bf3 exf4 26. d6 Qa5 $36 {[%csl Rc3]
Les Blancs n'ont pas assez de compensations} 27. Qxf4 {[%csl Rf7][%cal Ge4e5]}
Re8 $1 (27... Rxc3 28. e5 $44) 28. Bb4 Qe5 29. Qe3 a5 30. Bc5 Rxc3 $19 31. Qf2
Rd3 32. Rac1 c3 33. Ba3 Rc8 34. Rc2 Be6 {[%cal Ge6b3]} 35. Qb6 h6 36. Qa6 Rd2
37. Rcc1 Nxe4 0-1

[Event "Match Reshevsky-Najdorf +6-5=7"]
[Site "Buenos Aires"]
[Date "1953.06.??"]
[Round "8"]
[White "Najdorf, Miguel"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "E58"]
[Annotator "Morgado,J"]
[PlyCount "51"]
[EventDate "1953.06.01"]
[EventType "match"]
[EventRounds "18"]
[EventCountry "ARG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 b6 10. cxd5 exd5 11. Bb2 c4 12. Bc2 Ne7 13. Ne5 (13. Nd2 Re8 14.
Re1 Bf5 15. f3 Bxc2 16. Qxc2 Ng6 17. Nf1 Qd7 $11 {Najdorf,M-Reshevsky,S/Buenos
Aires 1953}) 13... Bf5 14. f3 Bxc2 15. Qxc2 Nd7 16. a4 Nxe5 17. dxe5 Qc7 18. f4
f6 19. exf6 Rxf6 20. Ba3 Re8 21. Rae1 Ng6 22. e4 $2 (22. Qd2 $11) (22. g3 $11)
22... Nxf4 $17 23. exd5 Rxe1 $2 ({Reshevsky no vio} 23... Qf7 24. Qd1 (24. d6
$2 Re2 $19) 24... Rxe1 25. Qxe1 h6 {ganando las negras el Pd, ya que no es
posible ahora} 26. d6 $2 {debido a} Nh3+ $1 $19) 24. Rxe1 Qf7 25. Qe4 Nxd5 26.
Qxc4 1/2-1/2

[Event "Match Reshevsky-Najdorf +6-5=7"]
[Site "Buenos Aires"]
[Date "1953.06.??"]
[Round "10"]
[White "Najdorf, Miguel"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[ECO "E58"]
[Annotator "Morgado,J"]
[PlyCount "181"]
[EventDate "1953.06.01"]
[EventType "match"]
[EventRounds "18"]
[EventCountry "ARG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 b6 10. cxd5 exd5 11. Bb2 c4 12. Bc2 Ne7 (12... b5 13. Qe1 Be6 14.
Nh4 Ne4 15. f3 $14 {Janosevic,D-Puc,S/Zagreb 1953}) (12... Bg4 13. Qe1 Ne4 (
13... Bxf3 14. gxf3 Qd7 $13) 14. Nd2 Nxd2 15. Qxd2 Bh5 16. f3 $14 {Reshevsky,
S-Petrosian,T/Zuerich 1953/Candidates}) (12... Re8 13. Nd2 Bb7 14. Re1 $14 {
Najdorf,M-Wexler,B/Mar del Plata 1954}) 13. Nd2 (13. Ne5 Bf5 14. f3 Bxc2 15.
Qxc2 Nd7 16. a4 Nxe5 17. dxe5 Qc7 18. f4 f6 19. exf6 Rxf6 20. Ba3 Re8 21. Rae1
Ng6 22. e4 Nxf4 23. exd5 Rxe1 24. Rxe1 Qf7 25. Qe4 Nxd5 26. Qxc4 {1/2-1/2
Najdorf,M-Reshevsky,S/Buenos Aires 1953/MCL}) 13... Re8 14. Re1 Bf5 15. f3 Bxc2
16. Qxc2 Ng6 17. Nf1 Qd7 18. Re2 Nh5 $5 (18... h5 $5) 19. g4 $6 (19. a4 $5)
19... Nf6 20. Ng3 Nh4 $6 (20... h5 21. Qf5 hxg4 22. Qxd7 Nxd7 23. fxg4 Nf6 24.
h3 Ne4 $40) 21. Rf1 h5 22. Nf5 Ng6 23. h3 Re6 24. Bc1 Rae8 {Aqui reshevsky
ofrece tablas, que son rechazadas por Najdorf.} 25. Rg2 hxg4 26. hxg4 Nh7 27.
Kf2 Qb5 28. Bd2 Ngf8 29. Rh1 g6 30. a4 Qb3 31. Qxb3 cxb3 32. Ng3 b5 33. a5 Ra6
34. Ra1 Rc8 35. Ne2 Rc4 36. Nf4 Ra4 37. Rb1 Rd6 $6 (37... Ra2 38. Kg3 Nf6 39.
Rxb3 R6xa5 40. Bc1 Rxg2+ 41. Kxg2 $14) 38. Rxb3 g5 39. Nh5 $6 (39. Nd3 Rxa5 40.
Rb2 Rda6 41. Kg3 Ng6 42. Nc5 $40) 39... Rxa5 40. Rb2 a6 $6 {suspendida por
primera vez.} (40... Rda6 41. Kg3 $40) 41. c4 $1 Ra1 42. cxb5 $16 Rb6 43. Bc3
axb5 44. Rxb5 Rxb5 45. Bxa1 Ra5 46. Bc3 Ra2+ 47. Kf1 Rxg2 48. Kxg2 Ng6 49. Kf2
f6 50. e4 dxe4 51. fxe4 Kf7 52. Ke3 Nhf8 53. Bb4 Nd7 54. Ba5 Ndf8 55. Bd8 Nd7
56. Bc7 Ndf8 57. Kd3 Nd7 58. Kc4 Ne7 59. Ng3 Ng6 60. Nf5 Ndf8 61. Bd6 Ke6 62.
Kc5 Kd7 63. Ng7 Nh7 64. Nh5 Nh8 65. Ng3 Nf7 66. Nf5 Nxd6 $2 (66... Nh8 67. Kd5
$18) 67. Nxd6 $18 Nf8 68. d5 Ng6 69. Nc4 Nf4 70. Nb6+ Kc7 71. d6+ Kd8 72. Kd4
Ng6 {suspendida por segunda vez.} 73. Nc4 Nf4 74. Kc5 Nd3+ 75. Kd5 Kd7 76. Nb6+
Kd8 77. Ke6 Nf2 78. Kf5 Ke8 79. Nd5 Kd7 80. Nxf6+ Kxd6 81. e5+ Ke7 82. Nd5+ Kd7
83. e6+ Kd6 84. e7 Kd7 85. Kxg5 Ne4+ 86. Kf5 Nd6+ 87. Ke5 Nf7+ 88. Kf6 Nd6 89.
Nb6+ Ke8 90. Nd5 Kd7 91. g5 1-0

[Event "Match Reshevsky-Najdorf +6-5=7"]
[Site "Buenos Aires"]
[Date "1953.06.??"]
[Round "13"]
[White "Reshevsky, Samuel Herman"]
[Black "Najdorf, Miguel"]
[Result "1/2-1/2"]
[ECO "E58"]
[Annotator "Morgado,J"]
[PlyCount "112"]
[EventDate "1953.06.01"]
[EventType "match"]
[EventRounds "18"]
[EventCountry "ARG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 b6 10. cxd5 exd5 11. dxc5 bxc5 12. c4 dxc4 13. Bxc4 Na5 14. Qc2
Nxc4 15. Qxc4 Qd5 16. Qf4 Ba6 17. Re1 Ne4 18. Bb2 Rad8 19. Nh4 f5 20. f3 Nd6
21. Rad1 Bd3 22. Qg5 Ne8 23. Qg3 c4 24. Bc3 Qd6 25. Qg5 h6 26. Qg6 {Aquí
Reshevsky ofreció tablas, que no fueron aceptadas por Najdorf.} Qxa3 27. Bd4
Qd6 28. Qh5 Qe7 $2 (28... Nc7 $15) 29. Ra1 $2 (29. Ng6 Qf7 30. Qh4 Nc7 31. Nxf8
Rxf8 32. Bxa7 $40) 29... Qf7 30. Qg6 $2 (30. Qxf7+ Rxf7 31. Ng6 $11) 30... f4
31. Qg4 h5 $2 (31... Rxd4 $1 32. exd4 g5 33. Ra6 Nf6 34. Qh3 gxh4 35. Qxh4 c3
$17) 32. Qh3 $2 (32. Qg5 Rd5 33. Be5 fxe3 34. Qxe3 Nf6 35. Rxa7 Rxe5 36. Rxf7
Rxe3 37. Rxf8+ Kxf8 38. Rxe3 g5 39. Rxd3 cxd3 40. Nf5 $11) 32... Qd7 $2 (32...
Rxd4 33. exd4 g5 34. Ra5 gxh4 35. Qxh4 c3 36. Rxh5 Qf6 $17) 33. Qxd7 Rxd7 $15
34. Bc5 $2 (34. Rxa7 Rxa7 35. Bxa7 fxe3 36. Bxe3 $15) 34... g5 35. Bxf8 Kxf8
36. Ra5 gxh4 37. Rxh5 fxe3 38. Rxe3 Nf6 (38... Ng7 39. Rxh4 Nf5 40. Rf4 Kg7 $17
) 39. Rxh4 c3 40. Rh8+ Kf7 41. Rc8 {suspendida} c2 42. Rxd3 Rxd3 43. Rxc2 a5 $2
({Era evidente} 43... Ra3 $40 {para poder avanzar el peón torre lo más que se
pudiera.}) 44. Ra2 Rd5 45. Kf2 Re5 46. g4 Nd7 47. f4 Rb5 48. Ke3 Ke6 49. Kd4
Rb4+ 50. Kc3 Rxf4 51. Rxa5 Rxg4 52. Rh5 Ne5 53. Rh8 Kf5 54. h4 Nf7 55. Rf8 Kf6
56. Ra8 Rxh4 {Guerra de Nervios En las apariencias, Reshevsky llevaba las de
perder ante Najdorf. Entonces, no tuvo mejor idea que complicarle la vida a
Miguel, conversándole durante toda la partida. Así fue que, por lo bajo, le
decía a su rival: --Esto va para tablas, Najdorf- Y cuando al maestro debía
jugar nuevamente, le reiteraba: --Tablas, ?no?- Y con esa reiterada
insinuación de tablas llegó al límite de la paciencia de Najdorf, que bastante
enojado, fue a quejarse al juez del match. Éste se acercó a la mesa, reprendió
a Reshevsky, y le conminó a no seguir molestando a su adversario. Cumplido el
reto por parte del árbitro, Najdorf volvió a la mesa, y no alcanzó a abocarse
nuevamente al juego, cuando Reshevsky le espetó: --!No sabía que fuera usted
alcahuete!- Bueno, imagínese que Najdorf no sabía ya qué hacer, y era tal su
estado nervioso, !que la partida concluyó en tablas! Luego lo encontré, y
comentando el caso, Najdorf me confesó: --Tablas no fue todo. En esta partida
me hizo adelgazar siete kilos. (Anécdota contada por Carlos Francisco Juárez,
el Negro, Goles numero 1227 del 11 de setiembre de 1972).} 1/2-1/2

[Event "RUS-chT 11th"]
[Site "Sochi"]
[Date "2004.04.20"]
[Round "1.5"]
[White "Kolesnikov, Evgeny"]
[Black "Bocharov, Dmitry"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2326"]
[BlackElo "2567"]
[Annotator "Mueller,Karsten"]
[PlyCount "146"]
[EventDate "2004.04.20"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Tomsk Siberian Athens-Neftekhim"]
[BlackTeam "Tomsk 400"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 d5 7. O-O O-O 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 14. Qe1 Bh5
15. Nh4 Ng4 16. g3 Bg6 17. Nxg6 hxg6 18. Qd2 f5 19. Rae1 Nf6 20. f3 Rad8 21.
Re2 Qd7 22. Rfe1 Re6 23. Kg2 Rde8 24. h3 Na5 25. Qd1 Nb3 26. Bxb3 cxb3 27. Qxb3
Ra6 28. Bc1 Qxa4 29. Qb1 Rb6 30. Qd3 Rc8 31. g4 Qc4 32. Qxc4 Rxc4 33. g5 Ne8
34. e4 fxe4 35. fxe4 dxe4 36. Bf4 Nd6 37. Bxd6 Rxd6 38. Rxe4 Rd5 39. Re7 Rxc3
40. Rxb7 Rxg5+ 41. Kf2 Rf5+ 42. Kg2 Ra5 43. h4 Ra2+ 44. Kg1 a5 45. Rd1 Rg3+ 46.
Kh1 Rh3+ 47. Kg1 Rxh4 48. d5 Rhh2 49. Ra7 Rhg2+ 50. Kh1 Rg5 51. Rd4 Re5 52. Rd1
Ree2 53. d6 Red2 54. Rxd2 Rxd2 55. d7 Kh7 56. Rxa5 Rxd7 57. Kg2 Rd3 58. Rb5 Ra3
59. Rc5 Kh6 60. Rc6 Ra7 61. Kg3 Kh5 62. Rc5+ g5 63. Rc4 Ra3+ 64. Kg2 g4 65. Rb4
Kh4 66. Rb8 $2 {[%mdl 4096] After this, White is driven back to the last rank,
which might be acceptable if there were only one g-pawn; but now the front one
can be sacrificed. danach wird Weiß auf die Grundreihe zurückgeworfen, was bei
nur einem g-Bauern zwar akzeptabel wäre, doch nun kann der vordere geopfert
werden.} ({This is the exception where passive defence was correct:
Ausnahmsweise war passive Verteidigung richtig:} 66. Rb2 $1 Ra4 67. Rc2 g5 68.
Rb2 g3 (68... Rf4 69. Rb8 g3 70. Ra8 Rf2+ 71. Kg1 Kh3 72. Rh8+ $11) 69. Rb8 $11
) (66. Rb7 $2 Ra2+ 67. Kg1 Kh3 68. Rxg7 Kg3 69. Kf1 Ra1+ 70. Ke2 Rg1 $1 $19)
66... Ra2+ 67. Kg1 Kh3 68. Rb3+ g3 69. Rb1 Ra3 70. Rc1 g5 71. Rb1 g4 72. Rc1 g2
73. Rb1 Rf3 (73... Rf3 74. Ra1 Rf1+ 75. Rxf1 gxf1=Q+ 76. Kxf1 Kh2 $19) 0-1

[Event "Presidents Cup "]
[Site "Elista"]
[Date "1998.05.08"]
[Round "1.2"]
[White "Lusto, Alexey"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2305"]
[BlackElo "2615"]
[Annotator "Psakhis,L"]
[PlyCount "56"]
[EventDate "1998.05.07"]
[EventType "k.o."]
[EventRounds "6"]
[EventCountry "RUS"]
[SourceTitle "CBM 065"]
[Source "ChessBase"]
[SourceDate "1998.08.06"]
[SourceVersion "1"]
[SourceVersionDate "1998.08.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. Nh4 Qa5 $5 {This move gain big popularity
in modern chess practice.} 12. Bb2 (12. Bd2 Ne4 13. Be1 c4 14. Bb1 Qd8 15. g3
Bh3 16. Ng2 f5 17. f3 Nd6 $15 {0-1 Marinelli,T-Sosonko,G/Linares zt 1995 (48)})
(12. Qe1 Re8 13. Bb2 Qd8 14. Nf5 Ne4 15. Ng3 Nxg3 16. hxg3 Bd7 17. f3 Rc8 18.
Qf2 Na5 $13 {1/2-1/2 Milov,V-Gavrikov,V/Biel 1995 (50)}) 12... c4 (12... Re8
13. Re1 (13. Qe1 Bd7 14. f3 Ne7 15. c4 Qxe1 16. Rfxe1 dxc4 17. Bxc4 Ned5 18.
Bxd5 Nxd5 19. e4 Nf4 20. dxc5 Rac8 $44 {1/2-1/2 Sadler,M-Ehlvest,J/Wch
Groningen 1997 (31)}) (13. Qc1 Bd7 14. Nf5 Qc7 15. Ng3 Na5 16. Qd1 Rad8 17. Re1
Ne4 18. Nf1 Bf5 19. f3 Nd6 20. Bxf5 Nxf5 21. Qd3 Nd6 $15 {0-1 Portisch,
L-Beliavsky,A/Amsterdam 1990 (77)}) 13... c4 14. Bc2 Ne4 15. Rc1 Qd8 $1 16. g3
g5 17. Ng2 g4 $15 {0-1 Lautier,J-Kramnik,V/Tilburg 1997 (53)}) 13. Bc2 Re8 {N/}
(13... Ne4 14. Qe1 Qd8 15. f3 Nd2 16. Qxd2 Qxh4 17. e4 $14 {1-0 Lautier,
J-Kramnik,V/Amber blind 1997 (33)}) 14. Qe1 $5 {[%cal Gf2f3,Ge3e4]} (14. Re1
Ne4 15. Rc1 Qd8 $11) 14... Ne7 15. f3 Bd7 16. a4 $8 (16. e4 Ba4 $1) 16... Ng6
17. e4 (17. Nf5 $5 $132) 17... dxe4 (17... Nf4 18. Qd2 g5 $142 $2 19. e5 $16)
18. fxe4 Bc6 {[%cal Ge8e1]} 19. e5 ({Maybe better is} 19. Nxg6 hxg6 20. e5 $14
{with initiative}) 19... Qb6 $6 (19... Qd5 20. Nf3 $14 {[%csl Gb2,Gc2]}) (19...
Nd5 20. Nf5 (20. Nxg6 $5 hxg6 21. Qg3 {[%cal Gf1f7,Gc2g6,Gb2a3]}) 20... Qb6 21.
Qb1 $5 Nxe5 $140 $2 22. a5) 20. Qf2 $5 ({I couldn,t find defense for Black
after simple} 20. Bxg6 $1 {for instance} Qxb2 (20... hxg6 21. Qf2 $18) (20...
fxg6 21. exf6 $1 Rxe1 22. f7+ Kh8 (22... Kf8 23. Ba3+ Re7 24. Rae1 Qc7 25. Re3
$1 $18) 23. Raxe1 Rf8 24. Ba3 Qd8 25. Bxf8 Qxf8 26. Rf3 {[%cal Rh4g6]} Bd7 27.
Re8 $18) 21. Bxf7+ Kxf7 22. Qg3 Qd2 (22... Rad8 23. exf6 g6 (23... gxf6 24.
Rxf6+ Kxf6 25. Rf1+ $18) 24. Nf3 $18) 23. Rad1 $5 Qe2 24. Nf5 $5 (24. exf6 Qe3+
25. Qxe3 Rxe3 26. fxg7+ Kg8) 24... Qxg2+ 25. Qxg2 Bxg2 26. Kxg2 Nd5 27. Ne3+
Ke6 28. Nxd5 Kxd5 29. Rf7 $18) 20... Qxb2 21. exf6 (21. Bxg6 Qxf2+ 22. Rxf2
hxg6 23. exf6 Re3 $17 {[%csl Rc3]}) 21... Qxc3 22. Nf5 $5 (22. fxg7 Qe3 23. Nf5
Qxf2+ 24. Rxf2 Rad8) 22... gxf6 23. Nh6+ Kg7 24. Nf5+ ({Now Lusto could easy
make draw after} 24. Bxg6 $5 hxg6 (24... fxg6 25. Qxf6+ Kxh6 26. Qh4+ Kg7 27.
Qf6+ $11) 25. Qxf6+ Kxh6 26. Qh4+ Kg7 27. Qf6+ Kh7 28. Qxf7+ Kh6 29. Qf4+ g5
30. Qf6+ Kh5 31. Qf7+ Kg4 32. Qf5+ $11) 24... Kh8 25. Rac1 (25. Nd6 Re6 $8 26.
Nxf7+ Kg7 27. Bf5 Qe3 $1 $17) (25. Nh6 Qe3) 25... Qa3 26. Rcd1 (26. Nh6 Qe3 27.
Nxf7+ Kg7 28. Nd6 Qxf2+ 29. Rxf2 Red8 30. Nf5+ $15) 26... Bd7 27. Nh6 Kg7 (
27... Qe7 28. Rde1 $1 $18) 28. Nxf7 $4 (28. Bxg6 $1 fxg6 29. Qxf6+ Kxh6 30.
Qh4+ (30. Rf4 Qe3+ 31. Kh1 Bg4 $1 32. Rxg4 Qe1+ 33. Qf1 Qxf1+ 34. Rxf1 Rad8 $19
) 30... Kg7 31. Qf6+ $11) 28... Qe7 $1 {[%csl Rf7]} 0-1

[Event "George Marx Memorial 4th"]
[Site "Paks"]
[Date "2006.07.28"]
[Round "1"]
[White "Berkes, Ferenc"]
[Black "Almasi, Zoltan"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "2601"]
[BlackElo "2672"]
[Annotator "Szabo,Kr"]
[PlyCount "80"]
[EventDate "2006.07.28"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "HUN"]
[EventCategory "15"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. Qc2 Na5 11. Nd2 Bd7 12. cxd5 exd5 13. dxc5 Qxc5 14. a4
Rfc8 15. Bb2 Nc4 16. Bxc4 dxc4 17. Ba3 $6 (17. e4 Ng4 {/\ Ne5-d3} (17... Re8
18. Ba3 Qc7 19. f3) 18. Nf3 Re8 19. Rfe1 (19. Ba3 Qh5 $15) (19. h3 Ne5 $15)
19... Bc6 20. h3 Ne5 21. Nxe5 Qxe5 22. f3 Rad8 $17 (22... f5)) 17... Qd5 $1 18.
e4 (18. f3 Bxa4 $19) (18. Rfd1 Bf5 19. Qb2 Bd3 $17) 18... Bxa4 19. exd5 (19.
Qxa4 Qxd2 $19) 19... Bxc2 20. d6 Nd5 21. Rfe1 f6 $6 (21... Nxc3 $2 22. d7 Rd8
23. Bb4 Na4 (23... Nd5 24. Rxa7 $44) 24. Ra2 $44) (21... Bd3 $1 22. Nf3 Nxc3
23. Ne5 (23. d7 Rd8 24. Ne5 f6 $19) 23... f6 $19) 22. d7 Rd8 23. Nxc4 Rxd7 24.
Nd6 (24. Ne3 $1 Nxe3 25. Rxe3 Ba4 $17) 24... b6 (24... Nxc3 $5 25. Rac1 Nb1 26.
Rxb1 Bxb1 27. Rxb1 Rad8 28. f4 {(Almasi,I)}) 25. c4 Nf4 26. Re3 (26. g3 Nd3 27.
Re2 Ba4 $17) 26... Rad8 27. g3 Ng6 (27... Nd3 28. Ra2 Nc5 29. Bxc5 bxc5 30.
Rxc2 Rxd6 $17) 28. Rc3 (28. f4 Rxd6 29. Bxd6 Rxd6 30. Rxa7 h5 $19) (28. Ra2 $1
Ba4 29. f4 Bc6 30. Rd2 h5 $17) 28... Ba4 29. c5 bxc5 30. Bxc5 Bc6 31. Kf1 (31.
Ra6 Ne7 32. Rd3 Rb8 33. Rd1 Rb5 $1 34. Ba3 Bb7 35. Rxa7 Nc8 $19) 31... Rxd6 32.
Bxd6 Rxd6 33. Rxa7 Ne5 $19 34. f4 Bb5+ $1 35. Kg1 (35. Kg2 Rd2+ $19) (35. Kf2
Ng4+ 36. Ke1 Re6+ 37. Kd1 (37. Kd2 {(Almasi,I)} Nxh2 38. Rcc7 (38. Rc8+ Be8)
38... Nf3+ 39. Kc2 Rc6+) 37... Nf2+ 38. Kc1 Rc6 39. Rxc6 Bxc6 $19) 35... Rd1+
36. Kf2 Ng4+ 37. Kf3 Nxh2+ 38. Ke4 (38. Kg2 Rd2+ 39. Kh3 h5 40. Rcc7 Nf1 41.
Rxg7+ Kf8 42. Rgf7+ Ke8 43. Rfe7+ Kd8 $19) 38... Rd7 (38... h5 39. Rcc7 Bd3+
40. Kd4 Bf5+ 41. Kc5 Rc1+ $19) 39. Ra2 Ng4 40. Rb2 (40. Kf5 Nh6+ 41. Ke6 Nf7
42. Ra8+ Nd8+ 43. Kf5 Kf7 $19) 40... Bf1 0-1

[Event "World Women-ch k.o."]
[Site "Khanty-Mansiysk"]
[Date "2012.11.21"]
[Round "4.2"]
[White "Ushenina, Anna"]
[Black "Kosintseva, Nadezhda"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2452"]
[BlackElo "2539"]
[Annotator "Ushenina,A"]
[PlyCount "91"]
[EventDate "2012.11.11"]
[EventType "k.o."]
[EventRounds "6"]
[EventCountry "RUS"]
[SourceTitle "CBM 152"]
[Source "ChessBase"]
[SourceDate "2013.01.15"]
[SourceVersion "1"]
[SourceVersionDate "2013.01.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 ({Another main line is} 9... dxc4 10. Bxc4 Qc7) 10. cxd5 exd5
11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 ({Theory holds} 13... Ne4 {for safer (Marin).
}) 14. Qe1 Bh5 ({Here it was possible to exchange on f3:} 14... Bxf3 15. gxf3
Qd7 16. Kh1 Qh3 17. Qd1 Nh5 18. Rg1 {Black has spoiled White's pawn structure
on the kingside, but at the same time White has got two bishops, so it will be
a long game.}) 15. Nh4 {Of course White should hinder the move ...Bg6 with the
exchange of light-squared bishops.} Ng4 16. g3 Bg6 17. Nxg6 hxg6 18. Qd2 ({Here
} 18. e4 {does not promise much:} dxe4 19. Qe2 (19. Bxe4 Nf6 20. f3 Na5 {
and ...Nb3 is coming with a perfect position for Black.}) 19... Nf6 20. Qxc4
Rac8 {with the idea ...b6, ...Na5 and occupation of the c4-square.}) 18... Na5
({The attempt to take the e4-square under control with} 18... f5 {is too slow:}
19. Rae1 Nf6 20. f3 Qd7 21. g4 $1 $36 {Jussupow,A (2655)-Lobron,E (2570)/
Munich 1994}) 19. Rae1 Nf6 (19... Nb3 20. Qd1 Qd7 21. Bxb3 cxb3 22. Qxb3 Rac8
23. Bc1 Nf6 24. f3 Re6 (24... Rc4 $5 {deserves attention:} 25. a5 {for example}
Ra4 $13 26. Bd2 Rxa5 27. c4 dxc4 28. Qxc4 b5 29. Qd3 Ra4) 25. Bd2 Rb6 26. Qc2
Ra6 27. Ra1 Ne8 28. e4 {Del Rio Angelis,S (2487)-Kurajica,B (2532)/Las Palmas
2005/CBM 109 ext (1-0, 54)}) 20. f3 Qc6 (20... Nb3 $142 21. Qd1 (21. Qf2 Qa5 (
21... Qc6 22. a5 $5 Nxa5 23. e4 {[%cal Ge4e5] with good prospects for White on
the kingside and in the centre}) 22. Bb2 ({it does not seem a good idea to
leave the bishop on the a3-f8 diagonal:} 22. Bb4 Qxa4 23. e4 a5 24. Bd6 Re6 25.
Bf4 Qe8 $15) 22... Nd7 {The knight goes on b6 with the idea to take on a4 with
tempo} (22... Qxa4 23. e4) 23. e4 Nb6 {with good play for Black.}) 21... Qa5
22. Bb4 (22. Bxb3 Qxc3 $1 $15) 22... Qxa4 {Black has won a pawn and in
addition the bishop on b4 will be attacked soon.} 23. e4 a5 24. Bd6 Re6 25. Be5
Qd7 (25... dxe4 $1 26. Bxf6 (26. fxe4 Qb5 $15 {Black's idea is just to push
the a-pawn}) 26... gxf6 27. Rxe4 Raa6 $1 $15) 26. Bxf6 Rxf6 27. e5 Rb6 28. f4
f5 29. exf6 Rxf6 30. Bxb3 cxb3 31. Qxb3 a4 32. Qb4 b6 33. Re5 Re6 34. Ra1 Kh7
35. f5 gxf5 36. Rxf5 Rae8 37. Re5 Rxe5 38. dxe5 Rxe5 39. Qxa4 Qxa4 40. Rxa4 Re3
{1/2 Gelfand,B (2741)-Eljanov,P (2751)/Astrakhan 2010/CBM 137}) 21. Qg2 ({
Instead} 21. Qd1 $5 {deserves serious attention:} b6 (21... Nb3 22. Bxb3 cxb3
23. Qxb3 b6 24. g4 $13) 22. e4 Nb3 (22... dxe4 $2 23. fxe4 $16 Nxe4 $2 24. d5
$18) 23. e5 Qxa4 24. Bc1 $14 {and next f4.}) 21... Nb3 22. e4 Qxa4 23. Bb2 (23.
Bd6 $6 Re6 24. Be5 (24. e5 Ne8 25. f4 Nxd6 26. exd6 Rxe1 27. Rxe1 Qc6 $15)
24... Qa5 25. Bxb3 (25. exd5 Qxd5 {[%cal Ga8e8] It is hard to say where
White's compensation for the pawn may be.} (25... Nxd5 $6 26. f4 Rae8 (26...
Nxc3 27. f5 gxf5 28. Bxf5 Rxe5 29. dxe5 Qb6+ 30. Kh1 Nd4 31. e6 Nxe6 32. Bxe6
fxe6 33. Qf3 Qc6 34. Qxc6 bxc6 35. Rf4 $16) 27. f5 gxf5 28. Bxf5 $14)) 25...
cxb3 26. Qb2 Qb5 $15) 23... Qb5 24. Bb1 (24. e5 $5 Nd7 25. Ba3 Qa5 (25... Qa4
26. Bd6 Qa5 27. Re3 {[%cal Gf3f4]}) 26. Bb4 Qb6 27. Bd6 Rad8 28. f4 Nf6 29. f5
$44) 24... dxe4 (24... Nd7 {[%cal Gd7b6,Gb6a4] too slow a try to exchange one
of White's bishops after the manoeuvre Nb6-a4} 25. e5 Nb6 (25... Qc6 26. f4 {
[%cal Gf4f5]}) 26. f4 Na4 27. f5 $1 {with attack} gxf5 (27... Nxb2 28. fxg6 $18
) (27... g5 28. f6) 28. Bxf5 Nxd4 (28... Nxb2 29. Qh3 $1) (28... g6 29. e6 gxf5
30. Rxf5 Rxe6 31. Rxe6 fxe6 32. Rg5+ Kf7 33. Qf2+ Ke7 34. Rg7+ Kd6 35. Qf4+ Kc6
36. Qc7#) 29. cxd4 Qxb2 30. Qxd5 Nb6 31. Qe4 $18) (24... a5 25. e5 Nd7 26. f4
Qc6 27. f5 b5 28. e6 $16) 25. fxe4 Re6 {Too slow.} ({Instead the prophylactic} 
25... Qc6 $5 {(for preventing e4-e5) deserves serious attention:} 26. g4 b5 27.
g5 Nh5 {with mutual chances.}) 26. Re2 ({Much better is the immediate} 26. e5
$1 Rae8 (26... Nd5 27. Re4 {White can play actively againt Black's king!} Rae8
28. Qh3 f5 29. Rh4 Rxe5 (29... Ne3 30. Ba3 Nxf1 31. Bxf5 $16) 30. dxe5 Qc5+ 31.
Kh1 Rxe5 32. Bxf5 gxf5 33. Rxf5 Re1+ 34. Rf1 $16) 27. Re2 Nd5 (27... Qb6 {
with the idea to take on e5} 28. Qf2 Qc7 29. Qf4 {[%cal Ge2f2]} Nd5 30. Qf3 {
[%cal Gb1e4] White is better}) 28. Qf3 Qd7 29. Be4 {with initiative.}) 26...
Rae8 (26... Qc6 $5 {against e4-e5} 27. Qf2 Qd7 28. e5 Nd5 29. g4 (29. Be4 Rb6
30. Qf3 Rd8 31. h4 f5 32. Bxd5+ Qxd5 33. Qxd5+ Rxd5 34. g4 Re6 35. gxf5 gxf5
36. Rxf5 b5 {[%cal Ga7a5]} 37. Rg5 {White is somewhat better}) 29... Rb6 30.
Qf3 {[%cal Ge2f2]}) 27. e5 Nd5 (27... Qc6 28. Qh3 Nd5 29. Ref2 R8e7 30. Be4 $14
) 28. Qf3 f5 (28... R8e7 29. Ref2 {[%cal Gb1e4]}) 29. g4 (29. exf6 $2 Nxf6 30.
Rxe6 Rxe6 31. Bxg6 Nd2 32. Qf5 Qxf5 33. Rxf5 Ra6 34. Rc5 Nd7 35. Rc7 Rxg6 36.
Rxd7 Rb6 37. Ba3 Ne4 $15) 29... f4 30. Be4 Rd8 (30... Ne3 $2 31. Rxe3 fxe3 (
31... Nd2 32. Qxf4 Nxf1 33. Rf3 $1 $18) 32. Qf7+ Kh7 33. Rf3 $18) 31. Bxd5 Qxd5
32. Qxf4 $18 Qd7 33. Ba3 Ra6 34. Bb4 Qe6 35. Qe4 b5 36. Ref2 Ra1 37. Rxa1 Nxa1
38. Ra2 Nb3 39. Rxa7 Nc1 40. Re7 Qa6 41. Qf3 Kh8 (41... Rf8 42. Rxg7+ Kxg7 43.
Qxf8+ $18) 42. Qf7 Rg8 43. Ra7 Qc8 44. Qxg6 Ne2+ 45. Kf1 Nf4 46. Qg5 1-0

[Event "MK Cafe Cup-A"]
[Site "Koszalin"]
[Date "1999.08.08"]
[Round "6"]
[White "Lesiege, Alexandre"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2553"]
[BlackElo "2657"]
[Annotator "Wells,P"]
[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 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. Nh4 {[%csl Yf5][%cal Yh4f5]} Qa5 $5 {
[%csl Rc3][%cal Rc1b2,Rc1d2,Yf6e4,Yc5c4] This interesting counter-attacking
alternative already has a strong claim to be regarded as the main line
compared to the older move} (11... Ne7 {[%csl Gf5][%cal Ge7f5] The point is
that white has no way to defend the c3 pawn which is entirely convenient.}) 12.
Bd2 (12. Bb2 Re8 $5 (12... c4 13. Bc2 Ne4 14. Qe1 Qd8 15. f3 Nd2 16. Qxd2 Qxh4
17. e4 Be6 18. Rae1 f5 19. a4 fxe4 20. Ba3 Rf7 21. fxe4 Qh5 22. Rxf7 Bxf7 23.
Rf1 dxe4 24. Bxe4 Re8 25. Qf4 Nd8 26. Bf5 Qe2 27. Qh4 h5 28. Bc1 Bd5 29. Qg3
Rf8 30. Qg6 Rxf5 31. Rxf5 Qe4 32. Rf6 Qe1+ 33. Rf1 Qe2 34. Qg5 {1-0 Lautier,
J-Kramnik,V/Monte Carlo 1997/CBM 57 ext (34)}) 13. Nf5 c4 14. Bc2) 12... c4 $6
{Given that white's novelty on move 14 seems to represent a genuinely
interesting and new approach to the position it may well be that} (12... Ne4
13. f3 (13. Bxe4 $6 dxe4 14. c4 $2 Qd8 {[%csl Rd4,Rh4] is certainly not the
way!}) (13. Be1 c4 14. Bxe4 dxe4 15. f3 Qg5 (15... g5 16. fxe4 gxh4 17. Bxh4))
13... Nxd2 14. Qxd2 cxd4 15. exd4 Nxd4 16. Bxh7+ Kxh7 17. Qxd4 g5) 13. Bc2 Ne4
14. f3 $5 $146 Nxd2 15. Qxd2 Qd8 16. g3 Bh3 17. Rfb1 Rb8 18. a4 a6 19. Rb2 Re8
20. Rab1 Na5 21. Qf2 Bd7 22. e4 Nb3 23. e5 Bxa4 24. f4 b5 25. Ra2 Na5 26. Bxa4
bxa4 27. Rba1 Qd7 28. f5 Rb6 29. Rxa4 Nc6 30. Rxa6 Rb3 31. Qe3 Rb2 32. R6a2 Qb7
33. Rxb2 Qxb2 34. Re1 f6 35. Qf3 Kh8 36. Qh5 Qb8 37. e6 Qa8 38. Ng6+ Kg8 39.
Nf4 Ne7 40. Qf3 Kh8 41. Qh5 1-0

[Event "St Petersburg-ch"]
[Site "St Petersburg"]
[Date "2002.04.24"]
[Round "8"]
[White "Klimov, Sergey"]
[Black "Lugovoi, Aleksei"]
[Result "1-0"]
[ECO "E58"]
[WhiteElo "2433"]
[BlackElo "2510"]
[Annotator "Wells,P"]
[PlyCount "65"]
[EventDate "2002.04.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[EventCategory "9"]
[SourceTitle "CBM 089"]
[Source "ChessBase"]
[SourceDate "2002.08.12"]
[SourceVersion "1"]
[SourceVersionDate "2002.08.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Bg4 {[%cal Gg4f3,
Gg4h5,Gh5g6] To my mind logic dictates that if white's simple side-stepping
queen move can be proven satisfactory ( and the game continuation is probably
quite a critical test of this claim ) then this pin should be viewed with
suspicion. I have always believed that black should pursue his light-square
strategy here with rigorous consistency , and, since the alternative
justification for the bishop move, namely the manouevre ...Bh5-g6 seems to be
found wanting, I would suggest the main alternative 13...Ne4. However, the
effect of exchanging on f3 on the light squares is worthy of brief comment. In
a sense it weakens g2, but ( with the rather crucial proviso that white will
not be mated! ) the most crucial white square is after all e4. Here too the
impact of the exchange should not be oversimplified. Of course on one level
the move gxf3 significantly strengthens white's hold on the centre. However,
white would also in an ideal world like to play his pawn to e4, and in this
regard the exchange ensures that such a central push will have major drawbacks
( just ask the f4 square! ).} (13... Ne4 $5 14. Bxe4 (14. Qe1 {gains less than
nothing against the accurate} Qd8 $1 {forestalling progress with Nh4 and f3,} {
when white probably has nothing better than reverting back to strategy 'a' with
} 15. Bxe4 ({the problem being} 15. Nd2 Nxc3 $1 16. Bb2 (16. Nxc4 Nxd4 $17)
16... Nxd4 17. Bd1 $5 Nxd1 (17... Nc6 18. Bxc3 d4 19. Nxc4 dxc3 20. Qxc3 Be6
$11) 18. Bxd4 c3 19. Nf3 c2 $15) 15... Rxe4 16. Nd2 Re8 {and white's queen
simply stands a little worse than it does in the main line.}) 14... Rxe4 15.
Nd2 Re8 (15... Rh4 {has been played by some strong players, but I can't help
feeling that black's off-side rook counts for more than the slight weakening
of white's king-side which g3 represents.} 16. g3 Rh6 17. e4 Qa5 $6 (17... Be6
{is rather better, but if the bishop plays this passive role then it would
seem to confirm that playing g3 is scarcely a problem.}) 18. Re1 Be6 19. Re3
dxe4 20. Nxe4 Qh5 21. h4 Bd5 22. Qxh5 Rxh5 23. Rb1 h6 24. Nd6 $16 {Kamsky,G 
(2735)-Almasi,Z (2630) Groningen 1995 (10) 1-0}) 16. e4 Be6 (16... dxe4 $5 17.
Re1 {The best way.} (17. Nxc4 Nb4 $1 {offers white nothing.}) 17... Bf5 (17...
Be6 18. Nxe4 Bd5 19. Nd6 Rxe1+ 20. Qxe1 $14 {[%csl Yd4,Ye3][%cal Gd6e8,Gd6b5,
Yd6f5,Yf5e3,Yd4d5] also looks an edge. At worst, white's knight can head back
to the useful f3 square.}) 18. Nxc4 Rad8 19. Ne3 Bc8 20. Qh5 Qa5 21. Qxa5 Nxa5
22. d5 b6 23. Bb4 Nb7 24. a5 f5 25. axb6 axb6 26. Ra7 b5 27. g3 $14 {1/2-1/2
Lautier,J-Kramnik,V/Monte Carlo 1998/CBM 63 ext (42)}) 17. Qf3 (17. Re1 Qa5 $5
(17... Ne7 18. Bxe7 $5 {[%csl Ye3,Ge6][%cal Yd2f1,Yf1e3] given that white
wants to avoid the move e5 and aim to give his 'potentially passed'; d-pawn
the best chance of mobility, this is often a useful exchange. The knight will
be strong on e3, and black's bishop on e6 no longer looks like an asset.} Rxe7
19. Nf1 dxe4 20. Rxe4 Bf5 21. Rxe7 Qxe7 22. Ne3 Bd3 23. a5 Rc8 24. Qf3 h6 25.
h3 Qd7 26. Ng4 f6 27. Re1 Rc6 28. Qf4 Kh7 29. Qb8 Re6 30. Rxe6 Qxe6 31. Ne3 $16
{1-0 Giorgadze,G-Arlandi,E/San Marino 1998/EXT 2002 (43) something like
black's nightmare endgame.}) 18. exd5 Bxd5 19. Qc2 g6 20. f3 (20. Nf1 $2 Rxe1
21. Rxe1 Nxd4) 20... b5 21. axb5 Rxe1+ 22. Rxe1 Nxd4 23. cxd4 Qxa3 24. Ne4 Bxe4
25. Qxe4 $11 {1/2-1/2 Gligoric,S-Milovanovic,R/Ulcinj 1998/EXT 99 (36)}) (17.
e5 {doesn't look too dangerous in view of} Bf5 {The players simply exchange
strong bishop outposts, and secure a still stronger grip on 'their' square
colours.}) 17... Qa5 18. Bc5 $5 {an interesting way to pressure d5.} Rad8 19.
Rfb1 dxe4 20. Qg3 $1 (20. Nxe4 Bd5) 20... Bd5 21. Rb5 Qa6 22. Nf1 {It is
hugely instructive if it can be proved that white has full compensation here.
Black is surprisingly vulnerable on the dark squares.} Na5 23. Ne3 Nb3 (23...
Be6 24. d5 Bd7 25. Bd4 $40) 24. Re1 Be6 25. Bb4 Qxa4 (25... f6 $5) 26. Rxb7 Rd7
27. Rb8 Rdd8 28. Rxd8 Rxd8 29. Be7 $1 Rc8 30. Bf6 g6 31. d5 Bd7 32. Qf4 Qa6 33.
d6 Nc5 34. Qh6 Ne6 35. Nd5 {1-0 Babula,V-Arlandi,E/Portoroz 1998/EXT 99 (35)})
14. Qe1 Bxf3 {I think it is fair to say that this was not the original idea
behind 13...Bg4. However, the very plausible plan of ...Bh5-g6 has tended to
run into difficulties.} (14... Qd7 15. Nh4 Bh5 (15... g5 16. f3 Be6 17. Qg3 h6
18. f4 Nh5 19. Qf2 gxh4 20. f5 $14 {is a fairly typical 'tactical
justification' for lines involving the very direct Nh4 and f3.}) 16. Bf5 Qc7
17. f3 g5 18. g4 Bg6 19. Nxg6 hxg6 20. Bb1 Kg7 21. Ra2 Rh8 22. Raf2 Nd8 23. Rg2
Ne6 24. Bc1 Rh4 25. Qe2 Re8 26. Qc2 Reh8 27. Rff2 Re8 28. Bd2 {white's bishops
have periods of apparent passivity, but in the long term white has useful
breaks, while black can do little to modify the structure.} b6 29. Qd1 Rh3 30.
Bc2 a6 31. Be1 {[%cal Ge1g3,Gg3e5]} b5 32. Rf1 Qb6 33. Bg3 Nf8 34. Rgf2 Re7 35.
Kg2 Rh8 36. e4 Ne6 37. Qd2 {1-0 Babula,V-Lauber,A/BL9697 Werder-Delmenhorst
1997/BL9697/[Wells] (37)}) (14... Bh5 15. Nh4 Ng4 16. g3 Bg6 17. Nxg6 hxg6 18.
Qd2 $1 f5 (18... Re6 19. e4 $1) 19. Rae1 Nf6 20. f3 Qd7 21. g4 fxg4 22. Bxg6
$16 {1-0 Jussupow,A-Lobron,E/Munich 1994/CBM 42 (57) and white's bishops have
excellent marauding prospects.}) 15. gxf3 Qd7 {In a strict sense, this very
natural move might be seen as a novelty as the only previous game with this
position was agreed drawn here!} 16. Kg2 Ne4 17. Rh1 $1 {useful prophylaxis.}
Ng5 18. h4 Ne6 19. Qb1 h6 20. Qg1 {Again the argument is a long-term one. I
like white's solid but not inflexible structure, and the attackinh chances
which the bishop pair and g-file imply.In the short term though, black can use
some queen-side squares to make waves.} Na5 21. Kh2 Nb3 22. Ra2 Qxa4 23. Qg4
$44 Qa5 (23... Qd7 $5) 24. Rg1 Qd8 $6 {seems to simply lose a tempo.} (24...
Qc7+ {looks better, although the flow of the play is similar.} 25. f4 Nd2 26.
Kh1 $16) 25. f4 Qc7 26. Kh1 g6 27. f5 Ng7 28. f6 {now its carnage!} Nd2 29.
Bxg6 fxg6 30. Rxd2 g5 31. hxg5 Re4 32. f4 Rxe3 33. gxh6 1-0

