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Главная страница Справка Коды ЭШД A00 - A99 A77

Коды ЭШД

A74 A75 A76

A77

A78 A79 A80

A77

Код энциклопедии шахматных дебютов (ЭШД)

Описание

RU: Защита Бенони (основная система): 9...Лe8 10 Кd2: 10...a6 и 10...Кbd7
EN: Modern Benoni: Classical: 9...Re8 10 Nd2: 10...a6 and 10...Nbd7

Ходы

1. d4 Кf6 2. c4 c5 3. d5 e6 4. Кc3 e:d5 5. c:d5 d6 6. e4 g6 7. Кf3 Сg7 8. Сe2 0-0 9. 0-0 Лe8 10. Кd2 a6

Дебюты

Защита Бенони

[Event "Olympiad-37"]
[Site "Turin"]
[Date "2006.05.31"]
[Round "10"]
[White "Atalik, Suat"]
[Black "Pantsulaia, Levan"]
[Result "0-1"]
[ECO "A77"]
[WhiteElo "2632"]
[BlackElo "2611"]
[Annotator "Atalik,S"]
[PlyCount "130"]
[EventDate "2006.05.21"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ITA"]
[SourceTitle "CBM 113"]
[Source "ChessBase"]
[SourceDate "2006.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2006.07.31"]
[SourceQuality "1"]
[WhiteTeam "Turkey"]
[BlackTeam "Georgia"]
[WhiteTeamCountry "TUR"]
[BlackTeamCountry "GEO"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 a6 $6 {Inclusion of
these moves is to white's advantage in many lines.} 7. a4 g6 8. Nd2 $1 Nbd7 9.
e4 Bg7 10. Be2 (10. Nc4 Nb6 11. Ne3 O-O 12. Bd3 Nh5 $1 $132 {was an
overestimated line for white years ago.}) 10... O-O 11. O-O Re8 {White has to
give a decision now.} 12. Ra3 {Petrosian's bread and butter.} (12. f4 $5 c4 13.
Kh1 Nc5 14. e5 dxe5 15. fxe5 (15. Nxc4 exf4 16. Bxf4 Nce4 $132) 15... Rxe5 16.
Nxc4 Rf5 (16... Re8 17. Bg5 $1 $16) 17. Bf4 $16 {and black does not have his
usual counterplay with b6 and Ba6 due to early introduction of a6 and a4
respectively.} (17. Bf3 Ng4 18. Bxg4 Rxf1+ 19. Qxf1 Bxg4 20. Bf4 $16)) (12. Ra2
$5 Ne5 13. b3 $5 {looked to extravagante.} (13. f4 $2 Neg4 14. Ndb1 Nxe4 $1 15.
Nxe4 Nxh2 $3 $19)) 12... Rb8 13. h3 $1 Qe7 14. a5 h6 15. f4 $1 $16 {White
controls a good part of the board.} (15. Re1 g5 16. Rb3 Ne5 17. Nf1 Qc7 $132) (
15. Nc4 g5 16. Rb3 Ne5 17. Nb6 Nfd7 $132) 15... b5 16. axb6 Rxb6 17. Kh1 Bb7
18. Bd3 $1 h5 {h5-h4,Nh5 looks like being his best counterplay considering the
circumstances.} 19. Nc4 Rb4 20. Na5 $1 (20. Na2 $2 Nxe4 $1 $19 (20... Rxc4 21.
Bxc4 Nxe4 $44)) 20... h4 21. Nc6 Bxc6 $2 {I was surprised for his reaction.} (
21... Qf8 22. Qf3 $1 {None of the rest is giving anything real.} (22. Qe1 Rd4
23. Bc2 Nxd5 (23... Rxd5 24. Na5 Ba8 25. Nxd5 Nxd5 26. Qxh4 $18) 24. Nxd4 cxd4
25. Nxd5 Bxd5 26. Qxh4 Bxe4 27. Bxe4 Rxe4 28. Rxa6 d3 $44) (22. Re1 Nh5 23. Kh2
Ng3 24. Qg4 Nf6 $1 $132) (22. Kh2 Nxe4 23. Nxe4 Rbxe4 24. Bxe4 Rxe4 $44) (22.
Nxb4 $2 cxb4 23. Rb3 bxc3 24. Rxb7 Nc5 25. Rb6 Nfxe4 26. Bxe4 Nxe4 27. Kh2 Ng3
$40) 22... Nh5 23. Kh2 Ng3 24. Rd1 $16) 22. dxc6 Nb6 (22... Nb8 23. Nd5 Nxd5
24. exd5 Bxb2 25. Bxb2 Rxb2 26. f5 $18 (26. Rb3 Rxb3 27. Qxb3 f5 28. Qb6 $18))
23. Rxa6 Nh5 24. Kh2 Ng3 25. Re1 $1 {This is the right square for the rook
since queen should break free on the d1-g4 diagonal.} (25. Rf3 $2 Qc7 26. Nd5
Nxd5 27. exd5 Qc8 $1 $13) 25... d5 {I have thought that he blundered.In
reality I did this with my text.Strangely I have played this a little bit too
fast.} (25... Qc7 26. Qg4 d5 27. e5 $18) 26. Rxb6 $4 {A real howler!} (26. e5
d4 (26... c4 27. Rxb6 Rxb6 28. Nxd5 Qc5 29. Nxb6 cxd3 30. Be3 Qxc6 31. Qxd3 $18
) 27. Na2 $18) (26. Bd2 $1 {I have hit to this move some hours after the game
wandering here and there thinking about it.} dxe4 27. Nxe4 Rxe4 28. Bxe4 Nxe4
29. Rxb6 $18 {with an easy win.}) 26... Bxc3 $1 27. Rxb4 Bxb4 28. Bd2 dxe4 (
28... Bxd2 29. Qxd2 dxe4 30. Bc4 Rd8 31. Qa5 $11) 29. Bxb4 cxb4 30. Bc4 (30.
Bxe4 $2 {does not work.} Nxe4 31. Qd5 Kh8 $1 (31... Kg7 32. c7 f5 33. Qb7 $18)
(31... Kf8 $2 32. c7 f5 33. Qc6 Rc8 34. Qxg6 $44) 32. c7 f5 33. Qc6 Rc8 34.
Qxg6 Qg7 35. Qh5+ Kg8 $19) (30. Bb5 Rd8 31. Qg4 $132) 30... Rd8 31. Qg4 Kf8 (
31... Kg7 32. Qg5 Qxg5 33. fxg5 Rc8 34. Bd5 e3 35. Kg1 $11) 32. Qg5 (32. c7
Qxc7 33. Qxh4 Kg7 34. Qxg3 Qxc4 35. f5 Re8 (35... Qd4 36. fxg6 fxg6 37. Qc7+
Rd7 38. Rxe4 Qxe4 39. Qxd7+ Kf6 $14 {The extra pawn does not make much
difference here.}) 36. fxg6 fxg6 $11) (32. Rc1 Nf5 33. Bxf7 $2 Qxf7 (33... Kxf7
$2 34. c7 Rc8 35. Rc6 Nd6 36. Rxd6 Qxd6 37. Qxc8 Qxf4+ 38. Kg1 Qc1+ $11) 34. c7
Rc8 $19) 32... Qxg5 33. fxg5 Ke7 34. Ba6 $2 {The funny thing is that I thought
I was winning.In deed after the text white is lost.} (34. Kg1 $2 Rd4 35. b3 Rd6
36. Ra1 Rxc6 37. Ra7+ Kd6 38. Rxf7 Ke5 $19) (34. Rc1 $6 Rc8 $1 (34... Kd6 $2
35. Rd1+ Kc7 36. Rxd8 Kxd8 37. Kg1 e3 38. Bxf7 Ne2+ 39. Kf1 Nf4 40. b3 Kc7 41.
Be8 $11) 35. Bd5 e3 (35... Rc7 $2 36. Bxe4 Nxe4 37. Re1) 36. Re1 e2 37. Bf3 $15
) (34. b3 $1 {is the move since white will be in need of anchoring the bishop
after the exchange of passers c for e.} Rc8 35. Bd5 f5 36. gxf6+ Kxf6 37. Bxe4
Re8 38. c7 Rc8 39. Bd3 Rxc7 40. Bc4 $11) 34... Kd6 35. Rd1+ Kc7 36. Rxd8 Kxd8
37. Kg1 $8 (37. Bc4 e3 38. Kg1 Ne4 $1 $19) 37... e3 38. Bc4 Ne4 39. Bd3 Nxg5
40. Kf1 Kc7 $138 (40... f5 $1 {was easily winning.However being in time
trouble he became nervous and missed it.} 41. Ke2 f4 {Black can protect his
important central pawn now.} 42. Bxg6 Kc7 43. Be8 Kd6 (43... Ne4 $5) 44. Kd3
Ne4 45. Bh5 Nd2 $19) 41. Ke2 Kxc6 42. Kxe3 Kd5 43. Kf4 Ne6+ (43... Kd4 44. Bb5
Ne4 45. Kg4 Ke3 $19) 44. Kg4 Kd4 45. Bb5 $1 g5 46. Be8 (46. Kf5 Ke3 47. Kf6 Kf2
48. Bc6 Kg3 $19) 46... f5+ $4 $19 {He wanted to give me a present.} (46... f6
$1 $19) 47. Kxf5 Ng7+ 48. Kxg5 Nxe8 49. Kxh4 {Black has won a piece but
white's outside pawns counterbalances for that.} b3 (49... Kd3 50. Kg5 Kc2 51.
h4 Kxb2 52. h5 Nd6 53. Kf6 $1 Ne4+ 54. Kg6 b3 55. h6 Kc2 56. h7 b2 57. h8=Q
b1=Q $11) (49... Ke5 50. Kg5 Nd6 51. h4 Ke6 52. Kg6 Nc4 53. b3 $1 Ne3 54. h5
Nxg2 55. h6 Nf4+ 56. Kg5 $1 Nd3 57. h7 Ne5 58. Kf4 Nf7 59. Ke4 $11) (49... Nd6
50. Kg5 Nc4 51. h4 Nxb2 52. h5 Nc4 53. h6 Ne5 54. h7 Nf7+ 55. Kf6 Nh8 56. Kg7
b3 57. Kxh8 b2 58. Kg8 b1=Q 59. h8=Q+ $14) 50. Kg5 Nd6 (50... Ng7 51. h4 Kd3
52. h5 Nxh5 53. Kxh5 Kc2 54. g4 $11) 51. h4 Kd3 52. h5 Kc2 53. Kg6 $4 {So far
everything was going ok.Usual story with h pawn compenasating for off sided
knight kept the game in balance.} (53. Kf6 $1 {First this} Ne4+ (53... Kxb2 54.
h6 Ka3 55. h7 b2 56. h8=Q b1=Q 57. Qa8+ Kb4 58. Qb8+ Nb5 59. Qf4+ $11) 54. Kg6
$11) 53... Kxb2 54. h6 Ka3 55. h7 b2 56. h8=Q b1=Q+ $19 {Due to bad king white
loses the game.Exactly the same ending was won by Predrag once.} 57. Kg7 Qb2+
58. Kh7 Qc2+ 59. Kg8 Qc4+ 60. Kh7 (60. Kg7 Qd4+ 61. Kh7 Qe4+ 62. Kh6 Qh4+ 63.
Kg7 Nf5+ 64. Kg8 Qc4+ $19) 60... Qe4+ 61. Kg8 Qd5+ 62. Kg7 Qxg2+ 63. Kh7 Qh3+
64. Kg7 {This loses a little bit earlier} ({than} 64. Kg8 Qe6+ 65. Kh7 Qf5+ 66.
Kg7 Qe5+ 67. Kg8 Qe8+ 68. Kh7 (68. Kg7 Nf5+) 68... Qh5+ 69. Kg7 Nf5+ 70. Kg8
Qe8+ 71. Kh7 Qf7+ $19) 64... Nf5+ 65. Kg8 Qb3+ {mates or wins the queen.} 0-1

[Event "SRB Central-ch op-A 7th"]
[Site "Paracin"]
[Date "2014.07.11"]
[Round "9"]
[White "Drenchev, Petar"]
[Black "Atalik, Suat"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2511"]
[BlackElo "2550"]
[Annotator "Atalik,S"]
[PlyCount "209"]
[EventDate "2014.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 163"]
[Source "ChessBase"]
[SourceDate "2014.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 {Georgians especially Jobava made pretty good
results out of this system.} 4. Nc3 Bg7 5. e4 O-O 6. Nf3 e6 7. Nd2 exd5 (7...
d6 8. Be2 Re8 9. O-O Na6 10. dxe6 $1 Bxe6 11. Nb3 Qb6 12. Bg5 Nb4 13. Nd2 $14 {
was approved by Petrosian.}) 8. cxd5 d6 9. Be2 {Now we entered the Modern
Benoni territory.} {Velimirovic was also fond of this move} Nbd7 10. O-O Re8
11. a4 (11. Qc2 Nb6 $5 {Mecking!}) 11... a6 $5 (11... Ne5 12. Ra3 (12. Ndb1 $5)
(12. Qc2 Bg4 $5) 12... g5 13. Qc2 g4 14. Nd1 Nh5 15. Ne3 Nf4 16. Bb5 $1 {
This is the idea which forces Black to commit a6.} Rf8 17. Re1 Qh4 18. Bf1 Nf3+
19. Nxf3 gxf3 20. Nc4 fxg2 21. Bxg2 Nxg2 22. Kxg2 f5 23. Nxd6 Be5 24. Rg3+ $5
Bxg3 25. hxg3 $16) 12. Ra3 (12. Re1 h5 $5 13. h3 Rb8 14. a5 Qe7 15. Ra3 Ne5 16.
f4 Ned7 $13 {Arun Prasad-Pantsulaia, Kolkata 2014.}) 12... Rb8 {Not the first
time it is played.} (12... Ne5 13. Qc2 (13. Re1 g5 $1 (13... Nfg4 $6 {I was
never convinced that this works.} 14. h3 Nxf2 15. Kxf2 Qh4+ 16. Kg1 Bxh3 (16...
Ng4 17. Bxg4 Bxg4 18. Ne2 Bd4+ 19. Kh1 $16) (16... b5 17. axb5 Bxh3 18. Nf1 Ng4
19. g3 Qh5 20. Bxg4 Bxg4 21. Qc2 Bd4+ 22. Be3 Bf3 23. Qh2 $18) 17. Nb5 $1 Bg4
18. Nc7 c4 19. Nf1 Nd3 20. Rxd3 Bxe2 21. Qxe2 cxd3 22. Qf2 $16) 14. Nf1 h6 15.
Qc2 Rb8 16. Ng3 Ng6 17. Bd2 Nf4 $132) 13... g5 14. Nd1 $1 {This is supposed to
be the real maneuver.} Ng6 (14... Bd7 15. a5 Ng6 16. Ne3) 15. Ne3 Rb8 16. a5
Nf4 17. Bd1 {The Portisch-Gligoric approach leads certainly to better
positions for White.} Bd7 18. f3 $16) 13. a5 {Tigran Vartanovich Petrosian's
move!} (13. Qc2 Ne5 (13... Qe7 $5) {I was concerned about} 14. f4 (14. Re1 $6
Nfg4 $1 {This only works fine when White has put his queen on c2.} 15. Nf1 (15.
h3 Nxf2 16. Kxf2 Qh4+ 17. Kf1 Bxh3 18. Nf3 Bxg2+ 19. Kxg2 Nxf3) 15... f5 $132)
14... Neg4 15. Nf3 (15. Nc4 $2 b5 $17) 15... Bd7 (15... c4 $5) 16. a5 c4 $132)
{Finally I was happy to see} 13... Ne5 14. Qc2 (14. f4 Neg4 15. Nc4 Nxe4 16.
Bxg4 Bxg4 17. Qxg4 Bd4+ 18. Kh1 (18. Ne3 Nxc3 19. Rxc3 Bxc3 20. bxc3 Qxa5)
18... Nf2+) (14. Re1 g5 15. Nf1 h6 16. Ng3 Ng6 $132) 14... g5 15. Re1 {Not the
most dangerous!} (15. Nd1 $142 $1 {As usual Gligoric-Portisch approach should
prevail!}) 15... h6 $1 16. Nf1 Ng6 17. Ne3 {I have always thought that the
combination of Ne3 and Ng3 is the best tandem.} (17. Ng3 $142 Nf4 (17... b5 18.
axb6 Qxb6 19. Nd1) 18. Bd2 b5 (18... h5 19. Bf3 (19. Bxf4 gxf4 20. Nxh5 Nxh5
21. Bxh5 Be5 $44) 19... h4 20. Nge2 N6h5 21. Na4 $16) (18... Ng4 19. Bxg4 Bxg4
20. Nd1 {Khismatullin-Yuffa, Tyumen 2012.}) 19. axb6 Qxb6 20. Nd1 $13) 17...
Bd7 18. Bd2 Qe7 19. Nc4 (19. Rb3 $5 Nxe4 20. Nxe4 Qxe4 21. Qxe4 Rxe4 22. Bxa6
Rb4 23. Rxb4 cxb4 $13 {is a mess.}) 19... Nh7 $5 {An inspired idea idea,
g4-Nf6-h7-g5. Is it unstoppable? I doubt it.} (19... Bb5 $5 20. f3 Bxc4 21.
Bxc4 Nh5 22. Ne2 Nhf4 23. g3 Nxe2+ 24. Bxe2 Bd4+ 25. Kg2 $14) 20. Bf1 $6 {
My opponent not only was consuming huge chunks of time also started to play
bad around here.} (20. Rb3 $1 Ne5 (20... g4 $2 21. Rb6) 21. Rb6 Nxc4 22. Bxc4
$16 {probes Benoni's structural problems!}) 20... g4 21. Nb6 $6 ({Maybe it was
not too late for} 21. Rb3 Ne5 22. Rb6 Nxc4 23. Bxc4 Ng5 24. Qb3 Be5 25. Bxg5 (
25. Rxb7 $2 Nf3+ 26. gxf3 gxf3 $19) 25... hxg5 26. Rxb7 Rxb7 27. Qxb7 Bc8 $1
$132) 21... Rbd8 22. Nxd7 Rxd7 23. Na4 Qh4 24. Bc3 (24. Nb6 Rdd8 25. Nc4 Bd4
26. Be3 Qf6 27. Bxh6 Nf4 28. Bxf4 Qxf4 $44) 24... Be5 25. g3 Qh5 26. h4 $2 {
Further weakening for the king's flank.} (26. Nb6 $1 Rdd8 (26... Ng5 $2 27. f4
Nf3+ 28. Kh1 Nxe1 29. Bxe1) 27. Nc4 Bxc3 28. Qxc3 Ne5 29. Bg2 Ng5 30. Nxe5 Rxe5
31. Rb3 Rd7 32. Rb6 Nf3+ 33. Bxf3 gxf3 34. Re3 Qh3 35. Rxf3 Rxe4 36. Re3 Qf5
$13) 26... Bxc3 $5 (26... gxh3 27. Be2 Qg5 28. Bxe5 Rxe5 29. Bf1 Rde7 $40) 27.
Rxc3 f5 28. b4 $2 $138 {This should have been the final mistake in this game.}
cxb4 29. Rc8 Ne5 30. Bg2 Nf6 $2 (30... Rde7 31. Rb1 fxe4 32. Bxe4 Nf6 33. Rxb4
Nxe4 34. Rxe4 Qf5 35. Rxe8+ Rxe8 36. Nc3 Rc8 $19) (30... f4 31. Nb6 (31. gxf4
Nf3+ 32. Bxf3 gxf3 33. Rxe8+ Qxe8 34. Kh2 Rg7 $19) 31... Rg7 $19 {were two
different ways of cashing the point!}) 31. exf5 $1 $132 {I have completely
missed this one.} b3 (31... Rde7 $142 32. Kf1 (32. Re3 Nf3+ 33. Bxf3 Rxe3 34.
fxe3 gxf3 $17) 32... Kg7 33. Rc7 $1 $132) (31... Nf3+ $4 32. Bxf3 $18) 32. Qc3
Qxf5 33. Rxe8+ Nxe8 34. Qxb3 Rc7 35. Qe3 (35. Be4 Qf8 36. Nc3 Rf7 $40) 35...
Qf6 36. Nb6 Kf7 $5 37. Qe4 {I started to just hang around in his time trouble.}
(37. f4 gxf3 38. Rf1 Kg7 39. Bxf3 $132) 37... Ng7 38. Rb1 Nf5 39. Kh1 Kg7 40.
Rd1 $2 (40. Qf4 $5) 40... h5 $2 ({I should have tried my original intention
which could have bring a nasty position to play under severe time pressure for
me.} 40... Nxh4 $3 41. gxh4 Qxf2 $19 42. Rf1 Qxh4+ 43. Kg1 Qg5 $44) 41. Qf4 $1
{He reapeired his mistake.} Ne7 42. Qe3 Rc5 43. Qd2 Qf5 44. Rf1 N7g6 45. Qb2 $2
(45. Qe3 $5) 45... Rc2 $5 (45... Rxa5 46. Qb4 (46. Nc4 Rb5 47. Nxd6 Rxb2 48.
Nxf5+ Kf6 $17) 46... Rc5 47. Na4 Rc4 48. Qxb7+ Qd7 $1 49. Qxd7+ Nxd7 50. Nb2
Rb4 $17) 46. Qd4 (46. Qb1 Ne7 (46... Kf6 $2 47. Qb4)) 46... Qf6 (46... Qd3 47.
Qa4) 47. Be4 Ra2 (47... Nxh4 $2 {is refuted by} 48. Qe3 $1 $18 (48. Nd7 $6 Nxd7
49. Qxf6+ Kxf6 50. Bxc2 Nf3 51. Rb1 Nc5 $44)) (47... Re2) 48. Kg2 $6 $138 (48.
Qe3 $5) 48... Rxa5 $2 ({Once again I had to try the sac!} 48... Nxh4+ $1 49.
gxh4 Qf4 50. Nc4 Ra4 51. Qe3 Qxe3 52. Nxe3 Rxe4 53. Rb1 $132) 49. Rc1 $14 Nf7
$2 {I have also blundered on the eve of time trouble.} (49... Nh8 50. Rc7+ Nhf7
51. Rxb7 Rb5 $14) 50. Qxf6+ $2 {He could have taken over the initiative} ({with
} 50. Qd2 $142 Rb5 (50... Ra1 $2 51. Nd7 $18) 51. Nd7 Qe7 52. Bxg6 Qxd7 53.
Bxh5 Qf5 54. Qd4+ Ne5 55. Rc7+ Kh8 56. Qf4 Qxf4 57. gxf4 Nd3 58. Kg3 $40) 50...
Kxf6 51. Nd7+ Kg7 52. Rc7 Nf8 $2 ({Why not} 52... b5 $142) 53. Rxb7 Nxd7 54.
Rxd7 Ra2 55. Kf1 Kf6 56. f4 gxf3 $4 ({I had to agree for a draw with} 56... a5
57. Bh7 Ra1+ (57... a4 58. Bg8) 58. Ke2 Ra2+ 59. Kf1 $11) (56... Ra1+ 57. Ke2)
57. Bxf3 $16 Ne5 $2 {Collapse!} (57... Kg6 $142 58. Bxh5+ Kxh5 59. Rxf7 Kg4 60.
Rf6 a5 $132) 58. Rxd6+ Kf5 59. Bxh5 a5 $138 (59... Ke4 $5 60. Rd8 $18) 60. Be2
a4 61. h5 Nf7 62. Ra6 a3 63. h6 $18 {I have really succeeded to accomplish
everything possible to lose this game. Strange enough in spite of all this
abuse my wreck kept on resisting!} Ra1+ 64. Kf2 $2 {Noo need to allow Rh1} (64.
Kg2 $18) 64... Rh1 65. h7 Rh2+ (65... Ke5 66. Rxa3 Rh2+ 67. Ke3 Rxh7 68. Ra7
$18 {could have transposed into the game.}) 66. Ke3 Ke5 67. Rxa3 $5 (67. Bd3
$18) 67... Rxh7 68. Bf3 $2 ({The pin should have won the game on the spot.} 68.
Ra7 Ng5 69. Rxh7 Nxh7 70. Bf3 Nf6 71. Kf2 $1 Ne8 72. Kg2 Nd6 73. Kh3 Kf5 74.
Kh4 Nf7 75. g4+ Kf6 76. Kh5 $18 {pushes Black easily.}) 68... Nd6 $16 {With
the rooks there is still some hope left!} 69. Kf2 Nc4 70. Rd3 Rh2+ $2 (70...
Kd6 $16) 71. Bg2 Kd6 72. Rd4 $1 {Did Rh4 consist as a threat?} Nb6 ({Maybe not:
} 72... Ne5 73. g4 (73. Rh4 $2 Nd3+ 74. Kf1 Rxh4 75. gxh4 Nf4 $11) 73... Kc5
74. Ra4 $16) 73. g4 $2 Rh8 $4 {Finally he blundered and I did not see.
Terrible!} (73... Ke5 $1 74. Rd1 (74. Re4+ Kxd5 $11) 74... Kf4 $11) 74. Kg3 Rg8
75. Rf4 Nd7 76. Bf3 Ne5 (76... Kc5 $142) 77. Rf6+ Kc5 78. Rf5 (78. Kf4 $142 $18
) 78... Nc4 (78... Kd4 $142 79. Rf6 Rg7) 79. Kf4 Nd6 80. Rf6 Ne8 81. Rc6+ Kd4
82. g5 $2 {Still enough to win} ({but} 82. Rc8 $18 {would have forced the
resignation.}) 82... Ng7 83. Kg4 Ne8 84. d6 Rg7 85. Kh5 $4 {Another case of
double blindness was coming.} (85. Kf5 Rf7+ 86. Ke6 Rxf3 87. d7 Ng7+ 88. Ke7
Nf5+ 89. Kf7 $1 $18) 85... Rh7+ $4 (85... Ke5 86. Kh6 Ra7 87. d7 Rxd7 88. Bg4
Re7 $11) 86. Kg6 $18 {From here and on there was nothing left to go wrong for
my opponent.} Rd7 87. Kf5 Rxd6 (87... Nxd6+ 88. Ke6 $18) 88. Rxd6+ Nxd6+ 89.
Ke6 {The minor piece ending is won for White due to zugzwangs.} Ne8 90. g6 Ke3
91. Bc6 Ng7+ 92. Kf6 Nh5+ 93. Ke5 {Too cautious!} (93. Kf7 Kf4 94. Ba4 Ng3 95.
Kf8 Nf5 96. Bd7 Nh6 97. Kg7 Kg5 98. Be6 $1 $18 (98. Bh3 $4 Ng8 $11)) 93... Kf2
94. Kf5 Kg3 95. Ba4 Kh4 96. Bd1 Ng7+ 97. Kf6 Ne8+ 98. Kf7 Nd6+ (98... Kg5 99.
Bc2 $22 {would have been beautiful after all.}) 99. Ke7 Nf5+ 100. Kf6 Nd6 101.
Ba4 Ne4+ 102. Kf7 Nd6+ $2 (102... Kg5 103. g7 Nf6 104. Bc2 $22 $18) (102... Ng3
$5 {might have been the trickiest as my roommate IM Nenad Doric mentioned.}
103. Bc2 (103. Bd1 Nf5 104. Kf6 Nd6 105. Bc2 Kh5 106. Ke7 Nc8+ 107. Kf8 $18)
103... Nh5 104. Bd1 Ng3 105. Ke6 $18) 103. Ke6 Ne4 104. g7 Ng5+ 105. Ke7 1-0

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "1"]
[White "Benjamin, Joel"]
[Black "De Firmian, Nick E"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2475"]
[BlackElo "2475"]
[Annotator "Bulletin"]
[PlyCount "79"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Nd2
O-O 9. Be2 Re8 (9... Na6 10. O-O Nc7 11. a4 b6) 10. O-O Nbd7 11. a4 Ne5 12. Re1
a6 13. Qc2 Rb8 14. a5 Nh5 $5 15. Bxh5 gxh5 16. Nd1 Bd7 (16... b5 17. axb6 Rxb6)
(16... Kh8) 17. Ne3 Qf6 18. Ra3 Re7 19. h3 $1 Rbe8 20. Qd1 $1 h4 (20... Qg6 $6
21. f4) (20... Qg5 21. Nec4) 21. Rf1 $1 Ng6 (21... Bb5 22. f4 $1 Bxf1 23. fxe5)
22. Nec4 Nf4 23. Qf3 Bb5 $2 (23... Kh8 {24...Tg8}) 24. Re3 $1 Bh6 25. b3 $1 Qg6
26. Rfe1 Bd7 $2 (26... Nh5 27. Nxd6 $1 Bxe3 28. Rxe3 Qxd6 29. Qxh5 $18) (26...
Kh8 $5 27. Bb2+ f6 28. Nxd6 Rg8 29. Nf5 $5 (29. Kh1) 29... Nxg2 $1 30. Nxe7
Nxe1+ 31. Nxg6+ Rxg6+ 32. Qg4 Rxg4+ 33. hxg4 Bxe3 34. Bxf6+ Kg8 35. fxe3 h3 $10
) 27. Kh1 Nh5 28. Nxd6 $1 Bxe3 29. Rxe3 Qxd6 (29... Rb8 30. N2c4) 30. Qxh5 Qf4
31. Rf3 Re5 (31... Qe5 32. Qxh4 Qa1 33. Rg3+ Kh8 34. Kh2) 32. Qxh7+ Kxh7 33.
Rxf4 f5 34. f3 $1 Kg6 (34... Rxd5 35. exd5 Re1+ 36. Kh2 Rxc1) 35. Rxh4 Bb5 36.
Bb2 R5e7 37. Rf4 Rf7 38. Kh2 Bd3 39. Kg3 Rfe7 $2 40. Rxf5 1-0

[Event "FIDE World Cup"]
[Site "Tromsoe"]
[Date "2013.08.13"]
[Round "1.4"]
[White "Ushenina, Anna"]
[Black "Svidler, Peter"]
[Result "0-1"]
[ECO "A77"]
[WhiteElo "2500"]
[BlackElo "2746"]
[Annotator "CB"]
[PlyCount "80"]
[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. d4 g6 2. Nf3 Bg7 3. c4 d6 {Diesmal also kein Grünfeld.} 4. Nc3 Nf6 5. e4
O-O 6. Be2 c5 {Und auch keine Hauptvariante des Königsinders.} 7. d5 e6 8. O-O
exd5 9. cxd5 ({Die Alternative ist} 9. exd5) 9... Re8 10. Nd2 b6 ({Üblicher
sind} 10... Nbd7) ({und} 10... Na6) 11. f3 Ba6 12. Bxa6 Nxa6 13. Nc4 Nc7 14.
Bf4 Bf8 15. a4 Nh5 16. Be3 Rb8 (16... Qd7 17. g4 Nf6 18. Qd2 b5 19. axb5 Nxb5
20. Nxb5 Qxb5 21. Qc2 {1/2-1/2 (21) Cobo Arteaga,E-Taimanov,M Zalaegerszeg 1969
}) 17. g4 (17. Qd2 Rb7 18. g4 Ng7 19. Bg5 f6 20. Bh4 Na6 21. f4 Be7 22. f5 g5
23. Bg3 Nb4 24. Nb5 Rd7 25. Nd4 cxd4 26. Qxb4 Qc8 27. Rac1 Rc7 28. b3 Bf8 29.
Rfe1 Qd7 30. Nd2 Rec8 31. Rxc7 Qxc7 32. Qc4 Qb7 33. Qxd4 Ne8 34. Nc4 Rc5 35.
Bf2 Qc8 36. Qd3 Rc7 37. Re2 h5 38. h3 Rh7 39. Rc2 hxg4 40. hxg4 Qd7 41. Nd2 Qg7
42. Qf3 Nc7 43. Qg2 Na6 44. Nf3 Nb4 45. Rc4 Nd3 46. Bg3 b5 47. Rc8 Qb7 48. Qc2
Qb6+ 49. Kg2 Qe3 50. Rxf8+ Kxf8 51. Bxd6+ Re7 52. Bxe7+ Kxe7 53. Qc7+ Ke8 54.
Qc8+ Ke7 55. Qc7+ Ke8 56. Qc8+ Ke7 57. Qe6+ Kd8 58. Qxf6+ Kc8 59. Qc6+ Kd8 60.
Qa8+ Kd7 61. Qb7+ Kd8 62. Qb8+ Kd7 63. Qxb5+ Kd8 64. Qb8+ Kd7 65. Qb7+ Kd8 66.
Qa8+ Kd7 67. Qc6+ Kd8 68. Qf6+ Kc8 69. Qc6+ Kd8 70. Qd6+ Kc8 71. Qa6+ Kb8 72.
Qd6+ Kb7 73. Qg3 Nf4+ 74. Kh2 Ne2 75. Qh3 Nf4 76. Qf1 Ne2 77. f6 Qf4+ 78. Kg2
Qxg4+ 79. Kf2 Nc3 80. e5 Qf4 81. Qd3 Ne4+ 82. Ke2 g4 83. Nd2 Nxd2 84. f7 Qxf7
85. Qb5+ Kc8 86. Qc6+ Kb8 87. Qb5+ Kc8 88. Qc6+ Kb8 89. e6 Qe7 90. Kxd2 Qb4+
91. Kc2 Qe4+ 92. Kb2 g3 93. Qd6+ Kc8 94. Qc5+ Kb7 95. e7 {1-0 (95) Garcia,R 
(2420)-Szabo,L Tel Aviv 1964}) 17... Nf6 18. Bf4 h5 19. h3 a6 20. Qd2 b5 21.
axb5 axb5 22. Na5 Qd7 23. Nc6 Ra8 24. b4 cxb4 25. Nxb4 Bg7 26. Rac1 hxg4 27.
hxg4 Ra3 ({Oder auch} 27... Nxg4 28. fxg4 Ra3 29. Rf3 Rb3 30. Nd3 (30. Nc6 $2
b4) (30. Nba2 b4) 30... Bxc3 31. Rxc3 Rxc3 32. Qxc3 Rxe4 $11) 28. Rf2 Rb3 (
28... Nxg4) 29. Nc6 b4 30. Ne2 Rxf3 ({Die Einschläge} 30... Nxe4) ({und} 30...
Nxg4 {sind auch hier möglich und führen zu "gleichem" Spiel.}) 31. Rxf3 Nxe4
32. Qd3 Qxg4+ 33. Ng3 Nxd5 $11 34. Bxd6 Ng5 (34... b3 35. Qxb3 Nd2 36. Qxd5
Nxf3+ 37. Kf2 Nd4 {ist ähnlich.}) 35. Rxf7 ({Oder} 35. Qxd5 Nxf3+ 36. Kf2 Bd4+
37. Nxd4 Nxd4 38. Rc7 (38. Be5 Qg5 $11) 38... Re2+ 39. Nxe2 Qxe2+ 40. Kg3 Nf5+
41. Kf4 Nxd6 42. Qa8+ (42. Qxd6 Qh2+ $19) 42... Ne8 43. Rc8 Kf8 $11) 35... Nxf7
36. Qxd5 Re6 $11 (36... Qd7 37. Rf1 Re6 $11) 37. Bb8 Ng5 $2 (37... b3 38. Qxb3
Bd4+ 39. Nxd4 Qxd4+ 40. Kh1 Rb6 41. Rc8+ Kg7 $11) 38. Rf1 $2 (38. Rc4 {gewinnt:
} Qf3 39. Ne7+ Kf7 40. Rf4+ Qxf4 41. Bxf4 Nh3+ 42. Kh2 Nxf4 43. Qc4 Kxe7 44.
Qxb4+ Kd8 45. Qxf4 Be5 46. Qf7 Rd6 47. Kg2 Bxg3 48. Kxg3 Rb6) 38... Kh7 39.
Qh1+ Nh3+ 40. Kg2 Re2+ 0-1

[Event "IBM-18 Grootmeestergroep A"]
[Site "Amsterdam"]
[Date "1978.07.??"]
[Round "1"]
[White "Ribli, Zoltan"]
[Black "Hort, Vlastimil"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2585"]
[BlackElo "2620"]
[Annotator "Gagarin,V"]
[PlyCount "103"]
[EventDate "1978.07.13"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "12"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Nbd7 8. e4
Bg7 9. Be2 O-O 10. O-O Re8 11. a4 a6 12. Ra3 (12. Qc2 $14) 12... Rb8 13. a5 Qc7
(13... Qe7 $14) 14. Qc2 (14. h3 b5 15. axb6 Rxb6 16. Qc2 $14) 14... Ra8 $2 (
14... b5 $6 15. axb6 Rxb6 16. Nc4 (16. b3 Rb4 $6 17. Bxa6 Bxa6 18. Rxa6 $16 {
Yanvarjov,I-Doghri,N/Moscow/1991/1:0/28/}) 16... Rb4 17. Bf4 Bf8 18. f3 (18.
Bg3 $16) 18... Nb6 19. b3 Nh5 20. Bd2 Bg7 21. g4 Nxc4 22. Bxc4 Nf6 23. Ne2 $16
{Pinter,J-Gobet,F/Rome/1986/1:0/48/}) (14... Ne5 $5 15. f4 Neg4 16. Nc4 Nh5 17.
Kh1 (17. e5 $6 dxe5 18. d6 (18. h3 exf4 $1 19. hxg4 Bd4+ 20. Rf2 f3 $1 21. d6
fxe2 $19 {Nunn/}) 18... Qd8 19. Nd5 exf4 (19... e4 $15) 20. Nxf4 $1 Bf5 (20...
Nxf4 21. Bxg4) 21. Qd1 Nxf4 22. Bxg4 Bxg4 23. Qxg4 Ne2+ 24. Kh1 f5 25. Qf3 Re4
$15 {Toth,B-Nunn,J/Geneva/1979/}) 17... Qd8 18. Bxg4 Bxg4 19. e5 Qh4 20. Ne4
dxe5 $13 {Nunn/}) (14... h6 15. b3 g5 16. Bb2 Ne5 17. Nd1 $14 {Bischoff,
K-Luther,Th/Altensteig/1995/0,5/35/}) 15. b3 $16 {()/} Re7 (15... b5 16. axb6
Nxb6 17. Bb2 Nh5 $2 18. Bxh5 gxh5 19. Nd1 f6 20. b4 Ra7 21. bxc5 Qxc5 22. Rc3
Qa5 23. Ne3 $16 {>< f5,c4/} Bd7 24. Ra1 Na4 25. Rc4 Rb7 26. Bc3 Qb6 27. Raxa4
$18 {Petrosian,T-Lutikov,A/URS/1981/}) (15... Rb8 16. Nc4 b5 17. axb6 Nxb6 18.
Bf4 $16) 16. Bb2 Rb8 17. h3 Ne8 18. Kh1 Nf8 (18... Ndf6 $5 19. Raa1 Bd7 20. f4
$5 $16) 19. Bd3 Bd7 20. f4 Qd8 (20... Rd8 $5 $16 {/\ Bc8/}) 21. Ra2 Nf6 22. Rf3
Be8 23. Qb1 Bd7 24. Qf1 Ne8 25. Ba1 (25. Nc4 $14) 25... Bd4 26. Nc4 Bb5 27. Ne2
$1 (27. Nxb5 $6 axb5 28. Nb6 Bxa1 29. Rxa1 Nc7 30. b4 $1 c4 31. Bc2 Na8 $1 32.
Nxa8 Rxa8 $14) 27... Bxa1 28. Qxa1 Bxc4 (28... f6 $5 $16) (28... Nd7 $5 $16)
29. bxc4 {>< b7/} Nd7 30. Ng3 f6 (30... Nef6 $5 31. Re3 Qc7 $16) 31. Bc2 Rc8 (
31... b5 $5 32. axb6 Nxb6 33. Bd3 Reb7 $1 34. Nf1 {>< a6/} (34. Rxa6 $2 Nxc4 $1
) 34... Nc7 35. e5 $16) 32. Rb2 {>< b7/} Rc7 33. Rfb3 Nf8 34. Rb6 Ng7 35. Rb1
Rf7 36. Qc3 Rce7 37. Nf1 Ne8 (37... f5 $2 38. e5 $18) (37... Nh5 $5 $16) 38.
Nh2 $1 {/\ Ng4/} h5 {>< g6/} 39. Nf3 Ng7 40. e5 $1 $18 fxe5 41. fxe5 Rxf3 $5 (
41... Ne8 42. e6 Rg7 43. Ng5 Nh7 44. Nf7 $18 {() ><b7,d6,g6/}) 42. Qxf3 Rxe5
43. Rxb7 Nf5 44. Bxf5 Rxf5 45. Qc3 Nd7 46. Ra7 Ne5 47. Qb2 $1 Qf8 (47... Qxa5
$2 48. Qb8+ Rf8 49. Qxf8+ $1 $18) 48. Kh2 h4 (48... Rf2 49. Qxf2 $1 Qxf2 50.
Rb8+ Qf8 51. Rxf8+ Kxf8 52. Rxa6 $18) 49. Qb7 Rf7 50. Qxa6 Qg7 51. Qc8+ Kh7 52.
Rxf7 (52. Rxf7 Nxf7 53. a6 $18) 1-0

[Event "Santo Antonio 4th"]
[Site "Santo Antonio"]
[Date "2001.05.21"]
[Round "3"]
[White "Spraggett, Kevin"]
[Black "Campora, Daniel Hugo"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2526"]
[BlackElo "2503"]
[Annotator "Hecht,H"]
[PlyCount "95"]
[EventDate "2001.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[EventCategory "9"]
[SourceTitle "CBM 084"]
[Source "ChessBase"]
[SourceDate "2001.09.13"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 a6 8. a4
Nbd7 9. e4 Bg7 10. Be2 O-O 11. O-O Re8 12. Qc2 Nh5 13. Bxh5 gxh5 14. Nd1 Ne5
15. Ne3 Ng4 16. Ndc4 Nxe3 17. Bxe3 f5 18. f3 fxe4 19. fxe4 a5 20. Bf4 Ra6 21.
Rae1 h4 22. h3 Qe7 23. e5 dxe5 24. Bxe5 Bxe5 25. Rxe5 Qd8 26. Qf2 Rf8 27. Rg5+
Rg6 28. Rxg6+ hxg6 29. Qxc5 Rxf1+ 30. Kxf1 Bf5 31. d6 Qe8 32. Ne5 Qxa4 33. Qd5+
Kh8 34. Kg1 Qf4 35. d7 Qc1+ 36. Kf2 Qxb2+ {[#] Zusammenspiel aller weiЯen
Figuren ab Zug 41} 37. Kf3 Bxd7 (37... Qc3+ 38. Nd3 Bxd7 39. Qxd7 Qf6+ (39...
Qc6+ 40. Qxc6 bxc6 41. Nc5 Kg7 42. Kg4 Kf6 43. Kxh4 Ke5 44. Kg5 Kd5 45. Na4 $18
) 40. Ke4 b6 41. Nf4 Kg8 42. Nd5 Qg5 43. Kd4 Qd2+ 44. Ke5 Qg5+ 45. Kd6 Qg3+ 46.
Kc6 Qxg2 47. Kxb6 Qf2+ 48. Kxa5 Qf7 49. Qd6 $18 {bei sofortiger Rьckfьhrung
des weiЯen Kцnigs}) 38. Nxd7 a4 39. Qd6 {[%cal Rd6f8,Rd7f6]} Qg7 (39... Qc3+
40. Kg4 Qg3+ 41. Qxg3 hxg3 42. Nc5 a3 43. Kxg3 a2 44. Nb3 Kg7 45. Kf4 $18 {
wenn WeiЯ einen g-Freibauern etabliert, was machbar ist.}) 40. Qb8+ Qg8 (40...
Kh7 $142 41. Qxb7 (41. Nf8+ Kh6 42. Qf4+ g5 43. Qd6+ Kh5 44. Ne6 Qf6+ 45. Ke4
a3 $11) 41... Qf7+ 42. Nf6+ Kg7 43. Qxf7+ Kxf7 44. Nd5 a3 45. Nb4 g5 46. Ke4
Ke6 {sieht nach Remis aus.}) 41. Qe5+ Qg7 42. Nf6 Qf7 43. Kg4 a3 44. Kxh4 Kg7
45. Kg5 a2 46. g4 $18 b6 47. h4 Qa7 48. Nd7+ 1-0

[Event "Gibraltar Masters 10th"]
[Site "Caleta"]
[Date "2012.02.01"]
[Round "9"]
[White "Alvarez Marquez, Johan"]
[Black "Lupulescu, Constantin"]
[Result "1/2-1/2"]
[ECO "A77"]
[WhiteElo "2398"]
[BlackElo "2648"]
[Annotator "Let's Check"]
[PlyCount "65"]
[EventDate "2012.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "GGB"]
[SourceTitle "CBM 147"]
[Source "ChessBase"]
[SourceDate "2012.03.16"]
[SourceVersion "1"]
[SourceVersionDate "2012.03.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 a6 7. a4 g6 8. Nd2
Nbd7 9. e4 Bg7 10. Be2 O-O 11. O-O Re8 12. Re1 h6 13. Qc2 Ne5 14. f4 Neg4 15.
h3 Nh5 16. Nf3 f5 $2 (16... Qh4 17. Rf1 Bd4+ $11) 17. hxg4 $2 (17. e5 dxe5 18.
hxg4 $18) 17... fxg4 $11 18. Be3 gxf3 19. Bxf3 Ng3 20. Rad1 Bd7 21. a5 Rb8 22.
e5 Bf5 23. Ne4 dxe5 24. Qc4 Bxe4 25. Bxe4 Qh4 26. d6+ Kh8 27. d7 Rf8 $1 28. Bf3
Rbd8 29. Qe6 $1 (29. Bxb7 $2) 29... Qh1+ $1 30. Kf2 Qh4 31. Kg1 Qh1+ $1 32. Kf2
Qh4 33. Kg1 1/2-1/2

[Event "Candidates Tournament"]
[Site "Moscow"]
[Date "2016.03.16"]
[Round "5"]
[White "Aronian, Levon"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "A77"]
[WhiteElo "2786"]
[BlackElo "2794"]
[Annotator "Marin,M"]
[PlyCount "59"]
[EventDate "2016.03.11"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "RUS"]
[EventCategory "22"]
[SourceTitle "CBM 172"]
[Source "ChessBase"]
[SourceDate "2016.05.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.05.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. e4 Bg7 8. Be2 {
Classical systems never lose their actuality, even though other systems (such
as h3 and Bd3 or Bf4/h3) enjoy long periods of being in the limelight.} O-O 9.
O-O Re8 10. Nd2 Nbd7 11. Qc2 {This used to be the fashion in the '70s.} ({
But after several historic games at the top level, White eventually switched to
} 11. a4 {. The main thing is that unlike most other pieces, the queen is well
placed on its initial square, keeping the control over the d1-h5 diagonal and
adding latent force to the d5-pawn. Here are two relatively recent examples:}
a6 12. Ra3 (12. h3 {1-0 (31) Atalik,S (2608)-Atanasov,R (2218) Golden Sands
2012 CBM 149 [Atalik,S]}) 12... Rb8 {1-0 (105) Drenchev,P (2511)-Atalik,S 
(2550) Paracin 2014 CBM 163 [Atalik,S]}) 11... Ne5 ({The eccentric but
possibly not entirely sound} 11... Nh5 {yielded Fischer his first win over
Spassky ever:} 12. Bxh5 gxh5 13. Nc4 Ne5 14. Ne3 Qh4 15. Bd2 Ng4 {Spassky,B 
(2660)-Fischer,R (2785) Reykjavik 1972 MainBase [ChessBase] (0-1, 41)}) ({
My perception was that the move putting an end to the 11.Qc2 line was} 11...
Nb6 {[%csl Ge2][%cal Gf6d5]} 12. Bb5 (12. Re1 {[%csl Gf2]} Ng4 13. h3 $2 Nxf2
$1 14. Kxf2 Bd4+ 15. Kf1 Qh4 16. Nd1 Bxh3 $40) (12. a4 Nfxd5 13. exd5 Bxc3 {
[%csl Ge2]}) 12... Bd7 13. a4 Bxb5 14. Nxb5 a6 15. Nc3 Nfd7 16. a5 Nc8 17. b3
Na7 18. Bb2 Nb5 {Polugaevsky,L (2620)-Mecking,H (2635) Luzern 1977 (1/2-1/2,
42)}) 12. b3 Bg4 $5 $146 {By offering the exchange of the light-squared
bishops Black wishes to solve his development problems. In the Benoni, his
minor pieces (with the exception of the g7-bishop) compete with each other for
comfortable developing squares.} ({Prior to his game with Polugaevsky, Mecking
had also tried} 12... g5 13. Bb2 g4 14. Rfe1 Nh5 15. Nd1 Nf4 16. Bb5 Rf8 17.
Ne3 Qg5 $132 {Kortschnoj,V (2670)-Mecking,H (2615) Augusta 1974 (1-0, 42)}) ({
After White has weakened the long diagonal, Fischer's idea looks sounder:} 
12... Nh5 $5 13. Bxh5 gxh5 14. Bb2 Bd7 15. Rae1 Qh4 16. f4 $2 Ng4 17. Nf3 Bd4+
$40 {Polugaevsky,L (2635)-Nunn,J (2515) Skara 1980 (0-1, 32)}) 13. Bxg4 (13. f3
{[%cal Re2h5] only apparently gains a tempo. In fact, it simplifies the
knight's access to h5.} Bd7 14. Bb2 (14. f4 $2 Neg4 15. Nc4 Nxe4 $19) 14... Nh5
$132) 13... Nfxg4 14. Bb2 a6 15. h3 Nf6 16. f4 Ned7 17. Nc4 {White has almost
completed his development and gained considerable space. His only problem is
that the b2-bishop is not optimally placed. By now, it is sort of hanging
along the long diagonal but later we will notice another negative aspect.} Nb6
{The typical reaction to the attack on d6 and a good one here!} (17... Qc7 $6 {
Offers White the needed tempo to start the same kind of attack as in the game
without allowing Black's freeing ...b7-b5.} 18. a4 Nb6 19. Rae1 Nxc4 20. bxc4
Nd7 21. e5 dxe5 22. f5 $36) ({But the provocative} 17... Qe7 $5 {[%csl Ge4]
may be playable:} 18. e5 dxe5 19. Rae1 (19. f5 $2 b5) 19... b5 (19... e4 20. d6
$14 {[%csl Ge4]} Qe6 $2 21. g4 $1 $16) 20. d6 {Of course the position looks
promising for White, but concretely things may not be entirely clear.} Qf8 $1 (
20... Qe6 $6 21. fxe5 Nh5 (21... bxc4 $2 22. exf6 $18 {[%csl Re6,Rg7]}) 22. Ne4
$3 bxc4 23. Ng5 Qd5 24. Rd1 cxb3 25. axb3 Qb7 (25... Qc6 26. Qc4 $40) 26. Rxf7
(26. Qc4 Nb6) 26... Qb5 {[%csl Gc4]} 27. e6 Bxb2 28. Qxb2 Rxe6 29. Nxe6 Kxf7
30. Nc7 Qc6 31. Nxa8 Qxa8 32. Re1 $36) 21. Nxe5 Qxd6 22. Rd1 Qe6 23. Nxd7 Nxd7
24. Nd5 Bxb2 25. Qxb2 $44) 18. Rae1 Nxc4 19. bxc4 Nd7 {In principle this
structure favours White, as the exchange on c4 has strengthened his centre.
But with the bishop on b2 he is not optimally prepared for the thematic attack
launched by Aronian. In many lines White will miss the Bg5, increasing his
kingside pressure.} 20. e5 ({It would be nice to insert} 20. a4 {before the
central break, but Black could use the offered tempo for activating his play:}
Bd4+ 21. Kh1 Qh4 $132 22. e5 $6 dxe5 23. f5 e4) 20... dxe5 21. f5 {Penrose,
J-Tal,M Leipzig ol (Men) fin-A 1960 (11) 1-0 A pawn sacrifice known ever since}
b5 $1 {Shattering White's stability in the centre before the intiative becomes
too strong.} (21... Nf6 $6 22. Bc1 $1 $36 {[%cal Gc1g5,Gc3e4]}) 22. Ne4 (22.
cxb5 axb5 23. Nxb5 Rxa2 $132) 22... Nb6 {The second knight lands on b6. A
brave decision as it seems as if Black is neglecting his kingside defence, but
the pressure on c4 and d5 forces him to rush things or sacrifice material.} ({
The ultra-cautious} 22... Nf6 {is likely to offer White an edge:} 23. fxg6 fxg6
(23... hxg6 24. Qf2 Nxe4 25. Qxf7+ Kh7 26. Rxe4 Rf8 27. Bxe5 $1 Rxf7 28. Rxf7
Qf8 (28... Qg8 $4 29. Rh4#) 29. Rxg7+ Qxg7 30. Bxg7 Kxg7 31. Kf2 $16) 24. Nxf6+
Bxf6 25. cxb5 axb5 26. Qxc5 $14) 23. Bc1 {Humanly the most natural move. In
this case the engines' scepticism shows that they are still far from
exhausting our favourite game. White finally retrieves his complete harmony
but Black's counterplay is too advanced to allow the last move to yield an
advantage.} ({The simplistic} 23. cxb5 axb5 24. fxg6 fxg6 (24... hxg6 $2 25.
Rxf7 $3 $36 Kxf7 $2 26. Rf1+ Kg8 27. Nf6+ Bxf6 28. Qxg6+ Bg7 29. Rf7 $18) 25.
Qxc5 Na4 26. Qxb5 Nxb2 27. Qxb2 Qxd5 28. Rf2 {is a worthy alternative.
Personally I prefer White due to his strong knight, but the engines 0.00
evaluation is a bit depressing. True, the a2-pawn is vulnerable and Black has
some activity, but over the board White's position should be at least easier
to play.}) 23... Nxc4 {[%csl Gd5]} 24. d6 gxf5 $5 {A clever way to more or
less force a draw.} (24... Nxd6 $2 25. Rd1 Bf8 26. fxg6 hxg6 27. Bg5 $18) (
24... Ra7 25. Bg5 f6 26. Bh4 $44) 25. Rxf5 Nxd6 26. Bg5 Qa5 $1 {[%csl Ge1]
That is the point: due to his hanging rooks White does not have anything
better than repeating the moves.} 27. Bd2 Qd8 (27... Qb6 28. Nf6+ Bxf6 29. Rxf6
{[%cal Gd2h6,Gc2f2]} c4+ 30. Be3 Qc7 31. Qf2 $36) (27... Qc7 28. Nf6+ Bxf6 29.
Rxf6 Qe7 30. Bg5 $36) 28. Bg5 Qa5 29. Bd2 Qd8 30. Bg5 1/2-1/2

[Event "Corus-B"]
[Site "Wijk aan Zee"]
[Date "2006.01.28"]
[Round "12"]
[White "Beliavsky, Alexander G"]
[Black "Jobava, Baadur"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2626"]
[BlackElo "2614"]
[Annotator "Marin,M"]
[PlyCount "75"]
[EventDate "2006.01.14"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "15"]
[SourceTitle "CBM 111"]
[Source "ChessBase"]
[SourceDate "2006.04.04"]
[SourceVersion "1"]
[SourceVersionDate "2006.04.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2
O-O 9. O-O Re8 10. Nd2 {Having failed to obtain an advantage in the
fashionable h3, Bd3 and Nf3-system against the same opponent at the FIDE WC,
Beliavsky returns to one of his specialties, the classic variation.} Nbd7 11.
a4 Ne5 12. Ra3 a6 ({By playing this move, Black usually aims to obtain an
unclear position, without forced variations, where the outcome of the battle
is decided by the players' phantasy and acuracy. In the times when the
classical variation was popular still, the main line was considered to be} 
12... g5 {, ensuring the knight's stability on e5. The obvious drawback of
this plan is that it weakens the f5-square.}) 13. Qc2 Qe7 {By putting pressure
against the e4-pawn, Black tries to discourage f4 by indirect means.} 14. a5 {
White does not pay attention to the king side yet and starts the typical queen
side play against the weakness of the d6-pawn and of the b6-square.} ({A more
straightforard approach would consists of} 14. h3 {, taking the g4-square
under control and threatening f4 followed by Bf3. This would practically force}
g5 15. Nf3 g4 $5 ({Against the similar plan from the 12...g5 systen, Black
usually reacts with} 15... Nxf3+ 16. Bxf3 Nd7 17. Bg4 Ne5 18. Bxc8 Raxc8 {
. However, here that Black has spent a tempo on the relatively useless move ...
a6, White manages to obtain a an optimal king side regroupment with} 19. Nd1 c4
20. Rg3 h6 21. Ne3 Nd3 22. Rg4 $14) 16. hxg4 Bxg4 17. Nh2 Bd7 18. Re1 Rac8 19.
Rb3 b5 $1 $132 {1-0 Donner,J (2475)-Velimirovic,D (2525)/Amsterdam 1976/MCL 
(32)}) 14... Bg4 $5 $146 ({One of Black's main problems in the Benoni is to
find adequate squares for his minor pieces (with the exception of the
g7-bishop, of course. Exchanging any of the other minor pieces generally leads
to a relief of his position. When preparing his novelty, Jobava might have
been inspired by the following game:} 14... Bd7 15. Rb3 Rab8 16. Rb6 (16. h3 g5
$13) 16... Bg4 17. f3 (17. Bxg4 Nfxg4 18. h3 Nf6 (18... Nh6 {was given by
Velimirovic as ~~, but it looks a bit suspicious.}) 19. f4 Ned7 20. Rb3 Nh5
$132 {[%csl Ge4,Rg3][%cal Yg7d4,Rf7f5]}) 17... Bc8 18. Kh1 (18. Bxa6 Ned7 19.
Bb5 Nxb6 20. Bxe8 Nbxd5 $13 21. Bxf7+ $6 Qxf7 $15 {Velimirovic}) 18... Qc7 (
18... Nh5 $5 {Velimirovic}) 19. f4 Ned7 20. e5 (20. Nc4 $1 Nxb6 21. axb6 $44 {
Velimirovic}) 20... dxe5 21. fxe5 Qxe5 22. Nc4 Qd4 $13 {0-1 Portisch,L (2635)
-Velimirovic,D (2525)/Ljubljana 1975/MCD (40)}) 15. Bxg4 ({White could have
prevented the exchange of bishops with} 15. f3 {but after} Bc8 16. Rb3 {
the knight would have disposed over the h5-square already, when after} Nh5 {
Black would be two whole tempi ahead compared with Velimirovic' recommendation
18...Nh5.}) 15... Nfxg4 16. Na4 Nd7 17. Qd1 {White tries to drive the knight
away from g4 without weakening his position.} (17. Rb3 Rab8 18. h3 {[%csl Yg3]}
Ngf6 19. f3 Nh5 $132) 17... f5 {This is the simplest answer. Once the e4-pawn
will be exchanged, Black will have a normal position.} (17... Ngf6 18. f3 Nh5 {
was also possible, of course.}) 18. exf5 gxf5 19. h3 Nge5 20. f4 Nf7 {A good
square for the knight, where from it covers the d6-pawn and the g5-square.} 21.
Nf3 {[%csl Yd4]} Qf6 22. Rb3 Rab8 {Black has a comfortable position. White has
made certain progress on the queen side, but his bishop is passive and the
e4-square chronically weak.} 23. Nb6 Nf8 $6 (23... Nxb6 24. Rxb6 Re7 25. Re1
Re4 (25... Rbe8 26. Rxb7 $1 $16) 26. Bd2 Qg6 $132) 24. Re1 Re4 25. Rbe3 Rxf4 (
25... Rbe8 26. Qc2 $14) 26. Re6 (26. Nd7 $1 Nxd7 27. Re8+ Rxe8 28. Rxe8+ Nf8
29. Bxf4 $16) 26... Rd4 27. Qc2 Nxe6 28. dxe6 Ne5 29. Nxd4 cxd4 30. Nd7 Qh4 (
30... Nxd7 $2 31. exd7 {[%cal Yc2c8]} Qf8 32. Bg5 $18) 31. Rf1 d3 $6 (31... Re8
$1 {[%csl Ye6]} 32. Qxf5 Qe7 33. Nf6+ Bxf6 34. Qxf6 Qxe6 $13) 32. Qc7 $16 Nxd7
33. Qxd7 Qe4 34. Bg5 Kh8 35. Bd8 Bd4+ 36. Kh1 Qe2 37. Qe8+ Kg7 38. Qe7+ 1-0

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.04.01"]
[Round "10"]
[White "Tregubov, Pavel V"]
[Black "Akopian, Vladimir Eduardovic"]
[Result "0-1"]
[ECO "A77"]
[WhiteElo "2598"]
[BlackElo "2675"]
[Annotator "Marin,M"]
[PlyCount "54"]
[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. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Nd2 Nbd7 8. e4
Bg7 9. Be2 O-O 10. O-O Re8 11. f4 Nb6 $5 {Usually, Black plays this only when
a white knight arrives on c4.} ({In my article for CBM 123 I examined the
position arising after} 11... a6 12. a4 Rb8) ({Decades ago, another popular
move used to be} 11... c4) 12. a4 {The normal reaction. White questions the
merits of the previous move at once.} (12. Re1 {is a bit too slow.} Bh6 13. g3
Bh3 14. b3 $6 ({It was not too late for harassing the knight:} 14. a4 a5 15.
Bb5 Rf8 16. Nf3 $13) 14... Bg7 15. Rb1 Qc8 (15... Ng4 $5 16. Bxg4 Bxg4 17. Qxg4
Bxc3 {[%cal Gb6d5]} 18. Re2 Qf6 $17) 16. Nc4 $2 {A surprising mistake for a
corespondence game.} (16. Qc2 Ng4 $15) 16... Nxc4 17. bxc4 (17. Bxc4 Ng4 18.
Nb5 Qd7 19. Bb2 a6 $17 20. Bxg7 $2 axb5 $19) 17... Nxe4 $19 {Miettinen,
R-Kaasalainen,A/FIN-ch fin corr 1966/Corr Nr. 1 (1/2, 34)}) 12... a5 $5 $146 {
At first sight, an ugly move, chronically weakening the b5-square. Black's
idea is consolidating the b6-knight, which ensures him not only a free
development for the bishop, but also some control over the critical c4-square.
The present game shows that for White it is not easy keeping his centre well
defended and controlling the weak squares at the same time.} ({The standard
answer would be} 12... Bd7 {, preparing a retreat for the knight.} 13. Bf3 a6 {
Preparing the standard manoeuvre ...Nc8-a7-b5.} (13... h5 14. h3 Rb8 {This is
less useful than ...a6.} 15. a5 Nc8 16. Nc4 b5 17. axb6 axb6 18. e5 Nh7 19. Ne4
dxe5 20. Nxe5 $16 {0-1 (35) Poulton,J (2375)-Taylor,P (2249)/West Bromwich
2003/EXT 2004 (35)}) 14. Qb3 $6 ({The critical continuation is} 14. a5 {
, but Black is well prepared against it:} Nc8 15. Nc4 Bb5 16. Qb3 Bxc4 17. Qxc4
b5 18. axb6 Nxb6 19. Qd3 a5 {with reasonable play.}) 14... h5 $6 (14... Ng4 $1
$36) 15. a5 Nc8 16. e5 (16. Nc4 $5) 16... dxe5 17. fxe5 Rxe5 18. Nc4 $44 {
Popovics,A (2320)-Schneider,A (2337)/Budapest 2002/CBM 091 ext (1-0, 30)}) (
12... Qe7 {is not too useful at this stage of the game.} 13. Bf3 ({Both
players may have thought that} 13. a5 $1 {can be met with} Nfxd5 {, but
Black's compensation looks doubtful:} 14. exd5 Bxc3 15. bxc3 Nxd5 16. Qb3 $5)
13... Rb8 14. Kh1 (14. a5 Na8 15. Nc4 b5 16. axb6 $16 axb6 $2 17. e5 $18) 14...
Na8 15. Nc4 Nb6 16. Na3 Nbd7 17. Bd2 b6 18. Re1 Bb7 19. Nc4 $16 {Kelecevic,N 
(2425)-Caldelari,A (2129)/Mendrisio 1999/EXT 2000 (1-0, 40)}) 13. h3 {White
takes the g4-square under control in order to free the queen from this task.} (
13. Bb5 {would not have offered anything special:} Bd7 14. Bxd7 Qxd7 15. Qb3
Ra6 {The bishop exchange not only speeded up Black's development, but also
made this square available for the rook, increasing Black's queenside
stability.} 16. h3 c4 $132) 13... h5 {This standard move somewhat weakens the
kingside. With the knights relatively far from e5, Black should permanently
count with f4-f5.} (13... c4 $5 {may have been a less commital move.}) 14. Qe1
{The start of an unfortunate maneouvre.} (14. Bb5 {would be as ineffective as
on the previous move.} Bd7 15. Bxd7 Nfxd7 {Since ...Ng4 is not available
anymore, this is the logical capture now.} 16. Nb5 Nf6 {The knight has been
forced to return, but in exchange the b5-knight is not too stable.} 17. Qf3 Qd7
{[%cal Gb6a4]} 18. Nc3 h4 19. f5 Nh5 $132) ({A possibly more flexible plan
than in the game would have been} 14. Re1 h4 15. Qc2 Bd7 16. Ra3 {with complex
play. Black has to be careful, as pseudo-active play may hand in the
initiative to White:} Bh6 17. Nf3 Nh5 18. f5 Bxc1 19. Qxc1 $36 {with some
kingside threats.}) 14... Bd7 15. Qg3 $2 {Losing a pawn for almost nothing.} (
15. Ra3 $5 {would have been an alternative, although it would not be easy to
indicate White's next move.}) 15... Nfxd5 $1 16. exd5 Bxc3 17. bxc3 Rxe2 {
White not only has lost a pawn, but his structure has been seriously damaged.
His bishop will not be in time to create threats along the long diagonal.} 18.
f5 h4 19. Qd3 Qe8 20. fxg6 fxg6 21. Nc4 (21. Rb1 Re3 $1 22. Qc2 (22. Ne4 {
is safer, but Black has several ways of simplifying to a better ending with
material advantage.} Rxd3 23. Nf6+ Kh8 24. Nxe8 Bxe8 25. Rxb6 Rxd5 $15) 22...
Bxh3 $1 23. Rxb6 (23. gxh3 Rg3+ $19 {[%cal Ge8e2]}) 23... Bxg2 $1 $19) 21...
Nxc4 22. Qxc4 Re4 {Black has a material advantage and the more active piece
placement.} 23. Qb3 Bxa4 24. Qb2 Bb5 25. c4 Bxc4 26. Bh6 Qe5 27. Qxb7 Bxd5 (
27... Bxd5 28. Qb1 Kh7 29. Bd2 Re2 $19) 0-1

[Event "POR-chT 49th"]
[Site "Evora"]
[Date "2007.07.29"]
[Round "2"]
[White "Postny, Evgeny"]
[Black "Hoffman, Alejandro"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2598"]
[BlackElo "2466"]
[Annotator "Postny,E"]
[PlyCount "89"]
[EventDate "2007.07.28"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 {The opening choice of my opponent was a surprise
for me.} 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 {One of the most solid lines
to meet the Benoni. The knight is going to the excellent blockading c4 square.}
Bg7 8. e4 O-O 9. Be2 Re8 ({Another playable option for Black is} 9... Na6 10.
O-O Ne8 11. Nc4 Nac7 12. a4 f5 {which was adopted by Kramnik in one of the
decisive games in his Wch match against Leko in 2004.}) 10. O-O Nbd7 11. a4 {
Even if Black didn't play a7-a6 yet, this move is useful. In some cases the
idea Ra1-a3 transfering the rook to the kingside might work.} (11. Qc2 Ne5 12.
a4 Nh5 $5 13. Bxh5 gxh5 14. Nd1 b6 15. Ra3 Ba6 16. Rh3 h4 17. Ne3 Bd3 18. Qd1
Bxf1 19. Ndxf1 Ng6 20. Qg4 $44 {1/2-1/2 Korotylev,A (2615)-Novikov,S (2535)/
Moscow RUS 2007/The Week in Chess 639 (47)}) 11... Ne5 12. Re1 g5 $6 {In my
opinion, this plan is too optimistic. Black is trying to establish control
over the dark squares on the kingside. However, the weakening of the f5 square
is a serious drawback. The old move 12...Nfg4 is less committing and playable.}
(12... Nfg4 13. Nf1 f5 14. h3 Nh6 15. Ng3 a6 16. Be3 Qh4 17. Qd2 {[%cal Ge3g5]}
Nef7 18. Bf1 (18. Bd3 Be5 19. exf5 Nxf5 20. Nxf5 Bxf5 21. Bxf5 gxf5 $132 {
[%cal Gf5f4]}) 18... Bd7 19. exf5 Nxf5 20. Nxf5 gxf5 21. Bf4 Qf6 $11 {1/2-1/2
Seirawan,Y (2605)-Ljubojevic,L (2645)/Indonesia 1983/MCD (24)}) 13. Nf1 h6 14.
Qc2 $1 {Protecting the Pe4 and vacating the d1 square for the queenside knight
which soon will be transferred towards the "juicy" f5 square.} (14. Ng3 Ng6 15.
a5 (15. Qc2 $1 {[%cal Gc3d1,Gd1e3,Ge3f5]}) 15... a6 16. Bd2 Rb8 17. Qc2 Nf4 18.
Bc4 Ng4 19. Nce2 Qf6 20. f3 Nxe2+ 21. Nxe2 Ne5 22. Rab1 Qg6 23. Ng3 Nxc4 {
1/2-1/2 Gyimesi,Z (2531)-Pigusov,E (2609)/Koszalin 1999/CBM 073}) 14... Ng6 (
14... g4 15. Ng3 Bd7 16. Nd1 $16 {[%cal Gd1e3,Ge3f5]}) 15. Ng3 a6 16. Nd1 $1 {
[%csl Gf5][%cal Gd1e3,Ge3f5]} Rb8 (16... Nf4 17. Ne3 Nxe2+ 18. Rxe2 $16) 17.
Ne3 {Black has no compensation for the glaring hole on f5.} b5 {Actually, this
makes the matters even worse for Black, because the "a" file will be opened in
white's favour. On the other hand, it's very hard to suggest any clear plan
for Black.} 18. axb5 axb5 19. Bd2 Bd7 20. Ra6 {[%csl Rd6]} Bf8 21. Rea1 {
White's position is strategically won.} Nf4 22. Bf1 N4h5 23. Nxh5 Nxh5 24. b4 {
A typical thrust in Benoni against Black's queenside pawns majority.} Rc8 (
24... c4 25. Bc3 {does not make black's task easier.}) 25. bxc5 Rxc5 (25...
dxc5 26. Bc3 b4 27. Bb2 $18 {Black's pawns are going nowhere. Meanwhile,
white's control over the center in addition to many other pluses is decisive.})
26. Qb1 Nf6 27. f3 $6 {This move weakens the dark squares and gives Black
unnecessary practical chances.} (27. Bd3 {would have been far more convincing.}
) 27... g4 28. Bb4 gxf3 29. gxf3 Nh5 $1 {This exchange sacrifice is the best
practical chance for Black.} 30. Bxc5 dxc5 31. Kh1 (31. Bxb5 Qg5+ 32. Kh1 Rb8 (
32... Qxe3 $2 33. Qg1+ $18) {[%tqu "En","How should White continue?","","",
"b1a2","This move was difficult to foresee in time-trouble.",10]} 33. Qa2 $3 {
[%cal Ga1g1] This move was difficult to foresee in time-trouble.} Qxe3 (33...
Bxb5 34. Rg1 $18 {The point of 33.Qa2 is that Ra6 is protected.}) 34. Qg2+ Kh8
35. Bxd7 $18) 31... Qh4 (31... c4 32. Ra8 Qf6 33. Rxe8 Bxe8 34. Nf5 Bd7 35. Ra8
Bxf5 36. exf5 Qc3 37. d6 $18) 32. Qe1 (32. Bxb5 $1 Ng3+ 33. Kg1 Rb8 34. Qe1 $18
{In my calculations I missed this simple move.}) 32... Qf4 33. Ng2 Qe5 (33...
Qxf3 34. Be2 Qxe4 (34... Qh3 35. R6a3 {[%csl Rh3] trapping the queen.}) 35.
Bxh5 Qxd5 36. Qg3+ Kh8 37. Bf3 $18) 34. Ra8 Bd6 35. Qh4 Kh7 36. R8a7 ({In
time-trouble I didn't see that I could win one of black's bishops by force:} 
36. f4 $1 Nxf4 37. Qxf4 Qxf4 (37... Qxa1 38. Rxa1 Bxf4 39. Nxf4 $18) 38. Nxf4
Bxf4 39. Rxe8 Bxe8 40. Ra8 Bd7 41. Ra7 Be8 (41... Bg4 42. Rxf7+ $18 {[%csl Rf4]
}) 42. Re7 $18) 36... Nf6 (36... Be7 {would have been more stubborn.}) 37. f4
$1 {The second time I didn't miss it!} Qd4 38. e5 Ne4 (38... Ng4 39. R1a2 $1 {
wins more material.}) 39. R7a2 ({With the other rook would have been more
precise:} 39. R1a2) 39... Be7 40. Qe1 Qxd5 (40... Ra8 $1 {was worth trying,
but after} 41. Bd3 Qxd3 42. Rxa8 Qxd5 43. R8a7 Bh3 44. Rxe7 Bxg2+ 45. Kxg2 Ng5+
46. Kf1 Qh1+ 47. Ke2 Qf3+ 48. Kd2 $18 {white's king escapes safely.}) 41. Rd1 {
In the end White wins a full piece.} Qxa2 42. Qxe4+ Kg8 43. Rxd7 c4 44. Ne3 Bc5
45. Ng4 {Black resigned.This win was important, as it was the only decisive
game of the match.} 1-0

[Event "FRA-chT Top 12"]
[Site "Mulhouse"]
[Date "2011.05.30"]
[Round "5"]
[White "Postny, Evgeny"]
[Black "Williams, Simon Kim"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2612"]
[BlackElo "2520"]
[Annotator "Postny,E"]
[PlyCount "103"]
[EventDate "2011.05.26"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "FRA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]
[WhiteTeam "Metz Fischer"]
[BlackTeam "De Rueil Malmaison"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "FRA"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 {I didn't
expect the Benoni, but I have enough experience in this line.} Bg7 8. e4 O-O 9.
Be2 Re8 {Black can choose to develop the queenside knight either to d7-e5 or
to a6-c7.} (9... Na6 10. O-O Ne8 11. Nc4 Nac7 12. a4 f5 13. Bf3 b6 14. Re1 Ba6
15. Qb3 fxe4 16. Nxe4 h6 17. Bd2 Qd7 18. Ne3 $14 {1-0 Postny,E (2651)-Cebalo,M
(2500)/Sibenik 2009/CBM 132 Extra (40)}) 10. O-O Nbd7 11. Re1 {White has a
vast choice here, including an aggressive 11.f4, 11.Qc2 or the standard 11.a4.
For those wishing to understand White's ideas in this position, I advise to
you to look at the following game from the recent European championship.} (11.
a4 Ne5 12. Ra3 g5 13. Qc2 Qe7 14. Nd1 Ng6 15. Bb5 $1 Rf8 16. Ne3 Nf4 17. Re1
Ng4 18. Nf3 Nxe3 19. Bxe3 Bg4 20. Nd2 Qf6 21. Rb3 Rad8 22. Bf1 Bc8 23. Nc4 Rfe8
24. Bd2 Qg6 25. Rg3 {Excellent piece play!} Qh6 26. b4 cxb4 27. Bxb4 $16 {
1-0 Beliavsky,A (2619)-Yilmaz,M (2488)/Aix les Bains 2011/CB13_2011 (37)})
11... Ne5 12. h3 {The alternative is the immediate 12.Nf1, which I've played
myself as well. The move in the text is not a waste of time, it's useful to
cover the g4-square.} g5 {Typical plan. Black is building his play on the dark
squares. The drawback is clear - the f5 spot!} 13. Nf1 h6 ({The bold attempt
to break through doesn't work:} 13... g4 $2 14. hxg4 Nfxg4 15. f3 Qh4 $2 (15...
Nf6 $16) 16. g3 Qh3 17. fxg4 Nxg4 18. Bxg4 Bxg4 19. Qc2 Bf3 20. Qh2 $18) 14. a4
{This move should be made sooner or later.} Ng6 15. Ng3 a6 (15... Bd7 $6 16.
Bb5 $1 {The exchange of light-squared bishops will make White's task of
getting the f5 square easier.}) 16. Bd2 Bd7 17. Ra3 $6 {A typical move in the
Benoni, but not very effective in this particular position. Instead, White had
two preferable alternatives.} (17. Rb1 Rc8 (17... Qc7 18. b4 $14) 18. b4 cxb4 (
18... c4 19. Qc1 $5 $14) 19. Rxb4 $14) (17. Qc2 Nf4 (17... Qc7 18. Nd1 $16 {
[%cal Gd1e3,Ge3f5]}) 18. Bf1 h5 $6 (18... N6h5 19. Nxh5 Nxh5 20. a5 $14 (20.
Nd1 b5 $132)) 19. Nf5 Bxf5 20. exf5 N6xd5 21. Rxe8+ Qxe8 22. Re1 Qd7 23. h4 $1
$16) 17... Qc7 $6 {The queen is misplaced here, Black should search for glory
on the kingside.} (17... Nf4 18. Bf1 h5 19. Bxf4 (19. Nf5 Bxf5 20. exf5 Qd7 {
In this line it can be seen that the rook on a3 is not to the point.}) 19...
gxf4 20. Nxh5 Nxh5 21. Qxh5 Re5 22. Qf3 Qh4 {This kind of active play is what
Black should strive for in the Benoni. The compensation is beyond any doubt.})
18. Qc2 Re7 $1 {Intending to double the rooks and increase the pressure on the
Pe4.} 19. Nd1 $1 {The knight is heading to f5.} Rae8 20. f3 Nf4 21. Ne3 N6h5 $1
{The only reasonable idea that Black could think of.} 22. Ngf5 {I spend quite
a while on this obvious move, as I wasn't sure about the sacrifice that could
occur in the game.} Bxf5 23. Nxf5 Re5 $2 {This was a pleasant surprise.} (23...
Nxd5 $1 {I had calculated this before playing 22.Ngf5.} 24. Nxe7+ Nxe7 (24...
Qxe7 $2 25. exd5 Bd4+ 26. Kh2 Bf2 (26... Qe5+ 27. f4 $18) 27. Raa1 Qe5+ 28. f4
Nxf4 29. Bc3 $1 $18) 25. Bc3 Nc6 26. Bxg7 Kxg7 27. Bc4 Qe7 28. Rae3 Qe5 29. Qc3
Nd4 30. a5 Nf4 {Black's superb knights yield him reasonable compensation for
the sacrificed exchange.}) 24. Nxg7 Kxg7 $6 (24... Nxg7 25. Bc3 R5e7 26. Raa1 (
26. Bf6 Rd7 27. h4 Ngh5 $1 28. hxg5 Nxf6 29. gxf6 Qd8 30. g3 Nxe2+ 31. Qxe2
Qxf6 $14) 26... Nxe2+ 27. Rxe2 f5 28. Rae1 $16) 25. Bc3 Ng3 26. Bf1 h5 27. Kh2
h4 {Now, if it were Black's turn to move, after ...a6-a5 White can't win, as
there is no way for breakthrough on either flank.} 28. a5 {Fixing the
queenside. Black's knight are just a beautiful decoration and can't create any
serious threats.} ({An engine screams for} 28. b4 {but, having not much time
on the clock, I didn't want to rush matters.}) 28... Qd8 29. Rb3 Qd7 30. Rb6 f6
31. Bxe5 Rxe5 32. Qb3 (32. Rb1 $1 $18 {[%cal Gb2b4]}) 32... Re7 33. Bc4 Ng6 34.
Qc3 Ne5 35. Bd3 {Yes, I admit, my technique wasn't impressive, but, I believe
I didn't spoil it.} Nh5 36. Rb1 Nf4 37. Bf1 f5 {The last practical chance.} (
37... Qc7 38. b4 $1 Nd7 39. bxc5 Nxc5 (39... Nxb6 40. axb6 Qxc5 41. Qxc5 dxc5
42. Rc1 $18 {[%csl Rc5]}) 40. Qd4 $18 {Sooner or later the exchange sacrifice
on c5 will be the decisive breakthrough}) 38. b4 c4 39. b5 {Finally opening
the b-file.} fxe4 40. fxe4 g4 41. bxa6 bxa6 42. Qe3 g3+ 43. Kg1 Neg6 (43... Rf7
44. Rb7 $18) 44. Qa3 $1 {It was possible to grab either Pc4 or Pa6, but the
move in the text is the clearest way.} Rf7 45. Qxd6 Qa4 46. Rb7 Rxb7 47. Rxb7+
Kh6 48. Rf7 Nxh3+ 49. gxh3 c3 50. Qc5 Qxe4 51. Qxc3 Ne5 52. Bg2 1-0

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.03.23"]
[Round "2"]
[White "Beliavsky, Alexander G"]
[Black "Yilmaz, Mustafa"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2619"]
[BlackElo "2488"]
[Annotator "Reeh,O"]
[PlyCount "73"]
[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. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. e4 Bg7 8. Be2
O-O 9. O-O Re8 10. Nd2 Nbd7 11. a4 Ne5 12. Ra3 g5 13. Qc2 Qe7 14. Nd1 Ng6 15.
Bb5 Rf8 16. Ne3 Nf4 17. Re1 Ng4 18. Nf3 Nxe3 19. Bxe3 Bg4 20. Nd2 Qf6 21. Rb3
Rad8 22. Bf1 Bc8 23. Nc4 Rfe8 24. Bd2 Qg6 25. Rg3 Qh6 26. b4 cxb4 27. Bxb4 f5
$2 {White's pieces are simply too well placed for Black to open up the game
like this.  Fьr eine derartige Цffnung des Spiels stehen die weiЯen Figuren
einfach zu gut.} 28. exf5 Rxe1 29. Bxe1 Nxd5 ({Comparatively better was
Vergleichsweise besser war} 29... Rf8 30. Ne3 Qf6) 30. Bd2 $1 {Targeting g5.
Zielpunkt g5.} Nf4 {[%tqu "En","White wants to win the d6-pawn whereupon the
diagonal b3-g8 would be very weak. What is the first step to achieving this
goal?","The point d6 is protected by two pieces. The magic word is deflection..
.","","h2h4","Step 1 - the black queen is lured away from d6 since 31...gxh4
loses the Nf4.",20,"De","WeiЯ mцchte den Bauern d6 erobern, wonach die
Diagonale b3-g8 sehr schwach wдre. Wie lautet der erste Schritt, um dieses
Ziel zu erreichen?","Der Punkt d6 wird von zwei Figuren gedeckt. Das
Zauberwort lautet Ablenkung...","","h2h4","Schritt 1 - die schwarze Dame wird
von d6 weggelockt, denn 31...gxh4 verliert ja den Nf4.",20]} 31. h4 $1 {
Deflection 1... Ablenkung 1...} Qxh4 (31... gxh4 {uproots the Nf4 and allows
entwurzelt den Nf4 und ermцglicht} 32. Rg4 {winning a piece. mit Figurengewinn.
}) {[%tqu "En","What now?","","","c4d6","...and deflection 2 - the rook can't
give up the protection of the Bc8, and after the fall of the d6-pawn the
weakness of the diagonal b3-g8 decides the game immediately (no ...d5 anymore!)
.",10,"De","Was nun?","","","c4d6","...und Ablenkung 2 - der Turm darf die
Deckung des Bc8 nicht aufgeben, und nach dem Fall des Bauern d6 entscheidet
die Anfдlligkeit der Diagonalen b3-g8 die Partie im Handumdrehen (kein ...d5
mehr!).",10]} 32. Nxd6 $1 {...and deflection 2 - the rook can't give up the
protection of the Bc8, and after the fall of the d6-pawn the weakness of the
diagonal b3-g8 decides the game immediately (no ...d5 anymore!). ...und
Ablenkung 2 - der Turm darf die Deckung des Bc8 nicht aufgeben, und nach dem
Fall des Bauern d6 entscheidet die Anfдlligkeit der Diagonalen b3-g8 die
Partie im Handumdrehen (kein ...d5 mehr!).} Bd4 (32... Rxd6 33. Qxc8+ {and
Black's position collapses: und die schwarze Stellung bricht zusammen:} Bf8 34.
Bc4+ Kg7 35. Bc3+) 33. Qb3+ {Avoiding the last trap. Vermeidet die letzte
Falle.} (33. Nxc8 $4 {[%tqu "En","How can Black win immediately?","","","f4h3",
"...and Black wins since on the next move he can take on either f2 or g3 -
with check!",10,"h4g3","This only leads to equality!",0,"De","Wie kann Schwarz
sofort gewinnen?","","","f4h3","...und Schwarz gewinnt, denn im nдchsten Zug
kann er entweder auf f2 oder g3 schlagen - mit Schach!",10,"h4g3","Dies fьhrt
nur zum Ausgleich!",0]} Nh3+ $1 {and Black wins - und Schwarz siegt -} (33...
Qxg3 {only leads to equality after fьhrt nur zum Ausgleich nach} 34. Qc4+ Kg7 (
34... Kf8 35. Qb4+) 35. Qxd4+ $1 Rxd4 36. fxg3 Rxd2 37. gxf4) 34. Rxh3 (34.
gxh3 Qxg3+ 35. Kh1 Qxf2 36. Bc4+ Kh8 37. Qd1 Rxc8) (34. Kh2 Nxf2+ 35. Rh3 Nxh3
36. g3 Qh5 $1 37. Bxh3 g4) 34... Qxf2+ 35. Kh2 Be5+ 36. Kh1 Qxf1#) 33... Kg7
34. f6+ Kxf6 35. Qf7+ Ke5 36. Nc4+ Ke4 {[%tqu "En","Which move leads to mate
in 2?","","","f1d3","...followed by 37...Nxd3 38.Qf3++.",10,"De","Welcher Zug
fьhrt zu Matt in 2?","","","f1d3","... nebst 37...Nxd3 38.Qf3++.",10]} 37. Bd3+
$1 {... followed by 37...Nxd3 38.Qf3++. ... nebst 37...Nxd3 38.Qf3++.} 1-0

[Event "EU-Cup 31st"]
[Site "Skopje"]
[Date "2015.10.18"]
[Round "1.3"]
[White "Laznicka, Viktor"]
[Black "Van Kerkhof, David"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2676"]
[BlackElo "2319"]
[Annotator "Schulz,Andre"]
[PlyCount "51"]
[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 "Novy Bor"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3
O-O 9. O-O Re8 10. Nd2 a6 ({Jeder Schachspieler kennt} 10... Nbd7 11. Qc2 Nh5
12. Bxh5 gxh5 13. Nc4 Ne5 14. Ne3 Qh4 15. Bd2 Ng4 16. Nxg4 hxg4 17. Bf4 Qf6 18.
g3 Bd7 19. a4 b6 20. Rfe1 a6 21. Re2 b5 22. Rae1 Qg6 23. b3 Re7 24. Qd3 Rb8 25.
axb5 axb5 26. b4 c4 27. Qd2 Rbe8 28. Re3 h5 29. R3e2 Kh7 30. Re3 Kg8 31. R3e2
Bxc3 32. Qxc3 Rxe4 33. Rxe4 Rxe4 34. Rxe4 Qxe4 35. Bh6 Qg6 36. Bc1 Qb1 37. Kf1
Bf5 38. Ke2 Qe4+ 39. Qe3 Qc2+ 40. Qd2 Qb3 41. Qd4 Bd3+ {0-1 (41) Spassky,B 
(2660)-Fischer,R (2785) Reykjavik 1972}) 11. a4 Nbd7 12. Qc2 Nh5 {[#] Auf
Fischers Spuren.} 13. Bxh5 gxh5 14. Nd1 {Das spielte Gligoric kurz nach dem
WM-Kampf gegen Browne anstelle von Spasskis Sc4.} Ne5 15. h3 {Laznickas
Neuerung, 43 Jahre später. Der schwarze Springer kommt nicht mehr nach g4.} (
15. Ne3 Qh4 16. Ra3 Bd7 17. f4 Ng4 18. Nxg4 hxg4 19. Nc4 Qe7 20. e5 dxe5 21.
fxe5 Bxe5 22. Nxe5 Qxe5 23. Qxc5 Rac8 24. Qf2 f5 25. h3 Rc4 26. Bf4 Qg7 27.
hxg4 fxg4 28. Re3 Rf8 29. g3 h5 30. Qd2 Qd4 31. Qxd4 Rxd4 32. Re5 Rxa4 33. Rg5+
Kh7 34. Rxh5+ Kg7 35. Rg5+ Kh7 36. Kg2 Rf6 37. Re1 {1-0 (37) Gligoric,S (2575)
-Browne,W (2530) San Antonio 1972}) 15... Qh4 {Ohne die Möglichkeit zu Sg4
steht die Dame auf h4 deplatziert.} (15... Qe7 16. Ra3 Bd7 17. f4 Ng6 18. f5
Ne5 19. Rg3 f6 $14) 16. Ra3 Bd7 17. f4 {Der Vorstoß des f-Bauern sorgt nun im
schwarzen Lager für mächtige Unordnung.} Ng6 18. Nc4 Bd4+ 19. Kh1 Qe7 20. f5
Ne5 21. Rg3+ Kh8 {[#]} 22. f6 $18 Qf8 23. Nb6 Rac8 24. Rg7 c4 25. Nxd7 Nxd7 {
[#]} 26. e5 1-0

[Event "Altensteig"]
[Site "Altensteig"]
[Date "1995.??.??"]
[Round "11"]
[White "Bischoff, Klaus"]
[Black "Luther, Thomas"]
[Result "1/2-1/2"]
[ECO "A77"]
[WhiteElo "2550"]
[BlackElo "2550"]
[Annotator "Stohl,I"]
[PlyCount "69"]
[EventDate "1995.08.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "12"]
[SourceTitle "CBM 049"]
[Source "ChessBase"]
[SourceDate "1995.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.12.01"]
[SourceQuality "1"]

1. Nf3 {Giese} Nf6 2. c4 e6 3. d4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 a6
(7... Nbd7 8. e4 Bg7 9. Nc4 Nb6 10. Ne3 O-O 11. Bd3 Re8 12. O-O Bd7 13. a4 a6
14. Re1 Rb8 15. g3 Qc7 16. a5 Nc8 17. f3 Na7 18. Nc4 Bb5 19. Bf4 Bxc4 20. Bxc4
Nd7 21. Be3 f5 22. Qd2 Ne5 23. Be2 Nf7 24. Kg2 fxe4 25. Nxe4 Nb5 26. Rac1 Qd7
27. b4 $16 {Ftacnik,L-Poloch,P/Sumperk ch-CS/1984/}) 8. a4 Nbd7 9. e4 Bg7 10.
Be2 (10. Nc4 $5 Nb6 11. Ne3 O-O 12. Bd3 {-7...Nbd7}) 10... O-O 11. Qc2 (11. O-O
$142 Re8 12. f4 $1 (12. Ra3 Ne5 13. Qc2 g5 14. f3 Nh5 15. g3 Bh3 16. Rf2 Ng6
17. Bf1 Bc8 18. Nc4 Rf8 19. Be3 f5 20. exf5 Bxf5 21. Qd1 Bxc3 22. bxc3 Ng7 23.
Bc1 Qf6 24. Rb3 Rf7 25. Ne3 Ne5 26. c4 $14 {Nepomnishay,M-Notkin,M/St.
Petersburg op/1995/}) 12... c4 13. Kh1 Nc5 14. e5 dxe5 15. fxe5 Rxe5 16. Nxc4
Rf5 17. Bf4 (17. Bf3 b6 18. Be3 Rb8 19. Bd4 a5 20. Ne5 Ba6 21. Nc6 Qd6 22. Re1
Re8 23. Rxe8+ Nxe8 24. Qe1 Kf8 25. Bxc5 Qxc5 26. Ne4 Qxd5 27. Ng3 Qe6 28. Nxf5
Qxe1+ 29. Rxe1 gxf5 30. b3 $16 {Ho Van Huynh-El Taher,F/Manila olm/1992/})
17... Nh5 18. Be3 Bxc3 19. Rxf5 Bxf5 20. bxc3 Rc8 21. Bxh5 gxh5 22. Bxc5 Rxc5
23. Ne3 Bg6 24. Qd4 Ra5 25. d6 b5 26. Nd5 f5 27. Ne7+ {1-0/Schmidt,Wl-Nun,Jo/
Trnava/1985/}) 11... Re8 12. O-O Rb8 13. a5 Qc7 (13... b5 $6 14. axb6 Nxb6 (
14... Qxb6 15. Nc4 $16) 15. Nb3 Ra8 16. Na5 Qc7 17. Bf4 Nfd7 18. Nc6 $36 {
Hadjiyiannis,C-Grivas,E/Haifa ETC/1989/}) (13... Ne5 $5 14. b3 (14. Ra3 b5 15.
axb6 Rxb6 16. Re1 $6 {[%csl Rf2] ><f2} Nfg4 17. h3 Nxf2 $1 18. Kxf2 Qh4+ 19.
Kf1 Bxh3 20. gxh3 Qxh3+ 21. Kf2 Qh2+ 22. Kf1 Bf6 $3 {[%cal Rf6h4] /\Bh4,0-1/
Guliev,S-Minasjan,A/URS-chT Azov/1991/}) 14... g5 15. Bb2 Ng6 16. Rfe1 Nf4 17.
Bf1 Ng4 18. Nc4 Ne5 19. Na4 Bd7 20. Nab6 Bb5 21. Nxe5 Bxe5 22. Bxe5 Rxe5 23. b4
Bxf1 24. Kxf1 cxb4 25. Rab1 Qe7 26. Rxb4 Re8 $132 {Karolyi jr,T-Forintos,G/
HUN-ch/1986/}) 14. Ra3 (14. f4 {[%csl Gd5,Ge4,Gf4] (),[+]} b5 15. axb6 Nxb6 $5
(15... Rxb6 16. Nc4 $36) 16. h3 (16. Bf3 Ng4 $132) (16. Bxa6 $2 Ra8 $17) 16...
c4 $13) (14. Nc4 $5 b5 (14... Ne5 15. Nb6 $14) 15. axb6 Nxb6 16. Na5 $14) (14.
b3 Nxe4 $5 15. Ndxe4 Rxe4 16. Qxe4 Bxc3 17. Ra2 Nf6 $44) 14... h6 15. b3 g5 $1
{[%csl Ge5,Gf4] A typical Benoni move, maintaining control over the dark
squares on the King-side. (e5,f4)} 16. Bb2 $6 (16. Nd1 $2 Nxd5) (16. Nc4 $142
$5 Ne5 17. Nxe5 Rxe5 18. f4 gxf4 19. Bxf4 Re7 $13) 16... Ne5 17. Nd1 Ng6 18.
Bc4 (18. Ne3 $6 Nxe4 $1 19. Bxg7 (19. Nxe4 Bxb2 20. Nxd6 Bxa3 21. Nxe8 Qe7 $19)
19... Nxd2 $15) 18... Qe7 $15 19. Nc3 (19. f3 {[%cal Yd1e3] /\Ne3} g4 $1 $36)
19... Ng4 20. Raa1 Bd7 21. Ne2 N4e5 22. Ng3 (22. f4 $2 Ng4 $36) 22... Nf4 23.
Rfe1 h5 24. Ngf1 (24. Nf5 Bxf5 25. exf5 Qf6 26. Rab1 g4 $15 {/\} 27. Ne4 $2
Qxf5) 24... Qf6 {[%cal Re5f3] /\Nf3} 25. Rab1 Nxg2 $6 {[%csl Rf2,Rf3,Rh3] a
"forced draw-sacrifice" ein Opfer, das forciert zu einem Dauerschach fьhrt} (
25... Qg6 $5 $15 {[%cal Yg5g4,Yh5h4] /\g4,h4|^>>}) 26. Kxg2 Bh3+ $1 27. Kg1 $8
(27. Kxh3 {Giese} Qxf2 28. Ng3 g4+ 29. Kh4 Bf6+ 30. Kxh5 Qxh2#) (27. Kh1 {Giese
} Qxf2 $19) 27... Nf3+ (27... Qf4 $2 28. Re3 $16) 28. Nxf3 (28. Kh1 $2 Nxe1 {
[%csl Rc2]} 29. Rxe1 (29. Bxf6 {Giese} Bg2+ $1 {[%csl Re4][%cal Gg2e4,Gg2h1]}
30. Kg1 Nxc2 $19) 29... Qxf2 30. Re2 Bg2#) 28... Qxf3 29. Ne3 Rxe4 {[%cal
Ye4g4]} 30. Bf1 $1 $8 (30. Bxg7 $2 Rg4+ 31. Nxg4 Qg2#) 30... Rg4+ $10 (30...
Bxf1 31. Kxf1 Rbe8 $5 $44) 31. Nxg4 Qxg4+ 32. Kh1 Qf3+ 33. Kg1 Qg4+ 34. Kh1
Qf3+ 35. Kg1 1/2-1/2

[Event "Sigeman & Co 07th"]
[Site "Malmo"]
[Date "1999.06.15"]
[Round "7"]
[White "Gelfand, Boris"]
[Black "Hall, Jesper"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2691"]
[BlackElo "2486"]
[Annotator "Stohl,I"]
[PlyCount "80"]
[EventDate "1999.06.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "14"]
[SourceTitle "CBM 072"]
[Source "ChessBase"]
[SourceDate "1999.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Bg7 8. e4
O-O 9. Be2 Re8 10. O-O Nbd7 11. a4 Ne5 (11... g5 12. Re1 $5 Ne5 13. Nf1 g4 14.
Ng3 $36) 12. Qc2 g5 $5 {[%csl Rf5][%cal Yc3d1,Yd1e3,Yf1e1,Yd2f1,Yf1g3] This
line of the modern Benoni is somewhat untypical. Compared to the variations
with Na6-c7 Black has no realistic chances for << play with b5. On the other
hand he has better central control, emphasized by g5, and it's not easy for
White to play in the [+] with f4. White therefore shifts his attention to ><f5,
(e.g.Nd1-e3,Re1,Nf1-g3) but this costs quite a lot of time.} (12... Nh5 13.
Bxh5 gxh5 14. Nd1 $1 $36) 13. Ra3 {The most usual move, but certainly not the
only playable attempt.} ({Interesting is} 13. Re1 $5 g4 14. Nf1 Nh5 15. Ng3
Nxg3 16. hxg3 h5 17. Bf4 Ng6 18. Bb5 Rf8 19. Qd2 Nxf4 20. gxf4 a6 21. Bd3 g3
22. e5 Re8 23. Ne4 gxf2+ 24. Qxf2 dxe5 25. f5 Qxd5 {Friedgood,D-Povah,N/London/
1979/} 26. f6 $1 Qxd3 27. Rad1 $40) (13. Rb1 b6 (13... Ng6 $5) (13... g4 $5)
14. b3 a6 $6 15. Nc4 Nfg4 16. Bd2 Nxc4 17. bxc4 Be5 18. Bxg4 Bxg4 19. Rb3 h6
20. Rfb1 Rb8 21. a5 $16 {Syre,C-Petrik,K/Zinnowitz/1974/}) (13. b3 $5 g4 14.
Bb2 Nh5 15. g3 f5 16. exf5 Qg5 17. Nce4 Qxf5 18. f4 gxf3 19. Bxf3 Qg6 20. Bxh5
Qxh5 21. Nxd6 Bh3 22. Nxe8 Rxe8 23. d6 Rd8 24. Ne4 Bxf1 25. Bxe5 Bxe5 26. Rxf1
$18 {Garcia,G-Browne,W/Las Palmas/1974/}) (13. Nd1 $5 Ng6 (13... g4 14. Bb5 Rf8
15. Re1 Nh5 16. Ne3 Nf4 17. Rb1 a6 18. Bf1 Qa5 19. Nec4 Qb4 20. Re3 b5 21. Rb3
Qxa4 22. Nb6 Qa5 23. Nxa8 Bb7 24. Nc4 Nxc4 25. Bxf4 Ne5 26. Rg3 $16 {Dlugy,
M-Findlay,I/Toronto/1989/}) 14. Ne3 Kh8 15. Rb1 Nf4 16. Bb5 Rg8 17. b4 a6 18.
Bd3 cxb4 19. Rxb4 Nd7 20. Bb2 Ne5 21. Bxe5 Bxe5 22. Ndc4 f6 23. Rc1 $36 {
Littke,A-Ardaman,M/Philadelphia/1992/}) ({Too soft seems} 13. Nc4 Nxc4 14. Bxc4
Ng4 15. Ne2 Ne5 16. Bb5 (16. Ng3 g4 17. Kh1 a6 18. Be2 Qh4 19. Ra3 Rb8 20. a5
Bd7 21. Qd2 c4 22. Qb4 Bf8 23. Be3 Qf6 24. Ba7 Rbd8 25. Bd4 Rb8 26. Bxc4 Qg6
27. Be2 h5 $44 {Flear,G-Nunn,J/Brighton/1980/}) 16... Rf8 17. Ng3 g4 18. Bf4
Ng6 19. Bd2 a6 20. Be2 Re8 21. f4 gxf3 22. Bxf3 Bd4+ 23. Kh1 $13 {Goehring,
K-Holm,S/FRG-chT/1980/}) 13... Qe7 (13... a6 14. Nd1 $5 (14. Re1 Bd7 15. a5 h6
16. b3 Rc8 17. Bb2 g4 18. Nd1 Nh5 19. Ne3 Nf4 20. Bxe5 Nxe2+ 21. Rxe2 Bxe5 22.
Ndc4 {Hansen,C-Nielsen,P/Esbjerg/1997/} Qh4 $5 $132) 14... Rb8 15. a5 Ng6 16.
Ne3 Nf4 17. Bd1 h5 18. Nec4 h4 19. Rb3 Qe7 20. Rb6 Nxe4 21. Qxe4 Qxe4 22. Nxe4
Rxe4 23. Nxd6 Re5 24. Bxf4 gxf4 25. Bf3 $16 {Portisch,L-Suba,M/Tunis izt/1985/}
) (13... Ng6 14. Nc4 Nf4 (14... Ng4 15. Bxg4 Bxg4 16. Nb5 Be5 17. Nxe5 Rxe5 18.
Rg3 f5 19. f4 gxf4 20. Bxf4 Nxf4 21. Rxf4 $40 {Mambrini,A-Guido,F/Montecatini
Terme/1994/}) 15. Bf3 Qe7 16. Bxf4 gxf4 17. Qd2 Bh6 18. Nb5 Rd8 19. Re1 Ng4 20.
Bxg4 Bxg4 21. e5 dxe5 22. Nxe5 Qg5 23. Nxg4 (23. d6 $5 $40) 23... Qxg4 24. Rf3
a6 25. Nc3 Rd6 $132 {Rajkovic,D-Hulak,K/Budva zt/1981/}) ({Not often played,
but possibly not so bad is} 13... Nfg4 $5 14. Nd1 Rf8 ({A model of White's
strategy is} 14... Ng6 $6 15. Bxg4 Bxg4 16. Ne3 Bd7 17. Ndc4 Qe7 18. f3 h5 19.
Bd2 g4 20. fxg4 hxg4 21. Bc3 Bxc3 22. Rxc3 Ne5 23. Qf2 Nxc4 24. Nxc4 f6 25. Rg3
$16 {Portisch,L-Winants,L/Brussels/1988/}) 15. f3 Nh6 16. Ne3 f5 17. Ndc4 f4
18. Nxe5 Bxe5 19. Nc4 Bd4+ 20. Kh1 Nf7 21. Bd2 Ne5 $13 {Wessman,R-Meric,T/
EUChJ Arnhem/1987/}) (13... g4 14. Nc4 Nxc4 (14... Nh5 15. Nxe5 Bxe5 16. g3 Qf6
17. Nb5 Qe7 18. f4 gxf3 19. Raxf3 f6 20. R3f2 Ng7 21. Bf4 Bh3 22. Bxe5 Qxe5 23.
Rd1 Qxe4 24. Bd3 Qb4 25. Bxh7+ Kh8 26. Nc3 $40 {Quiroga,F-Andres,M/Pico City/
1996/}) 15. Bxc4 Nh5 16. g3 Be5 17. Nd1 Ng7 18. Ne3 Qf6 19. Bd3 Qg6 20. Bd2 Rb8
21. Bc3 Qh6 22. Nc4 Bxc3 23. bxc3 b6 24. Raa1 Ba6 25. Nd2 Bxd3 26. Qxd3 Re7 27.
f3 gxf3 28. Rxf3 $16 {Lukacs,P-Kovacevic,V/Vrnjacka Banja/1988/}) (13... Kh8 $5
14. Nc4 Nfg4 15. Nxe5 Nxe5 16. f4 gxf4 17. Bxf4 a6 18. Qd2 (18. Nd1 $5 $13)
18... Bf6 19. Kh1 Rb8 20. h3 Ng6 21. Bh6 Rg8 22. Nd1 Ne5 23. Nf2 Bd7 24. Bf4
Qe7 $15 {Timoshchenko,G-Lobron,E/Moscow GMA/1989/}) 14. a5 $5 $146 {[%mdl 8]
This novelty is an improvement on the often played} (14. Re1 Nfg4 $1 (14... Ng6
15. Nf1 Nf4 16. Ng3 Ng4 17. Nd1 Bd4 18. Bxg4 Bxg4 19. Ne3 Bxe3 20. Raxe3 f6 21.
b3 Qf7 22. h3 Bh5 23. Nf5 Qd7 24. Qc3 Re5 25. Qc4 Rf8 26. Bb2 $40 {Kindermann,
S-Danner,G/Budapest/1985/}) (14... a6 15. a5 Rb8 16. Nf1 h6 17. Ng3 Ng6 18. Na4
Nh4 19. Bd2 Bd7 20. Nb6 Bb5 21. Bc3 Rbd8 22. Rb3 Bxe2 23. Rxe2 Ng4 24. Bxg7
Kxg7 25. Nc4 $14 {Van der Sterren,P-Maiwald,J/BL 9697/1997/}) 15. Nf1 Ng6 16.
Qd1 (16. Ne3 Nxe3 17. Bxe3 Rf8 18. Qd2 h6 19. Bf1 Ne5 20. f3 f5 21. exf5 Bxf5
22. Bf2 Qf6 23. Ne4 Qg6 24. b4 b6 25. Bg3 g4 $36 {Georgiev,K-Lalev,D/Sofia/
1982/}) (16. Ng3 $142 $5 $14) 16... Nh6 17. Ng3 a6 18. Be3 f5 19. exf5 Nxf5 20.
Nxf5 Bxf5 21. Qd2 h6 22. Raa1 Qf6 23. Bd3 Ne5 24. Be2 Qg6 25. f3 g4 26. fxg4
Bxg4 27. Kh1 Bxe2 28. Qxe2 Nd3 $17 {Najdorf,M-Timman,J/Bugojno/1982/}) 14... h6
$6 {Too passive.} (14... Nfg4 $142 15. Nd1 $5 (15. h3 Nh6 {/\f5<=>}) 15... Rf8
$13) 15. Nd1 (15. Bb5 Rf8 16. Nd1 {leads to the game position 2 moves earlier.}
) 15... Bd7 16. Nc3 $5 {/\Bb5 White retracts his previous move.} (16. Ne3 b5
17. axb6 axb6 $13) 16... Rf8 {[%csl Rf5] Allowing the exchange of B would
favour White. (><f5)} 17. Bb5 Bc8 (17... Bxb5 18. Nxb5 a6 19. Nc3 $36) 18. Nd1
Nh5 (18... Nfg4 19. h3 {now already makes little sense, as Black doesn't have
Nh6/\f5.}) 19. Ne3 a6 20. Be2 Nf4 21. Bd1 $14 {[%csl Rb6,Rf5][%cal Yd2c4,Yg2g3,
Yf2f4,Yf1e1,Yd2f1,Yf1g3] ><f5,b6,/\Re1,Nf1-g3,g3,f4 etc. White has cleverly
quenched Black's temporary activity and now intends to start his own play.} f5
$6 {This fails tactically.} (21... Bd7 $142 22. Ndc4 (22. g3 Nh3+ 23. Kg2 g4
24. f4 gxf3+ 25. Nxf3 Nxf3 26. Bxf3 Ng5 $11) 22... Nxc4 23. Nxc4 Bb5 $14) 22.
exf5 Qf7 23. Ne4 (23. g4 $5 Nxd5 24. Ne4 $16) 23... Rd8 (23... Bxf5 $142 24.
Nxf5 Qxf5 25. Bxf4 (25. Nxd6 Qxc2 26. Bxc2 Ne2+ 27. Kh1 Nxc1 28. Rxc1 Ng4 $36)
25... Qxf4 26. Nxd6 $16) 24. g4 $40 Nxd5 $8 {Otherwise the whole operation
doesn't make sense.} 25. Nxd5 Qxd5 26. h4 $1 b5 (26... gxh4 27. Bxh6 $16 {
[%csl Rg8] /+-,->ע}) 27. hxg5 hxg5 28. Bxg5 Bb7 29. Bxd8 Rxd8 (29... Qxe4 30.
Qxe4 Bxe4 31. Be7 Nc4 32. Rh3 Bxb2 33. Bb3 $18) 30. Re3 Nc4 31. Ree1 Qd4 (31...
Nxb2 32. Bf3 Qd4 33. g5 $18) 32. b3 Ne5 (32... Nxa5 33. Ng5 $18) 33. Qd2 Nd3 (
33... Qxd2 34. Nxd2 Nc6 35. Re3 $18 {[%csl Gf5,Gg4] o^f,g is simply hopeless,
but now White's Q joins the attack.}) 34. Qg5 Rd7 35. Bf3 $1 $18 {The safest,
by returning some material White's attack breaks through.} (35. Nxc5 Nf4 $5
$132 {leads to needless complications.}) 35... Nxe1 36. Rxe1 Bxe4 (36... d5 37.
Nxc5 $1 Qxc5 38. Re8+ $18) (36... Qe5 37. Qg6 {/\f6,Nf6!} Rf7 38. Qxf7+ Kxf7
39. Ng5+ Kf6 40. Nh7+ Kf7 41. Rxe5 Bxf3 42. Re6 Bxg4 43. Ng5+ $18) 37. Rxe4
Qa1+ 38. Kg2 Qf6 39. Qh5 (39. Re8+ Kh7 40. Qh5+ Qh6 41. g5 $18) 39... Rd8 40.
Re6 Qf7 $138 (40... Qf7 41. Qg5 Rd7 42. Bd5 $18 (42. f6 Qxe6 43. Bd5 $18)) 1-0

[Event "FIDE-Wch k.o."]
[Site "Las Vegas"]
[Date "1999.08.28"]
[Round "7.6"]
[White "Khalifman, Alexander"]
[Black "Akopian, Vladimir Eduardovic"]
[Result "1/2-1/2"]
[ECO "A77"]
[WhiteElo "2628"]
[BlackElo "2646"]
[Annotator "Stohl,I"]
[PlyCount "80"]
[EventDate "1999.07.31"]
[EventType "k.o."]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 072"]
[Source "ChessBase"]
[SourceDate "1999.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.10.01"]
[SourceQuality "1"]

{[%mdl 2] When analyzing this game one has to bear in mind the match
situation-Khalifman was leading and a draw gives him the overall victory in
Las Vegas. So he will try to avoid any unnecessary risk, while Akopiam has to
strive for complications at any cost.} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 {
This is objectively better than e.g.} (4. g3 {White doesn't want to make
concessions from the very beginning.}) 4... exd5 5. cxd5 d6 6. Nc3 a6 (6... g6
7. e4 Bg7 ({but more accurate was} 7... a6 $5 {/\} 8. a4 Bg4 $13) 8. h3 O-O 9.
Bd3 {leads to a line in which Black's chances to create confusion are very
slight.}) 7. a4 g6 8. Nd2 $1 {The insertion of a4-a6 in the classical line is
known to favour White.} Nbd7 9. e4 Bg7 10. Be2 (10. Nc4 $5 Nb6 11. Ne3 O-O 12.
Bd3 Re8 13. O-O Rb8 14. Bd2 Nbd7 15. a5 Ne5 16. Be2 g5 17. f3 h6 18. Na4 Ng6
19. Nb6 Nd7 20. Nxc8 Rxc8 21. Nf5 $16 {Ehlvest,J-Barlov,D/Zagreb izt/1987/})
10... O-O 11. O-O Re8 12. Qc2 (12. f4 $1 $36 {is the most ambitious move.})
12... Rb8 13. Ra3 (13. a5 Qe7 14. Ra3 Ne5 15. Re1 Nfg4 16. Nf1 g5 (16... f5
$142 $5 {/\} 17. f4 Nc6 $1 18. Bxg4 Nd4 $13) 17. h3 Nh6 18. Ng3 Ng6 19. Na4 Bd7
20. Nb6 Bb5 21. Bd2 Nf4 22. Bc4 Be5 23. Rf3 Rbd8 24. Be3 Qf8 25. h4 gxh4 26.
Bxf4 Bxf4 27. Rxf4 hxg3 28. Re3 $1 $36 {Miles,A-Koenig,W/Bad Woerishofen/1990/}
) 13... Qe7 (13... b6 14. Kh1 (14. b3 Ne5 15. h3 g5 16. Nc4 g4 17. Nxe5 Rxe5
18. Bf4 Re8 19. hxg4 Nxg4 20. Bxg4 Bxg4 21. Nd1 Qf6 22. Bh2 Qg6 23. f3 Bd4+ 24.
Kh1 Bc8 25. Nc3 f5 $40 {Ivanov,I-Garcia Gonzales,G/Cienfuegos/1980/}) 14... Ne5
15. b3 Rf8 16. Bb2 Nh5 $6 17. Bxh5 gxh5 18. Nd1 f5 19. f4 Ng4 20. Bxg7 Kxg7 21.
Qc3+ Kg8 22. Ra1 Rb7 23. Ne3 Nxe3 24. Qxe3 Rg7 25. Rae1 $14 {Timman,J-Garcia
Gonzales,G/Rio de Janeiro izt/1979/}) (13... Qc7 14. a5 h6 (14... b5 15. axb6
Rxb6 16. f4 Nb8 17. Nc4 Rb4 18. e5 Bf5 19. Qd1 dxe5 20. fxe5 Rxc4 21. d6 Qb7
22. Bxc4 Rxe5 23. Qb3 Qa7 24. Bf4 Re8 25. Nb5 Qd7 26. Nc7 $18 {Guliev,
S-Pueschel,W/Berlin/1998/}) 15. b3 (15. Nc4 $5) 15... g5 16. Bb2 Ne5 17. Nd1
Ng6 18. Bc4 Qe7 19. Nc3 Ng4 20. Raa1 Bd7 21. Ne2 N4e5 22. Ng3 Nf4 23. Rfe1 h5
24. Ngf1 Qf6 25. Rab1 {Bischoff,K-Luther,T/Altensteig/1995/} Qg6 $5 $36 {
[%cal Gg5g4,Gh5h4] >>}) (13... Ne5 $5 $13) 14. h3 $146 (14. a5 {--> Miles-Konig
}) 14... h6 15. a5 g5 16. Nc4 $6 (16. Re1 $142 $5 Ne5 17. Nd1) 16... Ne5 $6 ({
This was a welcome chance for Black:} 16... Nxe4 $142 $1 17. Nxe4 Qxe4 18. Qxe4
Rxe4 19. Bd3 Rd4 20. Be3 (20. Nxd6 Rxd5 21. Nxc8 Rxc8 22. Be4 Rd6 23. Rb3 (23.
Bxb7 $6 Rb8 24. Rb3 c4 25. Rb4 Nc5 26. Be3 Nxb7 27. Ba7 Rbd8 28. Rxb7 R6d7 $19)
23... c4 (23... b5 $5 24. axb6 Rxb6 25. Rxb6 Nxb6 $15) 24. Rxb7 Nc5 $36) 20...
Rxd5 21. Be4 Re5 22. Nxe5 Nxe5 {[%cal Re5c4] /\Nc4} 23. Bd5 (23. b3 Be6 24. Rd1
d5 $1 $15) 23... Be6 $15) 17. Nxe5 (17. Nb6 $1 $14) 17... Qxe5 18. f4 Qd4+ 19.
Kh2 (19. Kh1 $2 Nxe4 $17) 19... b5 (19... Nxe4 $2 20. Ra4 $18) 20. axb6 Rxb6
21. e5 $1 $13 {This typical Benoni break is the best move.} (21. fxg5 hxg5 22.
Bxg5 Nxe4 $36) (21. Bf3 gxf4 22. Ne2 Qb4 23. Nxf4 Nd7 $13 {[%csl Re5] ><e5})
21... dxe5 22. fxg5 hxg5 23. Bxg5 e4 24. Na4 Rd6 25. Rg3 (25. Qxc5 Nxd5 $1 26.
Qxd4 (26. Qxd6 $2 Be5+ $17) 26... Bxd4 27. Nc3 $11) 25... Nxd5 26. Bh5 (26. Rd1
Qe5 27. Qxc5 Rg6 $36) 26... Rf8 (26... Nf6 27. Be2 $142 $1 (27. Be3 Nxh5 $1 (
27... Qe5 $2 28. Bf4) (27... Qd3 $143 28. Qf2) 28. Bxd4 Nxg3 29. Kxg3 (29. Bxg7
Nxf1+ 30. Kg1 e3 $17) 29... cxd4 $40) 27... Nd5 $11 {Black has hardly anything
better than repetition.}) 27. Nc3 Kh8 (27... f5 $2 28. Rd1 Qe5 29. Nxd5 Rxd5
30. Bh6 $18) (27... Be5 28. Bf4+ Kh8 29. Nxd5 Rxd5 30. Bxf7 $1 Be6 31. Bxe5+
Qxe5 32. Qc1 $1 $18) 28. Rxf7 $1 {Although this leads to a very drawish
endgame, objectively it promises somewhat more than the unclear} (28. Nxe4 Be5
29. Nxd6 Bxd6 30. Rxf7 (30. Rff3 Be6 31. Rd3 (31. Kh1 $2 Bxg3 32. Rxg3 Qe5 33.
Qf2 Rg8 34. h4 f6 $19) 31... Qe5 32. Qd2 $13) 30... Rxf7 31. Bxf7 Ne3 $1 (31...
Bxg3+ 32. Kxg3 Qe5+ 33. Kh4 $16) 32. Qe2 (32. Bxe3 $2 Bxg3+ 33. Kxg3 Qxe3+ 34.
Kh2 Qf4+ $17) 32... Bxg3+ 33. Kxg3 Qe5+ 34. Kf2 (34. Bf4 $2 Nf5+ $19) 34...
Qxg5 35. Qxe3 Qf6+ 36. Qf3 Qxb2+ 37. Kg1 Qd4+ $11) 28... Rxf7 29. Bxf7 Be5 (
29... Nb4 $2 30. Qe2 Be5 31. Qh5+ Kg7 32. Bf4+ $18) (29... Nxc3 $143 30. bxc3
Qe5 31. Qe2 Bf5 32. Bc4 $36) 30. Nxd5 Rxd5 (30... Bxg3+ 31. Kxg3 Rxd5 32. Bxd5
Qxd5 33. Qc3+ Kh7 34. Be3 $14 {[%csl Gg2,Gh3,Rh7] עh7,o^g,h.}) 31. Bxd5 Qxd5
32. Qd2 $1 (32. Be3 Qd6 {and the unpinning will take longer.}) 32... Qxd2 (
32... Qd6 33. Qxd6 Bxd6 34. Bh4 e3 35. Kg1 $11) 33. Bxd2 Kh7 34. Bc3 (34. Be1 {
/\Kg1=}) 34... Bf4 35. Be1 e3 36. Kg1 Bxg3 37. Bxg3 a5 (37... Bb7 38. Kf1 $11)
38. Bf4 e2 39. Kf2 Bb7 (39... Ba6 $143 40. Bd6) 40. Kxe2 (40. g3 Bg2 41. h4 Bf3
$11) (40. g4 Bg2 41. h4 Bh3 42. g5 Bg4 $11) ({White isn't interested in
torturing Black anymore with} 40. Bd2 $5 a4 41. g4 Ba6 42. h4 $14) 40... Bxg2
1/2-1/2

[Event "Interzonal-13a"]
[Site "Tunis"]
[Date "1985.05.19"]
[Round "17"]
[White "Portisch, Lajos"]
[Black "Suba, Mihai"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2635"]
[BlackElo "2465"]
[Annotator "Stohl,I"]
[PlyCount "59"]
[EventDate "1985.04.27"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "TUN"]
[EventCategory "11"]
[SourceTitle "IZT"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Nbd7 8. e4
Bg7 9. Be2 O-O 10. O-O Re8 11. a4 g5 12. Qc2 Ne5 13. Ra3 a6 14. Nd1 $5 Rb8 (
14... b6 15. Ne3 Rb8 16. Re1 Ng6 17. f3 b5 18. axb5 axb5 19. b3 Qb6 20. Ndf1
Nh5 $13 {Andruet,G-Renet,O/Marseille/1988/}) 15. a5 $1 $14 Ng6 16. Ne3 Nf4 17.
Bd1 h5 (17... Bd7 $142 18. Nec4 Bb5 $14) 18. Nec4 h4 19. Rb3 Qe7 20. Rb6 $1
Nxe4 (20... Rd8 21. b4 cxb4 22. Bb2 $36) 21. Qxe4 Qxe4 22. Nxe4 Rxe4 23. Nxd6
Re5 24. Bxf4 gxf4 25. Bf3 $16 {ק} Bf5 (25... Bf8 $5 26. Nxc8 Rxc8 27. Rxb7 $16
) 26. Rxb7 Rxb7 27. Nxb7 c4 28. h3 Bf8 29. Rd1 Bd7 30. Rd4 $138 1-0

[Event "Rovno"]
[Site "Rovno"]
[Date "2000.??.??"]
[Round "12"]
[White "Rakhmangulov, Andrei"]
[Black "Smetankin, Stanislav"]
[Result "0-1"]
[ECO "A77"]
[WhiteElo "2435"]
[BlackElo "2401"]
[Annotator "Stohl,I"]
[PlyCount "46"]
[EventDate "2000.01.20"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "UKR"]
[EventCategory "8"]
[SourceTitle "CBM 076"]
[Source "ChessBase"]
[SourceDate "2000.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2000.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 g6 6. Nc3 d6 7. e4 Bg7 8. Be2
O-O 9. O-O Re8 10. Nd2 a6 11. a4 Nbd7 12. Qc2 (12. f4 $142 $1 $36 {With the
interpolated moves a4 and a6 this position is advantageous for White.}) 12...
Ne5 (12... Rb8 13. Ra3 Qe7 14. h3 h6 15. a5 g5 16. Nc4 $6 Ne5 17. Nxe5 Qxe5 18.
f4 Qd4+ 19. Kh2 b5 20. axb6 Rxb6 21. e5 dxe5 22. fxg5 hxg5 23. Bxg5 e4 24. Na4
Rd6 25. Rg3 Nxd5 26. Bh5 Rf8 27. Nc3 $13 {Khalifman,A-Akopian,V/FIDE-WCh/1999/}
) 13. f4 $2 {[%mdl 8192] One move later this is a serious tactical blunder,
which allows Black a sacrificial attack. White grossly underestimates Black's
combinational potential.} (13. Re1 g5 14. Nf1 h6 15. Ng3 Ng6 16. Nd1 Qe7 17. f3
Nh4 18. Ne3 Kh8 19. Bd2 Bd7 20. a5 g4 21. Bc3 gxf3 22. gxf3 Rg8 23. Ng2 Nh7 24.
f4 Nxg2 25. Kxg2 Qh4 26. Qd2 f5 27. exf5 Bxf5 28. Kh1 Raf8 $132 {Zaja,I-Zelcic,
R/Pula/1997/}) (13. Ra3 $142 Rb8 14. a5 Qe7 (14... g5 15. Nd1 Ng6 16. Ne3 Qe7
17. f3 Rf8 18. Ndc4 Ne8 19. Kh1 Bd4 20. Rb3 Ng7 21. Rb6 Rd8 22. Bd1 h6 23. Bd2
Qf8 24. Qb3 Ra8 25. Bc3 $16 {Miles,A-Kovacevic,S/Mendrisio/1985/}) 15. Re1 Nh5
16. Bxh5 gxh5 17. Na4 f5 18. Nb6 f4 19. Nxc8 Rbxc8 20. Nc4 Rf8 21. Nxe5 Bxe5
22. Qe2 Qg5 23. Kh1 $13 {Krizsany,L-Parkanyi,A/Pecs/1998/}) 13... Neg4 14. Nc4
Nxe4 $1 {[%mdl 640]} 15. Nxe4 (15. Bxg4 Nxc3 16. Bf3 (16. Bxc8 Ne2+ $19) 16...
Bf5 17. Qb3 Bd4+ 18. Be3 Bxe3+ 19. Nxe3 Rxe3 20. bxc3 Qe7 21. a5 Re8 22. Qb2
Bd3 23. Rfc1 Be2 24. Bxe2 Rxe2 25. Qb1 Qe3+ $19 {Weiss Nowak,C-Lindemann,S/
BL-2N/1983/}) 15... Bd4+ 16. Nf2 (16. Kh1 $143 Nxh2 $1 17. Rd1 (17. g3 Nxf1 18.
Bxf1 Bf5 19. Ncd2 Qe7 20. Bd3 Qf8 $1 21. Nf3 Qh6+ 22. Nh2 c4 {0-1,Kahn,
E-Parkanyi,A/Budapest/2000/}) (17. Kxh2 $4 Qh4#) (17. f5 Nxf1 18. Bg5 Ng3+ $1
19. Kh2 f6 $19) 17... Qh4 (17... Ng4 18. Bxg4 (18. g3 Rxe4 19. Bxg4 Bxg4 20.
Qxe4 Bxd1 $19) 18... Qh4+ 19. Bh3 Rxe4 $5 (19... Bxh3 20. g3 Qh5 21. Rxd4 Bf5+
22. Kg1 cxd4 23. Nf6+ $13) 20. Qxe4 Bxh3 21. Rxd4 Bf5+ 22. Kg1 Bxe4 23. Rxe4
$13) 18. g3 $8 Qh3 19. Ng5 Qxg3 $19 {->}) 16... Bf5 17. Qd2 Rxe2 $1 18. Qxe2
Qh4 19. h3 Nxf2 20. Rxf2 (20. Be3 $142 $8 Nxh3+ 21. gxh3 Qg3+ 22. Qg2 Bxe3+ 23.
Nxe3 (23. Kh1 $2 Be4 $1 24. Qxe4 Qxh3#) 23... Qxe3+ 24. Kh2 {Scheipl,R-Hantke,
R/Hoechst/1955/} Be4 25. Qf2 Qb3 $17 {/-+}) 20... Bd3 $1 $19 {Overloading
White's defences. Black now wins all the material back.} 21. Qe1 (21. Qxd3
Qxf2+ 22. Kh2 Qg1+ 23. Kg3 Qe1+ 24. Kh2 (24. Kf3 Qf2+ 25. Kg4 f5+ $19) 24...
Bg1+ 25. Kh1 Bf2+ 26. Kh2 Qg1#) 21... Bxc4 (21... Qxf2+ $6 22. Qxf2 Bxf2+ 23.
Kxf2 Bxc4 24. Be3 $17) 22. Be3 (22. Bd2 Bxd5 $19) 22... Re8 23. Ra3 $6 (23. Rf3
Qe7 24. Kf2 (24. Ra3 Bxb2 $19) 24... Qf6 $1 {/\Re3-+} (24... Bxd5 25. Bxd4 Bxf3
(25... Qh4+ 26. g3 Rxe1 27. Rxe1 Qd8 28. Rfe3 $17) 26. Qxe7 Rxe7 27. Bxc5 dxc5
28. Kxf3 Rd7 $17) 25. Kg3 Bxb2 $19 {->}) 23... Qg3 (23... Qg3 24. Re2 Qxe1+ 25.
Rxe1 Bxb2 $19 {wins a whole R.}) 0-1

[Event "Frankfurt"]
[Site "Frankfurt"]
[Date "1990.??.??"]
[Round "?"]
[White "Alber, Horst"]
[Black "Werner, Dimo"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2340"]
[BlackElo "2350"]
[Annotator "Wahls,M"]
[PlyCount "73"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[EventCategory "7"]
[SourceTitle "CBM 020"]
[Source "ChessBase"]
[SourceDate "1991.02.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.02.01"]
[SourceQuality "1"]

1. d4 {Übrigens: mit Weiß spielt der Wegbereiter der gefürchteten Ampel(1.
Sf3, 2.Tg1, 3.g4). Benutzung auf eigene Gefahr.} Nf6 2. c4 e6 3. Nf3 c5 4. d5
exd5 5. cxd5 d6 6. Nc3 a6 7. a4 g6 8. e4 Bg7 9. Be2 O-O 10. Nd2 Re8 11. O-O
Nbd7 12. Qc2 Nh5 13. Bxh5 gxh5 14. Nc4 Ne5 15. Nxe5 Bxe5 16. Ne2 f5 17. f4 Bh8
18. e5 dxe5 19. Qxc5 exf4 20. Nxf4 Re4 21. Kh1 Bd4 22. Qa3 b6 23. Bd2 Be5 24.
Qg3+ Kf7 25. Qf3 Qh4 26. Nh3 Kg8 27. Rae1 Bb7 28. Qxf5 Bxd5 29. Rxe4 Qxe4 30.
Qxe4 Bxe4 31. Re1 Rd8 32. Rxe4 Bxb2 33. Be1 Rd1 34. Kg1 Bc3 35. Kf2 Bxe1+ 36.
Rxe1 Rd4 37. Re6 1-0

[Event "Prague op-A 09th"]
[Site "Prague"]
[Date "2010.01.13"]
[Round "7"]
[White "Zakhartsov, Viacheslav V"]
[Black "Kanovsky, David"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2562"]
[BlackElo "2471"]
[Annotator "Zakhartsov,Vi"]
[PlyCount "93"]
[EventDate "2010.01.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Bg7 8. e4
O-O 9. Be2 Re8 10. O-O Nbd7 11. a4 Ne5 12. Qc2 Bd7 (12... g5 {is the most
common.}) 13. Ra3 (13. f4 $2 {is too early:} Neg4 14. Nc4 Qe7 15. h3 (15. e5
dxe5 16. h3 exf4 17. hxg4 Nxg4 $19) 15... Nxe4 16. Nxe4 Qxe4 17. Qxe4 Rxe4 18.
Bxg4 Bxg4 19. Nxd6 Bd4+ 20. Kh2 Be2 21. Re1 Re7 {, and Black is better.}) 13...
g5 14. Re1 (14. Nd1 {was a more active continuation:} g4 15. Ne3 Nh5 16. f4
gxf3 17. Nxf3) 14... g4 15. Nf1 Nh5 16. Nd1 Qf6 17. Bb5 {In order to weaken
the f5-square, White wants to exchange bishops. On the other hand, the
d3-square in White's camp becomes weak too.} Bxb5 18. axb5 a6 (18... c4 $1 {
was very strong:} 19. Re2 Qg6 20. Ng3 Nxg3 21. hxg3 Nd3 22. Ra4 (22. Qxc4 Nxf2
$1 23. Rxf2 Rac8 24. Qd3 Rxc1 {, and Black is fine}) 22... Nxc1 23. Qxc1 Rxe4
24. Rxe4 Qxe4 25. Rxc4 Qxd5 26. Rc8+ Rxc8 27. Qxc8+ Bf8 28. Qxg4+ Kh8 29. Qe2
Kg8 {with roughly equal chances.}) 19. bxa6 Rxa6 20. Rxa6 bxa6 21. Ng3 Nxg3 22.
hxg3 c4 23. Re2 Nd3 {!?} 24. Qxc4 (24. Qa4 $1 {was a very strong intermediate
move:} Rb8 (24... Kf8 25. Qxc4 Qd4 26. Qxd4 Bxd4 27. Bh6+ Kg8 28. Rd2 {, and
White remains a pawn up}) 25. Be3 Qd8 (25... Nxb2 $4 26. Rxb2 Rxb2 27. Nxb2
Qxb2 28. Qe8+ Bf8 29. Bh6) 26. Qxc4 Nxb2 27. Nxb2 Bxb2 28. Rc2 $1 Be5 (28... a5
29. Qe2 {, winning the g4-pawn}) 29. Qxa6 {with a pawn up. However, this
advantage is hard to convert into a full point.}) 24... Qd4 25. Qxd4 (25. Qc6
Nxc1 26. Qxc1 (26. Qxe8+ $2 {is losing:} Bf8 27. Re1 Qd2 28. Kf1 (28. Rf1 Ne2+
29. Kh2 Qh6#) 28... Nd3) 26... Rxe4 27. Ne3 {with slightly better chances for
White due to the weakening position of Black's king.}) 25... Bxd4 26. Bf4 Nxf4
27. gxf4 f5 28. Kh2 Rxe4 (28... Kf7 29. f3 gxf3 30. gxf3 Kf6 {, and it is hard
to improve White's position.}) 29. Rxe4 fxe4 30. Kg3 h5 31. Kh4 (31. f5 {
gave nothing to White, despite his extra pawn:} Kg7 32. Kf4 Kf6 33. Kxe4 Bc5
34. Kf4 Bb4 35. Ne3 Bd2 36. g3 Bc1 37. b3 a5 38. Ke4 Bxe3 {!?} 39. fxe3 (39.
Kxe3 Kxf5 40. Kd4 Kg5 41. Kc4 h4 42. gxh4+ Kxh4 43. Kb5 Kh3 44. Kc6 Kg2 45.
Kxd6 Kxf2 46. Kc6 g3 47. d6 g2 48. d7 g1=Q 49. d8=Q Qc1+ 50. Kb5 Qc3 {is a draw
}) 39... Kg5 40. Kd4 Kxf5 41. e4+ Kf6 42. Ke3 Kg5 43. Ke2 Kf6 {with a draw.})
31... Kf7 {Incredibly, just this move turned out to be the decisive mistake.
In any case an ending "3 pawns versus bishop" comes out, and} (31... Kg7 $1 {
gave a draw to Black:} 32. Kxh5 g3 33. fxg3 e3 34. Nxe3 Bxe3 35. Kg5 a5 36. b3
Bf2 37. g4 Bg3 38. Kf5 Kh6 $1 39. g5+ Kh5 $1 40. Ke4 (40. g6 Kh6 41. Kf6 Bxf4)
40... Bh2 41. Kf3 Bg1 42. g4+ Kg6 43. Ke4 Bf2) 32. Kxh5 g3 33. fxg3 e3 34. Nxe3
Bxe3 35. Kg5 a5 36. b3 Bd4 (36... Kg7 {is too late:} 37. Kf5 Bf2 (37... Kh6 38.
Ke6 Bc5 39. f5 Kg7 40. Ke7 {, winning}) 38. g4 Kh6 39. Kf6 Bg3 40. g5+ Kh5 41.
g6 Bxf4 42. g7 Be5+ 43. Kf7 Bxg7 44. Kxg7 Kg5 45. Kf7 Kf5 46. g4+ Ke5 47. g5)
37. Kf5 Be3 38. g4 Bd2 39. g5 Kg7 40. Kg4 Kf7 41. f5 Kg7 42. Kh5 Bc1 43. g4 Bd2
44. g6 Kf6 45. g5+ Kg7 (45... Bxg5 46. g7 Kxg7 47. Kxg5 Kf7 48. f6 {, also
winning.}) 46. f6+ Kg8 47. Kh6 1-0