APRENDE ESTRATEGIA LÍNEAS ABIERTAS ATAQUE KERES

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[Event "Minsk Sokolsky Memorial-07"] [Site "Minsk"] [Date "1976.12.??"] [Round "?"] [White "Savon, Vladimir A"] [Black "Kapengut, Albert Z"] [Result "1-0"] [ECO "B81"] [WhiteElo "2545"] [BlackElo "2460"] [Annotator "M.I J. L. Boudy"] [PlyCount "59"] [EventDate "1976.12.13"] [EventType "tourn"] [EventRounds "15"] [EventCountry "URS"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 14,59,108,90,135,134,181,175,205,188,185,172,177,165,178,151,210,205, 221,201,242,217,239,160,200,181,203,154,162,148,130,118,123,122,209,189,216, 119,265,272,380,283,322,267,417,285,12800,752]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nde5 {B81: Defensa Siciliana (Ataque Keres).} (8... a6 $142) 9. Be2 $16 h6 $146 (9... Be7 $16) ({Predecesor: } 9... Be7 10. f4 Ng6 11. Qd2 a6 12. O-O-O Bd7 13. h4 h5 14. gxh6 gxh6 15. h5 Nf8 16. Rhg1 {1-0 (26) Franzen,J-Morales Gomez,S ICCF corr 1973}) 10. gxh6 $18 g5 {Las blancas están claramente mejor.} 11. Qd2 Nxd4 12. Qxd4 (12. Bxd4 $6 Rxh6 13. O-O-O Bd7 $16) 12... Rxh6 13. O-O-O Bd7 14. Nb5 Bxb5 (14... Bc6 $16 { era necesario.}) 15. Bxb5+ Nc6 16. Qa4 Kd7 17. e5 Rh4 18. c4 a6 19. Bxc6+ bxc6 20. Rxd6+ Bxd6 21. Rd1 {[%mdl 64] Clavada} Qc7 22. Rxd6+ Ke8 23. Bxg5 Rxh2 ( 23... Re4 $16) 24. c5 {Esperando por Af6.} Rb8 {[#]} (24... Rxf2 25. Qh4 Rf1+ 26. Kc2 Rh1 27. Qxh1 Qxd6 28. exd6 Kd7 29. Qf3) 25. Bf6 (25. b3 $1 $18) 25... Kf8 ({No vaya por} 25... Rxf2 $2 26. Qg4 $18) (25... Rh1+ $16 26. Kc2 Rh7) 26. b3 {Y ahora Dg4 ganaría.} a5 {con la intención de ...Tb4.} ({Es inferior} 26... Rxf2 27. Qh4 Rf1+ 28. Kb2 Rf2+ 29. Qxf2 Ke8 30. Qg3 Qe7 31. Bxe7 Kxe7 32. Qh4+ f6 33. Qxf6+ {[%mdl 64] Ataque doble} Ke8 34. Rxe6+ Kd7 35. Qf7+ Kd8 36. Re8#) 27. Qg4 {Las blancas amenazan Dg7+ y mate.} Rh7 28. Rd1 {Amenazando mate con Tg1.} Qa7 29. Qd4 {Dd8+! sería matador ahora.} ({Menos fuerte es} 29. Rg1 Qxc5+ 30. Kb1 Ke8 $18) 29... Rh6 $2 {[#]} (29... Qc7 30. Qg4 Rb5) 30. Qd8+ $1 { [%mdl 576]} 1-0 [Event "Interzonal-11b"] [Site "Rio de Janeiro"] [Date "1979.10.12"] [Round "15"] [White "Kagan, Shimon"] [Black "Petrosian, Tigran V"] [Result "0-1"] [ECO "B81"] [WhiteElo "2445"] [BlackElo "2610"] [Annotator "M.I J. L. Boudy"] [PlyCount "60"] [EventDate "1979.09.23"] [EventType "tourn"] [EventRounds "19"] [EventCountry "BRA"] [EventCategory "11"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 18,60,96,77,134,116,131,127,162,142,161,130,151,66,62,55,78,78,116,102, 72,38,53,31,61,-83,-38,-104,-181,-99,-90,-104,-94,-259,-200,-310,-293,-589, -438,-980,-350,-572,-422,-516,-380]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Be7 10. Rg1 Na5 $146 {B81: Defensa Siciliana (Ataque Keres).} ({Mejor es} 10... Qc7) ({Predecesor:} 10... O-O 11. h5 Nxd4 12. Qxd4 Ne5 13. Be2 Nc6 14. Qd2 b5 15. f4 Qa5 16. Bf3 Bb7 17. Ne2 Rac8 18. c3 {1-0 (46) Matulovic,M (2525)-Vilela de Acuna,J (2435) Sombor 1978}) 11. Qd2 $16 Qc7 12. O-O-O g6 {Las blancas están mejor.} 13. f4 b5 14. f5 Ne5 15. Qf2 (15. b3 $16) 15... Nac4 $14 16. Bxc4 Nxc4 17. Rgf1 O-O 18. f6 Bd8 19. h5 b4 $1 {[%cal Rb4c3]} 20. Nce2 e5 {Esperando por ...Da5.} 21. Nb3 { [#]} (21. Rh1 $1 $14) 21... Bg4 $1 $17 {...Tc8 es la amenaza fuerte.} 22. hxg6 (22. Rh1 $15) 22... fxg6 23. Kb1 (23. Rh1 $19) 23... Rc8 $36 {[%mdl 2048] Las negras realmente están empujando.} ({Rechace} 23... Nxe3 $6 24. Qxe3 Qc6 25. Nbc1 $11) 24. Rc1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 25. c3 $2 {[#]} (25. Nd2 $17 {podría funcionar mejor.}) 25... Qb7 $1 $19 {[%cal Rb7e4]} 26. Ng3 (26. Nd2 $142) 26... a4 {Las blancas deben ahora evitar ...bxc3.} 27. Na1 $2 (27. Nd2 { era la única opción.} Nxb2 28. c4) 27... Be6 28. cxb4 Qxb4 $2 (28... Nxe3 29. Qxe3 Rxc1+ 30. Rxc1 h6) 29. b3 $2 (29. Rc3) 29... axb3 30. Nxb3 Ra8 0-1 [Event "Vrbas"] [Site "Vrbas"] [Date "1977.05.07"] [Round "6"] [White "Matulovic, Milan"] [Black "Sax, Gyula"] [Result "0-1"] [ECO "B81"] [WhiteElo "2510"] [BlackElo "2565"] [Annotator "M.I J. L. Boudy"] [PlyCount "80"] [EventDate "1977.04.30"] [EventType "tourn"] [EventRounds "11"] [EventCountry "YUG"] [EventCategory "11"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 16,80,29,-7,50,30,35,13,79,69,82,32,44,16,37,25,29,8,40,20,41,29,41,30, 50,35,48,18,33,-30,-17,-32,-26,-15,-19,-30,-95,-69,-82,-127,-124,-180,-126, -133,-106,-128,-117,-109,-154,-222,-216,-256,-229,-268,-245,-283,-276,-348, -477,-624,-553,-3343,-758,-1646,-1262,-2190,-1350]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. Bg2 Nc6 8. h3 Bd7 9. Be3 a6 {B81: Defensa Siciliana (Ataque Keres).} ({Las negras deberían intentar} 9... Ne5 $11) 10. Qe2 Rc8 11. f4 Qa5 $146 (11... Na5 $11) ({Predecesor:} 11... Nxd4 12. Bxd4 Qa5 13. e5 dxe5 14. Qxe5 Qb4 15. a3 Qd6 16. Bxb7 Rb8 17. Bxa6 Bc6 18. O-O Qd8 19. Bb5 Bxb5 20. Nxb5 Rc8 21. Rac1 Be7 22. Na7 {1-0 (22) Byrne,R-Estevez Morales,G Leningrad 1973}) 12. Nb3 $16 Qc7 $1 13. O-O (13. O-O-O $16) 13... Be7 $14 14. Qf2 {Amenazando Tad1.} O-O 15. Bb6 Qb8 16. a4 Be8 17. a5 Nd7 18. Be3 Bd8 19. Rfd1 b5 20. axb6 Nxb6 21. Bf1 (21. Rxa6 Nc4 $17) 21... Nb4 22. e5 (22. Na5 $14) 22... N6d5 $11 23. Ba7 Qb7 $1 24. Bd4 dxe5 25. fxe5 f5 26. Nc5 Qe7 { Esperando por ...fxg4.} 27. Nxd5 (27. Bxa6 $2 Nxa6 28. Nxa6 fxg4 $19) (27. g5 $142) 27... Nxd5 $17 28. Bxa6 (28. g5 $17) 28... Rc6 (28... fxg4 $19 29. Qxf8+ (29. Bxc8 $2 Rxf2 30. Bxf2 Nf4 $19) 29... Qxf8 30. Bxc8 Nf4 31. Bxe6+ Nxe6 32. Nxe6 Qf3) 29. g5 Bb6 {[%cal Rc6c5]} (29... Qxg5+ $6 30. Kh2 $11) 30. Nb3 Qxg5+ 31. Kh2 Ne3 (31... f4 $142 32. Rg1 Bxd4 33. Nxd4 Qxe5 34. Nxc6 Bxc6) 32. Bxb6 ( 32. Rd2 $17 {era necesario.}) 32... Rxb6 $19 33. Rg1 {[#]} Ng4+ $1 {[%mdl 512]} 34. Rxg4 ({No} 34. hxg4 $2 fxg4 35. Kg2 Bc6+ 36. Kf1 Rxa6 $19) 34... fxg4 $40 { [%mdl 128] Las negras se tiran a matar.} 35. Qxb6 Qf4+ 36. Kg1 {Las blancas quieren jugar Ab7.} Qg3+ {[%mdl 64] Ataque doble} ({Peor es} 36... Qxe5 37. Bf1 $11 (37. hxg4 {recibe mate.} Qg3+ {[%mdl 64] Ataque doble} 38. Kh1 Rf2 39. Qxe6+ Kf8 40. Qxe8+ Kxe8 41. Bb5+ Kd8 42. Rd1+ Kc8 43. Ba6+ Kc7 44. Rd7+ { [%mdl 64] Señuelo} Kxd7 45. Nc5+ Ke7 46. Ne4 Qh2#)) 37. Kh1 {Las negras están ganado claramente.} Qf3+ 38. Kg1 Bc6 39. Qxc6 Qxc6 40. hxg4 Qxc2 { [%mdl 64]} 0-1 [Event "Interpolis-04"] [Site "Tilburg"] [Date "1980.09.29"] [Round "9"] [White "Karpov, Anatoly"] [Black "Spassky, Boris Vasilievich"] [Result "1-0"] [ECO "B81"] [WhiteElo "2725"] [BlackElo "2615"] [Annotator "M.I J. L. Boudy"] [PlyCount "69"] [EventDate "1980.09.19"] [EventType "tourn"] [EventRounds "11"] [EventCountry "NED"] [EventCategory "15"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 22,69,46,35,40,24,83,58,88,60,57,50,67,28,56,0,24,0,126,99,136,132,149, 119,186,157,166,170,60,192,212,203,244,231,255,229,253,211,269,217,318,268,509, 407,621,323,1472,911,1433,381]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. h4 Nc6 8. Rg1 d5 9. Bb5 Bd7 10. exd5 Nxd5 11. Nxd5 exd5 12. Be3 $146 ({Predecesor:} 12. Qe2+ Be7 13. Nf5 Bxf5 14. gxf5 Kf8 15. c3 Bf6 16. Be3 d4 17. O-O-O Qa5 18. Bxc6 Qxa2 19. Bxd4 Bxd4 {1-0 (49) Liberzon,V (2555) -Formanek,E (2410) Beersheba 1978}) 12... Be7 {B81: Defensa Siciliana (Ataque Keres).} 13. Qd2 Bxh4 {[#]} (13... O-O $11 14. Nf5 Bxh4) 14. O-O-O $1 $16 Bf6 { Las blancas están ligeramente mejor.} 15. Nf5 Bxf5 $1 16. gxf5 a6 17. Bxc6+ bxc6 18. Bc5 Rb8 19. b4 {[%cal Bb2b4,Bb4c5][%mdl 32]} Rb5 (19... Kd7 $1 $11 { permanece igual.}) 20. Rge1+ Kd7 21. c4 $1 $36 {[%cal Rc4b5][%mdl 2048] Mantienen a Las negras ocupadas.} Rxc5 22. bxc5 Bg5 (22... Qb8 $16) 23. f4 $18 Qf6 {Amenazan ganar con ...Da1+.} 24. cxd5 ({No tome} 24. fxg5 $2 Qa1+ 25. Kc2 Qxa2+ 26. Kc1 Qa1+ 27. Kc2 Qa4+ 28. Kc1 Rb8 $19) 24... Qa1+ 25. Kc2 {dxc6+ sería matador ahora.} Qxa2+ 26. Kd3 Qxd2+ 27. Rxd2 Bxf4 {[%mdl 4096] Final RTT-RTA} 28. Ra2 {Las negras deben ahora evitar d6.} cxd5 29. Rxa6 h5 30. Kd4 h4 (30... Bg3 $142 31. Kxd5 Bxe1) 31. Kxd5 {Con la intención de c6+ y mate.} Rb8 $2 (31... Rd8 32. Ra7+ Bc7 33. c6+ Kc8+ 34. Kc5 Rd2 35. Ra8+ Bb8 36. Re8+ Kc7 37. Re7+ Kd8) 32. f6 gxf6 33. Rxf6 {[%mdl 64] [#] Ataque doble} Bg3 $2 ( 33... Rd8 34. Rxf4 Kc7+ 35. Kc4 Rd7 36. Rxh4 Rd2 37. Re7+ Rd7 38. Rxd7+ Kxd7) 34. Rxf7+ Kd8 35. Rf8+ $2 (35. Re6 Rb5 36. Kc6 Rxc5+ 37. Kxc5 Bc7 38. Kc6 Kc8 39. Re8+ Bd8 40. Rc7+ Kb8 41. Rxd8#) 1-0 [Event "Baden-Baden"] [Site "Baden-Baden"] [Date "1988.??.??"] [Round "?"] [White "Tseshkovsky, Vitaly"] [Black "Suba, Mihai"] [Result "1-0"] [ECO "B81"] [WhiteElo "2505"] [BlackElo "2535"] [Annotator "M.I J. L. Boudy"] [PlyCount "74"] [EventDate "1988.07.??"] [EventType "tourn"] [EventRounds "14"] [EventCountry "GER"] [EventCategory "9"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 22,74,80,64,69,55,66,48,67,11,25,-3,19,3,37,46,35,25,53,43,106,90,103, 28,101,42,49,40,57,45,116,104,117,101,125,29,801,267,1680,1154,767,1633,12800, 937,12800,261,12800,307,957,243,703,425,824,625,1302]} 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 e6 6. g4 e5 7. Bb5+ Bd7 8. Bxd7+ Qxd7 9. Nf5 h5 10. gxh5 Nxh5 11. Nd5 g6 12. Ng3 $1 {[%cal Rg3h5] apuntando a Cxh5.} Be7 {B81: Defensa Siciliana (Ataque Keres).} 13. Be3 $146 ({Predecesor:} 13. Qf3 Na6 14. Be3 Nc7 15. Nxc7+ Qxc7 16. O-O-O Rc8 17. Rd2 Qc4 18. Kb1 b6 19. Qd1 Qc6 20. f3 Nxg3 21. hxg3 Rxh1 22. Qxh1 {1/2-1/2 (37) Gusakov,V-Overveld,R Finland 1987}) 13... Na6 14. Qd3 Nc7 {Las blancas están ligeramente mejor.} 15. Nxc7+ ({ Mejor es} 15. Nxe7 $14 Kxe7 16. O-O-O) 15... Qxc7 $11 16. O-O-O Rc8 17. Kb1 a6 18. f3 Qc4 19. Qd2 $1 Rc6 20. Ne2 Qe6 (20... Bd8 $14) 21. h4 $16 Bd8 22. f4 ( 22. a3 $16) 22... Bb6 (22... Be7 $11) 23. fxe5 (23. Bxb6 $16 Rxb6 24. Rhf1) 23... Bxe3 $14 24. Qxe3 {Cd4 es la amenaza fuerte.} dxe5 25. Nc3 Rc8 (25... Kf8 $14) 26. Nd5 $16 Kf8 27. Qg5 Rc4 28. Ne7 $40 {[%mdl 128] Las blancas atacan.} ( {Las blancas deberían intentar} 28. Rhf1 $16) 28... Rc7 $2 {[%mdl 8192]} ( 28... Rd4 $11 29. c3 Rd6) 29. Rd8+ $18 Kg7 30. Rxh8 {Con la intención de Dh6+ y mate.} Ng3 31. Qh6+ Kf6 32. Qg5+ Kg7 33. Qh6+ Kf6 34. Rb8 $2 (34. Ng8#) 34... Qc4 $2 (34... Qxe7 35. Qg5+ {[%mdl 64] Ataque doble} Kg7 36. Qxg3 Rc6) 35. Qh8+ $2 (35. Nd5+ Ke6 36. Re8+ Kd7 {[#]} 37. Rd8+ $1 {[%mdl 512]} Kc6 38. Qg5 $1 { [%mdl 512]}) 35... Kxe7 $2 (35... Ke6 36. Nc6 (36. Nd5 $2 {recibe mate.} Qxc2+ 37. Ka1 Qc1+ {[%mdl 64] Retaguardia} 38. Rxc1 Rxc1#) 36... Qxc6 37. Re8+ Re7 38. Rxe7+ {[%mdl 64] Pieza sobrecargada} Kxe7 39. Qxe5+ {[%mdl 64] Ataque doble } Qe6) 36. Re8+ Kd7 37. Rd1+ Kc6 1-0 [Event "Buenos Aires Clarin op"] [Site "Buenos Aires"] [Date "1995.??.??"] [Round "9"] [White "Spangenberg, Hugo"] [Black "Panno, Oscar"] [Result "0-1"] [ECO "B81"] [WhiteElo "2500"] [BlackElo "2530"] [Annotator "M.I J. L. Boudy"] [PlyCount "114"] [EventDate "1995.05.??"] [EventType "swiss"] [EventRounds "9"] [EventCountry "ARG"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 19,114,39,41,6,80,66,75,94,-75,-37,-27,-78,14,-85,-24,-43,-27,-140,-115, -142,-35,-161,-146,-152,-134,-139,-108,-151,-134,-149,-115,-131,-105,-128,-94, -146,-97,-168,-104,-213,-203,-163,-209,-241,-217,-250,-177,-257,-193,-221,-202, -351,-293,-350,-310,-563,-971,-726,-462,-631,-492,-644,-459,-578,-409,-553, -389,-615,-454,-350,-387,-397,-350,-540,-352,-555,-377,-501,-286,-597,-417, -744,-495,-812,-440,-867,-897,-1090,-620,-2275,-1785,-2257,-1404,-1145,-1458, -2797,-12800]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 e5 7. Bb5+ Bd7 8. Bxd7+ Qxd7 9. Nf5 h5 10. Bg5 Nh7 $1 {[%cal Rh7g5]} 11. Bh4 $146 { B81: Defensa Siciliana (Ataque Keres).} ({Predecesor:} 11. Bd2 hxg4 12. Qxg4 g6 13. Ne3 Qxg4 14. Nxg4 Nc6 15. O-O-O O-O-O 16. h4 f5 17. Nh6 Bxh6 18. Bxh6 fxe4 19. Rhg1 Rhg8 20. Nxe4 Nd4 21. Kb1 d5 22. Nc3 Nf3 23. Rh1 Nf6 24. Bg5 Nxg5 25. hxg5 d4 26. gxf6 dxc3 27. bxc3 {1/2-1/2 (27) Ljubojevic,L (2580)-Polgar,J (2630) Buenos Aires 1994}) 11... hxg4 (11... g6 $11) 12. Nd5 $16 Nc6 13. Qxg4 { Las blancas están mejor.} g6 14. Nfe3 Qxg4 $1 15. Nxg4 Kd7 (15... f5 $17 16. exf5 gxf5) 16. Nge3 (16. Bf6 $11 Nxf6 17. Ngxf6+ Ke6 18. c3) 16... Rc8 (16... Nd4 $17 {Amenazan ganar con ...Cf3+.} 17. Bg3 Nf3+ 18. Ke2 Nd4+ 19. Kd3 Bg7) 17. c3 $11 Be7 18. Bxe7 (18. Nxe7 $11 {mantiene el equilibrio.} Nxe7 19. O-O-O) 18... Nxe7 $17 19. Ke2 {[#]} Ng5 (19... Nxd5 $1 $17 20. Nxd5 Ng5 21. Nf6+ Ke6) 20. f3 (20. Nf6+ $1 $15 Ke6 21. h4) 20... Rh3 $19 21. Raf1 Rch8 22. Rf2 R8h4 23. Nxe7 (23. Nf6+ $142 Ke6 24. Ne8) 23... Kxe7 $17 24. Rg1 f6 25. Rgg2 Kf7 26. Nd5 Rh5 27. Ne3 (27. a4 $142) 27... Ke6 (27... Ne6 $142 {...Cf4+ es la amenaza fuerte.} 28. Nd5 R5h4) 28. Nf1 {[#]} (28. Nd5 $17) 28... Rh7 (28... R3h4 $1 $19 {Las blancas deben ahora evitar ...Ch3.} 29. Kd1 d5 30. exd5+ Kxd5 31. Rd2+ Ke6 ) 29. Ng3 (29. Ne3 $17) 29... R3h4 $19 30. Ke3 Nh3 (30... d5 $142 31. exd5+ Kxd5 32. Rd2+ Ke6) 31. Rd2 Nf4 32. Rgf2 f5 33. Nf1 (33. Ne2 $142) 33... Rh3 34. c4 Rc7 35. exf5+ (35. Rc2 $142) 35... gxf5 36. Rc2 d5 37. b3 $2 (37. cxd5+ Nxd5+ 38. Kd2) 37... d4+ 38. Kd2 Rh4 39. Ng3 Nh3 40. Rf1 Rch7 41. Kd1 Nf4 42. Rff2 Nd3 43. Rfe2 (43. Rg2 $142) 43... a5 44. Rcd2 Nc5 45. Rf2 b6 46. Ne2 d3 47. Nc3 e4 48. fxe4 fxe4 {Amenazando con fuerza ...e3.} 49. Nd5 $2 (49. Rf8) 49... Ke5 50. Ne3 (50. Rf8 $142) 50... Rh3 {Las negras están ganado claramente.} 51. Ng4+ Kd4 52. Rf4 Kc3 53. Nf2 Rxh2 54. Kc1 {[#]} Rxf2 $1 { [%mdl 512]} 55. Rdxf2 e3 56. Rf1 e2 {( -> ...d2+)} 57. R4f3 {[#]} Rh3 $1 { [%mdl 512]} 0-1 [Event "October Revolution 60years"] [Site "Leningrad"] [Date "1977.07.11"] [Round "13"] [White "Smyslov, Vassily V"] [Black "Vogt, Lothar"] [Result "1-0"] [ECO "B81"] [WhiteElo "2595"] [BlackElo "2495"] [Annotator "M.I J. L. Boudy"] [PlyCount "80"] [EventDate "1977.06.25"] [EventType "tourn"] [EventRounds "17"] [EventCountry "URS"] [EventCategory "13"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 15,80,69,74,35,42,11,42,13,57,40,53,46,54,40,70,32,51,23,87,16,16,-30,0, -47,26,25,40,17,108,70,50,86,369,352,395,353,416,362,675,479,711,382,701,297, 563,434,641,544,682,509,665,370,549,266,348,241,335,580,557,440,479,816,1191, 652,1298,638,1306]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 a6 7. g5 Nfd7 8. Be3 b5 9. a4 {B81: Defensa Siciliana (Ataque Keres).} b4 10. Na2 Bb7 11. Bg2 {Las blancas están ligeramente mejor.} Nc5 (11... Be7 $11) 12. Nxb4 $14 Nxe4 $146 {Con la idea de ...Da5.} ({Predecesor:} 12... Bxe4 13. Bxe4 Nxe4 14. Qg4 d5 15. Nd3 Be7 16. h4 Qc8 17. O-O Nc6 18. Rac1 Nd6 19. Nxc6 Qxc6 { 1/2-1/2 (51) Heinrich,P-Kaufman,L Las Vegas 1974}) 13. Qg4 {Y ahora Cxe6 ganaría.} d5 14. Nd3 Be7 {[%cal Re4g5]} 15. h4 Nd7 16. O-O O-O {[#]} (16... Rc8 $11) 17. Rfd1 (17. c4 $1 $16) 17... Rc8 $11 18. c3 (18. Rac1 $142) 18... Re8 19. a5 (19. Bf4 $11) 19... Nd6 ({Las negras deberían jugar} 19... Bd6 $15) 20. f4 Nc4 21. Bf2 Nxa5 (21... Nc5 $11) 22. h5 $16 Nc6 23. g6 {Esperando por gxf7+.} Bf6 $2 {[%mdl 8192]} (23... Nxd4 $16 24. gxf7+ (24. Bxd4 Bf6 $11) 24... Kxf7 25. cxd4 (25. Bxd4 Bf6 $11) 25... Qb6) 24. gxf7+ $18 Kxf7 {[#]} 25. Nxe6 $1 {[%mdl 576] Eliminación del defensor} Rxe6 26. Bxd5 {[%mdl 64] Clavada} Qe7 {con la intención de ...Cd8.} 27. f5 {[%mdl 64] Clavada} Nde5 (27... Nce5 $142 28. fxe6+ Kf8 29. exd7 Nxg4 30. dxc8=Q+ (30. Bxb7 Qxd7 31. Bxc8 Qxc8 $15) 30... Bxc8) 28. Qe4 Kg8 $2 (28... Nd4 29. fxe6+ Kg8 30. Bxb7 Ndf3+ 31. Kf1 Ng5) 29. Nc5 (29. Bxe6+ $142 Nf7 30. Nc5) 29... Kh8 $2 (29... Nf3+ 30. Qxf3 Ne5 31. Bxe6+ Qxe6 32. Qxb7 Qxf5 33. Qd5+ Kh8 34. Rxa6 h6) 30. Bxe6 Rb8 (30... Nd8 $142 31. Nxb7 Nxe6 32. fxe6 Qxe6) 31. Nxb7 Qxb7 32. b4 h6 33. Kg2 Re8 34. Bg3 (34. Rd6 $142) 34... Nf7 35. Bf4 {Amenazan ganar con Dd5.} Nfd8 36. Rd6 $2 (36. Rd3) 36... Bxc3 {Las blancas están ganado claramente.} 37. Rc1 Bxb4 38. Rdxc6 (38. Rd7 $142 Qxd7 39. Bxd7 Rxe4 40. Bc7 Re2+ 41. Kg3 Re3+ 42. Kg2) 38... Nxc6 39. Qxc6 Qe7 40. Qd7 Qf8 1-0 [Event "Jakarta International"] [Site "Jakarta"] [Date "1983.11.22"] [Round "9"] [White "Tarjan, James Edward"] [Black "Hulak, Krunoslav"] [Result "0-1"] [ECO "B81"] [WhiteElo "2535"] [BlackElo "2515"] [Annotator "M.I J. L. Boudy"] [PlyCount "110"] [EventDate "1983.11.10"] [EventType "tourn"] [EventRounds "21"] [EventCountry "INA"] [EventCategory "11"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 16,110,97,27,101,107,101,91,121,109,100,123,117,112,142,125,141,127,171, 101,110,103,119,111,116,26,46,-23,17,20,87,-74,-52,-84,-70,-91,-82,-89,-80,-96, -73,-90,-86,-100,-90,-95,-70,-118,-94,-132,-114,-161,-149,-187,-157,-171,-155, -184,-164,-197,-177,-220,-175,-218,-202,-219,-201,-233,-206,-224,-200,-256, -238,-251,-230,-249,-211,-223,-207,-248,-242,-247,-216,-247,-156,-281,-251, -290,-179,-395,-312,-450,-421,-706,-577,-5623,-2031]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 a6 7. g5 Nfd7 8. Be3 Nc6 9. f4 (9. Qd2 $16) 9... Be7 {B81: Defensa Siciliana (Ataque Keres).} (9... h6 $1 $11) 10. Qd2 $146 ({Predecesor:} 10. h4 h6 11. Qf3 Nxd4 12. Bxd4 hxg5 13. hxg5 Rxh1 14. Qxh1 e5 15. Bf2 exf4 16. O-O-O Bxg5 17. Qh8+ Nf8 18. Nd5 {1/2-1/2 (55) Beliavsky,A (2555)-Vogt,L (2495) Leningrad 1977}) 10... Nxd4 11. Bxd4 ({No juegue} 11. Qxd4 e5 $14) 11... e5 {Las blancas están mejor.} 12. Be3 exf4 13. Bxf4 Ne5 { Amenazan ganar con ...Cf3+.} 14. O-O-O Be6 15. h4 Qa5 16. a3 Rc8 17. Nd5 (17. Kb1 $18) 17... Qxd2+ $16 18. Rxd2 h6 19. gxh6 gxh6 20. Bh3 (20. Be2 $16) 20... Rc4 $11 21. Bf5 (21. Nxe7 $14 Kxe7 22. Bg2) 21... Nf3 $1 22. Rd3 Nd4 {[#] ... Axd5 es la amenaza fuerte.} 23. Bxe6 $2 (23. b3 $1 $16 {[%cal Rb3c4] mantiene la presión.} Nxb3+ 24. Rxb3 Bxd5 {[%mdl 64] Clavada} 25. Bxd6 Rxc2+ 26. Kxc2 Bxb3+ 27. Kxb3 Bxd6 28. Rd1) 23... fxe6 $17 24. Ne3 Ne2+ {[%mdl 64] Ataque a la descubierta} 25. Kd2 Nxf4 26. Nxc4 {Esperando por Tc3.} Nxd3 27. Kxd3 { [%mdl 4096] Final RTA-RTC} h5 28. Na5 b6 29. Nc6 Rg8 30. Nxe7 Kxe7 {RT-RT} 31. Rh3 (31. a4 $15) 31... Rg4 32. c4 Kd7 33. b4 {[#]} (33. Rf3 $17) 33... Kc6 $1 $19 34. Ke3 b5 35. cxb5+ axb5 36. Rh2 Kd7 37. Kf3 Ke7 38. Rc2 (38. Ra2 $142) 38... Rxh4 39. Rc7+ (39. e5 {era necesario.}) 39... Kf6 40. Rb7 Rh3+ 41. Kf2 Rxa3 42. Rxb5 h4 43. e5+ dxe5 44. Rb8 Rb3 45. b5 {Si Las blancas pueden ahora jugar b6 y se consolidan un poco.} Kf5 46. b6 {y la idea b7 deja a Las blancas con esperanza.} Ke4 47. b7 Rb2+ 48. Kf1 {Ahora Th8 y Las blancas aguantan.} Ke3 49. Rh8 Rb1+ ({No capture} 49... Rxb7 50. Rxh4 Rb1+ 51. Kg2 $19) 50. Kg2 Rxb7 51. Rxh4 e4 52. Kf1 $2 (52. Rh8) 52... Kd3 53. Rh8 Rb1+ {Las negras están ganado claramente.} 54. Kg2 e3 {( -> ...e2)} 55. Rd8+ Ke4 (55... Ke2 $142 56. Rd6 e5) 0-1 [Event "Bugojno"] [Site "Bugojno"] [Date "1978.03.01"] [Round "4"] [White "Byrne, Robert Eugene"] [Black "Spassky, Boris Vasilievich"] [Result "0-1"] [ECO "B81"] [WhiteElo "2550"] [BlackElo "2630"] [Annotator "M.I J. L. Boudy"] [PlyCount "82"] [EventDate "1978.02.27"] [EventType "tourn"] [EventRounds "15"] [EventCountry "YUG"] [EventCategory "14"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 18,82,115,102,117,107,159,148,167,155,185,173,202,171,193,139,161,90, 100,50,62,45,68,44,54,37,41,16,31,-39,-22,-75,38,18,32,16,59,27,76,72,144,114, 158,43,51,38,50,-20,32,-167,-149,-166,-157,-206,-183,-243,-197,-290,-259,-416, -341,-1208,-533,-1156,-565,-1159,-456]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Be7 7. g5 Nfd7 8. Rg1 Nc6 9. Be3 O-O 10. Rg3 $146 ({ Predecesor:} 10. h4 Re8 11. h5 Nf8 12. Qd2 e5 13. Nb3 Be6 14. O-O-O a5 15. Bb5 g6 16. Nd5 a4 17. Na1 Bxd5 18. exd5 {0-1 (42) Matulovic,M-Naranja,R Palma de Mallorca 1970}) 10... a6 {B81: Defensa Siciliana (Ataque Keres).} 11. Qh5 Re8 ( 11... g6 $142 12. Qh6 Re8) 12. O-O-O $1 $16 (12. Nxc6 $6 bxc6 13. Rh3 Nf8 $11) 12... g6 {Las blancas están claramente mejor.} 13. Qh4 Bf8 14. f4 (14. Nxc6 $6 bxc6 15. Be2 Rb8 $14) 14... h6 15. f5 Nde5 16. f6 (16. fxg6 $18 fxg6 17. Nxc6 bxc6 18. Bf4) 16... Bd7 17. gxh6 (17. Kb1 $18) 17... Kh7 18. Nce2 ({Las blancas deberían jugar} 18. Kb1 $16) 18... Qc7 $14 19. Nf4 Rec8 ({Es erróneo } 19... Nxd4 $2 20. Bxd4 (20. Rxd4 Bb5 $11) 20... Rec8 21. Rc3 $18) 20. c3 b5 $1 21. Nh3 {Cg5+ es la amenaza fuerte.} b4 22. Ng5+ Kh8 {Las blancas deberían evitar ...bxc3.} 23. Bf4 (23. c4 $14) 23... Be8 $1 $15 {Amenazando con fuerza . ..Cxd4.} 24. Nxc6 (24. Ngxe6 $11 {permanece igual.} fxe6 25. Nxe6 {[%mdl 64] Ataque doble}) 24... Bxc6 (24... Qxc6 $17 25. Kb1 Qb6) 25. Kb1 $14 {apuntando a c4.} a5 26. c4 $36 {[%mdl 2048] Las blancas quieren jugar h7. Las blancas luchan por la ventaja.} Be8 (26... a4 $11) 27. Rc1 {Esperando por Ae3.} a4 ( 27... Qb7 $11) 28. Be2 b3 {[#]} (28... Ra5 $142) 29. a3 $1 $16 ({Rechace} 29. axb3 $6 Qa5 $11) 29... Qd8 ({Las negras deberían intentar} 29... Qa5 30. Nxe6 fxe6) 30. Nf3 (30. Bd2 $16) 30... Nxf3 $1 $14 31. Rxf3 Kh7 32. Bg5 (32. Bd3 $14 ) 32... Qa5 (32... d5 $11) 33. Rg3 $2 {[#]} (33. Bd3 $14 {mantiene la ventaja.} ) 33... d5 $1 $19 34. exd5 exd5 35. Qf4 (35. Qd4 $17 dxc4 36. Bxc4) 35... Bd7 36. Rgc3 (36. h4 $142 Bf5+ 37. Bd3 Rxc4 38. Qf2 Bxd3+ 39. Rxd3) 36... Bf5+ 37. Bd3 (37. Ka1 $142) 37... Rxc4 38. Qd2 $2 (38. Qxf5 gxf5 39. Bxc4 dxc4 40. Rxc4) 38... Rxc3 39. bxc3 $2 (39. Qxc3 d4 40. Qc4 Bxd3+ {[%mdl 64] Ataque a la descubierta} 41. Qxd3 Qxg5 {[%mdl 64] Ataque doble} 42. Qc4) 39... Bxa3 (39... d4 $142 40. Kb2 Bxd3) 40. Rf1 Bxd3+ (40... Be4 $142 {Amenazan ganar con ...d4!} 41. Bf4 Rc8 42. Bxe4 dxe4) 41. Qxd3 Bd6 (41... d4 $142 42. Qc4 Rf8) 0-1 [Event "Reykjavik"] [Site "Reykjavik"] [Date "1987.??.??"] [Round "3"] [White "Short, Nigel D"] [Black "Arnason, Jon Loftur"] [Result "1-0"] [ECO "B81"] [WhiteElo "2615"] [BlackElo "2540"] [Annotator "M.I J. L. Boudy"] [PlyCount "91"] [EventDate "1987.02.19"] [EventType "tourn"] [EventRounds "11"] [EventCountry "ISL"] [EventCategory "14"] [Source "ChessBase"] [SourceVersion "1"] [SourceVersionDate "2017.10.13"] [SourceQuality "1"] {[%evp 18,91,103,49,62,47,56,57,68,53,83,68,100,46,93,75,117,98,109,76,102,76, 94,57,73,52,66,55,88,69,110,86,126,86,128,114,134,116,167,104,116,101,119,83, 141,130,146,123,167,98,127,76,166,144,219,206,262,244,271,188,309,275,331,317, 358,313,383,280,471,357,325,310,524,559,10008,12800]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Be7 7. g5 Nfd7 8. h4 Nc6 9. Be3 O-O 10. Qe2 ( 10. f4 $16) 10... a6 $14 {B81: Defensa Siciliana (Ataque Keres).} 11. O-O-O Nxd4 12. Rxd4 b5 {Las blancas están ligeramente mejor.} 13. f4 Qa5 14. Kb1 Bb7 15. Bg2 ({Las blancas deberían jugar} 15. a3 $1 $16) 15... b4 $146 (15... Rac8 $14) ({Predecesor:} 15... Rac8 16. a3 Rfe8 17. h5 Nb6 18. Bd2 Nc4 19. Nd5 Qa4 20. Nxe7+ Rxe7 21. Bb4 Rec7 22. Bxd6 Nxa3+ 23. bxa3 Rxc2 {1-0 (41) Kruppa, Y-Rotstein,A Kharkov 1984}) 16. Nd1 e5 {[#]} (16... Rfc8 $142) 17. fxe5 $1 $16 Nxe5 18. Bd2 Nc6 19. Rd5 Qc7 20. Ne3 a5 21. Nf5 Ne5 22. Rd4 Ba6 23. Qd1 Rfd8 ( 23... Bc4 $14 {parece más fuerte.}) 24. Bf4 Bf8 25. h5 Bc4 (25... a4 $142) 26. Ne3 a4 {[#]} 27. g6 $1 {[%mdl 512]} Rab8 {[#]} (27... Be6 $16) (27... fxg6 28. hxg6) 28. Nxc4 (28. Bh3 $1 $18) 28... Nxc4 29. gxf7+ Kh8 30. Qd3 Ne5 (30... Na3+ $142 31. bxa3 bxa3+ 32. Kc1 (32. Ka1 $2 Qb6 $19) 32... Qxf7) 31. Bxe5 dxe5 32. Rd5 $36 {[%mdl 2048] Las negras están bajo fuerte presión.} a3 (32... Rxd5 $16 {podría funcionar mejor.} 33. exd5 (33. Qxd5 $2 Rd8 $19) 33... Qxf7) 33. Rd1 (33. Rf1 $18) 33... Rxd5 34. Qxd5 (34. exd5 $142 Rb6 35. Be4) 34... axb2 (34... Rc8 $16 35. Rd2 b3 36. axb3 axb2) 35. Bh3 ({Pero no} 35. Qb3 $6 Rd8 $14) 35... b3 (35... Rb6 $16 36. Qd8 Qc5) 36. cxb3 $18 Ba3 {( -> ...Dc1+)} 37. Qc4 Qb6 {Ahora ...Tf8 y Las negras aguantan.} 38. Qa4 Bf8 (38... Qe3 {era lo que pedía.} 39. Qe8+ {[%mdl 64] Ataque doble} Bf8 40. Qxb8 Qxe4+ 41. Kxb2 Qe2+ 42. Kc1 Qe3+ 43. Kb1 Qc5) 39. Qe8 {Y ahora h6 ganaría.} Qb4 40. Qxe5 {Las negras deben ahora evitar h6.} Rb5 41. Qd4 {Amenazando mate con Dxb4.} ({No} 41. Qxb2 Qxe4+ 42. Qc2 Qe7 $18) ({No capture} 41. Qe8 Ra5 $18) 41... Qe7 42. h6 Qxf7 $2 (42... Rh5 {valía la pena intentarlo.} 43. hxg7+ Bxg7 44. Qd8+ { [%mdl 64] Ataque doble} Qf8 45. Qxf8+ Bxf8) 43. Rg1 {Amenazan ganar con Dd8.} Rh5 {[#]} 44. Be6 $1 {[%mdl 512]} Qe7 (44... Qxe6 45. hxg7+) 45. hxg7+ Bxg7 { [#]} 46. Rxg7 $1 {[%mdl 576]} 1-0