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Главная страница Справка Коды ЭШД E00 - E99 E30

Коды ЭШД

E27 E28 E29

E30

E31 E32 E33

E30

Код энциклопедии шахматных дебютов (ЭШД)

Описание

RU: Защита Нимцовича. Ленинградский вариант
EN: Nimzo-Indian: Leningrad Variation

Ходы

1. d4 Кf6 2. c4 e6 3. Кc3 Сb4 4. Сg5 h6 5. Сh4 c5 6. d5 b5

Дебюты

Защита Нимцовича

[Event "Ciocaltea Memorial"]
[Site "Bucharest"]
[Date "1994.??.??"]
[Round "2"]
[White "Ionescu, Constantin"]
[Black "Brodsky, Michail"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2440"]
[BlackElo "2500"]
[Annotator "Ambroz,J"]
[PlyCount "40"]
[EventDate "1994.02.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ROU"]
[EventCategory "9"]
[SourceTitle "CBM 040"]
[Source "ChessBase"]
[SourceDate "1994.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 (4... h6 5. Bh4 c5 6. d5 Bxc3+ 7. bxc3
d6 8. dxe6 Bxe6 9. e3 Nc6 10. Nf3 g5 11. Bg3 Ne4 12. Qc2 Nxg3 13. hxg3 Qf6 14.
Bd3 O-O-O 15. Rb1 Kc7 16. Nd2 $1 b6 17. Be4 d5 18. cxd5 Bxd5 19. O-O Bxe4 20.
Nxe4 Qe6 21. Rfd1 f5 22. Nd2 Rd7 23. Nf3 Rhd8 24. Rxd7+ Rxd7 25. Re1 $14 {
Gaertner,G-Illi,H/Mendrisio op (9)/1989/1-0 (44)}) 5. d5 exd5 6. cxd5 d6 7. e3
Nbd7 8. Bd3 Qa5 9. Nge2 Nxd5 (9... Bxc3+ 10. bxc3 O-O 11. O-O Re8 12. a4 a6 13.
Bxf6 Nxf6 14. c4 Bd7 15. Qc2 Re7 16. Rfb1 Qc7 17. Ng3 Rae8 18. Bf5 $5 Re5 $1
$10 {Braun-Hellmayer, Wien op 1985}) 10. O-O c4 (10... Bxc3 11. bxc3 c4 (11...
Nxc3 12. Nxc3 Qxc3 13. Bb5 $1 Qe5 (13... O-O 14. Be7 $44) (13... a6 $2 14. Qxd6
) 14. Bf4 Qe6 15. Bxd6 $40) 12. Bc2 $142 (12. Bxc4 $2 N5b6) (12. Bf5 $5 f6 (
12... N7b6 13. Nd4 (13. Bxc8 $6 Rxc8 14. Qd4 O-O 15. e4 Nxc3 16. Nxc3 Qxg5 17.
Qxd6 Qa5 18. Qg3 Rfd8 19. Nd1 Rd4 20. f3 Rd2 21. Ne3 Qc5 22. Rfe1 Rd3 23. Qf2
c3 24. Rad1 Rcd8 25. Nd5 {Reuben,S-Arkell,S/Kuala Lumpur op (09)/1992/0-1 (29)}
) 13... Nxc3 14. Qg4 h5 15. Qf3 Qd5 16. Qxd5 Nbxd5 $13 {Ionescu,Co-Eingorn,V/
Sochi 42/(730)/1986/Line (16)}) 13. Nd4 $1 Ne7 14. Bxd7+ Bxd7 15. Bf4 O-O 16.
Bxd6 Rfe8 17. Rb1 b6 18. Bxe7 Rxe7 19. Nb5 Rc8 20. Nd6 Rc7 21. Rb4 Be6 22. Qf3
Qd5 23. Qxd5 Bxd5 24. Rd1 Be6 25. Rd4 {Timman,J-Karpov,An/Amsterdam 21/509/
1976/0.5 (45)}) (12. Be4 $6 N5f6 13. Bxf6 Nxf6 14. Bf3 Qc5 15. Rb1 Rb8 16. Nd4
d5 $15 17. Rb5 Qd6 18. Qb1 O-O 19. Rd1 Qc7 20. Qb4 b6 21. Qb1 Rd8 22. g3 Bg4 $1
23. Bxg4 Nxg4 24. Qf5 Nf6 25. Ne2 {Meurrens,P-Hansen,LB/Lyngby open (3)/1989/
0-1 (31)}) 12... O-O 13. Bh4 $5 $44 (13. Qd4 $44) (13. Bh4 Ne5 (13... Nxc3 14.
Nxc3 Qxc3 15. Rc1 Qa5 16. Qxd6 Qe5 17. Bg3 $5 $44 {^^} Qxd6 18. Bxd6 Re8 19.
Rfd1 b5 20. a4 a6 21. Rb1 Nf6 22. axb5 axb5 23. Rxb5 Be6 24. Be5 Bd7 25. Rc5 {
Rajkovic,D-Stoica,V/Sofia 42/730/1986/0.5 (52)}) 14. Qd2 Ng6 15. Bg3 Rd8 16. e4
Nf6 17. f4 Bd7 18. f5 Ne5 19. Bh4 d5 $5 20. exd5 Re8 21. Nf4 Neg4 22. Rae1 Qb6+
23. Kh1 Ne3 24. Rg1 Nxf5 25. Bf2 $40 {Rechlis,G-Levitt,J/Tel-Aviv (5)/1989/1-0
(42)})) 11. Bxc4 Bxc3 12. Qxd5 (12. bxc3 $2 N5b6) (12. Bxd5 Bxb2 13. Rb1 (13.
Qb3 Bxa1 14. Bxf7+ Kf8 15. Qe6 Nf6 $19) 13... Bf6 (13... Nb6 14. Rxb2 Qxd5 15.
Qxd5 Nxd5 16. Rd1 $14) 14. Bxf6 (14. Bf4 $5 $44) 14... Nxf6 15. Bxb7 Bxb7 16.
Rxb7 O-O 17. Qxd6 Qxa2 $10) 12... Qxd5 13. Bxd5 Bxb2 14. Rab1 Nb6 $1 (14... Bf6
15. Bxf6 Nxf6 16. Bxb7 Bxb7 17. Rxb7 O-O 18. Rc1 $1 $14) 15. Bxb7 Bxb7 16. Rxb2
O-O {^-} 17. Nd4 (17. Be7 Rfc8 18. Bxd6 Bxg2 $1 19. Kxg2 Nc4 $10) 17... Ba6 18.
Rd1 Rfe8 19. h3 d5 20. Bf4 g6 1/2-1/2

[Event "BIH-chT"]
[Site "Neum"]
[Date "2000.08.25"]
[Round "1"]
[White "Glavas, Dragan"]
[Black "Atalik, Suat"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2304"]
[BlackElo "2549"]
[Annotator "Atalik,S"]
[PlyCount "72"]
[EventDate "2000.08.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "BIH"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. e3 Bxc3+ 7. bxc3 Qe7 8. Nf3
(8. Bd3 Nbd7 (8... exd5 9. cxd5 Qe5 10. Bxf6 Qxf6 11. Ne2 $14)) 8... Nbd7 9.
Be2 h6 (9... Nb6 $2 10. dxe6 Bxe6 11. Nd2 $16) 10. Bh4 Nb6 11. a4 $2 (11. dxe6
Bxe6 12. Nd2 O-O 13. O-O d5 14. cxd5 Bxd5 $11) 11... exd5 12. O-O Nxc4 13. Bxf6
gxf6 $1 14. Qxd5 Be6 15. Qe4 d5 16. Qf4 O-O-O 17. Bxc4 dxc4 $17 18. Nh4 Bd5 $2
(18... Rd3 $1 19. Rab1 (19. Nf5 Qc7) (19. Rfb1 Rhd8 20. a5 Qd6 $17) 19... Rhd8
20. a5 Rxc3 21. Rb5 Rd5 $17) 19. Rfd1 Qe5 20. Nf5 Kc7 21. f3 h5 (21... Be6 22.
Ng3 (22. Qxe5+ fxe5 23. Rxd8 Rxd8) 22... Qxf4 23. exf4 f5 $19) 22. Kf2 (22. h4
Be6 23. Rxd8 (23. Ng3 Rd3 24. Ne4 Qxf4 25. exf4 Kc6 $19) 23... Rxd8 24. Ng3 Rd3
25. Ne4 Qxf4 26. exf4 f5 27. Ng3 Rxc3 28. Nxh5 Rd3 29. Ng7 c3 30. Nxe6+ fxe6
31. Rc1 Kd6 32. Kf1 Rd4 $19) 22... h4 (22... Be6 23. Ng3 Rd3 24. Ne4 Qxf4 25.
exf4 Kc6 $19) 23. Qxe5+ fxe5 24. e4 Be6 25. Rxd8 Kxd8 26. Rd1+ Kc7 27. Ne3 (27.
Ng7 b6) 27... b6 28. Ng4 $1 Bxg4 (28... Rh5 29. g3 $132) 29. fxg4 Rd8 $4 (29...
a6 30. Ke3 (30. g3 h3 31. Ke3 Rd8 32. Rf1 Rd3+ 33. Ke2 Rxc3 34. Rxf7+ Kd6 35.
Rf6+ Ke7 36. Rxb6 Rc2+ 37. Ke3 Rxh2 38. Rxa6 Rh1 $19) (30. Rd5 Kc6 31. Rxe5 b5
32. axb5+ (32. Rf5 bxa4) 32... axb5 33. Rf5 b4 34. Ke2 h3 35. g3 Ra8 $19) 30...
h3 31. g3 Rd8 $19) 30. Rxd8 Kxd8 31. h3 a5 (31... Kd7 32. g3 hxg3+ 33. Kxg3 a5
34. Kf2 b5 35. Ke2 b4 36. h4 $11) (31... a6 32. g3 b5 (32... hxg3+ 33. Kxg3 b5
34. axb5 axb5 $11 (34... a5 $2 35. h4 a4 36. h5 a3 37. h6 a2 38. h7 a1=Q 39.
h8=Q+ $18) 35. Kf2) 33. axb5 hxg3+ 34. Kxg3 axb5 35. Kf2 $11) 32. Ke2 Kd7 33.
Kd1 Kd6 34. Ke2 Ke7 35. Kd2 Ke6 36. Ke2 Kd6 1/2-1/2

[Event "GER-ch 77th"]
[Site "Osterburg"]
[Date "2006.02.11"]
[Round "9"]
[White "Muranyi, Karl Jasmin"]
[Black "Naumann, Alexander"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2359"]
[BlackElo "2532"]
[Annotator "Babula,V"]
[PlyCount "71"]
[EventDate "2006.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 112"]
[Source "ChessBase"]
[SourceDate "2006.06.07"]
[SourceVersion "1"]
[SourceVersionDate "2006.06.07"]
[SourceQuality "1"]
[WhiteTeam "Illingen"]
[WhiteTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 {The Leningrad variation isn't considered
to be a dangerous weapon against the Nimco-Indian.} h6 (4... c5 5. d5 {is most
often only a transposition, the moves h7-h6, Bg5-h4 can be inserting later.
But there is a line where Black does better without these moves:} exd5 6. cxd5
d6 7. e3 Nbd7 8. Bd3 Qa5 9. Nge2 Nxd5 10. O-O Bxc3 11. bxc3 {Now Black plays}
c4 12. Bc2 O-O $13 {and he has some extra possibilities because of the
insecure position of White's Bg5.}) 5. Bxf6 $6 {This continuation is
absolutely harmless for Black.} ({Better is the main move} 5. Bh4 $142 {
Compared with the line above, not so good is now} c5 6. d5 exd5 7. cxd5 d6 8.
e3 Nbd7 9. Bd3 Qa5 10. Nge2 Nxd5 11. O-O Bxc3 12. bxc3 $36 {, for example} Nxc3
13. Nxc3 Qxc3 14. Be2) 5... Qxf6 ({Possible is also} 5... Bxc3+ {at first to
compromise White's pawn structure} 6. bxc3 Qxf6) 6. Qd2 {White prevents a
creation of the doubled pawns.} ({The more frequent move with the same idea is
} 6. Rc1 {, but nevertheless White has then no advantage:} c5 7. dxc5 (7. d5
O-O 8. Nf3 exd5 9. cxd5 d6 $11 {0-1 Damljanovic,B (2400)-Spassov,L (2475)/
Vrnjacka Banja 1984/MCD (35)}) 7... Na6 $5 $11 {1/2 Vladimirov,E (2460)
-Rashkovsky,N (2540)/Volgodonsk 1981/MCD (21)}) ({Other possible moves
ignoring Black's "threat" Bxc3 are:} 6. Nf3 $11) ({and} 6. e3 $11) 6... c5 ({
Playable is} 6... b6 7. e4 Bb7 $11) 7. e3 Nc6 (7... cxd4 $5) 8. Nf3 O-O ({
Interesting option is} 8... d5 $5) 9. a3 Bxc3 10. Qxc3 d6 11. Be2 e5 (11... b6
12. O-O Bb7 $11 {1/2 Carlsen,M (2385)-Hansen,T (2305)/Fredrikstad 2003/CBM 095
ext (36)}) 12. d5 {A novelty but it doesn't change the evaluation of the
position.} (12. dxc5 dxc5 13. O-O $11 {0-1 Sandoval Huertas,G-Wilkins,K/Dos
Hermanas 2003/EXT 2004 (46)}) 12... Ne7 $11 {The chances are equal. Black has
already exchanged his dark squared bishop which would be bad in this type of
the pawn structure.} 13. O-O g5 $6 {A premature advance.} ({Better is} 13...
Bg4 $142 $11) ({or} 13... Bf5 $142 $11) 14. b4 b6 15. a4 $6 (15. Nd2 $142 $5
$14) 15... Ng6 (15... Bg4 $5) 16. a5 (16. Nd2 $5) 16... Bg4 17. axb6 axb6 18.
h3 cxb4 19. Qb2 (19. Qxb4 $4 Rxa1 20. Rxa1 e4 $19 {[%csl Ra1][%cal Yf6a1]})
19... Bxf3 20. Bxf3 Ra5 21. Rab1 Rc5 22. Qxb4 Rb8 23. Qa4 $14 {Black's
weakness b6 is more vulnerable than White's c4 one as White's bishop can
easily cover it.} Qe7 24. Be4 Nh4 25. Qc2 Kg7 26. Rb4 (26. g3 $5) 26... Qd7 27.
g3 $6 (27. Rfb1 $142 $14) 27... f5 $1 $11 28. gxh4 fxe4 29. Qxe4 Qxh3 30. hxg5
hxg5 31. Qg2 Qf5 32. f4 exf4 33. Rxf4 Qe5 34. Re4 Qa1+ 35. Qf1 Qxf1+ 36. Kxf1 (
36. Kxf1 Rc7 $11 37. Re6 $140 Rf7+ 38. Ke2 Rf6) 1/2-1/2

[Event "GER-ch 74th"]
[Site "Saarbruecken"]
[Date "2002.11.27"]
[Round "6"]
[White "Breutigam, Martin"]
[Black "Handke, Florian"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "2398"]
[BlackElo "2504"]
[Annotator "Bangiev,A"]
[PlyCount "100"]
[EventDate "2002.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 093"]
[Source "ChessBase"]
[SourceDate "2003.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2003.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. dxc5 Qc7 6. Bxf6 gxf6 7. Rc1 Bxc5 8.
e3 f5 (8... Nc6 $142 9. a3 a6) 9. Nh3 b6 10. Be2 $6 {Ich glaube, WeiЯ verliert
damit nur Zeit. Er steht momentan aktiver und sollte mцglichst rasch handeln,
um die zahlreichen Schwдchen des Schwarzen auszunutzen.} (10. Nf4 $5 Bb7 11. a3
a6 $1 (11... Rg8 12. b4 Be7 13. Nb5 Qc6 14. Qh5 Rh8 15. Be2 $36) (11... a5 $6
12. Nb5) (11... Nc6 12. b4 Be7 13. Ncd5 exd5 14. cxd5 Bg5 15. Nh3 $14) 12. Qh5
Nc6 13. b4 Bd6 14. Ncd5 $5 exd5 (14... Qd8 15. Qh6 Be5 $13) 15. Nxd5 Qd8 16.
Qxf5 $44) 10... Bb7 11. Bf3 (11. Nf4 Rg8 12. Bf3 Nc6) 11... Nc6 12. Nf4 Rg8
$132 13. Nd3 {Die Ьberfьhrung des Springers nach d3, die 3 Zьge dauerte, hat
aber nicht viel eingebracht.} (13. a3 a6 14. Na4 $5 {/\b4} Bd6 15. Nxb6) 13...
a6 14. a3 Bd6 15. Nd5 $5 {Der Schlьsselzug der weiЯen Strategie in dieser
Stellung. Die anderen weiЯen Figuren spielen aber im Moment nicht mit, also
eine harmlose Einzelaktion??} Qd8 {Nun ist der Springer gefragt.} (15... exd5
16. cxd5 $14) 16. Nxb6 $5 {Die Fortsetzung folgt! Der Partiezug sieht gut aus
und zwingt beide Parteien sich einen tiefen Einblick in die Stellung zu
verschaffen, bzw. viele Varianten duchzuberechnen.} Qxb6 17. c5 Qa5+ 18. b4
Qxa3 19. cxd6 Nxb4 $1 {Hat WeiЯ diesen Zug ьbersehen?} (19... e5 $5) 20. O-O $8
Nxd3 21. Bxb7 Rb8 22. Ra1 Qxd6 23. Rxa6 Qb4 24. Qxd3 (24. Bf3 Ne5 $17) (24. Ba8
Ne5 $15) 24... Qxb7 $15 25. g3 h5 26. h4 {Schwarz hat einen Mehrbauern, muss
aber noch seine Schwerfiguren verbinden. Im Gegensatz dazu spielen die weiЯen
Schwerfiguren sehr optimal zusammen.} Qc7 (26... Rg4 27. Rd1 Rb4 28. Rd6 Rb1
29. Qe2 $132) 27. Rd1 d5 28. Qa3 Rg4 (28... Rxg3+ {Dies sollte hцchstens Remis
einbringen.} 29. fxg3 Qxg3+ 30. Kf1 Qf3+ 31. Ke1 Qh1+ 32. Kd2 Qg2+ 33. Kc3 Qe2
$11) 29. Ra7 Qd8 30. Qc3 {Nun gerдt Schwarz in Schwierigkeiten.} d4 $6 (30...
Rg8 $11) 31. exd4 (31. Qc5 $5) 31... Kf8 $6 (31... Rc8 32. Qb4 Rc7 $14) 32. d5
$1 Kg8 (32... exd5 33. Qh8+ Rg8 34. Qe5 $16) 33. Qf3 (33. Rxf7 $1 Kxf7 34.
dxe6+ Kxe6 35. Qc6+ Ke7 36. Rxd8 Rxd8 37. Qc7+ $16) 33... Qb6 34. Rd7 f4 $1 35.
Kg2 $2 (35. Kh2 $142) 35... Qb2 $1 {/\Rg3} 36. Kh3 (36. dxe6 Rxg3+) 36... Qf6 (
36... Rb3 37. Rd3 Rxd3 38. Qxd3 Qxf2 39. Rd8+ Kg7 40. Qc3+ Kg6 {Dies wurde
ziemlich komplieziert, z.B.} 41. Rg8+ Kf5 42. Qd3+ Ke5 43. Qc3+ Kxd5 44. Rd8+
Ke4 45. Qd3+ Ke5 46. Qc3+ $11) (36... e5 $5) 37. dxe6 (37. d6 $5) 37... Qxe6
38. Rd8+ Kh7 39. Qd3+ $2 {Ein Zeitnotfehler} Rg6+ $19 40. Kg2 Rxd8 41. Qxd8
Qe4+ 42. Kg1 fxg3 43. Qd3 gxf2+ 44. Kxf2 Qxh4+ 45. Kf1 Qh1+ 46. Kf2 Qg2+ 47.
Ke1 h4 48. Qf5 Qg3+ 49. Kf1 Kg7 50. Rd3 Qg1+ 0-1

[Event "GER-ch 74th"]
[Site "Saarbruecken"]
[Date "2002.11.25"]
[Round "4"]
[White "Breutigam, Martin"]
[Black "Bischoff, Klaus"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "2398"]
[BlackElo "2554"]
[Annotator "Bangiev,A"]
[PlyCount "47"]
[EventDate "2002.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 093"]
[Source "ChessBase"]
[SourceDate "2003.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2003.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. dxc5 {Diese Variante kann
man zurecht die Breutigen-Variante nennen. SF Breutigam wendet dieses Abspiel
der Leningrader Variante mit mдЯigem Erfolg an. Siehe Kommentar zum 6. Zug von
Schwarz.} (6. d5 {Dieser VorstoЯ stellt die Hauptvariante dar.}) 6... Bxc5 {
[%mdl 8] Eine Neuerung im 6. Zug! Der Partiezug ist allerdings kein
Unbekannter. So spielt Schwarz z.B. in der 4.Qc2-Variante (4...c5 5.dxc5 Bxc5).
} (6... Na6 7. Qd4 Bxc5 8. Qd2 Ne4 9. Nxe4 Qxh4 10. Nxc5 Nxc5 11. Nf3 Qf6 12.
g3 b6 13. Bg2 Bb7 14. O-O d5 15. cxd5 Bxd5 $11 {1/2-1/2 Breutigam,M-Grathwohl,
R/Germany 1991/(43)}) (6... Nc6 7. Nf3 {Ein neuer Versuch. Nun muss WeiЯ mit
dem Triplebauern auf der c-Linie rechnen. Die schwarzfeldrigen
Stellungsschwдchen im eigenen Lager muss Schwarz allerdings in Kauf nehmen.} (
7. Rc1 {ein offensichtlicher Zug, mit dem Ziel einen Triplebauern auf der
c-Linie zu verhindern. Der Turm c1 stellt aber keine Verstдrkung der weiЯen
Stellung dar.} g5 8. Bg3 Ne4 9. e3 Bxc3+ (9... Nxc3 10. bxc3 Bxc5 11. h4 Ba3
12. Rb1 Qf6 13. Rb3 Be7 14. Nf3 b6 $11 {1/2-1/2 Breutigam,M-Goldberg,A/Germany
1995/(35)}) (9... Qa5 10. Bd3 (10. Qc2 Bxc3+ 11. bxc3 Nxg3 12. hxg3 Qxc5 13.
Rb1 b6 14. Rb5 Qf8 15. Qa4 Qg7 16. Ne2 Na5 17. Nd4 O-O $13 {0-1 Breutigam,
M-Gabriel,C/Germany 1996/(54)}) 10... Bxc3+ 11. bxc3 Nxg3 12. hxg3 Qxc5 13. Rb1
b6 14. Rb5 Qe7 15. Qa4 Bb7 16. Nf3 g4 17. Nd2 Na5 18. Rbh5 Bxg2 19. Rxh6 $13 {
0-1 Breutigam,M-Wells,P/Germany 1996/(57)}) 10. bxc3 Nxg3 11. hxg3 Qa5 12. Nf3
Qxc5 13. Rb1 Qe7 14. Qd2 b6 15. Nd4 Ba6 16. Nb5 Bxb5 17. cxb5 Na5 18. Qd4 O-O-O
$11 {1/2-1/2 Breutigam,M-Petrosian,A/Dortmund 1993/(68)}) 7... Bxc3+ 8. bxc3
Qa5 9. Bxf6 gxf6 10. Qd3 (10. g3 Qxc5 11. Nd2 f5 12. e4 b6 13. Bg2 f4 14. O-O
fxg3 15. hxg3 Ne5 $36 {0-1 Breutigam,M-Wahls,M/Altenkirchen 2001/(51)}) 10...
Qxc5 11. g3 b6 12. Rd1 O-O 13. Bg2 Ba6 14. Nd2 f5 15. g4 $36 {1/2-1/2
Breutigam,M-Tischbierek,R/Altenkirchen 2001/(45)}) (6... Bxc3+ 7. bxc3 Qa5 8.
Bxf6 gxf6 9. Qd4 e5 10. Qe3 Na6 11. g3 Qxc5 $11 {1-0 Breutigam,M-Schulz,R/
Germany 1993/(36)}) (6... Qa5 7. Bxf6 gxf6 8. Qd4 Ke7 9. Qd6+ Ke8 10. Qd4 Ke7
11. Qd6+ Ke8 {1/2-1/2 Breutigam,M-Hoffmann,M/Germany 1997/(11)}) 7. e3 Be7 8.
Nf3 d6 9. Be2 a6 10. O-O Qc7 11. Rc1 O-O 12. Nd4 Nbd7 13. f4 Re8 14. Bd3 b6 {
Schwarz baut langsam und ohne Mьhe eine bekannte Stellung (Igel-Aufbau) aus
der Sizilianischen Verteidigung auf.} 15. g4 $5 {[%mdl 128] WeiЯ startet
unterdessen einen Kцnigsangriff. /\g5} Nf8 (15... Nc5 16. Bb1 (16. g5 Nxd3 17.
Qxd3 Nd7) 16... Bb7 17. b4 (17. g5 Nfe4) (17. Bxf6 Bxf6 18. b4 Nd7 19. Qd3 g6)
17... Ncd7 18. g5 Nh7 19. Qh5 Nhf8 20. gxh6 g6 21. Qg4 $16) (15... Bb7 16. g5
$16) 16. g5 N6h7 17. Qh5 {Der weiЯe Angriff nimmt bedrohliche Formen an.} hxg5
18. fxg5 g6 19. Qh6 Bb7 20. Rf6 $1 {Ein starker Zug.} (20. Rxf7 $5 Kxf7 21.
Bxg6+ Kg8 (21... Nxg6 22. Qxh7+ Kf8 23. Nxe6#) 22. Bxh7+ Nxh7 23. Nxe6 Bxg5 24.
Qg6+ Kh8 25. Nxc7 Rg8 $13) (20. Ne4 $1 Bxe4 21. Bxe4 Qc5 (21... Rac8 22. Rxf7
Kxf7 23. Bxg6+ Kg8 24. Bxh7+ Nxh7 25. Nxe6 Bxg5 26. Qg6+ Kh8 27. Nxc7 Rg8 28.
Qh5 Bxh4+ 29. Kh1 $18) 22. Rxf7 (22. Bxa8 Rxa8 $13) 22... Kxf7 23. Rf1+ Kg8 24.
Nxe6 Qe5 (24... Qxe3+ 25. Bf2 $18) 25. Bxg6 $1 $18) 20... Qc5 (20... d5 21.
Nxe6 $3 Nxe6 22. Rxg6+ $18) (20... Bd8 21. Rcf1 $18) 21. Nd5 exd5 22. Rxf7 Kxf7
23. Bxg6+ Kg8 24. Nf5 1-0

[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1977.01.24"]
[Round "9"]
[White "Timman, Jan H"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "2590"]
[BlackElo "2430"]
[Annotator "Bulletin"]
[PlyCount "61"]
[EventDate "1977.01.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[EventCategory "11"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5 7. e3 Bb7 (7... O-O
8. Qf3) 8. dxe6 fxe6 9. cxb5 O-O 10. Nf3 Qa5 11. Bxf6 Rxf6 12. Qd2 $6 (12. Qc1
$1 a6 13. bxa6 Nxa6 14. Be2) 12... a6 13. bxa6 Bxf3 14. gxf3 Nc6 $1 15. Be2 d5
16. a3 d4 17. Qc1 (17. O-O $5 dxc3 18. axb4 Qxa1 19. Qxc3 Qa4 20. b5) 17...
Bxc3+ 18. bxc3 Rd8 19. Qc2 c4 $1 20. exd4 Nxd4 21. Qb2 Nxe2 22. Kxe2 Qd5 23.
Rhd1 Qxf3+ 24. Ke1 Qh1+ 25. Ke2 Qe4+ 26. Kf1 Rxd1+ $4 (26... Rdf8 27. Qb6 Qc2
28. Kg1 Rxf2 29. Qxe6+ Kh8 30. Qg4 Rxh2) 27. Rxd1 Qh1+ 28. Ke2 Rxf2+ $2 (28...
Qe4+) 29. Kxf2 Qxh2+ 30. Kf1 Qxb2 31. a7 $1 1-0

[Event "Candidates Tournament"]
[Site "Bled/Zagreb/Belgrade"]
[Date "1959.10.11"]
[Round "20"]
[White "Petrosian, Tigran V"]
[Black "Benko, Pal C"]
[Result "1-0"]
[ECO "E30"]
[Annotator "Bulletin"]
[PlyCount "82"]
[EventDate "1959.09.07"]
[EventType "tourn"]
[EventRounds "28"]
[EventCountry "CRO"]
[SourceTitle "Candidates"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 Bxc3+ 6. bxc3 e5 7. Rc1 d6 8. e3
Nbd7 9. f3 h6 10. Bh4 g5 11. Bg3 Qe7 12. e4 Nf8 13. Bf2 Ng6 14. Ne2 Bd7 15. Rb1
Rb8 (15... O-O-O) 16. Be3 Kd8 17. Qc1 Kc7 18. Qa3 Ra8 19. Kd2 g4 20. Ng3 Nh4
21. Qb3 Rab8 22. Qd1 gxf3 23. gxf3 Nh7 24. Kc1 Ng5 25. Be2 Rbf8 $2 (25... f5
$142) 26. Bxc5 $1 b6 (26... dxc5 27. d6+ Qxd6 28. Rxb7+ Kc6 29. Qxd6+ Kxd6 30.
Rd1+) 27. Be3 Ng2 $2 (27... f5) 28. Bxb6+ $1 axb6 29. Qg1 Rb8 30. Qxg2 Nh3 31.
Bf1 Nf4 32. Qd2 $18 Qg5 33. Kb2 h5 34. Rg1 Qf6 35. Ka1 h4 36. Ne2 Ng6 37. Qe3
Rh5 38. Rg2 Qh8 39. Nc1 Ne7 40. Rgb2 Nc8 41. Nd3 Qh6 (41... Qh6 42. Qxh6 Rxh6
43. Nb4 $18) 1-0

[Event "Hilversum KRO m"]
[Site "Hilversum"]
[Date "1986.??.??"]
[Round "6"]
[White "Timman, Jan H"]
[Black "Jussupow, Artur"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2620"]
[BlackElo "2660"]
[Annotator "Chekhov,V"]
[PlyCount "85"]
[EventDate "1986.12.??"]
[EventType "match"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5 7. e3 (7. cxb5 $5 g5
8. Bg3 Nxd5 9. Be5 O-O 10. e4 d6 11. exd5 dxe5 12. d6 Bb7 13. h4 Nd7 14. Qh5
Kg7 15. hxg5 Qxg5 16. Nf3 Qxh5 17. Rxh5 $14 {Lempert,I-Magerramov,E/Berlin/
1993/1|0/39/}) (7. e4 $5 g5 8. Bg3 Nxe4 9. Be5 O-O 10. Bd3 $146) 7... O-O $6 (
7... Bb7 $5 8. dxe6 fxe6 9. cxb5 O-O 10. Nf3 Qe8 (10... d5 $5 $146) 11. Bxf6
Rxf6 12. a3 Bxc3+ 13. bxc3 d5 14. Be2 Nd7 15. O-O e5 16. e4 d4 17. Nd2 Kh8 18.
cxd4 cxd4 19. Rc1 $16 {Yusupov,A-Christiansen,L/New York/1995/0|1/44/}) 8. Qf3
Bb7 9. Bxf6 Qxf6 10. Qxf6 gxf6 11. O-O-O Bxc3 12. bxc3 Rc8 $6 (12... bxc4 $5
13. Bxc4 Ba6 14. Bxa6 Nxa6 15. Ne2 $14) 13. Ne2 (13. dxe6 fxe6 14. cxb5 a6 15.
bxa6 Bxa6 $146) 13... bxc4 14. Nf4 Kf8 (14... Ba6 $6 15. Be2 Kf8 16. Bf3) 15.
e4 (15. Bxc4 Ba6 16. Bxa6 Nxa6 17. dxe6 dxe6 18. Rd6 Nc7 19. c4 $14) 15... Na6
16. Bxc4 Nc7 17. Rhe1 (17. Nh5 $5) 17... Ne8 18. Re3 (18. dxe6 dxe6 19. Rd3 Rd8
20. Rh3 Nd6 21. Bd3 e5 22. Nh5 Ke7 $132) 18... Nd6 (18... Ke7 $5) 19. Bd3 e5 (
19... Ke7 $5) 20. Nh5 Ke7 21. Rf3 c4 22. Bc2 Rg8 (22... Ne8 23. Re1 Rab8 24.
Ree3 $16) 23. Rxf6 Rxg2 24. f4 Rxh2 25. Rxh6 (25. fxe5 Rxh5 26. Rxd6 Rh8 27.
Ba4 Bc8 $17) 25... f6 (25... exf4 $6 26. e5 Ne8 27. d6+ Kd8 28. Rg1 Bf3 29. Rh8
Rxh5 30. Rxe8+ $18) 26. Rh7+ (26. Rg1 Rf8 27. Rg7+ Rf7 28. fxe5 fxe5 (28...
Rxg7 29. exd6+ Kxd6 30. Nxg7 Rxh6 31. Nf5+ $18) 29. Rgg6 Rff2) 26... Kd8 (26...
Nf7 $2 27. fxe5 fxe5 28. d6+ Kf8 (28... Ke6 29. Ng7+ $18) 29. Rf1 Rxc2+ 30. Kd1
$18) 27. f5 (27. Nxf6 Rxh7 28. Nxh7 exf4 29. Rf1 $16) 27... Kc7 28. Nxf6 Rxh7
29. Nxh7 Rg8 30. Nf6 Rg3 31. Kb2 Rg2 (31... Nb5 32. Rh1 Nxc3 33. Rh7 Bc8 34.
Ne8+ Kd8 35. Nd6 $18) 32. Rh1 Bc8 33. Rh4 (33. Rh8 $5) 33... Nb7 34. Ne8+ Kd8
35. Rh8 Ke7 36. Kc1 Rg1+ 37. Kb2 (37. Bd1 d6 38. Kd2 Rg2+ 39. Ke3 Rg3+ 40. Kf2
Rxc3 41. f6+ $18) 37... Rg2 38. a4 $2 (38. Kc1 Rg1+ 39. Bd1 $18) 38... d6 39.
Nc7 (39. Kc1 Bd7 40. Nc7 Nc5) 39... Nc5 40. Rh7+ Kf8 41. Rh8+ (41. Ne6+ Bxe6
42. dxe6 Nd3+ 43. Kb1 Rg1+ 44. Ka2 Rg2 45. f6 Rxc2+ 46. Kb1 Rc1+ 47. Ka2 Rc2+
48. Ka3 Rxc3+ 49. Ka2 Rc2+ $10) 41... Ke7 42. Rh7+ (42. Rxc8 Kd7 43. Rh8 Kxc7
$146) 42... Kf8 43. Rh8+ 1/2-1/2

[Event "Khanty-Mansiysk FIDE GP (Women)"]
[Site "Khanty-Mansiysk"]
[Date "2014.04.10"]
[Round "2"]
[White "Batchimeg, Tuvshintugs"]
[Black "Hou, Yifan"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "2340"]
[BlackElo "2618"]
[Annotator "ChessBase Website"]
[PlyCount "44"]
[EventDate "2014.04.09"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "10"]
[SourceTitle "CBM 160"]
[Source "ChessBase"]
[SourceDate "2014.05.15"]
[SourceVersion "1"]
[SourceVersionDate "2014.05.15"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]
[WhiteClock "1:30:00"]
[BlackClock "1:30:00"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:
00:00]} 3. Nc3 {[%emt 0:00:02]} Bb4 {[%emt 0:00:00]} 4. Bg5 {[%emt 0:00:14]} c5
{[%emt 0:02:20]} 5. d5 {[%emt 0:00:11]} Bxc3+ {[%emt 0:00:47]} 6. bxc3 {
[%emt 0:00:06]} d6 {[%emt 0:00:03]} 7. e3 {[%emt 0:00:19]} Qe7 {[%emt 0:00:20]}
8. Bd3 {[%emt 0:06:06]} ({Pertinent:} 8. Nf3 Nbd7 9. Be2 Nb6 10. dxe6 Bxe6 11.
Nd2 O-O-O 12. O-O d5 13. Qb3 h6 14. Bxf6 gxf6 15. a4 Rhg8 16. Rfb1 dxc4 17. Qc2
Bd5 18. g3 Bc6 19. a5 Nd7 20. Nxc4 Ne5 21. Qf5+ Qe6 22. Qxe6+ {1/2-1/2 (22)
Babula,V (2572)-Efimenko,Z (2706) Khanty-Mansiysk 2011}) 8... Nbd7 {[%emt 0:00:
09]} 9. Nf3 {[%emt 0:02:02]} h6 {[%emt 0:02:15]} 10. Bh4 {[%emt 0:05:16]} Nb6 {
[%emt 0:04:18]} 11. dxe6 $6 $146 {[%emt 0:14:48] Tuvshintugs' opening was less
than successful and she found herself positionally worse after only a few
moves. Black's superior pawn structure and more active pieces were far more
important than White's bishop. White's best chance would have been to trade
into a double rook endgame down a pawn and with the worse structure, but
instead she blundered a mating attack and lost immediately.} (11. O-O $142 g5 {
Dolmatov,S (2515)-Geller,E (2500) Moscow-A 1987 1-0}) 11... Bxe6 {[%emt 0:01:
05]} 12. Nd2 {[%emt 0:00:13]} O-O-O {[%emt 0:08:02]} 13. a4 {[%emt 0:22:14]} d5
{[%emt 0:04:34]} 14. Qe2 {[%emt 0:05:12]} g5 {[%emt 0:12:57]} 15. Bg3 {[%emt 0:
00:55]} dxc4 {[%emt 0:01:14]} 16. Nxc4 {[%emt 0:03:53]} Nxc4 {[%emt 0:00:22]}
17. Bxc4 {[%emt 0:00:17]} Bxc4 {[%emt 0:18:35]} 18. Qxc4 {[%emt 0:00:09]} Ne4 {
[%emt 0:00:17]} 19. h3 {[%emt 0:24:31]} Nxg3 {[%emt 0:07:54]} 20. Qg4+ {
[%emt 0:00:13]} Qd7 {[%emt 0:00:05]} 21. fxg3 {[%emt 0:08:35]} Rhe8 {[%emt 0:
01:48]} 22. Ke2 {[%emt 0:00:45]} f5 {[%emt 0:00:50]} 0-1

[Event "Olympiad-31"]
[Site "Moscow"]
[Date "1994.12.04"]
[Round "4.1"]
[White "Murshed, Niaz"]
[Black "Kortschnoj, Viktor Lvovich"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2520"]
[BlackElo "2615"]
[Annotator "Dautov,R"]
[PlyCount "53"]
[EventDate "1994.12.01"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "RUS"]
[SourceTitle "CBM 045"]
[Source "ChessBase"]
[SourceDate "1995.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.04.01"]
[SourceQuality "1"]
[WhiteTeam "Bangladesh"]
[BlackTeam "Switzerland"]
[WhiteTeamCountry "BAN"]
[BlackTeamCountry "SUI"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. e3 exd5 7. cxd5 Nbd7 8. Bb5
(8. Bd3 Qa5 9. Nge2 Nxd5 10. O-O Bxc3 11. bxc3 c4 12. Bc2 O-O $10) 8... Qa5 (
8... h6 $5 9. Bh4 Qa5 10. Bxd7+ Nxd7 11. Nge2 Ne5 12. O-O c4 13. a3 Bc5 14. Ne4
Bf5 15. N2c3 Rc8 {Remis/Graf-Levitt/BL 8889}) (8... Bxc3+ $5 9. bxc3 a6 10.
Bxd7+ Bxd7 11. Qf3 h6 12. Bxf6 Qxf6 13. Qxf6 gxf6 $10) 9. Bxd7+ Nxd7 10. Nge2
f6 (10... Ne5 11. O-O Qa6 12. a3 Bxc3 13. Nxc3 O-O 14. Qc2 Bd7 15. f4 Nc4 16.
Rfe1 Rae8 17. e4 f6 18. Bh4 Nb6 19. b3 c4 20. b4 Na4 $10 {
Ioseliani-Chiburdanidze/Tilburg ctW/1994}) 11. Bf4 Ne5 12. O-O O-O 13. Ne4 Qd8
$1 (13... Qc7 $6 14. Bxe5 fxe5 15. Rc1 Qe7 16. a3 Ba5 17. b4 cxb4 18. Qa4 Bb6
19. Qxb4 $16) 14. Bxe5 fxe5 15. N2g3 Ba5 16. f4 (16. Qh5 Qe7 $1 (16... g6 17.
Qh6 Qe7 18. f4 exf4 19. Rxf4 $1 Rxf4 20. Qxf4 Bc7 21. Rf1 Bd7 22. Qf6 Re8 23.
Qc3 $18)) (16. a3 $5 {/\Rb1,b4}) 16... exf4 17. exf4 (17. Rxf4 Rxf4 18. exf4
Qe7 19. Qh5 Bd7 $10) 17... Qe7 18. Qh5 g6 (18... Bd7 $6 19. f5 $36 {/\Ng5-e6})
19. Qg5 Qg7 (19... Qxg5 $2 20. fxg5 Bc7 21. Nf6+ Kg7 22. Rae1 $16) 20. f5 (20.
Nxd6 Bd8 21. Qe5 Bf6 22. Qe2 Bxb2 23. Rab1 Bd4+ 24. Kh1 b6 $13) 20... Qd4+ 21.
Kh1 Bxf5 (21... Bd8 $2 22. f6 Qxb2 23. Rab1 Qd4 24. Rb3 $16 {/\Qh6}) 22. Rxf5 (
22. Nxf5 $6 Qxe4 23. Nxd6 Qe2) 22... Rxf5 23. Nxf5 Qxe4 24. Nxd6 (24. Nh6+ $6
Kg7 25. Rf1 Rf8 26. Rxf8 Kxf8 27. Qf6+ Ke8 28. Qh8+ Kd7 29. Qxh7+ Qe7 (29...
Kc8 $5) 30. Qxe7+ Kxe7 $15) 24... Qd4 25. Nf5 (25. Rf1 Rf8 26. Rxf8+ Kxf8 $10)
25... Bd8 (25... Qxb2 $5 {/\} 26. Rf1 Bd2 $1 27. Nh6+ Kg7 28. Nf5+ Kh8 $17) 26.
Nh6+ (26. Nxd4 Bxg5 27. Ne6 Be7 28. Rd1 Bd6 $10) 26... Kg7 27. Nf5+ (27. Nf5+
Kg8 $10 (27... Kh8 $2 28. Qh6 Qf6 29. Re1 Bb6 30. Re7 $18)) 1/2-1/2

[Event "URS-sf"]
[Site "Daugavpils"]
[Date "1989.??.??"]
[Round "?"]
[White "Yuneev, Alexey"]
[Black "Dautov, Rustem"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "2345"]
[BlackElo "2535"]
[Annotator "Ftacnik,L"]
[PlyCount "88"]
[EventDate "1989.11.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "URS"]
[EventCategory "9"]
[SourceTitle "CBM 016"]
[Source "ChessBase"]
[SourceDate "1990.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.06.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. e3 exd5 7. cxd5 Nbd7 8. Bd3
Qa5 9. Nge2 Nxd5 10. O-O Bxc3 11. bxc3 c4 12. Bf5 (12. Be4 N5f6 13. Bxf6 Nxf6
14. Bf3 Qc5 15. Rb1 Rb8 16. Nd4 d5 $17 {Meurrens,P-Hansen,LB/Lyngby op/1989/
0-1/31/}) (12. Bc2 O-O 13. Bh4 Ne5 {N} (13... Nxc3 14. Nxc3 Qxc3 15. Rc1 Qa5
16. Qxd6 Qe5 17. Bg3 $10 {Rajkovic,D-Stoica,V/Sofija/1986/1/4-1/4/52/}) 14. Qd2
Ng6 15. Bg3 Rd8 16. e4 Nf6 17. f4 $36 {Rechlis,G-Levitt,J/Tel-Aviv/1989/1-0/42/
}) 12... O-O (12... N7b6 13. Nd4 Nxc3 14. Qg4 h5 15. Qf3 Qd5 16. Qxd5 Nbxd5 $17
{Ionescu,Co-Eingorn,V/Sochi/1986/}) 13. Qd2 Nxc3 14. Ng3 Nb6 15. Bf6 Bxf5 (
15... gxf6 16. e4 $13) 16. Bxc3 Qc5 17. Bxg7 $6 (17. Bb4 $5 Qc8) 17... Kxg7 18.
Qxd6 Rfc8 19. Nh5+ Kg8 20. Qf6 Kf8 21. Qh8+ Ke7 22. Qf6+ Kf8 23. Qh8+ Ke7 24.
Qf6+ Kd7 25. Qxf7+ Kc6 26. Rfd1 Rf8 27. Qg7 Nd5 28. Rd4 Rae8 29. Rad1 Rg8 30.
Qf7 Ref8 31. Qxd5+ Qxd5 32. Rxd5 Rxg2+ $1 33. Kxg2 Be4+ 34. Kf1 Bxd5 $19 35.
Rd4 c3 36. Ng3 Kc5 37. Ke1 b5 38. a3 a5 39. Ne2 b4 40. axb4+ axb4 41. e4 Bc4
42. Rd7 Bxe2 43. Kxe2 b3 44. Rb7 c2 {Ftacnik} 0-1

[Event "Madrid"]
[Site "Madrid"]
[Date "1995.??.??"]
[Round "3"]
[White "Jussupow, Artur"]
[Black "Kortschnoj, Viktor Lvovich"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2660"]
[BlackElo "2635"]
[Annotator "Hansen,Cu"]
[PlyCount "118"]
[EventDate "1995.05.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ESP"]
[EventCategory "16"]
[SourceTitle "CBM 047"]
[Source "ChessBase"]
[SourceDate "1995.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.08.01"]
[SourceQuality "1"]

1. d4 {Dautov Bangiev} Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. e3 exd5 7.
cxd5 Nbd7 8. Bd3 Qa5 9. Nge2 Nxd5 (9... Bxc3+ 10. bxc3 O-O 11. O-O Re8 12. a4
a6 13. Bxf6 Nxf6 14. c4 $14 {Braun,W-Hellmayr,A/Wien op/1986/}) 10. O-O Bxc3 (
10... c4 {N} 11. Bxc4 Bxc3 12. Qxd5 Qxd5 13. Bxd5 Bxb2 14. Rab1 Nb6 15. Bxb7
Bxb7 16. Rxb2 O-O 17. Nd4 Ba6 18. Rd1 Rfe8 19. h3 d5 20. Bf4 g6 {1/2-1/2
Ionescu,Co-Brodsky,M/Bucuresti 60/(496) 1994}) (10... Nxc3 11. bxc3 Bxc3 12.
Nxc3 Qxc3 13. Bc2 O-O 14. Rc1 Qe5 15. Bf4 Qf6 16. Bxd6 Re8 17. Qd5 $14 {
Sheldon,R-Thorfinsson,B/III Olimpiada Munida/1995/}) 11. bxc3 (11. Nxc3 Nxc3
12. bxc3 c4 {0-1 Machius,Mischa-Rajkovic,Dusan/Baden Baden open (03) 1987})
11... c4 (11... h6 12. Bh4 Nxc3 13. Nxc3 Qxc3 14. Be2 O-O 15. Be7 Re8 16. Qxd6
c4 17. Rfc1 Qe5 18. Qxe5 Nxe5 {1/2-1/2 Cooper,John-Arkell,Susan/Eastbourne
ch-GB (03) 1991}) 12. Bc2 (12. Bf5 N7b6 (12... f6 13. Nd4 Ne7 14. Bxd7+ Bxd7
15. Bf4 O-O 16. Bxd6 Rfe8 17. Rb1 b6 18. Bxe7 Rxe7 19. Nb5 Rc8 20. Nd6 Rc7 21.
Rb4 $14 {Timman,J-Karpov,An/Amsterdam/1976/}) (12... O-O 13. Qd2 Nxc3 14. Ng3
Nb6 15. Bf6 Bxf5 (15... gxf6 16. e4 $13) 16. Bxc3 Qc5 17. Bxg7 $6 (17. Bb4 $5
Qc8) 17... Kxg7 18. Qxd6 Rfc8 19. Nh5+ Kg8 20. Qf6 Kf8 21. Qh8+ Ke7 22. Qf6+
Kf8 23. Qh8+ Ke7 24. Qf6+ Kd7 $17 {Yuneev,A-Dautov,R/URS-sf/1989/}) 13. Nd4
Nxc3 14. Qg4 h5 15. Qf3 Qd5 16. Qxd5 Nbxd5 {-/+ Ionescu,Co-Eingorn,V/Sochi 42/
(730) 1986}) (12. Be4 N5f6 13. Bxf6 Nxf6 14. Bf3 Qc5 15. Rb1 Rb8 16. Nd4 d5 17.
Rb5 Qd6 18. Qb1 O-O $15 {Meurrens,P-Hansen,LB/LV Open/1989/}) 12... O-O (12...
Nxc3 13. Nxc3 Qxc3 14. Rc1 (14. Qxd6 Qe5 15. Bf4 Qxd6 16. Bxd6 {1/2-1/2
Dannevig,O-Bjerke,R/Oslo-B (9) 1992}) 14... Qa5 15. Bf4 O-O 16. Bxd6 Rd8 17.
Bb1 Ne5 18. Bxh7+ Kxh7 19. Qh5+ Kg8 20. Qxe5 Qxe5 21. Bxe5 {1/2-1/2 Bangiev,
Alexander-Kutsin/Lvov 1988}) 13. Ng3 (13. Bh4 Nxc3 (13... Ne5 14. Qd2 Ng6 15.
Bg3 Rd8 16. e4 Nf6 17. f4 Bd7 18. f5 Ne5 19. Bh4 d5 20. exd5 Re8 21. Nf4 Neg4
22. Rae1 Qb6+ 23. Kh1 Ne3 24. Rg1 Nxf5 25. Bf2 $16 {Rechlis,G-Levitt,J/
Tel-Aviv/1985/}) 14. Nxc3 Qxc3 15. Rc1 Qa5 16. Qxd6 Qe5 17. Bg3 Qxd6 18. Bxd6
Re8 19. Rfd1 b5 20. a4 a6 21. Rb1 Nf6 22. axb5 axb5 23. Rxb5 Be6 $10 {Rajkovic,
D-Stoica,V/Sofia 42/730/1986/}) (13. Nd4 Nxc3 14. Qh5 Nf6 15. Qh4 Nce4 16. Bxe4
Nxe4 17. Be7 Re8 18. Qxe4 Qe5 19. Qc2 Qxe7 20. Qxc4 Be6 $17 {Bareev,E-Dautov,R/
EU-Cup/1990/}) 13... h6 {N} (13... N7f6 14. e4 Nxc3 15. Qd2 Ng4 16. h3 (16. a4
d5 17. h3 Ne5 18. Ra3 Qc5 19. Rxc3 d4 20. Bf6 dxc3 21. Qg5 Nf3+ 22. gxf3 Qxg5
23. Bxg5 $16 {Bangiev,A-Brodsky,M/Simferopol/1988/}) 16... f6 17. Bf4 Ne5 18.
a4 Rd8 19. Ra3 $18 {Nielsen,PH-Danielsen,H/Valby K41/1991/}) (13... Ne5 {Dautov
} 14. e4 Nxc3 15. Qe1 Nd3 16. Bxd3 Qxg5 17. Bxc4 Na4 18. Rd1 Qe7 19. Rd4 Nc5
20. Qd2 Be6 21. Bxe6 Qxe6 22. f3 Rfd8 23. Nf5 Rd7 24. Rd1 $14 {Lempert,
I-Podlesnik,B/Bled op ;TD 94/02 1994}) (13... Nxc3 $6 {Dautov} 14. Qh5 g6 15.
Qh4 (15. Qh6 Qe5 16. Nh5) 15... d5 16. Nf5 $40) 14. Bxh6 N7f6 (14... gxh6 15.
Qg4+ Kh8 16. Qh4 $18 {Dautov} (16. Qh5 $36 {Bangiev} Kg8 17. Qxh6 f5 (17...
N7f6 18. Rad1 Qxc3 19. Rxd5 $16) 18. Qg6+ Kh8 19. Nxf5 (19. Rad1 N7f6 20. Rd4
f4 $13) 19... Rxf5 20. Bxf5 N7f6 21. Bxc8 Rxc8 22. e4 $18)) 15. e4 (15. Bg5 $2
{Dautov} Nxc3 16. Qd2 Qxg5 17. Qxc3 Qc5 $17) (15. Bf4 $5 {Dautov} Nxf4 16. exf4
Qxc3 17. Rc1 Qa3 (17... Qa5 18. Qxd6 $13) 18. Nh5 Nxh5 19. Qxh5 f5 20. Rce1 $44
) 15... gxh6 (15... Nxc3 16. Bd2 $16 (16. Qxd6 Ne8 17. Qf4 gxh6 18. Qxh6 Qb6
$17) (16. Bd2 {Bangiev} b5 $5 (16... Nxd1 $6 17. Bxa5 Nb2 18. Bc3 Nd3 19. Bxd3
cxd3 20. Rfd1 $14 (20. Bxf6 {Dautov} gxf6 21. Rfd1 Be6 22. Rxd3 Rfd8 23. a3 $14
{/\Rad1,/\Rf3})) 17. e5 $5 {/\} dxe5 (17... Bg4 $5 $13) 18. Qf3) (16. Qd2 gxh6
$5 17. Qxh6 $40 Qe5 $8 18. f4 Qd4+ 19. Kh1 Nfxe4 20. Nxe4 Nxe4 21. Rad1 Qf6 $17
) (16. Qf3 Bg4 17. Qf4 Qe5 $17)) 16. exd5 Qxd5 (16... Nxd5 {Bangiev} 17. Qh5
Qxc3 18. Rac1 $16) (16... Qxc3 {Dautov} 17. Re1 Re8 18. Rxe8+ Nxe8 19. Rc1 Qe5
20. Qd2 $44) 17. Ne4 (17. Qc1 $5 $44) 17... Kg7 (17... Qxd1 18. Raxd1 Nxe4 19.
Bxe4 Rb8 (19... Rd8 20. Rd4 Be6 21. Rfd1 Kf8 $10) 20. Rxd6 Be6 21. f4 $14) (
17... Qe6 {Bangiev} 18. Qxd6 Nxe4 19. Qxe6 Bxe6 20. Bxe4 Rab8 $14) 18. Qf3 (18.
Nxf6 Qxd1 19. Raxd1 (19. Rfxd1 {Bangiev} Kxf6 20. Rxd6+ Kg7 21. Be4 $36) 19...
Kxf6 20. Rxd6+ Be6 $10 (20... Be6 {Dautov} 21. Rfd1 Ke7 22. Be4 Rab8 23. f4 f5
24. Bf3 b6 25. Kf2 $14)) (18. Nxf6 $142 {Dautov}) 18... Qe5 {/\Bg4 /\Bg4} 19.
Nxf6 Qxf6 20. Qe4 (20. Qg3+ {Bangiev} Qg5 $1 (20... Kh8 21. Rad1 Rd8 22. Rd4 d5
23. Re1 $44) 21. Qxd6 Rd8 22. Qc7 b5 $36) (20. Qxf6+ {Bangiev} Kxf6 21. Rad1
Rd8 $17) 20... Rg8 21. Rad1 (21. Qxc4 {Dautov} Be6 22. Qd3 Rac8 23. Qxd6 Rxc3
$10) (21. Rfe1 $5 {Dautov}) 21... Kf8 {/\Bh3} (21... Qxc3 $2 22. Qh7+ Kf8 23.
Qxh6+ $16) 22. Rfe1 (22. f4 $2 Qxc3 23. Rxd6 Bh3 $17) (22. Qd4 $5 {/\Be4} Qxd4
23. Rxd4 $14) (22. Qxc4 {Bangiev} Qf3 (22... Bh3 23. Be4 Bxg2 24. Bxg2 Qf3 25.
Qd5 Rxg2+ 26. Kh1 Rg3+ 27. Qxf3 Rxf3 28. Rxd6 Rxc3 29. Rxh6 $10) 23. Be4 Rxg2+
24. Kh1 Rxh2+ $1 (24... Rg4+ 25. Bxf3 Rxc4 26. Rxd6 Rxc3 $15) 25. Kxh2 Qh3+ 26.
Kg1 Qg4+ 27. Kh2 Qh3+ $10) 22... Bg4 (22... Bh3 {Bangiev} 23. g3 $14) 23. Qd4
$8 (23. Rd4 $4 Bf3 $19) (23. Qxb7 $2 {Bangiev} Bf3) 23... Qxd4 24. Rxd4 Bf3 25.
g3 Rd8 (25... d5 $2 26. Re3 $16 (26. Re3 {Bangiev} Bg4 27. Rxd5 $14)) 26. Rxc4
Kg7 $10 {/\Re8} (26... Bc6 {Dautov} 27. Ba4 d5 28. Rd4 Bxa4 29. Rxa4 a6 30. Rd4
$14) 27. Rf4 Bd5 (27... Bc6 28. Re7 Rgf8 29. Bb3 $14) 28. Bb3 (28. c4 Be6 $10)
28... Bxb3 29. axb3 Rge8 30. Rxe8 (30. Ra1 $5 a6 31. Rb4 $36) 30... Rxe8 {
/\Re2-b2 [#]} 31. Kf1 (31. Ra4 $5 $36 {Bangiev} a6 32. c4 (32. Rb4 b5 $5) 32...
Kf6 33. Rb4 Re7 34. Rb6 Ke5 35. f4+ Ke6 36. Kg2 Rc7 37. Kf3 $14) 31... Re5 (
31... Rc8 {Bangiev} 32. c4 Rc6 33. Re4 Rb6 34. Re3 Ra6 $10) 32. Rd4 (32. Ra4 $6
{Bangiev} Rb5 33. b4 a6 $10) 32... Rc5 (32... d5 $6 33. Kg2 $14 {צe5} (33. Rd3
{Dautov} Kf6 34. f4 Rf5 35. Re3 $16)) 33. c4 (33. Rd3 $5 {Dautov}) 33... Rc6 (
33... b5 $5 $10) 34. Ke2 Rb6 35. Rd3 Kf6 36. Kd2 Ke6 37. Kc3 Ra6 38. Re3+ Kf6
39. Rf3+ Ke6 40. Re3+ Kf6 41. Rf3+ Ke6 42. g4 {/\Rh3} Ra2 43. Kd4 Rb2 44. Ke4
a5 45. Rh3 Re2+ (45... Rxf2 {Bangiev} 46. Rxh6+ Ke7 (46... Rf6 $2 47. Rxf6+
Kxf6 48. h4 $18) 47. Rh5 $14) 46. Kf3 Rb2 47. Ke4 Re2+ (47... Rxf2 {Dautov} 48.
Rxh6+ Ke7 49. Rh5 $14) 48. Kd3 Rxf2 49. Rxh6+ Kd7 50. Rh5 Rf3+ 51. Kc2 a4 52.
bxa4 Rf4 53. Kd3 Rxg4 54. Rf5 Rh4 55. Rxf7+ Kc6 56. Rf2 Kc5 57. Rf5+ Kc6 58.
Rf2 Kc5 59. Rf5+ Kc6 1/2-1/2

[Event "Groningen Festival"]
[Site "Groningen"]
[Date "1998.12.28"]
[Round "8"]
[White "Milov, Vadim"]
[Black "Almasi, Zoltan"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2640"]
[BlackElo "2650"]
[Annotator "Hecht,H"]
[PlyCount "111"]
[EventDate "1998.12.20"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "NED"]
[EventCategory "16"]
[SourceTitle "CBM 069"]
[Source "ChessBase"]
[SourceDate "1999.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. e3 Bxc3+ 7. bxc3 Qe7 8. Nf3
Nbd7 9. Be2 h6 10. Bh4 e5 11. Nd2 e4 12. Qb1 O-O 13. O-O Re8 14. Kh1 g5 15. Bg3
Kg7 16. f4 exf3 17. Rxf3 Ne5 18. Rf1 Bg4 19. Qd1 Bxe2 20. Qxe2 Neg4 21. Rf3 Nh5
22. Bf2 Qd7 23. Rf1 Ne5 24. Rh3 Nf6 25. e4 Ng6 26. Re3 Ng4 27. Rf3 N4e5 28. Rf5
Nf4 29. Qd1 Neg6 30. Bg3 Rxe4 31. Rxf7+ Qxf7 32. Nxe4 Qd7 33. Bxf4 gxf4 34. g3
Re8 35. Qf3 Qe7 36. Re1 Rf8 37. Qf2 Qd7 38. gxf4 Rxf4 39. Qg3 Qf5 40. Nxd6 Qf8
41. Re6 Rg4 42. Ne8+ Kh8 43. Rf6 Qxf6 44. Nxf6 Rxg3 45. hxg3 {[#] Die
schwдchlichen weiЯen Bauern ermцglichen Schwarz das Remis.} Ne5 46. d6 Kg7 47.
d7 Nc6 48. Ne8+ Kg6 49. Kg2 Nd8 50. Kh3 Kf7 51. Kg4 Ke6 52. Kh5 Kxd7 53. Nf6+ (
53. Ng7 $5 {[%csl Ge6,Rh6]} Nf7 (53... Nc6 54. Nf5 Ne5 55. Ne3 {[%csl Rh6]})
54. Kg6 (54. Nf5 Ke6 55. Ne3 Kf6 56. Ng4+ Kg7 57. a4 b6 $11) 54... Ne5+ 55.
Kxh6 Nxc4 56. g4 Ne5 57. g5 b5 $11) 53... Ke6 54. Ne4 b6 55. Kxh6 Kf5 56. Nd6+
1/2-1/2

[Event "Balatonbereny GM"]
[Site "Balatonbereny"]
[Date "1996.??.??"]
[Round "11"]
[White "Dao, Thien Hai"]
[Black "Palkovi, Jozsef"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "2560"]
[BlackElo "2480"]
[Annotator "King,D"]
[PlyCount "81"]
[EventDate "1996.06.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[EventCategory "11"]
[SourceTitle "CBM 055"]
[Source "ChessBase"]
[SourceDate "1996.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.12.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 h6 6. Bh4 b5 7. cxb5 Bb7 8. e3
Bxd5 9. a3 Ba5 10. Nf3 Bb7 11. Be2 d5 12. O-O Nbd7 13. Na4 Bc7 14. Rc1 Rc8 15.
b4 Bd6 16. bxc5 Nxc5 17. Nxc5 Bxc5 18. Ne5 Qd6 19. Nd3 Bb6 20. Rxc8+ Bxc8 {
King: Black looks to have a completely satisfactory position, but White's next
overturns that assessment.} 21. Qa1 $1 {In order to parry the threat to f6
Black must either lose control over the long diagonal, or push the d-pawn. He
decides on the latter, but the result is that he loses control over the centre.
} d4 22. Bg3 Qd8 23. exd4 Bxd4 24. Qc1 O-O 25. Nb4 Nd5 26. Nc6 Qf6 27. Qc4 Bb6
28. a4 Bb7 29. a5 Bd8 30. Be5 Qg5 31. Bd6 Re8 32. Bf3 Bf6 33. Nxa7 Ne3 34. Qf4
Bxf3 35. Qxg5 Bxg5 36. gxf3 Nxf1 37. Kxf1 Bd2 38. Nc6 f6 39. a6 Kf7 40. a7 Rc8
41. Bb8 1-0

[Event "Berliner Sommer 05th"]
[Site "Berlin West"]
[Date "1987.08.15"]
[Round "8"]
[White "Lieb, Harald"]
[Black "Ionescu, Constantin"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "2305"]
[BlackElo "2475"]
[Annotator "Lieb,H"]
[PlyCount "254"]
[EventDate "1987.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 d6 6. Rc1 exd5 7. cxd5 O-O 8. e3
a6 9. Bd3 Nbd7 10. Nge2 Ne5 11. Bb1 h6 12. Bh4 Ng6 13. Bg3 Nh5 14. Qc2 Re8 15.
O-O Nf8 16. e4 b5 17. a3 Ba5 18. Nd1 Nxg3 19. Nxg3 Bd7 20. Ne3 Qf6 21. Nef5 g6
22. Ne3 c4 23. Kh1 Bb6 24. Rce1 Qf4 25. Ne2 Qh4 26. Qd2 Nh7 27. f3 Nf6 28. g3
Qh5 29. Ng2 Kg7 30. Nc3 Qe5 31. Re2 Re7 32. Rd1 Rae8 33. Qe1 Qh5 34. Qf1 Qh3
35. Red2 Bc8 36. Ne2 Qd7 37. Nd4 Rh8 38. Ne3 Ree8 39. Qg2 h5 40. h4 Qh3+ 41.
Kg1 Qxg2+ 42. Kxg2 Bd7 43. Nec2 Rc8 44. Nb4 c3 45. bxc3 Rxc3 46. Nxa6 Rxa3 47.
Nb4 Bc5 48. Nbc6 b4 49. Rb2 Rha8 50. Rd3 Bc8 51. Rdd2 Rc3 52. Nxb4 Ra4 53. Nbc6
Ba6 54. Ra2 Rxa2 55. Rxa2 Bc8 56. Bc2 Bb7 57. Nb5 Re3 58. Bd1 Re1 59. Be2 Rg1+
60. Kh2 Rb1 61. Nc3 Rc1 62. Na4 Be3 63. Na5 Bc8 64. Nc4 Bg1+ 65. Kg2 Ne8 66.
Nab6 Bxb6 67. Nxb6 Bb7 68. Ra7 Rc7 69. Kf2 Kf8 70. Ke3 Ke7 71. Kd4 Kd8 72. Bb5
Bxd5 73. Ra3 Bb7 74. Nc4 Bc6 75. Bxc6 Rxc6 76. Ra8+ Ke7 77. Ra7+ Ke6 78. Ne3
Nc7 79. Rb7 Rc5 80. Rb6 Rb5 81. Rc6 Kd7 82. Rc2 Rb3 83. Re2 Ra3 84. Kc4 Ne6 85.
Kb4 Rd3 86. Kc4 Ra3 87. Re1 Nc5 88. Re2 Nd3 89. f4 Nc1 90. Re1 Ra4+ 91. Kd5
Ra5+ 92. Kd4 Nb3+ 93. Kc3 Nc5 94. Nc4 Ra2 95. e5 d5 96. Rd1 Ke6 97. Nb6 Ne4+
98. Kb3 Rd2 99. Rxd2 Nxd2+ 100. Kc3 Ne4+ 101. Kd4 Nxg3 102. Nxd5 Nf5+ 103. Ke4
Nxh4 104. Nf6 Nf5 105. Nh7 Ke7 106. Ng5 Ng7 107. Nf3 f6 108. Nh4 Kf7 109. Nf3
Nf5 110. exf6 Kxf6 111. Ng5 Nd6+ 112. Kf3 Kf5 113. Nh3 Ne4 114. Ng1 Nc3 115.
Nh3 Nd5 116. Kg3 Ke4 117. Ng5+ Ke3 118. Nh3 Ne7 119. Kh4 Kf3 120. Kg5 Kg3 121.
Ng1 $2 (121. f5 Nxf5 122. Nf4 h4 $19) 121... h4 122. Kf6 Kxf4 123. Kxe7 g5 124.
Kf6 g4 125. Ne2+ Kf3 126. Kg5 h3 127. Nd4+ Kf2 0-1

[Event "EU-ch 12th"]
[Site "Aix les Bains"]
[Date "2011.03.30"]
[Round "8"]
[White "Ivanisevic, Ivan"]
[Black "Naiditsch, Arkadij"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "2617"]
[BlackElo "2684"]
[Annotator "Marchand,A/Primel,D"]
[PlyCount "61"]
[EventDate "2011.03.22"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "FRA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 (4... h6 {La ligne principale mais
c'est souvent une simple interversion de coups aprиs la poussйe h6}) 5. d5 h6 (
5... d6) (5... Bxc3+) 6. Bh4 O-O {Le oo est assez rarement jouй dans la
variante Leningrad car les Noirs ont souvent besoin de jouer la poussйe g7g5
pour se dйclouer} (6... Bxc3+) (6... b5 $1 {Le mкme thиme que dans la partie
mais c'est beaucoup moins risquй qu'aprиs le oo} 7. dxe6 (7. cxb5 exd5 (7... g5
) 8. e3 Bb7 9. Nge2 a6 {Lempert,I (2505)-Razuvaev,Y (2580) Yerevan op 1996 (6)
1/2} (9... O-O $1 $32)) 7... fxe6 $44 {[%cal Gd7d5]}) (6... d6 7. e3 Bxc3+ 8.
bxc3 e5 9. Nf3 (9. Bd3 e4 10. Bc2 Nbd7 11. Ne2 Qe7 12. Qb1 {[%csl Re4]} g5 (
12... O-O) (12... Kd8 {Un thиme courant йgalement dans cette variante Leningrad
} 13. a4 a5 14. Ra2 Kc7 $13) 13. Bg3 Nf8 14. h4 Rg8 15. hxg5 $14 {Topalov,V 
(2520)-Sax,G (2565) Elenite 1992 (2) 1/2}) 9... Bf5 $11) (6... exd5 7. cxd5 d6
8. e3 O-O 9. Bd3 Nbd7 10. Nge2 Ne5 11. O-O Ng6 $11 {Moiseenko,A (2715)-Bacrot,
E (2714) San Sebastian KO GpA 2011 (5) 1/2}) 7. e3 {83} b5 {[%csl Re1] 79} (
7... d6) 8. cxb5 (8. dxe6 fxe6 9. cxb5 a6 10. Bd3 axb5 11. Nge2 Bb7 12. O-O c4
13. Bc2 Qb6 14. a3 Bc5 15. Bxf6 Rxf6 16. Ng3 d5 17. Kh1 Nd7 18. b4 cxb3 19.
Bxb3 Rxa3 20. Rb1 Qc6 21. e4 d4 22. Nxb5 Ba6 {Harikrishna,P (2668)-Polgar,J 
(2708)/Bilbao 2007/CBM 120 ext/0-1 (36)}) (8. Qf3 {[%cal Gf3f6,Gh4f6,Gf3a8]}
Bb7 {Timman,J (2620)-Jussupow,A (2660) Hilversum KRO m 1986 (6) 1/2} (8... g5
$6 9. Bg3 Bxc3+ 10. bxc3 exd5 11. h4 $36 {[%csl Rg8]})) 8... exd5 (8... Bb7 $1
{Plus dynamque} 9. dxe6 (9. Nf3 Bxd5 $11) 9... fxe6 $44 {[%csl Re1][%cal Gd7d5]
} 10. Nf3 Qa5 {[%csl Rc3]} 11. Bxf6 Rxf6 12. Qd2 a6 $1 13. bxa6 Bxf3 14. gxf3
Nc6 $32 {[%csl Re1]} 15. Be2 {Timman,J (2590)-Ligterink,G (2430) Hoogovens
Wijk aan Zee 1977 (9) 1-0} (15. a3 Ne5 {[%csl Rf3]})) 9. Bd3 $146 {80} ({RR} 9.
a3 Ba5 10. Nf3 Bb7 11. Be2 d6 12. O-O Bxc3 13. bxc3 Nbd7 14. Nd2 Ne5 15. a4 a6
16. Qc2 Ng6 17. Bg3 Re8 18. Rfe1 h5 19. h3 axb5 20. Bxb5 Re6 21. Bd3 h4 22. Bh2
Ne4 23. c4 Nxd2 {Oms Pallisse,J (2501)-Colon Garcia,E (2323)/Sabadell 2010/CBM
136 Extra/1-0 (61)}) 9... Bb7 {57} 10. Nge2 {79} d6 {50} 11. O-O Nbd7 $44 {
[%cal Gd7e5,Ge5d3,Ge5g6,Gg6h4]} 12. a3 Ba5 13. Bb1 (13. Bf5 $5 {[%cal Gh4d8,
Gf5d7]}) 13... a6 $1 14. b4 $1 (14. bxa6 Bxa6 15. Nxd5 g5 16. Nxf6+ Qxf6 17.
Bg3 Rfb8 {[%csl Ra1,Rb2]} (17... Rab8)) 14... cxb4 (14... Bb6 15. Ba2 $36 {
[%csl Rd5]}) 15. axb4 {58} Bxb4 16. bxa6 Bxc3 17. Nxc3 Rxa6 18. Bf5 $1 {
[%csl Rd5,Gf5][%cal Gf5d7,Gh4f6] La paire de B des Blancs donne une petite
initiative aux Blancs} Nc5 19. Rb1 Re8 20. Qd4 {[%csl Rf6]} Re5 (20... g5 $5 {
Le clouage du Bh4 est assez pйnible et les Blancs vont d'ailleurs en profiter
dans la partie avec la petite combinaison Rb7. En consйquence, la poussйe
thйmatique g5 йtait un coup candidat intйressant} 21. Bg3 Qe7 (21... Bc6) 22.
Rfd1 $44 (22. h4 Nfe4 $132)) (20... Bc6 $5 {Libиre le Nc5 de la protection du
Bb7 et c'йtait peut-кtre l'option la plus souple mais la position Blanche
reste plus agrйable а jouer.} 21. Rfd1 (21. Nxd5) (21. Bxf6) 21... Ne6 $13) 21.
Bc2 Ra8 22. f4 {[%csl Re3]} Re8 23. Rxb7 $1 Nxb7 24. Nxd5 {[%csl Gh4]} Qc8 25.
Nxf6+ gxf6 26. Bb3 $40 {[%csl Rg8][%cal Gb3g8,Gd4f6,Gf6g6]} Qc5 (26... Ra3 27.
Bxf7+ $1) (26... Qg4 $142 27. Bxf6 (27. Qxf6 Qg7) 27... Nc5) 27. Bxf7+ $1 Kxf7
28. Qxf6+ Kg8 29. Qg6+ Kf8 30. Qxh6+ Kg8 $4 (30... Kf7 $8 {Il restait pourtant
а l'allemand une dizaine de minutes а la pendule}) 31. Bf6 1-0

[Event "Benasque op 19th"]
[Site "Benasque"]
[Date "1999.??.??"]
[Round "5"]
[White "Marin, Mihail"]
[Black "Gaprindashvili, Valerian"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2527"]
[BlackElo "2414"]
[Annotator "Marin,M"]
[PlyCount "112"]
[EventDate "1999.07.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ESP"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Bg5 c5 5. d5 Bxc3+ 6. bxc3 e5 $5 7. e3 (7. Nf3
) 7... Qa5 $1 8. Ne2 Ne4 $1 9. Bh4 Nd6 (9... Nxc3 10. Qd2) (9... g5 10. Qc2 f5
(10... Nxc3 11. Nxc3 gxh4 12. Bd3) 11. f3 Nxc3 12. Qxc3 Qxc3+ 13. Nxc3 gxh4 14.
Nb5 Kd8 15. Nd6 Rf8 16. Bd3) 10. Qb3 (10. Qd3 b6) 10... Nf5 11. Bg3 d6 $132 12.
Kd2 $2 (12. e4 Ne7 (12... Nd4 13. Nxd4 cxd4 14. f4) (12... Nxg3 13. hxg3 Nd7
14. g4) 13. f4 f6) (12. f4 Nxe3 (12... f6) (12... Nxg3 13. hxg3 Nd7 14. g4 exf4
15. exf4 Nf6 16. g5 Ne4 17. Qc2 f5 18. gxf6 Nxf6 19. Ng3 Bg4) 13. fxe5 dxe5 14.
Bxe5 O-O) 12... a6 $1 13. f3 b5 14. Bf2 Nd7 $17 15. Ng3 bxc4 16. Bxc4 Nxg3 17.
hxg3 Rb8 18. Qc2 Nb6 19. Bd3 Nxd5 20. Bxh7 Be6 21. Rhb1 Ke7 22. Bd3 Nb6 23. Ke2
c4 24. Be4 g6 25. Qd2 Na4 26. Be1 Nc5 27. Bc2 Rxb1 28. Rxb1 Qxa2 29. Rb6 Rd8
30. g4 Qa5 31. Rb4 g5 32. e4 f6 33. Bf2 Qc7 34. Qc1 a5 35. Rb1 Rb8 36. Rxb8
Qxb8 37. Bxc5 dxc5 38. Qa3 Qb6 39. Kd2 Bd7 40. Kc1 Qb5 41. Qb2 Qa6 42. Qa3 Kd6
43. Kd2 a4 44. Kc1 Bc6 45. Kb2 Qa8 46. Qa1 Kc7 47. Ka3 Qa5 48. Qe1 Kb6 49. Qd2
Qa8 50. Qd1 Qh8 51. Qb1+ Kc7 52. Qg1 Qf8 53. Qf1 Bb5 54. Qb1 Qe8 55. Qd1 Bc6
56. Qg1 Qf8 1/2-1/2

[Event "EU-chT (Men) 18th"]
[Site "Porto Carras"]
[Date "2011.11.05"]
[Round "3.4"]
[White "Arizmendi Martinez, Julen Luis"]
[Black "Szabo, Gergely Andras"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "2568"]
[BlackElo "2553"]
[Annotator "Marin,M"]
[PlyCount "81"]
[EventDate "2011.11.03"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 146"]
[Source "ChessBase"]
[SourceDate "2012.01.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.01.18"]
[SourceQuality "1"]
[WhiteTeam "Spain"]
[BlackTeam "Romania"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 {This old weapon of Spassky, once known
as the Leningrad variation, is a very rare guest in contemporary grandmaster
practice. Nimzo-Indian players seem absorbed by the exhaustive study of the 4.
Qc2 lines that they sometimes tend to "forget" that White has a relatively
wide choice on the fourth move. More than 10 years ago, I played this line
with White once and my opponent thought for about one hour on his next three
moves! (true, he soon got a close to winning position, with very original play)
. Gergely also seemed to be caught by surprise by Julen's opening choice. He
played slowly and reacted inadequately.} h6 5. Bh4 O-O {He probably thought to
play flexibly, but defining the king's position so soon is the most committal
decision of all!} ({One of the main lines goes} 5... c5 6. d5 Bxc3+ 7. bxc3 d6
8. e3 e5 (8... Qe7 {is an alternative, but after} 9. Bd3 Nbd7 10. Nf3 e5 11.
Nd2 g5 12. Bg3 {White manages to regroup harmoniously with his minor pieces.})
9. Bd3 e4 10. Bc2 Qe7 11. Ne2 g5 12. Bg3 {This kind of position is very
complicated. Black will play ...Nbd7 followed by ...Kd8-c7. White's knight is
very restricted by the black pawns and the final outcome of the opening
greatly depends on whether he will manage to find a way of making the
sacrifice Ne2-d4 work.}) 6. e3 c5 7. d5 Bxc3+ 8. bxc3 d6 9. Nf3 Re8 (9... e5
10. Nd2 Bf5 (10... Nbd7 11. Bd3 Re8 {may transpose to the game.}) 11. e4 Bc8 {
leads to considerable loss of time for Black.} 12. Bd3 Nbd7 13. f3 Re8 14. Bf2
Nf8 15. g3 Ng6 16. Be3 $14 {Rogozenko,D (2440)-Bako,V (2265)/Hungary 1995/EXT
99 (1-0, 33)}) 10. Bd3 e5 11. Nd2 {Once again, White has managed to arrange
his minor pieces harmoniously. What's worse for Black, his king finds itself
in the most dangerous area of the board.} g5 $146 {A thematic move, and an
over-the-board novelty. If Black refrains from this and the next resolute
moves, weakening the king's position radically, he should permanently count
with f2-f4.} (11... Nbd7 12. O-O Nf8 13. f4 (13. Qc2 g5 14. Bg3 Nh5 15. f4 $36
{Mchedlishvili,M (2380)-Liang Chong (2360)/Yerevan 1997/EXT 2008 (1/2, 30)})
13... exf4 14. exf4 Ng6 15. Bxf6 Qxf6 16. Ne4 Qd8 17. Qh5 $36 {Hoi,C (2425)
-Kristensen,B (2415)/Tastrup 1997/EXT 99 (1-0, 39)}) 12. Bg3 e4 13. Bc2 Qe7 14.
O-O Nbd7 {Obstructing the bishop is not without drawbacks: White gets the
oppostunity of regrouping all his pieces for the attack. However, Black had no
favourable ways of inserting the bishop's development.} (14... Bf5 15. f4 (15.
f3 Nbd7 16. fxe4 Bg6 17. Qf3 Nh5 18. Ba4 $1 $14) 15... g4 (15... Bg6 16. fxg5
hxg5 17. h4 Nh5 18. Bh2 gxh4 19. Nxe4 $1 $16) 16. Rb1 b6 17. Bh4 Nbd7 18. Ba4
Red8 19. h3 $5 $36 gxh3 $140 20. Qh5 $1 Nxh5 21. Bxe7 $16) (14... Bg4 15. Qb1
$1 {[%cal Gc2e4,Gb1b7,Ga2a4] In many cases, an optimal square for the queen.} (
15. f3 exf3 16. gxf3 Bh3 17. Re1 Nbd7 $13) 15... b6 16. a4 {This would be a
punch in thin air if Black could play ...a5, but here the b6-pawn is hanging.}
Nbd7 17. a5 $14) 15. Qe2 Kg7 16. Rae1 $16 Nf8 {It is painful to take the
knight away from the e5-square, but there is nothing better.} ({The
prophylactic} 16... b6 {delays the development too much:} 17. f3 exf3 18. Qxf3
Ne5 $2 19. Bxe5 Qxe5 (19... dxe5 20. d6 Qxd6 21. Ne4 $18) 20. Ne4 Nxe4 21.
Qxf7+ Kh8 22. Bxe4 Qxe4 23. Rf6 Bf5 24. Rxh6+ Bh7 25. Qf6+ Kg8 26. Qxg5+ Kh8
27. Qf6+ Kg8 28. Rh3 $18) (16... Ne5 {loses a pawn without compensation:} 17.
Nxe4 Nxe4 18. Bxe4 Nxc4 19. Qxc4 Qxe4 20. Qxe4 Rxe4 21. Bxd6 $16) 17. f3 $1 {
White is better developed and is entitled to open the position.} exf3 18. Qxf3
{White has strong kingside pressure. Black cannot stablise the position with a
knight transfer to e5 too easily, while the thematic exchange sacrifice Qxf6+
is looming.} Bg4 (18... Ng6 19. Qxf6+ Qxf6 20. Rxf6 Kxf6 21. Bxd6 b6 22. Ba4 {
/\Bc6} Rd8 23. Bc7 $16 {/\Bc6}) (18... b6 19. Qxf6+ Qxf6 20. Rxf6 Kxf6 21. Bxd6
Bd7 22. Ne4+ Kg7 23. Ng3 $16) 19. Qf2 $6 $14 (19. Qxf6+ Qxf6 20. Rxf6 Kxf6 21.
Bxd6 b6 22. h3 $1 {It is useful to force the bishop to define its intentions.}
(22. Ne4+ Kg7 23. Ng3 Rad8 $14) (22. e4 Rad8 $14) 22... Bh5 (22... Bd7 23. Ne4+
Kg7 24. Ng3 $16) 23. e4 $16 Rad8 $140 24. e5+ Kg7 25. Ba4 $1) 19... N8d7 20. h3
Bh5 21. Bf5 Ne5 22. Bh2 Bg6 23. Qe2 a6 (23... b5 24. cxb5 Nxd5 25. Bxe5+ Qxe5
26. Nc4 $36 Qxc3 27. Bxg6 fxg6 28. Rc1 Rxe3 (28... Qb4 29. Qf3 $18) 29. Qf2 $40
) 24. a4 b5 $6 {Too optimistic.} ({However, even after a half-waiting move
such as} 24... b6 {White would maintain his advantage. A possible plan is} 25.
Rf2 $14 {/\e3-e4, Nf1e3; /\Ref1}) 25. axb5 axb5 26. cxb5 Ra2 (26... Nxd5 27.
Bxg6 (27. Ne4 $5) 27... fxg6 28. c4 Nc3 29. Bxe5+ Qxe5 30. Qd3 $16) 27. e4 $16
c4 28. Bxg6 fxg6 29. Qe3 $1 {Getting out of the pin and centralising the queen.
} Nfd7 30. Qd4 $18 Kg8 31. Nf3 Rc2 32. Bxe5 Nxe5 33. Nxe5 Qxe5 34. Qxe5 Rxe5
35. Rf6 Rxc3 36. Rxg6+ Kf7 37. Rxd6 Rb3 38. b6 g4 39. hxg4 Rg5 40. Rf1+ Ke7 41.
Re6+ 1-0

[Event "Bundesliga 1112"]
[Site "Germany"]
[Date "2011.11.19"]
[Round "4.2"]
[White "Stern, Rene"]
[Black "Ghaem Maghami, Ehsan"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "2506"]
[BlackElo "2583"]
[Annotator "RR"]
[PlyCount "61"]
[EventDate "2011.10.14"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 146"]
[Source "ChessBase"]
[SourceDate "2012.01.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.01.18"]
[SourceQuality "1"]
[WhiteTeam "Koenig Tegel"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 b5 6. dxe6 fxe6 7. cxb5 d5 8. a3
Ba5 9. e3 O-O 10. Bd3 Nbd7 11. Nge2 Bc7 12. Bh4 Bb7 13. Bg3 e5 14. O-O Qe7 15.
Rc1 Rad8 16. Qa4 c4 17. Bb1 Nc5 18. Qc2 Nb3 19. Rce1 Qf7 20. Nc1 d4 21. exd4
exd4 22. Bxc7 d3 23. Nxd3 Rxd3 24. Bg3 Nd2 25. Ba2 Rfd8 26. Rd1 $2 (26. Nb1
R8d4 27. Nxd2 $18) 26... Kh8 $11 27. Rfe1 Nh5 28. Re2 $4 (28. Re3 Rxe3 29. fxe3
$11) {[%tqu "En","","","","d2f3","",10]} 28... Nf3+ $1 $19 29. Kf1 Nxg3+ 30.
hxg3 Qh5 31. Re4 0-1

[Event "SWE-ch"]
[Site "Linkoping"]
[Date "2001.07.10"]
[Round "9"]
[White "Agrest, Evgenij"]
[Black "Berg, Emanuel"]
[Result "1/2-1/2"]
[ECO "E30"]
[WhiteElo "2529"]
[BlackElo "2496"]
[Annotator "Ziegler,A"]
[PlyCount "128"]
[EventDate "2001.06.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "SWE"]
[EventCategory "8"]
[SourceTitle "CBM 085"]
[Source "ChessBase"]
[SourceDate "2001.11.13"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.13"]
[SourceQuality "1"]

{This was the only game where Agrest was close to the defeat. His worst game
in the competition.} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Bg5 b6 (4... h6 {Is more
stringent.}) 5. f3 {Agrest wishes to lure his young opponent into unknown
territory.} (5. Nf3 {Is the main move.}) 5... h6 6. Bh4 Be7 $6 {Black plays
passive without reason.} (6... c5 $1) 7. Bf2 d5 8. cxd5 ({Vit kunde ocksе
satsat pе ett brett centrum med: White could also go for a broad centre with:} 
8. e4) 8... exd5 9. e3 O-O 10. Bd3 c5 {Black has no problems. The only
weakness is the h6-pawn, which won't cause no harm.} 11. Nge2 Nc6 ({The
flexible} 11... Re8 {was somewhat more precise.}) 12. O-O c4 {Black is anxious
to create some play.} 13. Bb1 b5 14. a3 Rb8 15. h3 b4 (15... a5 {looked more
like it.}) 16. axb4 Rxb4 17. Qc1 Nh5 $6 {What's up? Who turned on the
randomizer? You can't play like this. One of white's standard plans is (Kh1),
g4, Rg1, and black is willing to lose two tempis to get white into it.} (17...
Qb6) 18. Qc2 (18. e4 Nf6 19. Nxd5 Nxd5 20. exd5 Qxd5 21. Be4 Qd6 22. Bxc6 Qxc6
23. Rxa7 {Gives white a meaningless pawn.}) 18... g6 19. e4 $1 {White don't
asks twice before starting centre play.} Be6 20. g4 $6 {To play both e4 and g4
is to greedy. White should console himself with modest centre play.} (20. exd5
Bxd5 21. Nxd5 Qxd5 22. Nc3 Qd6 23. d5 Ne5 24. Rxa7 {With a position which
Agrest wins 99 out of 100.}) (20. Be3 $5) 20... Nf6 21. e5 Ne8 22. Be3 Ng7 23.
Qd2 (23. Bxh6 Qb6) 23... h5 {Black strikes back!} 24. Rf2 Qd7 25. Nf4 Rfb8 26.
Nd1 c3 {Berg prefers wild action instead of pressure.} (26... Rb3 {Was a good
move, or possibly 26...h4 first.}) 27. Nxc3 hxg4 28. hxg4 Nxe5 {Damn. The kid
shows no respect. The move deserves an ! if one thinks of the complexity which
it creates.} 29. dxe5 d4 30. Nxe6 Nxe6 31. Nd1 (31. Bh6 Rxb2 32. Qd1 (32. Bc2
Rxc2 33. Qxc2 dxc3 34. Qxc3 Bb4 35. Qb2 Qc7 {Is equal.}) 32... Rxf2 33. Kxf2
Qc7 34. Ne4 Rb2+ 35. Kg1 Qxe5 {With compensation.}) 31... Nc5 32. Bf4 Nb3 33.
Qd3 $2 {The ground is shaking beneth Agrests feet.} (33. e6 $1 Qxe6 34. Ba2 {
And black's fun would soon be over.}) 33... Nxa1 34. Ba2 Nb3 35. e6 Qxe6 $2 (
35... Qb5 $1 {And white really would have fight like hell just to be in the
game.}) 36. Bxb8 Nc1 37. Qe4 Qxe4 $6 (37... Nxa2 $1) 38. Bxf7+ Kxf7 39. fxe4+
Ke6 40. Bxa7 Ke5 (40... Nd3 $1 41. Rc2 Ne5 $1) 41. Rc2 {The timetrouble was
over, Agrest looked like dark clouds.} Nd3 42. Rc6 Kf4 {Black is trying some
mating threats.} (42... Ra4 43. Bb8+ Kxe4 44. Rxg6 Kf3 45. Rg7 Bc5 {Oklart
spel.}) 43. Kg2 Nxb2 44. Nf2 Bh4 45. Rxg6 Bxf2 46. Kxf2 d3 47. Be3+ Kxe4 48.
Bd2 {It's a draw now but they jab a little.} Nd1+ 49. Kg3 Rb2 50. Bf4 Nc3 51.
Re6+ Kd5 52. Rd6+ Ke4 53. Re6+ Kd5 54. Rd6+ Kc4 55. Kf3 Nb5 56. Rd8 Nd4+ 57.
Ke4 Ne6 58. Rc8+ Nc5+ 59. Kf3 Kd5 60. Rd8+ Ke6 61. Rd6+ Ke7 62. Rd5 Ne6 63.
Bd6+ Kf7 64. Rxd3 Rb3 {One of the toughest games in the ch.} 1/2-1/2