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[Event "Arthur Andersen sim"]
[Site "France"]
[Date "2000.??.??"]
[Round "?"]
[White "Adams, Michael"]
[Black "Vachier Lagrave, Maxime"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2715"]
[BlackElo "2185"]
[PlyCount "67"]
[EventDate "2000.??.??"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "FRA"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nf6 6. Nc3 Nc6 7. Be3 O-O 8.
Be2 d6 9. O-O Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. Rac1 a4 14. Rfd1 Nd7
15. Be3 Nc5 16. Nd5 Bxd5 $6 {Cambio prematuro} 17. cxd5 $1 {Las negras están
sólidas en c5, pero pasivas y las blancas pueden progresar} (17. exd5 {no es
claro que de ventaja} Qd7 18. Rc2 Rfc8 19. Bf1 Qf5 $13) (17. Rc2 --) 17... b6
$6 (17... Qb6 18. Rc2 Rfc8 19. Rdc1 {Ahora las negras están situadas
idealmente, solo pueden esperar.} (19. Rb1 {preparar b4 aqui es dificil} Bf6
20. f4 (20. b4 $2 axb3 21. axb3 Bg5 $1) 20... Bg7 21. b4 $6 (21. Rbc1) 21...
axb3 22. axb3 Qd8 {[%csl Ge4]} 23. e5 Ne4 24. Qd3 Nc5 25. Qb5 $14) 19... Qd8 (
19... Bf6 20. g3 Bg7 21. Bf1 $14) 20. Bf1 Bf6 (20... Qb6 21. g3) (20... a3 $6
21. b4 $1 Nd7 22. Rc4 Bb2 23. R1c2 $14) 21. g3 Bg7 22. Bh3 $16) 18. Bb5 $1 $16
Qc7 19. Rc2 Qa7 20. Bc6 Rab8 21. Rb1 $1 {La preparación de b4 es uno de los
planes básicos de las blancas.} Rfc8 22. b4 $1 $16 Nb7 23. a3 Nd8 24. Rbc1 Qa6
25. b5 Qa7 26. Rc4 Nb7 27. Bxb7 Rxc4 28. Rxc4 Qxb7 29. Qc2 Kf8 30. Rxa4 Rc8 31.
Rc4 Rxc4 32. Qxc4 Bf6 33. Qc6 Qb8 34. Qxb6 1-0

[Event "CRO-chT"]
[Site "Sibenik"]
[Date "2007.10.16"]
[Round "4"]
[White "Almasi, Zoltan"]
[Black "Malakhov, Vladimir"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2691"]
[BlackElo "2690"]
[PlyCount "67"]
[EventDate "2007.10.13"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "CRO"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8.
Qxd4 Bg7 9. Be3 O-O 10. Qd2 Be6 11. Rc1 a5 12. f3 a4 {Un plan que está muy de
moda.} 13. Nd5 $5 {Dificulta el acceso de la dama a a5.} Nd7 (13... Nxd5 {no
iguala del todo} 14. cxd5 Bd7 15. O-O Rc8 (15... Qa5 $2 16. Qxa5 Rxa5 17. Bb6
$16) (15... a3 16. bxa3 Rxa3 17. Bc4 $14) 16. Bc4 $14 {[%cal Gd2b4]}) 14. O-O
Nc5 15. Rfd1 Bxd5 $6 {Muy curioso. Despues de la captura es la misma posición
que la partida Adams - Vachier} 16. cxd5 Qa5 17. Qxa5 Rxa5 18. Rc2 $14 Rb8 19.
Bd2 $6 Raa8 20. Bb5 $6 {Pasando por alto un recurso típico} a3 $1 21. bxa3 (21.
b4 $5 Nb3 $1 22. Rc4 Rc8) 21... Rxa3 $11 22. Bb4 Ra7 23. Kf2 Rba8 24. Rdd2 h5
25. h4 Be5 26. g3 Kh7 27. Kg2 Na6 28. Ba5 Nc5 29. Bb4 Na6 30. Bxa6 bxa6 31. f4
Bg7 32. Ba5 Rb8 33. Rc6 Rb1 34. Rc7 1/2-1/2

[Event "EU-Cup 18th"]
[Site "Chalkidiki"]
[Date "2002.09.22"]
[Round "1"]
[White "Khalifman, Alexander"]
[Black "Berndt, Stephan"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2690"]
[BlackElo "2482"]
[PlyCount "75"]
[EventDate "2002.09.22"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GRE"]
[Source "ChessBase"]
[SourceDate "2003.02.06"]

1. Nf3 g6 2. e4 c5 3. c4 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Nc3 d6 8. Be2
O-O 9. O-O Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 {La principal jugada}
Nd7 14. Be3 Nc5 15. Rab1 $1 {El plan que ha echa esta variante abajo} Qb6 16.
Rfc1 Rfc8 17. Rc2 Qd8 18. Bf1 Qf8 19. Nd5 Bxd5 20. exd5 $1 {La decisión de
todos los expertos. Pero los módulos no la aprueban. Intentaremos ver si
llevan razón.} (20. cxd5 {Esta jugada no parece asegurar ni una ligera ventaja
porque b4 no es posible.} h5 {[%cal Gg8h7,Gg7h6]} 21. Rbc1 (21. a3 $2 a4 $1 22.
b4 Nb3 $11) 21... Kh7 22. Rc4 (22. Bxc5 Rxc5 23. Rxc5 dxc5 24. Rxc5 Rc8 25. Rc4
Rxc4 26. Bxc4 f5 {no debe ser bastante para las blancas}) 22... Bh6 23. f4 b6
24. Qd1 Bg7 25. Qf3) (20. Qxd5 $5 {[%cal Ga2a3,Gb3b4]} Bh6 21. Bf2 Rc6 22. a3
e6 23. Qd1 Qe7 24. b4 axb4 25. axb4 Nd7 26. Ra1 $14) 20... Rc7 (20... h5 21.
Re1 Kh7 22. h3 $1 Rc7 23. g4 Bh6 24. f4 hxg4 25. hxg4 Kg8 26. Bh3 Bg7 27. f5
Be5 28. fxg6 fxg6 29. Bxc5 Rxc5 30. Rf1 Qg7 31. g5 Bd4+ 32. Kh1 Qh7 33. Kg2 Qh4
34. Be6+ Kg7 35. Qf4 {1-0 Holzke,F (2492)-Vuckovic,A (2325)/Germany 2004/CBM
105/[Mikhalevski,V]}) (20... Bf6 21. a3 $5 a4 22. b4 Nb3 23. Qd3) 21. a3 b6 22.
Bg5 h6 23. Be3 g5 24. Qf2 Rb7 25. g3 Bf6 26. b4 axb4 27. axb4 Nd7 28. Bh3 Ne5
29. f4 Nd3 30. Qe2 gxf4 31. gxf4 Qg7+ 32. Kh1 Qh7 33. Rg1+ Kh8 34. Qh5 e6 35.
Rcg2 Re7 36. dxe6 fxe6 37. Rg6 Bg7 38. Bxe6 1-0

[Event "Politiken Cup 30th"]
[Site "Helsingor"]
[Date "2008.07.23"]
[Round "6"]
[White "Malakhov, Vladimir"]
[Black "Tiviakov, Sergei"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2689"]
[BlackElo "2645"]
[PlyCount "140"]
[EventDate "2008.07.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8.
Be2 Bg7 9. Be3 O-O 10. Qd2 a5 11. O-O a4 {El plan de moda} 12. f3 Be6 13. Rac1
Qa5 {[%csl Gc4][%cal Gf8c8]} 14. Nd5 $5 {Parece el unico intento} Bxd5 $6 {No
parece creible que los 2 máximos especialistas mundiales del DR AC no conozcan
el truco, así que hay gato encerrado.} (14... Qxd2 $1 15. Nxe7+ Kh8 16. Bxd2
Rfe8 17. Nd5 Nxd5 18. cxd5 Bxd5 19. Bb5 (19. Bc4 Bd4+ 20. Kh1 Bxc4 21. Rxc4
Bxb2 22. Rb4 Be5 $11) 19... Re5 $1 {La clave y las negras no han perdido ni
una partdia desde esta posicion.}) 15. Qxa5 $1 Rxa5 16. cxd5 $1 $14 {Ahora las
blancas, con la pareja de alfiles y el caballo negro que aun no está en c5,
tienen un aventaja apreciable, ...!pero no consiguieron ganar!} Nd7 17. Rc7 Nc5
18. Rb1 (18. Rxe7 Bxb2 $13 {este es el encanto de la línea, con a5-a4, ahora
el flanco de dama negro es peligroso.}) 18... Bf6 19. b4 {Puede ser impaciente}
(19. g4 $1 {[%cal Gg4g5]} e6 20. dxe6 fxe6 21. Bh6 Re8 22. Kg2 $14) 19... axb3
20. axb3 Ra2 21. Bc4 {[%cal Gb3b4]} Rb8 22. b4 Na6 23. Bxa2 Nxc7 24. b5 Ra8 25.
Bc4 Ra1 26. Rxa1 Bxa1 $14 {Todo se centra en si este final se gana o no.} 27.
Kf2 (27. b6 $5 Na8 $1 $11 {[%csl Gb6][%cal Ga1c3,Gc3a5]} 28. Ba6 Nxb6 $11)
27... Bc3 28. f4 h5 29. Kf3 Kg7 30. g3 Na8 31. Bf1 Nc7 (31... Ba5 $5 $11 {
[%cal Ga5b6]}) 32. Bb6 Na8 33. Ba7 Nc7 34. Be3 Kf8 35. Bc4 Na8 36. Ke2 Ba5 37.
Bd4 Nb6 38. Bb3 Nd7 39. e5 Bb6 40. Bb2 dxe5 41. fxe5 Bc7 42. e6 Nc5 43. Bc2 b6
44. Kf3 f5 45. h3 Bd6 46. g4 hxg4+ 47. hxg4 fxg4+ 48. Kxg4 Ke8 49. Kg5 Nb7 50.
Kxg6 Bc5 51. Kg7 Nd6 {Parece una fortaleza inexpugnable.} 52. Bd3 Be3 53. Be5
Bc5 54. Bf4 Bf2 55. Bg5 Bd4+ 56. Kg8 Bc5 57. Bf4 Bf2 58. Bd2 Bd4 59. Bh6 Bf2
60. Bf4 Bc5 61. Bg5 Nb7 62. Bg6+ Kd8 63. Kf8 Bd6 64. Bc2 Nc5 65. Be3 Be5 66.
Bd1 Bd6 67. Be2 Be5 68. Bxc5 bxc5 69. b6 Bd6 70. Ba6 c4 1/2-1/2

[Event "Yerevan (ol) 67/221"]
[Site "?"]
[Date "1996.??.??"]
[Round "?"]
[White "Polgar, Ju"]
[Black "Antunes, A."]
[Result "0-1"]
[ECO "B36"]
[WhiteElo "2655"]
[BlackElo "2540"]
[Annotator "Antunes,A"]
[PlyCount "116"]
[EventDate "1996.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. f3 Nxd4 8.
Qxd4 Bg7 9. Be3 O-O 10. Qd2 Be6 11. Rc1 Qa5 12. Bd3 $5 Rfc8 13. b3 a6 14. Ne2
$146 (14. Na4 Qxd2+ 15. Kxd2 Nd7 16. f4 {- 15/348} (16. g4 Rab8 $132)) 14...
Qxd2+ 15. Kxd2 Nd7 $1 16. Nf4 Nc5 17. Be2 a5 18. Nd5 $6 (18. Nxe6 fxe6 19. Rc2
Na6 20. a3 Nc5 $132) 18... Bxd5 {Este es un caso de mal menor. Las blancas no
tienen ninguna ventaja.} 19. cxd5 $6 (19. exd5 {es necesaria para evitar el
desastre.} Bb2 20. Rb1 Ba3 $11 21. Kc2) 19... a4 $1 20. b4 $2 (20. Bxc5 dxc5
$15) 20... Nb3+ $1 $17 21. axb3 Rxc1 22. Rxc1 a3 23. Bb5 $1 (23. Bg5 Kf8 24.
Rc7 f6 25. Be3 a2 26. Bd4 f5 $19) (23. b5 a2 24. b6 Bb2 $1 25. Rd1 a1=Q 26.
Rxa1 Rxa1 27. Kc2 Ba3 $19) 23... a2 24. Kd3 a1=Q 25. Rxa1 Rxa1 {[R 9/g]} 26.
Bc6 Rb1 27. Kc4 Rb2 $1 28. Bxb7 Rc2+ 29. Kd3 (29. Kb5 Rxg2 $19) 29... Rc3+ 30.
Ke2 Rxb3 31. Bd2 Bc3 $1 $19 32. Bxc3 Rxc3 {[R 2/j]} 33. b5 e5 34. dxe6 fxe6 35.
h4 Kf7 36. g4 Ke7 $6 $138 37. Kf2 h6 38. f4 Rh3 39. e5 dxe5 $1 (39... d5 $2 40.
f5 gxf5 41. gxf5 exf5 42. Bxd5 Rxh4 43. b6 Rb4 44. b7 $11) 40. fxe5 Rc3 $1 (
40... Rxh4 $2 41. Kg3 g5 42. Bf3 h5 43. b6 hxg4 44. b7 Rh8 45. Kxg4 $11) 41. b6
Rb3 42. Be4 Rxb6 43. Bxg6 Rb5 44. Kf3 Rxe5 45. Kf4 Kf6 46. Bd3 Ra5 47. Be4 e5+
48. Ke3 Ra3+ 49. Bd3 Rb3 50. Ke2 Rb4 51. Kf3 Rf4+ 52. Kg3 Rd4 $1 53. Bh7 (53.
Bf5 h5 54. Bc8 Rd3+ 55. Kg2 hxg4 56. Bxg4 e4 $19) (53. Be2 Ra4 54. Kf3 Ra3+ 55.
Ke4 Rh3 56. g5+ hxg5 57. hxg5+ Kxg5 $19) 53... Ra4 54. Kf3 Ra3+ 55. Ke4 Rh3 56.
g5+ hxg5 57. hxg5+ Kxg5 58. Bf5 Ra3 0-1

[Event "Corus-B"]
[Site "Wijk aan Zee"]
[Date "2005.01.25"]
[Round "9"]
[White "Nielsen, Peter Heine"]
[Black "Ramirez Alvarez, Alejandro"]
[Result "1/2-1/2"]
[ECO "B37"]
[WhiteElo "2648"]
[BlackElo "2507"]
[PlyCount "108"]
[EventDate "2005.01.15"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "13"]
[Source "ChessBase"]
[SourceDate "2005.04.11"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. e4 Bg7 5. d4 cxd4 6. Nxd4 O-O 7. Be2 Nc6 8.
Nc2 b6 9. O-O Bb7 10. Bg5 d6 11. Qd2 Rc8 12. b3 a6 13. f3 Ne5 14. Rac1 Qc7 15.
Nd5 Bxd5 16. cxd5 $1 {[%csl Ga6] Sin caballo firme en c5, esta captura da una
gran ventaja posicional.} (16. exd5 {es algo menos clara y lo es por el
contrajuego típico.} b5 $5 17. cxb5 axb5 $13) 16... b5 17. Be3 $1 Qb7 18. Qa5
$1 {[%csl Ga6,Gc6][%cal Gc2b4]} e6 $5 {Las negras buscan una solución rapida.
Es comprensible en esta posición.} 19. dxe6 d5 20. exf7+ (20. Nb4 $1 dxe4 21.
Qxa6 {[%csl Gb7]} Qxa6 22. Nxa6 exf3 23. exf7+ Kxf7 24. Bxb5 $16) 20... Nxf7
21. Nb4 $16 dxe4 22. Qxa6 Qxa6 23. Nxa6 Nd5 24. Bc5 Bh6 25. fxe4 Bxc1 26. Rxc1
Rfe8 27. Bxb5 Rxe4 28. Bc4 Nf4 29. Rf1 Rc6 30. Bb5 Rf6 31. g3 Nd5 32. Rxf6 Nxf6
33. Bc4 Re1+ 34. Kg2 Ne4 35. a4 Nxc5 36. Nxc5 Kg7 37. a5 Nd6 38. Bd3 Ra1 39. b4
Kf6 40. a6 Ke5 41. Nb3 Ra2+ 42. Kh3 Nc8 43. Na5 Na7 44. Nb7 Kd4 45. Bf1 Rf2 46.
Bg2 Kc4 47. Nd6+ Kxb4 48. Bb7 Ra2 49. Ne4 Nb5 50. Nf6 h6 51. Ng8 h5 52. Ne7 g5
53. Nd5+ Kc5 54. Nf6 g4+ 1/2-1/2

[Event "Pamplona 15th"]
[Site "Pamplona"]
[Date "2005.12.23"]
[Round "1"]
[White "Izoria, Zviad"]
[Black "Tiviakov, Sergei"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2646"]
[BlackElo "2700"]
[Annotator "Roiz,M"]
[PlyCount "54"]
[EventDate "2005.12.23"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[EventCategory "16"]
[Source "ChessBase"]
[SourceDate "2006.04.04"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 {A tricky order
of move. Now 7.Be3?! is not good in view of 7...Ng4, so white cannot avoid the
following line.} 7. Be2 (7. Nc2 $5 {Nosotros jugariamos esta.}) (7. f3 Nxd4 8.
Qxd4 Bg7 9. Be3 O-O 10. Qd2 {Llegariamos a una posición típica.}) 7... Nxd4 8.
Qxd4 Bg7 {Here white has a large choice of theoretical continuations.} 9. O-O {
This move is less popular on the top level these days.} ({The most common
lines are:} 9. Bg5 O-O 10. Qd2) ({and} 9. Be3 O-O 10. Qd2) 9... O-O 10. Qe3 Be6
11. Bd2 {Restricting the mobility of Qd8, which is usually placed at a5 in the
Maroczy.} Qb6 {Black is ready to double his queen-side pawns.} (11... Nd7 12.
Rac1 Qb6 13. b3 {usually leads to the same position.}) 12. b3 ({As the
practise shows, black's problems are not that serious after} 12. Qxb6 axb6 {
-See comments to 1/2-1/2 Morozevich,A-Topalov,V/Wijk aan Zee 2001/CBM 081/
[Tsesarsky] (26)}) 12... Qxe3 13. Bxe3 Nd7 {Delivering the knight to c5 - this
is the standard manoevre in this system. Usually white cannot achieve much
without pushing it away by a2-a3 and b3-b4, but it's not so easy to make this
advance possible!} (13... Rfc8 14. Rac1 Kf8 15. f4 Bd7 16. Bf3 Bc6 17. e5 Ne8
18. Bxc6 Rxc6 19. exd6 Nxd6 20. Rfd1 a6 21. Nd5 $14 {1-0 Gelfand,B-Topalov,V/
Monaco 2002/CBM 087 ext (52)}) 14. Rac1 Nc5 15. f3 {In my opinion, this
natural prophylactic move is too slow!} ({A very importand game for
understanding this type of position was played by Boris Gelfand:} 15. Nd5 $1
Bxd5 (15... Nxe4 16. Nxe7+ Kh8 17. Bf3 $16) 16. exd5 a5 17. Rc2 $1 f5 18. g3
Be5 19. f4 Bf6 $6 20. Rb1 Rfc8 $6 21. g4 $1 $16 {1-0 Gelfand,B-Malisauskas,V/
Moscow 1989/TD (45)}) 15... Rfc8 16. Rfd1 $146 {This move looks logically, but
actually it is a loss of time!} ({I would prefer} 16. Nd5 Bxd5 (16... Kf8 $6
17. Rfd1 Rc6 18. Bg5 Re8 19. b4 Nd7 20. c5 dxc5 21. Bb5 $16 {1-0 Vaganian,
R-Nikolic,N/Haarlem 1993/EXT 98 (36)}) 17. exd5 $1 {with a small but permanent
advantage, like in Gelfand-Maliskauskas. (Roiz) Yo no veo la ventaja. De
hecho no veo la ventaja de esta estructura sin damas, pero tal vez deba
estudiarla más. La partida Gelfand - Malishauskas citada no la encuentro.} ({
after} 17. cxd5 $6 {black may equalize by:} Bb2 $1 18. Rc2 Ba3 $11 {[%csl Rc1]
[%cal Ya3c1,Ga7a5,Ga5a4] taking control of the 'c1' square and intending to
push the Pa7.}) 17... a5 18. g3 Bb2 19. Rc2 Ba3 20. Kg2 a4 21. Rb1 axb3 22.
axb3 Bb4 23. Bd1 Nd3 24. Re2 Ne1+ 25. Kf2 Nd3+ 26. Kg2 $11) 16... a5 17. Nd5 ({
White could wait with forcing matters, but after} 17. Kf1 Kf8 {it's not easy
to make progress, while Nc3-d5 may be also met by Rc8-c6, since the Pe7 is
protected.}) 17... Bxd5 18. cxd5 ({After} 18. exd5 Bb2 19. Rb1 Ba3 $11 {[%cal
Gc5a6,Ga3c5] black takes a full control of dark squares.(Roiz) Es curioso
este comentario comparado con el de la jugada anterior.}) 18... Bb2 $1 19. Rc2
Ba3 $11 {Parece que sin damas y con Caballo en c5, las negras no tienen
problemas en esta variante.} 20. Bb5 {There was no need to prevent 20...a5-a4.}
({Deserved attention} 20. Kf1 $5 {intending to meet} a4 (20... Na6 $1 {looks
like the best answer. In this case the advantage of Kg1-f1 becomes clear.}) {
with} 21. Rb1 axb3 22. axb3 Na6 23. Rxc8+ Rxc8 24. Ra1 $14) 20... Na6 {Black
is ready to double the pawns for the second time in this game!} 21. Rxc8+ ({
After} 21. Rc4 Rxc4 22. Bxc4 Bc5 23. Kf2 Bxe3+ 24. Kxe3 Nc5 $11 {black has no
problems.}) 21... Rxc8 22. Bxa6 bxa6 23. Kf1 ({Deserved attention:} 23. Kf2 $5
Bb4 ({after} 23... Rc2+ 24. Rd2 Rc1 25. Ke2 Kf8 (25... Bb4 26. Rb2 {[%cal
Ge2d3]}) 26. Kd3 {[%cal Gd2c2] the rook's exchange is unavoidable anyway.}) 24.
Rc1 Rxc1 25. Bxc1 a4 26. bxa4 $14 {and although the endgame should be drawn
white still has some practical winning chances.}) 23... f6 (23... a4 24. bxa4
Rc2 25. Rb1 $14 Bb2) 24. Ke2 $6 {This move is a serious inaccuracy which
allows black to exchange the queen-side pawns.} ({At the same time he could
still cause black some problems by direct play:} 24. Rd4 $1 {[%cal Gd4c4]} Rc2
(24... Bc1 $2 25. Bf2 $16 {[%cal Gd4c4]}) 25. Ra4 Rxa2 (25... Bb4 $6 26. a3 Bc5
27. Bxc5 Rxc5 28. Ke2 $14 {/+/- In this endgame black still has some
diffculties, since white's pieces are more active.}) 26. Bd4 $1 {black cannot
avoid the loss of his 'a' pawns. However, after} (26. Rxa5 Ra1+ 27. Ke2 Bb2 $11
) 26... Kf7 27. Rxa5 Rd2 $1 {it looks like black escapes in all the cases. For
instance,} 28. Bb6 (28. Rxa3 Rxd4 29. Rxa6 Rb4 30. Ra3 f5 $11) 28... Bb4 29.
Rxa6 Rd1+ 30. Kf2 Rd3 $11) 24... a4 25. Kd3 ({After} 25. bxa4 Rc4 26. a5 (26.
Rd4 Rc2+ 27. Rd2 Rc4 $11) 26... Bb4 {the draw is also unavoidable.}) 25... axb3
26. axb3 Rb8 {Now white also has some weakness.} 27. Rb1 Kf7 {White cannot
make any progress, so a draw was agreed.} 1/2-1/2

[Event "Pardubice"]
[Site "?"]
[Date "1994.??.??"]
[Round "2"]
[White "Khalifman, Alexander"]
[Black "Hracek, Z."]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "2645"]
[BlackElo "2530"]
[Annotator "Boensch"]
[PlyCount "140"]
[EventDate "1994.??.??"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Nf6 6. Nc3 d6 7. Be2 Bg7 8. Be3
O-O 9. O-O Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 Nd7 14. Be3 Nc5 15.
Rab1 Qb6 16. Rfc1 Rfc8 17. Rc2 Qd8 18. Bf1 Be5 (18... b6 19. a3 Rcb8 20. b4
axb4 21. axb4 Ne6 22. Nd5 Nf8 23. Qf2 $14) (18... h5 19. Nb5 $1 $14) 19. a3 (
19. Nd1 Qe8 20. Nf2 $14) 19... Qf8 20. Nd5 (20. b4 axb4 21. axb4 Na4 22. Ne2
$14) 20... Bxd5 21. exd5 $1 {Ahora no se puede parar b4 en buenas condiciones}
(21. cxd5 {No da nada} a4 $1 22. bxa4 (22. b4 Nb3 23. Qf2 Rxc2 24. Qxc2 Rc8 $11
) 22... Rxa4 $1 $11) (21. Qxd5 $5 {Es flexible y no estoy seguro que las
negras igualen}) 21... Qg7 (21... a4 22. b4 Nb3 23. Qf2 $14 {[%cal Gc4c5]}) 22.
b4 $1 axb4 23. axb4 Na4 (23... Nd7 24. f4 Bf6 25. c5 $16 {[%cal Gc5c6]}) 24.
Rb3 (24. c5 $1 $16) 24... b6 25. Ra3 Qf8 26. Bd4 (26. Rca2 Qe8 27. Qc2 b5 28.
c5 Nc3 (28... dxc5 29. bxc5 Bd6 $1 $17) 29. Rxa8 Rxa8 30. Rxa8 Qxa8 31. c6 Nxd5
32. c7 Qc8 $17) 26... Bxd4+ 27. Qxd4 Qg7 28. Qxg7+ Kxg7 29. Rca2 b5 30. c5 (30.
cxb5 Nb6 31. Ra6 (31. Rxa8 Rxa8 32. Rxa8 (32. Ra6 Rb8 $17) 32... Nxa8 33. Bc4
Nb6 34. Bb3 Kf6 35. Kf2 Ke5 36. Ke3 Nxd5+ 37. Bxd5 Kxd5 38. Kd3 Ke6 $19) 31...
Rab8 $15) 30... Rab8 (30... dxc5 $2 31. Bxb5 Nb6 32. Rxa8 Nxa8 33. Bc6 $18) 31.
c6 (31. Bxb5 Rxb5 32. Rxa4 dxc5 33. bxc5 Rbxc5 $15 (33... Rcxc5 34. Ra7 $11))
31... e6 32. Rxa4 $2 (32. Bxb5 $6 Rxb5 33. Rxa4 Rxd5 34. Ra6 Rb5 $15) (32. dxe6
fxe6 33. Rc2 (33. Bxb5 Rxb5 34. Rxa4 Rxc6 $11) 33... Rc7 34. Bxb5 Rxb5 35. Rxa4
Rb6 $11) 32... bxa4 33. Rxa4 Rc7 34. b5 Kf6 35. Ra6 exd5 36. Kf2 (36. f4 $5)
36... Ke5 37. Ke3 d4+ 38. Kd2 Kd5 39. Ra1 Kc5 40. Rc1+ Kb6 41. Kd3 Ra8 (41...
Kxb5 $4 42. Rb1+ $18) 42. Kxd4 Ra2 43. Rd1 Rca7 44. h3 f5 (44... Ra1 45. Rxa1
Rxa1 46. Bc4 Rd1+ $17) 45. Kd5 Ra1 46. Rxa1 Rxa1 47. Bc4 Rd1+ 48. Ke6 Kc7 $19
49. f4 (49. Bd5 Re1+ 50. Kf6 Re5 51. Bc4 f4 52. Kg7 d5 $19) (49. Kf6 d5 $19)
49... Rd4 50. Bd5 Rb4 $1 $19 (50... Rxf4 $6 51. b6+ Kxb6 52. Kxd6 (52. Kd7 Ra4)
52... Rf1 53. Ke6 Ra1 $17) 51. g4 Rxb5 (51... Rxf4 52. gxf5 gxf5 53. b6+ Kxb6
54. Kxd6 (54. Kd7 Ra4 $1) 54... Rf1 55. c7 Rc1 56. Be6 Rxc7 57. Bxf5 $15) 52.
gxf5 gxf5 53. h4 h6 54. Bf3 Ra5 55. Bd5 Rc5 56. Bf3 Rb5 57. Bd5 Ra5 58. Bf3 Ra3
59. Bd5 Rd3 60. Bg2 Rd2 61. Bh1 (61. Bd5 Rd4 $19) (61. Bf3 Rf2 $19) 61... Rh2
62. Bd5 Rxh4 63. Kxf5 h5 64. Be4 (64. Kg5 Rg4+ 65. Kxh5 (65. Kf5 Rg1 $19) 65...
Rxf4 66. Kg5 Rd4 67. Bf3 d5 $19) 64... Rh2 (64... Rg4 $2 65. Bf3 Rh4 66. Kg5
$44 Rh2) 65. Kg5 h4 66. f5 (66. Kg4 h3 (66... Rd2 67. f5 d5 68. Bf3 Kxc6 $19)
67. Kg3 (67. f5 Re2 68. Bf3 (68. Bd5 h2 69. f6 Rf2 70. Kg5 Rf1 $19) 68... h2
69. f6 Rf2 $19) 67... Re2 68. Bf3 (68. Kf3 Rxe4 $19) 68... Re3 69. Kf2 (69. f5
h2 $19) 69... Ra3 70. f5 h2 71. Bh1 Ra5 $19) 66... h3 67. f6 Rf2 68. Kg6 (68.
Bf5 Rxf5+ 69. Kxf5 h2 70. f7 h1=Q $19) 68... h2 69. f7 Rf1 70. Kg7 h1=Q (70...
h1=Q 71. Bxh1 Rg1+ $1 $19 (71... Rxh1 72. f8=Q Rg1+ 73. Kf7 Rf1+ $19) (71...
Rg1+ $1 72. Kh7 Rxh1+ 73. Kg7 Rf1 74. f8=Q Rxf8 75. Kxf8 d5 $19)) 0-1

[Event "Beograd"]
[Site "?"]
[Date "1969.??.??"]
[Round "?"]
[White "Polugaevsky, L."]
[Black "Ostojic, Pr"]
[Result "1-0"]
[ECO "B36"]
[PlyCount "65"]
[EventDate "1969.??.??"]

{8/329} 1. c4 g6 2. e4 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Nxd4 7. Qxd4
d6 8. Be3 Bg7 9. f3 O-O 10. Qd2 Be6 11. Rc1 Qa5 12. Nd5 (12. h4 Rac8 13. b3 Bd7
14. g4 (14. h5 Nxh5 15. g4 Ng3 16. Rh3 Bxc3 (16... Nxf1 17. Kxf1 f5 18. gxf5
gxf5 19. Rg3))) 12... Qxd2+ 13. Kxd2 Bxd5 14. cxd5 (14. exd5) 14... Rfc8 15.
Rxc8+ $1 (15. g3) 15... Rxc8 16. g3 $1 Rc7 17. Bh3 Nd7 18. Rc1 (18. Bxd7 Rxd7)
18... Rxc1 19. Kxc1 Nb6 (19... Ne5 20. Bxa7 Nd3+ 21. Kc2 Nxb2 22. Bc8 b5 23.
Ba6 $18) (19... Nc5 {PROFILAXIS DE ATAQUE} 20. Kc2 $1 $16 {Con idea b4} Kf8 21.
b4 Na6 22. Kb3 b6 23. a4 Nc7 24. a5 (24. Kc4) (24. Bd7 e5) 24... bxa5 25. bxa5
a6 26. Bb6 Nb5) 20. Kc2 (20. b3) 20... Kf8 21. b3 Ke8 22. a4 $1 Kd8 23. a5 Nc8
24. Bxc8 Kxc8 25. Bxa7 e6 26. Kd3 exd5 27. exd5 Bb2 28. Kc4 Bc1 29. Kb5 Kc7 30.
Bb6+ Kd7 31. a6 bxa6+ 32. Kxa6 Bd2 33. Ba5 1-0