[Event "EU-ch 13th"]
[Site "Plovdiv"]
[Date "2012.03.31"]
[Round "11"]
[White "Kryvoruchko, Yuriy"]
[Black "Caruana, Fabiano"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2666"]
[BlackElo "2767"]
[Annotator "Ftacnik,L"]
[PlyCount "107"]
[EventDate "2012.03.20"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "CBM 148"]
[Source "ChessBase"]
[SourceDate "2012.05.16"]
[SourceVersion "1"]
[SourceVersionDate "2012.05.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 {The Arkhangelsk
Variation has become so widespread that we tend to forget its nature: it is
tainted with danger. Black simply has to know his theory, otherwise he can
easily hit problems at an early stage.} 7. a4 Rb8 8. c3 d6 9. d4 Bb6 10. Na3
O-O 11. axb5 axb5 12. Nxb5 Bg4 13. Bc2 exd4 14. Nbxd4 {The battle on the board
will be fought in one of the main lines. Tempting as it is, the recapture with
a pawn on d4 is an idea which has not caught on in praxis. Black has enough
resources to equalise without too much strain.} (14. cxd4 d5 (14... Re8 15. Ra4
Qd7 16. Qd3 Rxe4 (16... Ba5 $5) 17. Bg5 Bf5 18. Bxf6 gxf6 19. Nc3 Rf4 20. Qd2
Bxc2 21. Qxf4 Bxa4 22. Nd5 $14 {Kunte,A-Ganguly,S/Calcutta 2001}) 15. e5 (15.
Bg5 Bxf3 16. Qxf3 Bxd4 (16... dxe4 17. Bxe4 Nxd4 18. Nxd4 Qxd4 19. Bc2 h6 20.
Bxf6 Qxf6 21. Qxf6 gxf6 22. Rfd1 Rfd8 23. Rxd8+ {1/2-1/2 Harikrishna,P (2551)
-Ganguly,S (2531)/Goa 2002}) 17. exd5 Qxd5 18. Qxd5 {1/2-1/2 Almasi,Z (2650)
-Piket,J (2605)/Groningen 1998}) 15... Ne4 16. Be3 f6 17. h3 Bh5 18. e6 Re8 19.
Nc3 Nxc3 20. bxc3 Rxe6 21. Bf5 $14 {1/2-1/2 Morozevich,A (2590)-Georgiev,K 
(2675)/Germany 1998 (63)}) 14... Nxd4 15. cxd4 Bxf3 16. gxf3 Nh5 17. Kh1 Qf6
18. Be3 Ra8 {The second important moment with alternative options for Black.
The fight for the open a-file is important as Black will build his
compensation on a collection of small pluses.} (18... Nf4 19. Ra4 $1 (19. Qd2
$2 Ne6 $15) (19. Rg1 g6 20. Ra4 Ne6 21. f4 Ra8 22. e5 dxe5 23. dxe5 Qd8 24.
Qxd8 Rfxd8 25. Rxa8 Rxa8 26. f5 Bxe3 27. fxe3 Nf8 $11 {1/2 (39) Berbatov,K 
(2481)-Lenic,L (2603) Rijeka 2010}) 19... Ra8 20. Rb4 Ne6 $6 (20... Ra1 $5 21.
Qxa1 Nd3 22. Bd1 (22. Bxd3 Qxf3+ $11) 22... Nxb4 23. Qa4 c5 24. Rg1 $14) 21.
Rg1 Rfb8 22. f4 $1 $16 c5 (22... Nxf4 $2 23. e5 Qh6 24. Rxb6 Rxb6 25. Qf3 $18)
23. e5 Qd8 (23... Qh4 24. dxc5 Bxc5 25. Rxb8+ Rxb8 26. Rg4 Qh3 27. f5 Bxe3 28.
fxe6 Bc5 29. b4 $1 $18) 24. dxc5 Bxc5 (24... dxc5 $1 25. Rc4 $16) 25. Rxb8 Rxb8
26. f5 $18 {1-0 (33) Adams,M (2737)-Leko,P (2763) Miskolc 2005}) (18... c5 $5
19. e5 $1 Qe6 (19... dxe5 20. dxc5 Rfd8 21. Qe2 Bc7 22. Be4 $16) 20. exd6 c4
21. Rg1 $14) 19. Rxa8 Rxa8 20. Rg1 {White players have already tried different
ideas in order to shake the enemy from the chosen path. Defenders have been
able to meet all the challenges with flying colours.} (20. f4 Nxf4 21. e5 dxe5
22. Qf3 Qd8 23. dxe5 Ng6 24. Bxb6 cxb6 25. Qe4 $11 {1/2 (34) Szabo,K (2492)
-Pavasovic,D (2597) Hungary 2008/}) 20... Nf4 21. Bb3 g6 (21... Ne6 22. Bxe6
fxe6 23. Rg3 Kh8 24. Kg2 e5 25. dxe5 dxe5 26. Bxb6 cxb6 27. Qd7 $14 {1-0 (66)
Karjakin,S (2732)-Adams,M (2729) Baku 2008}) 22. e5 $1 $146 {[%mdl 8] In games
with very strong players it makes sense to shake them with unexpected and
dangerous ideas. Kryvoruchko is using the fruits of his excellent preparation:
suddenly Black is suffering along the a2-g8 diagonal.} (22. Rg4 Ne6 23. Bxe6
Qxe6 24. Rg1 Ra2 25. Qd2 Qh3 26. Qe2 Rxb2 27. Qxb2 Qxf3+ $11 {1/2 (29)
Alekseev,E (2715)-Caruana,F (2652) Khanty-Mansiysk 2009}) 22... dxe5 (22... Qf5
$2 23. Bc2 $18) 23. dxe5 Qf5 (23... Qxe5 24. Bxf7+ $1 Kxf7 25. Bxf4 Qb5 26. Rg5
Qc4 27. Rg4 Bxf2 28. Kg2 $14) 24. Bxf7+ $1 Kg7 $6 {Even majestic trees will
bend under very strong wind, Caruana finds it difficult to sniff out the best
defence.} (24... Kxf7 25. Bxf4 Bxf2 26. Qd5+ Kg7 27. Rd1 Rf8 28. Qd7+ Kg8 29.
Qxf5 Rxf5 30. e6 Kf8 31. Bxc7 Bc5 $14) (24... Qxf7 $5 25. Bxf4 Bxf2 26. Rf1 Bb6
27. Qd3 c6 28. Be3 $14) 25. Bd5 $6 {White is spoiling the impact of his
surprise by willingly parting with his strong light squared bishop. It is true
that it could have died in many variations, but in this position it was
precious and should have been saved.} (25. Bb3 $1 Nh3 26. Rg2 Rf8 (26... Bxe3
27. fxe3 Qxe5 28. Qd7+ Kh8 29. Bd1 Ra1 30. Rc2 $16) 27. e6 Bxe3 28. fxe3 Qxf3
29. Qxf3 Rxf3 30. Re2 Rf5 31. Kg2 Ng5 32. Rc2 $16) 25... Nxd5 26. Qxd5 Ra5 27.
Qc6 Rxe5 {Black is not ready to make a concession and fight against White's
improved pawn structure.} (27... Bxe3 28. Qf6+ (28. fxe3 Rxe5 29. Qxc7+ Kh6 30.
Rf1 Rxe3 31. Qc1 Qg5 $11) 28... Qxf6 29. exf6+ Kxf6 30. fxe3 Rf5 31. Rf1 Rb5
32. Rf2 Rb3 33. Re2 $14) 28. Bxb6 cxb6 29. Qc3 Qf6 30. Rd1 {The position on
the board is undeniably better for White, but his advantage verges on the
small. Doubled f-pawns are not easy to convert into something real.} Kh6 (30...
Re7 31. Rd4 h6 32. f4 $14) 31. Rd4 Re7 (31... Rc5 32. Qd2+ Qg5 33. f4 Qf5 34.
Qe3 $14) 32. Kg2 Rf7 33. Qe3+ Kg7 34. Rb4 Rb7 35. h4 (35. b3 Qd6 36. Re4 $14)
35... h5 36. b3 Rf7 37. Re4 (37. Rxb6 Qxh4 38. b4 Qf4 39. b5 Rf5 40. Qxf4 Rxf4
41. Rb8 $14) 37... b5 38. Rd4 Re7 {Black his holding the situation, but can
never really improve his position.} 39. Qd3 Rf7 40. Rd6 Qf5 41. Qd4+ (41. Qxf5
Rxf5 $11) 41... Kh6 $2 {The defence is a tiring and an ungratefull task, so it
is understandable that Black can make a mistake. Why it happened right after
the time control in a slightly strange manner remains a small mystery. It was
much more natural to step aside to h7.} (41... Kh7 42. Qe4 Qxe4 43. fxe4 Rf4
44. f3 Rxh4 45. Rd5 $14) 42. Qh8+ Rh7 43. Qc3 Rf7 (43... Qf4 44. Rd4 Rc7 45.
Qd3 Qf5 46. Qxf5 gxf5 47. Rd5 $16) 44. Rb6 Rg7 $6 {The second mistake
aggravates the misery and Black will find himself in a hopeless position.} (
44... Rf8 45. Qc6 $1 Rc8 46. Qb7 $16) 45. Qc6 Qf4 46. Qe4 $1 Qc7 (46... Qxe4
47. fxe4 $18) 47. Rxb5 {Black has nothing to claim in terms of compensation
for the two pawn deficit.} Re7 48. Qd4 Kh7 49. Rd5 Qb7 50. b4 Rf7 51. b5 Qc7
52. Rd8 Rg7 53. Qf6 Qc5 54. Qc6 (54. b6 g5 55. b7 $18) (54. Qc6 Qf5 55. Qe8 Kh6
56. Qh8+ Rh7 57. Qd4 $18) 1-0

[Event "FIDE World Cup"]
[Site "Tromsoe"]
[Date "2013.08.16"]
[Round "2.4"]
[White "Kryvoruchko, Yuriy"]
[Black "Adams, Michael"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "2678"]
[BlackElo "2740"]
[PlyCount "137"]
[EventDate "2013.08.11"]
[EventType "k.o."]
[EventRounds "7"]
[EventCountry "NOR"]
[SourceTitle "CBM 156"]
[Source "ChessBase"]
[SourceDate "2013.09.17"]
[SourceVersion "1"]
[SourceVersionDate "2013.09.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Bc4 Bc5 6. O-O d6 7. Nxd4 Bxd4 8.
d3 O-O 9. h3 Be6 10. Bb3 h6 11. Qf3 Bxc3 12. bxc3 c5 13. Bxe6 fxe6 14. c4 Qd7
15. a4 Rf7 16. a5 Kh7 17. Qe2 Ng8 18. Bd2 Ne7 19. g3 Raf8 20. Kg2 Nc6 21. Bc3
Qd8 22. Qg4 Rf6 23. Qh5 R6f7 24. Qe2 Qc7 25. Qg4 Rf6 26. Qe2 R6f7 27. h4 Qd8
28. Qg4 Qe8 29. Rab1 Kg8 30. f4 exf4 31. gxf4 Nd4 32. Bxd4 cxd4 33. Rb5 Kh8 34.
Rf2 Rf6 35. Kh2 Qf7 36. h5 Qc7 37. Kh3 R8f7 38. Kg3 a6 39. Rb6 Qc5 40. Kh2 Rd7
41. Rg2 Rdf7 42. Rf2 Kh7 43. Kh3 Qxa5 44. Rxd6 Qe1 45. Kg2 Qxf2+ 46. Kxf2 Rxf4+
47. Qxf4 Rxf4+ 48. Kg3 e5 49. Rd7 Kg8 50. Rxb7 Rf7 51. Rb4 Rf6 52. Ra4 Kf7 53.
Ra5 Re6 54. Kg4 Kf6 55. Rd5 Rc6 56. Rd8 Rb6 57. Ra8 Ke6 58. Ra7 Kf6 59. Rc7 Re6
60. c5 Re8 61. Ra7 Re6 62. Rb7 a5 63. Ra7 Rc6 64. Rxa5 g5 65. Rb5 Ke6 66. Rb6
Kd7 67. Kf5 Rxc5 68. Rxh6 Rxc2 69. Kxe5 1-0

[Event "POL-chT 70th"]
[Site "Gorzow Wielkopolski"]
[Date "2014.05.17"]
[Round "2.1"]
[White "Kryvoruchko, Yuriy"]
[Black "Wojtaszek, Radoslaw"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2703"]
[BlackElo "2724"]
[PlyCount "67"]
[EventDate "2014.05.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]
[WhiteTeam "Gorzow Welkopolski"]
[BlackTeam "Katowice"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 Ne7 7. dxc5 Nd7 8. Na3
Be4 9. O-O Nc6 10. Nb5 Bxf3 11. Bxf3 Ndxe5 12. Be2 Be7 13. c4 Nxc4 14. Bxc4
dxc4 15. Qa4 O-O 16. Rfd1 Qa5 17. Qxc4 Rfd8 18. a3 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+
Qxd8 21. Nc3 Bf6 22. h3 Qa5 23. Bd2 Bd4 24. Ne4 Qc7 25. b4 Qe5 26. Nd6 Qh5 27.
Be3 Be5 28. Qd3 f5 29. b5 Ne7 30. Nxb7 Nd5 31. c6 Nxe3 32. fxe3 h6 33. Nd6 Qh4
34. c7 1-0

[Event "EU-Cup 31st"]
[Site "Skopje"]
[Date "2015.10.23"]
[Round "6.5"]
[White "Kryvoruchko, Yuriy"]
[Black "Wang, Yue"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2710"]
[BlackElo "2724"]
[Annotator "Mokal,P"]
[PlyCount "83"]
[EventDate "2015.10.18"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "MKD"]
[SourceTitle "CBM 169"]
[Source "ChessBase"]
[SourceDate "2015.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2015.11.10"]
[SourceQuality "1"]
[WhiteTeam "Alkaloid"]
[BlackTeam "Siberia"]
[WhiteTeamCountry "MKD"]
[BlackTeamCountry "RUS"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8.
Nc3 ({The Classical line of the Petroff has similarities with the P-structure
that the variation in the game brings about. For example} 8. c4 Nb4 9. Be2 O-O
10. Nc3 Bf5 11. a3 Nxc3 12. bxc3 Nc6 13. Re1 Re8 14. cxd5 Qxd5 {[%csl Ga3,Ga7,
Gb7,Gc3,Gc7,Gd4] .}) 8... Bf5 (8... Nxc3 9. bxc3 Bg4 {is another popular way
of handling this position.}) 9. Re1 Nxc3 10. bxc3 Bxd3 11. Qxd3 O-O 12. c4 dxc4
13. Qxc4 {[%csl Ga2,Ga7,Gb7,Gc2,Gc7,Gd4] We have reached the structure that
was mentioned in the above 8.c4 variation.} Bf6 14. c3 {[%cal Gc3d4]} ({
The game Shirov - Gashimov, 2009 reached the position after} 14. Ba3 {from a
different move order. It went -} Re8 15. Rxe8+ Qxe8 16. Re1 Qd7 17. c3 h6 18.
h3 Na5 {[%csl Rc7][%cal Gc1f4,Gf4c7,Gc1a3,Rc6a5] This is the difference from
the main game. With the B on a3 putting no pressure on the c7-P, Black easily
manoeuvres his N.} 19. Qd3 Rd8 20. Nd2 Qa4 $132 {0-1 Shirov,A (2745)-Gashimov,
V (2730)/Poikovsky 2009/CBM 131 (55)}) ({White had no time for} 14. Bf4 {
because of} Nxd4 15. Rad1 Nxf3+ 16. gxf3 Qc8 17. Qxc7 b6 $15 {[%csl Ra2,Rc2]})
14... Qd7 {An interesting decision, to allow White to tie down the c6-N.} ({
In some previous games, Black had used the opportunity to immediately play} 
14... Na5 {. Although it does not equalise completely, Black's play becomes
easier.} 15. Qa4 (15. Qb4 b6 16. Bf4 Qd7 17. Qb1 Rad8 18. h3 h6 {½-½
Mulligan,B (2276)-Weber,J (2268)/ICCF 2015/ICCF 2015.07}) 15... b6 (15... c6 $5
) 16. Bf4 c6 17. Be5 Re8 18. h3 Bxe5 19. Nxe5 Qd6 20. Re3 f6 21. Ng4 Rxe3 22.
Nxe3 Qe6 $11 {0-1 Gavrilov,A (2481)-Handke,F (2513)/Stockholm 2010/CBM 134
Extra (99)}) 15. Bf4 {[%csl Rc7]} Rfe8 16. Rab1 (16. h3 h6 17. Nh2 Qf5 18. Bg3
h5 19. Nf1 Qa5 20. Rxe8+ Rxe8 21. Rb1 Qf5 22. Rxb7 Na5 23. Qb5 {1-0
Pourramezanali,A (2455)-Mikheev,S (2259)/Baku 2013/CBM 156 Extra}) 16... b6 17.
a4 $146 ({In an earlier game, there was a premature draw after} 17. Qb5 a6 18.
Rxe8+ Qxe8 19. Qf5 {1/2-1/2 Bartlett,S (1800)-Wheeler,J (2016)/Torquay 2006/
EXT 2008}) 17... h6 ({Black could have taken the opportunity to free himself
with} 17... Na5 $142 18. Qxc7 (18. Rxe8+ Rxe8 19. Qxc7 Qxc7 20. Bxc7 Rc8 21.
Bf4 Rxc3 22. Bd2 Rb3 23. Rc1 h5 $11) (18. Qb5 c6 $11) 18... Qxc7 19. Bxc7 Rec8
20. Be5 Rxc3 21. Bxf6 gxf6 22. Re7 Rc4 $11) 18. Qb5 Rxe1+ (18... a6 19. Rxe8+
Qxe8 20. Qc4 {[%cal Gc4c7,Gc4a6]} Qd7 21. Re1 $14) 19. Rxe1 Rd8 ({After} 19...
Rc8 {White can maintain a slight pull in different ways. One of them is} 20. d5
Qg4 (20... Nb8 21. Qc4 c6 (21... c5 22. h3 $14) 22. Bxb8 Rxb8 (22... cxd5 23.
Qf4 $16) 23. dxc6 Qd6 24. Nd4 $14) 21. Bg3 Na5 (21... Bxc3 22. h3 (22. Qxc6
Bxe1 23. Nxe1 Rd8 {[%csl Rd5,Re1][%cal Gg4e2,Ge2d1,Gg4d7,Gd7d5]} 24. Qxc7 Rxd5
25. Qxa7 Qe2 26. f3 Rd1 27. Qb8+ Kh7 28. h3 $11)) 22. h3 Qf5 (22... Qc4 23.
Re8+ Rxe8 24. Qxe8+ Kh7 25. Qxf7 $16) 23. Kh2 Bxc3 24. Rc1 Bf6 25. Rxc7 Rxc7
26. Bxc7 $14) 20. h3 Ne7 ({Another option was} 20... Na5 $5 21. Qxd7 (21. Ne5
$5 Qxb5 22. axb5 Bxe5 23. Rxe5 (23. Bxe5 c6 24. bxc6 Nxc6 $11) 23... Nc4 24.
Re7 Na3 $11) 21... Rxd7 22. Re8+ Kh7 23. Rc8 {Although the position seems
clearly favourable for White at first glance, Black does have a resource in} c6
{[%cal Gb6b5] /\...b5.} 24. Kf1 (24. Ne5 $6 Bxe5 25. Bxe5 Kg6 26. g4 f6 27. Bg3
Kf7 $15 {[%cal Gf7e6,Ge6d5,Gd5c4]}) (24. g4 b5 (24... c5 $6 25. dxc5 Bxc3 (
25... Rd3 26. cxb6 axb6 27. Ne5 $16) 26. cxb6 $16) 25. Rb8 (25. axb5 cxb5 {
[%cal Gb5b4]} 26. Rb8 Rb7 $11) 25... bxa4 26. Rb4 Nb3 27. Rxa4 c5 $11) 24... b5
25. axb5 cxb5 26. Nd2 (26. Be5 Be7 27. Nd2 f6 28. Bf4 b4 $11) 26... b4 27. Ne4
(27. cxb4 Rxd4 28. bxa5 Rxf4 29. Rc7 a6 30. Rc6 Ra4 31. Rxa6 Bc3 32. Nb3 Ra3
$11) 27... Be7 (27... bxc3 28. Nxf6+ gxf6 29. Be3 $14) 28. cxb4 Rxd4 29. bxa5
Rxe4 $11) 21. Qb3 (21. Ne5 $5 Qxb5 (21... Bxe5 22. Bxe5 (22. Qxe5 Nd5 23. Bd2
Qxa4 $17) 22... c6 (22... Nd5) 23. Qc4 (23. Qd3 c5) (23. Qa6 Nd5 {[%csl Ra6]
[%cal Gd5c3]}) 23... Nd5 $11) 22. axb5 Bxe5 (22... Rd5 $2 23. Nc6 Nxc6 24. bxc6
$16) 23. Bxe5 c6 24. Bxg7 (24. bxc6 Nxc6 25. Bc7 Rd7 $11) 24... Kxg7 25. Rxe7
cxb5 26. Rxa7 b4 27. cxb4 Rxd4 28. b5 Rb4 $11) 21... Qd5 (21... Nd5 $5 22. Bg3
(22. Bc1 c6 (22... Re8 23. Rxe8+ Qxe8 24. Qxd5) (22... c5 23. c4 Nb4 24. d5 $14
) 23. c4 $6 (23. Bb2 Nf4 $36) 23... Ne7 24. Bb2 Nf5 $15) 22... a5 (22... c5 23.
c4 Nb4 24. d5 $14) (22... c6 23. c4 Ne7 24. Be5 Bxe5 25. Rxe5 Nf5 $11) 23. c4
Nb4 24. d5 c6 25. d6 $14) 22. Qa3 Qd7 23. Qb3 Qd5 24. c4 Qd7 25. d5 Nf5 $6 {
This move underestimates White's space advantage.} (25... c6 $142 26. d6 (26.
Be5 cxd5 27. Bxf6 gxf6 28. Nh4 dxc4 29. Qxc4 $44 {/=}) 26... Nf5 27. a5 (27.
Qd3 Nxd6 28. Rd1 Qe6 $1 29. Bxd6 Be7) 27... Nxd6 28. axb6 axb6 29. Bxd6 (29.
Rd1 Qc7 30. Rd3 Be7 $15) 29... Qxd6 30. Qxb6 $11) 26. Be5 $1 $14 Be7 $6 (26...
Re8 $142 $5 27. Bxf6 Rxe1+ 28. Nxe1 gxf6 $14 {White's structural advantage is
evident but it is not as threatening as in the game.}) (26... Bxe5 27. Nxe5 $14
{[%cal Ge5c6]}) 27. Bb2 Bd6 28. Qc3 f6 (28... Bf8 29. Ne5 $16 {[%cal Ge5c6]})
29. Qc2 Bf8 30. g4 (30. Re6 {[%cal Gc2f5]} Nd6 31. Nd4 Nb7 $14 {[%cal Gb7c5]})
30... Nd6 ({The black N would be too passive after} 30... Ne7 31. Nd4 $16) 31.
Nd4 Re8 32. Re6 Rxe6 $6 (32... Nb7 $142 {[%cal Gb7c5]} 33. Rxe8 (33. Qe2 Ra8
34. Nc6 (34. Nf5 Nc5 35. Re3 Nxa4) (34. Qf3 Re8 (34... Nc5 35. Rc6 $14 Nxa4 36.
Bc1 Nc5 37. Bf4 Rc8 38. Nb5 $16) 35. Qe3 Kf7 {[%cal Gb7c5]} 36. Rxe8 Qxe8 37.
Ne6 Bd6 $11 {[%cal Gb7c5] /+/=}) 34... Nc5 35. Re3 Nxa4 36. Ne7+ Kh7 37. Bd4
Re8 38. Qc2+ Kh8 39. Nc6 Rxe3 40. Bxe3 Nc5 41. Nxa7 $14) 33... Qxe8 34. Nb5 Nc5
35. Nxa7 Nxa4 36. Bd4 $14) 33. dxe6 $6 $14 {It is tempting to have such an
advanced passed pawn.} ({But White could have created more problems for Black
with a N on e6. For example} 33. Nxe6 $142 {[%cal Gc2h7]} Ne8 (33... Nb7 $2 34.
Qh7+ $1 Kf7 (34... Kxh7 35. Nxf8+ $18) 35. Bxf6 $18 Kxf6 36. Qf5+ Ke7 37. Qxf8#
) (33... Qf7 34. c5 $1 Nb7 (34... bxc5 35. Qxc5 $16 {[%csl Rc7]}) 35. cxb6 cxb6
36. Qc8 $16 {[%csl Gc8,Gd5,Ge6]}) 34. Qh7+ (34. a5 bxa5) (34. Bc3 c6) 34... Kf7
35. Qg6+ Kg8 36. a5 (36. Bc1 {[%cal Gc1h6]} Qxa4 37. Bxh6 Qd7 38. Bf4 Bd6)
36... bxa5 37. c5 a4 38. Qe4 $16 {[%csl Re8,Rf8]}) 33... Qe8 {[%csl Re6][%cal
Gc7c5]} 34. Qe2 Be7 {[%csl Ra4][%cal Ge8a4]} (34... a6 $5) 35. Nb5 (35. a5 Qa4
36. axb6 cxb6 {[%csl Rc4]} 37. Nf5 $5 Nxf5 38. gxf5 a5 39. Qh5 Qb4 40. Qf7+ Kh7
$11) 35... Qc6 (35... Nxb5 36. axb5 $14 (36. cxb5 $14)) 36. Ba3 Nc8 (36... Nxb5
37. cxb5 (37. axb5 Qe8) 37... Qe8 38. Bxe7 Qxe7 39. Qe4 Kf8 40. Qd5 $16) 37.
Nxa7 $5 Qxa4 (37... Nxa7 38. Bxe7 Qxa4 39. Bd8 Kf8 40. g5 $18) 38. Nxc8 Bxa3 $2
{The decisive mistake.} ({Black still had chances to hold with} 38... Qxa3 $142
{, for example} 39. Nxe7+ (39. Qe4 {[%cal Ge4g6]} Bc5 $1 {[%cal Ga3g3]} 40. e7
(40. Kg2 Qa2 {[%cal Ga2f2,Ga2c4]} 41. Qf4 $4 Qa8+ $1 $19 {[%csl Rc8]}) 40...
Qg3+ 41. Kh1 Qxh3+ $11) (39. Qe3 Qa1+ 40. Kh2 (40. Kg2 $2 Qa8+ $19) 40... Kf8
41. Qe4 Qe5+ 42. Qxe5 fxe5 43. Kg3 (43. Na7 Bd6 44. Nc6 g5 45. Kg2 Kg7 46. Kf3
Kf6) 43... Bc5 44. f4 (44. Na7 Ke7 $17) 44... c6 {[%cal Gb6b5]} 45. Na7 (45.
fxe5 b5 46. cxb5 cxb5 47. Kf4 b4 48. Ke4 b3 49. Kd3 b2 50. Kc2 Ba3 51. e7+ (51.
Nd6 Ke7 52. Nc4 Bc5 53. Kxb2 Bd4+ 54. Kc2 Kxe6 $11) 51... Ke8 52. Kb1 g6 53.
Nd6+ Kxe7 54. Nc4 Bc5 55. Kxb2 Bd4+ 56. Kc2 Ke6 57. Kd3 Bxe5 $11) 45... exf4+
46. Kxf4 b5 47. Nxc6 bxc4 $11) 39... Qxe7 40. f4 (40. Qe4 Kf8 41. Qa8+ Qe8 42.
Qd5 g5 {[%csl Re6] to single out the e6-P} 43. Kg2 Ke7 $11) 40... Kf8 41. f5
Qd6 42. Kg2 Ke7 $11) 39. e7 $1 Kf7 (39... Qe8 40. Qe6+ Kh7 41. Qf5+ Kh8 42. Qd5
{[%cal Gd5d8]} Bd6 43. Qb5 $18) 40. g5 $1 Qd7 (40... fxg5 41. Qf3+ $18) (40...
hxg5 41. Qh5+ g6 42. Qh7+ Ke6 43. Qg8+ $18) 41. gxh6 Qe8 42. Qh5+ 1-0

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.06"]
[Round "5.3"]
[White "Kryvoruchko, Yuriy"]
[Black "Yu, Yangyi"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2693"]
[BlackElo "2725"]
[Annotator "Havasi,G"]
[PlyCount "85"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "China"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "CHN"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3
Nbd7 9. Qd2 Be7 10. g4 b5 11. a4 (11. g5 Nh5 12. O-O-O {is another line.})
11... bxa4 {This move makes the structure worse, but aims to confuse White's
forces.} (11... b4 {is another move, the game can go like} 12. Nd5 Bxd5 13.
exd5 Nb6) 12. Rxa4 O-O 13. Na5 $1 {White doesn't want to take the a6-pawn. It
is simply not so important. The positional goals are more important.} Nb8 $6 {
This move is not so good, because the knight will be passive on b8. On the
other hand, it makes some sense, because the alternative line is also worse
for Black.} (13... Qc8 14. g5 Nh5 15. Nd5 $36) 14. g5 Ne8 {Black tries to move
the knight to e8 instead of h5, as the knight would be out of play on the edge.
} 15. Nd5 Bxd5 16. exd5 $14 {White has managed to get a massive positional
advantage from the opening.} Qd7 17. b3 Bd8 18. Bd3 f5 (18... Qh3 {is nothing
special, White easily protects f3:} 19. Qf2 Bxa5+ 20. Rxa5 f5 21. f4 $16) 19.
f4 $1 {From a practical point of view, this is a very good move. Giving no
chance for Black to break out.} exf4 20. Bxf4 Qf7 21. O-O Nd7 {Black has
managed to develop the knight. It is clear that White has an advantage, but it
is time to exploit it.} 22. Be3 Bxa5 {To get rid of the dangerous knight that
would go to c6.} (22... g6 23. Nc6 $16) 23. Rxa5 Qh5 (23... Nc7 24. Bf4 $16)
24. Rxa6 {Finally winning the pawn.} Rxa6 25. Bxa6 Ne5 26. Be2 Qg6 27. Kh1 $16
{White has decisive a advantage. Black will try a last chance to get some
counterplay.} h6 $5 28. gxh6 Nf6 {At least the knight can get into the game.}
29. Bf4 $1 {Precise move, blocking the f-pawn.} (29. hxg7 Re8 {is also good,
but Black might have somewhat more chances.}) 29... Ne4 30. Qd4 Re8 31. Rg1 Ng4
32. Bxg4 fxg4 33. Qxg7+ Qxg7 34. hxg7 {The game is over. White has prevented
any counterplay and simplified the position.} Rc8 35. Rg2 Ra8 36. Re2 Nc3 37.
Re1 Nxd5 38. Bxd6 Rd8 39. Be5 Nb4 40. Bf6 Rb8 41. c3 Nd5 42. Bd4 Nf4 43. Re4
1-0

[Event "Olympiad-43"]
[Site "Batumi"]
[Date "2018.10.04"]
[Round "10.3"]
[White "Naiditsch, Arkadij"]
[Black "Kryvoruchko, Yuriy"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "2721"]
[BlackElo "2695"]
[PlyCount "172"]
[EventDate "2018.09.24"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GEO"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Azerbaijan"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "AZE"]
[BlackTeamCountry "UKR"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5 Nxb5 7. a4 Nbd4 8.
Nxd4 d5 9. Nxc6 bxc6 10. Nd2 Rb8 11. b3 Bf5 12. Re1 Bb4 13. Ba3 Bxa3 14. Rxa3
O-O 15. Nf1 c5 16. Ng3 Be6 17. Qd2 Rb4 18. Raa1 Qe7 19. Ne2 c6 20. h3 Rfb8 21.
Rad1 Qc7 22. Nf4 c4 23. Nh5 Qe7 24. Re3 Qh4 25. g4 cxb3 26. cxb3 Rxb3 27. Rc1
Rxe3 28. Qxe3 d4 29. Qa3 h6 30. Nf4 Qg5 31. Nxe6 fxe6 32. Rxc6 Qxe5 33. Qa2
Qe1+ 34. Kh2 Re8 35. Qc2 d3 36. Qxd3 Qxf2+ 37. Kh1 Kh8 38. Rc2 Qe1+ 39. Kg2 Rf8
40. Qe2 Qb1 41. Rb2 Qa1 42. Rb4 Rd8 43. Rc4 Rb8 44. Qc2 Rf8 45. Rc8 Qf1+ 46.
Kh2 Kg8 47. a5 Qf4+ 48. Kg2 Qd4 49. a6 Qd7 50. Rxf8+ Kxf8 51. Qc5+ Ke8 52. Qh5+
Ke7 53. Qc5+ Kf7 54. Qa3 Qc6+ 55. Kg3 Ke8 56. Qb2 Qc7+ 57. Kf3 Kd8 58. Qb5 g5
59. Kg2 Qd6 60. Kf2 Qd2+ 61. Kf1 Qd6 62. Ke2 Qh2+ 63. Ke1 Qg1+ 64. Ke2 Qg2+ 65.
Ke1 Qe4+ 66. Kf1 Qf3+ 67. Ke1 Qe3+ 68. Kd1 Kc7 69. Qb7+ Kd6 70. Qh7 Qb3+ 71.
Kd2 Qa2+ 72. Ke3 Qa3+ 73. Kf2 Qxa6 74. Qxh6 Qb6+ 75. Kg2 Qb2+ 76. Kf3 Qc3+ 77.
Ke2 Qc4+ 78. Ke3 Qf4+ 79. Kd3 Kd5 80. Ke2 a5 81. Qh5 Kd4 82. Qe8 Qe3+ 83. Kd1
Qb3+ 84. Kd2 Qa2+ 85. Kc1 Ke3 86. Qe7 Qd2+ 0-1

