Saturday, February 29, 2020

Finales De Ajedrez: Ejercicios Prácticos # 9

Image result for The Chess Players


Pon tus conocimientos en práctica con los más importantes finales de ajedrez y que estos ejercicios puedan ayudarte a mejorar y a entender esta interesante parte del juego ciencia.
Cada semana encontrarás diferentes diagramas donde podrás jugar con el programa de ajedrez.  

En esta posición, las Negras van por la captura del peón… Blancas en cambio, deben ejecutar el movimiento de su Rey para darle paso a su peón en (a). ¿Dónde deben las Blancas mover su Rey?


Friday, February 28, 2020

Aydin Suleymanli Gana El Open Aeroflot 2020


Suleymanli gana el Abierto Aeroflot 2020

¡El joven talento azerí, Aydin Suleymanli (en la foto) lo ha conseguido! Se ha coronado campeón del Torneo Aeroflot 2020 al tener la mejor valoración de desempate. En la última ronda firmó tablas con Rauf Mamedov. Rinat Jumabayev quedó subcampeón, Rauf Mamedov ocupó el tercer y Arvindh Chithambaram el cuarto puesto.
ChessBase Games
[Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.19"] [Round "1.22"] [White "Suleymanli, Aydin"] [Black "Indjic, Aleksandar"] [Result "1-0"] [WhiteElo "2474"] [BlackElo "2622"] [Annotator "ChessBase"] [PlyCount "95"] [EventDate "2020.??.??"] [TimeControl "60"] 1. d4 {[%emt 0:00:00]} d5 {[%emt 0:02:45]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0: 00:00]} 3. Nf3 {[%emt 0:00:54]} Nf6 {[%emt 0:00:15]} 4. e3 {[%emt 0:00:14]} Bf5 {[%emt 0:01:26]} 5. Nc3 {[%emt 0:00:10]} e6 {[%emt 0:00:49]} 6. Bd3 {[%emt 0: 00:00]} Bg6 {[%emt 0:01:33]} 7. O-O {[%emt 0:00:14]} Nbd7 {[%emt 0:01:09]} 8. b3 {[%emt 0:10:05]} Bb4 {[%emt 0:02:49]} 9. Bb2 {[%emt 0:01:02]} O-O {[%emt 0: 00:00]} 10. Ne2 {[%emt 0:08:25]} Qe7 {[%emt 0:03:40]} 11. Nf4 {[%emt 0:05:47]} Bxd3 {[%emt 0:03:20]} 12. Nxd3 {[%emt 0:00:09]} Ba3 {[%emt 0:00:32]} 13. Qc1 { [%emt 0:00:13]} Bxb2 {[%emt 0:08:25]} 14. Qxb2 {[%emt 0:00:06]} Rfc8 {[%emt 0: 00:00]} 15. c5 {[%emt 0:04:37]} a5 {[%emt 0:03:21]} 16. a3 {[%emt 0:03:12]} Ne8 {[%emt 0:01:53]} 17. Rfc1 {[%emt 0:03:30]} Nc7 {[%emt 0:00:21]} 18. Nd2 { [%emt 0:00:33]} Re8 {[%emt 0:02:00]} 19. e4 {[%emt 0:04:15]} Nb5 {[%emt 0:00: 00]} 20. e5 {[%emt 0:02:57]} Qg5 {[%emt 0:05:51]} 21. Re1 {[%emt 0:05:24]} Reb8 {[%emt 0:03:01]} 22. Re3 {[%emt 0:02:57]} b6 {[%emt 0:00:27]} 23. Rc1 {[%emt 0: 00:00]} Qe7 {[%emt 0:14:44]} 24. Rg3 {[%emt 0:09:04]} Rb7 {[%emt 0:04:28]} 25. a4 {[%emt 0:12:31]} Nc7 {[%emt 0:00:43]} 26. cxb6 {[%emt 0:00:05]} Rxb6 { [%emt 0:00:09]} 27. Qc3 {[%emt 0:00:08]} Qf8 {[%emt 0:01:42]} 28. Nf4 {[%emt 0: 00:00]} g6 {[%emt 0:04:46]} 29. Qe3 {[%emt 0:05:46]} Ne8 {[%emt 0:02:08]} 30. Rh3 {[%emt 0:12:30]} Ng7 {[%emt 0:09:14]} 31. g4 {[%emt 0:00:09]} f5 {[%emt 0: 00:00]} 32. f3 {[%emt 0:02:50]} g5 {[%emt 0:05:01]} 33. Nh5 {[%emt 0:00:46]} h6 {[%emt 0:00:07]} 34. Rf1 {[%emt 0:07:27]} Rb4 {[%emt 0:03:31]} 35. Nxg7 { [%emt 0:00:50]} Qxg7 {[%emt 0:00:11]} 36. f4 {[%emt 0:00:40]} fxg4 {[%emt 0:00: 00]} 37. Rg3 {[%emt 0:00:11]} h5 {[%emt 0:03:39]} 38. f5 {[%emt 0:00:38]} Rf8 { [%emt 0:00:25]} 39. f6 {[%emt 0:00:37]} Qg6 {[%emt 0:00:33]} 40. Nf3 {[%emt 0: 00:00]} c5 {[%emt 0:00:00]} 41. Qxg5 {[%emt 0:13:30]} Kf7 {[%emt 0:01:51]} 42. Qc1 {[%emt 0:05:40]} Rg8 {[%emt 0:01:01]} 43. dxc5 {[%emt 0:28:17]} h4 { [%emt 0:33:00]} 44. Nxh4 {[%emt 0:00:08]} Qh5 {[%emt 0:00:21]} 45. c6 {[%emt 0: 00:00]} Nxe5 {[%emt 0:01:26]} 46. Qc5 {[%emt 0:02:02]} Qxh4 {[%emt 0:04:46]} 47. Qe7+ {[%emt 0:00:07]} Kg6 {[%emt 0:00:10]} 48. f7 {[%emt 0:00:11]} 1-0 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.20"] [Round "2.11"] [White "Yilmaz, Mustafa"] [Black "Suleymanli, Aydin"] [Result "1/2-1/2"] [WhiteElo "2607"] [BlackElo "2474"] [Annotator "TA"] [PlyCount "57"] [EventDate "2020.??.??"] 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 Nf6 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 {D37: Queen's Gambit Declined: 5 Bf4.} Qxd5 9. Be2 $1 {now scores much better than the old 9.Bd3. Played by Caruana in August 2019.} Qa5+ {The position is equal.} 10. Nd2 $1 Ba6 11. O-O c5 12. Nc4 Bxc4 $1 13. Bxc4 { Threatening d5.} cxd4 14. exd4 {Black should prevent d5.} Nc6 15. d5 exd5 16. Qxd5 Qxd5 17. Bxd5 Rac8 {[#]} 18. Rac1 $146 ({Predecessor:} 18. Rfd1 Bf6 19. Rab1 Nd4 20. Kf1 Rfe8 21. g3 Rc5 22. Bg2 Ne6 23. Be3 Rc2 24. Rd7 {1/2-1/2 (42) So,W (2776)-Karjakin,S (2750) Saint Louis 2019}) 18... Nd4 {[#] Strongly threatening ...Ne2+.} 19. Bc4 Bf6 20. b3 Rfd8 21. Ba6 Rc2 22. Rxc2 Nxc2 23. Bc4 Nb4 24. a4 Nc6 25. Rb1 g6 26. Kf1 Kg7 27. Be3 Nd4 28. Rc1 Nf5 29. Ke2 {Not much happened in this game. Accuracy: White = 100%, Black = 100%.} 1/2-1/2 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.21"] [Round "3.17"] [White "Suleymanli, Aydin"] [Black "Praggnanandhaa R"] [Result "1/2-1/2"] [WhiteElo "2474"] [BlackElo "2602"] [Annotator "ChessBase"] [PlyCount "125"] [EventDate "2020.??.??"] [TimeControl "60"] 1. c4 {[%emt 0:00:00]} b6 {[%emt 0:00:09]} 2. Nc3 {[%emt 0:03:13]} Bb7 { [%emt 0:00:29]} 3. Nf3 {[%emt 0:01:15]} Nf6 {[%emt 0:01:14]} 4. d4 {[%emt 0:00: 00]} g6 {[%emt 0:04:49]} 5. Qc2 {[%emt 0:04:35]} Bg7 {[%emt 0:01:35]} 6. Bg5 { [%emt 0:00:52]} d6 {[%emt 0:08:14]} 7. h3 {[%emt 0:07:14]} O-O {[%emt 0:07:10]} 8. e3 {[%emt 0:08:50]} a6 {[%emt 0:17:44]} 9. Be2 {[%emt 0:25:30]} c5 {[%emt 0: 00:00]} 10. O-O {[%emt 0:00:09]} Nbd7 {[%emt 0:03:36]} 11. d5 {[%emt 0:05:34]} b5 {[%emt 0:03:04]} 12. e4 {[%emt 0:00:15]} b4 {[%emt 0:08:28]} 13. Nd1 { [%emt 0:01:52]} e6 {[%emt 0:02:21]} 14. Ne3 {[%emt 0:03:53]} Qc7 {[%emt 0:00: 00]} 15. Rad1 {[%emt 0:04:31]} Rfe8 {[%emt 0:02:12]} 16. Nd2 {[%emt 0:00:55]} a5 {[%emt 0:02:16]} 17. Rde1 {[%emt 0:06:02]} a4 {[%emt 0:02:49]} 18. Qb1 { [%emt 0:00:14]} b3 {[%emt 0:05:31]} 19. a3 {[%emt 0:01:05]} Ba6 {[%emt 0:01:03] } 20. Bf4 {[%emt 0:02:08]} Re7 {[%emt 0:10:11]} 21. Bg5 {[%emt 0:06:43]} Ree8 { [%emt 0:03:47]} 22. h4 {[%emt 0:16:43]} exd5 {[%emt 0:07:21]} 23. exd5 { [%emt 0:00:33]} h5 {[%emt 0:01:51]} 24. Bf4 {[%emt 0:02:14]} Re7 {[%emt 0:00: 00]} 25. Bg5 {[%emt 0:00:41]} Rae8 {[%emt 0:01:11]} 26. Qc1 {[%emt 0:00:24]} Ne5 {[%emt 0:01:03]} 27. Nb1 {[%emt 0:00:33]} Ne4 {[%emt 0:02:18]} 28. Bf4 { [%emt 0:00:33]} Qa5 {[%emt 0:02:41]} 29. f3 {[%emt 0:00:25]} Nf6 {[%emt 0:00: 00]} 30. Bg5 {[%emt 0:00:36]} Ned7 {[%emt 0:01:04]} 31. Bd3 {[%emt 0:00:29]} Nh7 {[%emt 0:01:24]} 32. Bxe7 {[%emt 0:00:08]} Rxe7 {[%emt 0:00:01]} 33. Nc3 { [%emt 0:00:51]} Bd4 {[%emt 0:00:20]} 34. Kh1 {[%emt 0:00:22]} Qd8 {[%emt 0:00: 00]} 35. g3 {[%emt 0:00:11]} Ne5 {[%emt 0:01:16]} 36. Bb1 {[%emt 0:00:41]} Nxc4 {[%emt 0:01:05]} 37. Nxc4 {[%emt 0:00:15]} Bxc4 {[%emt 0:00:02]} 38. Rxe7 { [%emt 0:00:21]} Qxe7 {[%emt 0:00:23]} 39. Re1 {[%emt 0:00:01]} Qd7 {[%emt 0:00: 00]} 40. Kg2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 41. Ne2 {[%emt 0:18:22]} Bxe2 {[%emt 0:05:45]} 42. Rxe2 {[%emt 0:00:53]} Nxd5 {[%emt 0:00:38]} 43. Qg5 { [%emt 0:09:57]} Nf6 {[%emt 0:01:04]} 44. Bd3 {[%emt 0:05:07]} Kg7 {[%emt 0:00: 00]} 45. Rd2 {[%emt 0:01:14]} Qc6 {[%emt 0:05:12]} 46. Re2 {[%emt 0:01:19]} c4 {[%emt 0:04:41]} 47. Bb1 {[%emt 0:03:01]} Qc7 {[%emt 0:01:27]} 48. Qd2 { [%emt 0:05:06]} Bc5 {[%emt 0:08:10]} 49. Qg5 {[%emt 0:04:57]} Ba7 {[%emt 0:00: 00]} 50. Re6 {[%emt 0:02:30]} Qd8 {[%emt 0:09:48]} 51. Bxg6 {[%emt 0:00:12]} fxg6 {[%emt 0:05:37]} 52. Qf4 {[%emt 0:00:30]} d5 {[%emt 0:01:28]} 53. Qe5 { [%emt 0:02:07]} Kf7 {[%emt 0:01:24]} 54. Rc6 {[%emt 0:00:29]} Bb8 {[%emt 0:00: 00]} 55. Qe6+ {[%emt 0:00:04]} Kg7 {[%emt 0:00:09]} 56. g4 {[%emt 0:00:16]} hxg4 {[%emt 0:00:29]} 57. fxg4 {[%emt 0:00:12]} d4 {[%emt 0:00:38]} 58. Kh3 { [%emt 0:01:45]} g5 {[%emt 0:01:59]} 59. h5 {[%emt 0:00:58]} d3 60. Qf5 { [%emt 0:00:00]} d2 {[%emt 0:00:00]} 61. h6+ {[%emt 0:06:28]} Kf7 {[%emt 0:00: 00]} 62. Qe6+ {[%emt 0:00:20]} Kg6 {[%emt 0:01:14]} 63. Qf5+ {[%emt 0:00:08]} 1/2-1/2 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.22"] [Round "4.17"] [White "Kobalia, Mikhail"] [Black "Suleymanli, Aydin"] [Result "1/2-1/2"] [WhiteElo "2609"] [BlackElo "2474"] [Annotator "TA"] [PlyCount "116"] [EventDate "2020.??.??"] 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 e6 5. Nc3 Nf6 6. Nf3 Bb4 7. cxd5 Nxd5 8. Bd2 Nc6 9. Bd3 O-O 10. O-O Nf6 11. Bg5 Be7 12. Re1 Nb4 13. Bc4 Bd7 {D42: Queen's Gambit Declined: Semi-Tarrasch: 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3 .} 14. Ne5 { [#]} Be8 $146 ({Predecessor:} 14... Bc6 15. Nxf7 Rxf7 16. Bxe6 Be8 17. a3 Na6 18. Qe2 Nc7 19. Bxf7+ Kxf7 20. d5 Bd6 21. Ne4 {1-0 (31) Hovhannisyan,R (2530) -Anastasian,A (2578) Yerevan 2011}) 15. Rc1 Rc8 16. Qb3 Nc6 17. Nxc6 Rxc6 ( 17... Bxc6 {with more complications.} 18. Red1 Nd5 19. Bxe7 Nxe7 20. d5 exd5 21. Bxd5 Nxd5 22. Nxd5 Re8) 18. d5 exd5 19. Bxf6 dxc4 20. Bxe7 Qxe7 21. Rxe7 cxb3 22. Rxb7 bxa2 23. Rxa7 Rb6 24. Rxa2 Bd7 25. Nd5 $36 {White is pushing.} Rb5 26. Rd1 {Strongly threatening Ne7+.} Rb7 27. b4 $1 Be6 {[#]} 28. Rb2 $1 Rfb8 29. Nf4 Bf5 30. Rd4 h6 31. h4 g5 32. Ne2 Kg7 33. Ng3 Be6 34. Ne4 Rb5 35. hxg5 hxg5 36. Nc3 Rc5 37. bxc5 Rxb2 $14 {Endgame KRB-KRN} 38. Ne4 Rb1+ 39. Kh2 f6 40. Rd6 Kf7 41. Rd3 Rb4 42. f3 g4 43. Kg3 Ke7 44. Ra3 gxf3 45. gxf3 Bd7 46. Re3 Be6 47. f4 Rb2 48. Nd6 {[#] Hoping for Nf5+.} Kd7 {The position is equal.} 49. Ne8 Rb3 $1 50. Nxf6+ Kc6 51. Rxb3 (51. Kf2 {seems wilder.} Rxe3 52. Kxe3 Kxc5 53. Ke4 Kd6 54. Ne8+) 51... Bxb3 $11 {KB-KN} 52. Ne4 {aiming for f5.} Bc2 53. Kf3 Kd5 54. Nf6+ (54. Nd2 {keeps more tension.} Bf5 55. Nb3 Kc4 56. Nc1 Kxc5 57. Ke3) 54... Kxc5 55. Ke3 Kd6 56. Ne4+ Bxe4 57. Kxe4 {Kf5 would kill now.} Ke6 58. f5+ Kf6 {Accuracy: White = 90%, Black = 92%.} 1/2-1/2 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.23"] [Round "5.14"] [White "Suleymanli, Aydin"] [Black "Martirosyan, Haik M."] [Result "1/2-1/2"] [WhiteElo "2474"] [BlackElo "2630"] [Annotator "TA"] [PlyCount "69"] [EventDate "2020.??.??"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 Qb6 7. e3 Be7 8. g4 {E38: Nimzo-Indian: Classical: 4...c5.} h6 9. Rg1 Nc6 {[#]} 10. h4 $146 { White is slightly better.} ({Predecessor:} 10. a3 d6 11. h4 Nd7 12. g5 Nde5 13. Nd2 h5 14. b4 a5 15. b5 Nb8 16. Bb2 {1/2-1/2 (34) Wirig,A (2490)-Levin,F (2504) Germany 2014}) 10... h5 11. gxh5 Nxh5 12. Bd2 d6 13. Be2 Bd7 14. a3 O-O-O 15. b4 Kb8 16. b5 Na5 (16... Ne5 $16) 17. Na4 Qc7 {next ...Bxb5! is good for Black. } 18. Rb1 Nf6 19. b6 axb6 20. Nxb6 Nc6 21. Rg5 {[#] And now Qa4 would win.} d5 22. cxd5 Nxd5 23. Nxd5 (23. Rxd5 $18 exd5 24. Nxd5) 23... exd5 $16 24. Rxd5 Bxh4 25. Nxh4 Rxh4 26. Bf3 {Threatens to win with Rdb5.} Rh6 27. Rdb5 Bc8 28. Ba5 ({White should play} 28. Bc3 $18) 28... Nxa5 $14 29. Qxc7+ Kxc7 30. Rxa5 Rf6 31. Ke2 Kb8 32. Rab5 Rd7 $1 33. a4 Rc7 34. Be4 Ka7 35. Ke1 {Blacks defense is rewarded with a draw. Accuracy: White = 75%, Black = 93%.} 1/2-1/2 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.24"] [Round "6.17"] [White "Durarbayli, Vasif"] [Black "Suleymanli, Aydin"] [Result "0-1"] [WhiteElo "2625"] [BlackElo "2474"] [Annotator "TA"] [PlyCount "81"] [EventDate "2020.??.??"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 Qb6 $1 {is more profitable than 6...cxd4 at the moment. Played by Vladislav Artemiev in January 2020.} 7. Nc3 Nc6 8. Na4 {B12: Caro-Kann: Advance Variation.} (8. O-O $5) 8... Qa5+ 9. c3 c4 10. Nh4 {The position is equal.} b5 11. Nxf5 exf5 12. Nc5 Bxc5 13. dxc5 Nge7 {[#]} 14. b4 $146 ({Predecessor:} 14. O-O b4 15. Qc2 O-O 16. f4 Rab8 17. Bf3 bxc3 18. Qxc3 Qb5 19. Rf2 Rfd8 20. Rd2 h6 21. Rad1 Qa4 22. Ra1 Qb5 23. Rad1 Qa4 24. Ra1 {1/2-1/2 (24) Bartel,M (2600)-Admiraal,M (2504) Benasque 2019}) 14... Qa3 15. Qc2 d4 16. cxd4 (16. Bxd4 $15 Nxd4 17. cxd4) 16... Qxb4+ (16... f4 $17 17. Qc1 (17. Bxf4 Nxd4 18. Qd2 Rd8 $17) 17... Qxc1+ 18. Bxc1 Nxd4) 17. Qd2 (17. Kf1 $15 Rd8 18. Rb1) 17... a5 (17... Qxd2+ $17 18. Kxd2 O-O-O) 18. a4 $1 $15 {Black must now prevent axb5.} f4 19. axb5 c3 20. Qd3 {And now Rb1 would win.} fxe3 21. fxe3 (21. bxc6 $2 c2+ 22. Kf1 Qb2 $19) 21... Qb2 $1 22. O-O Nb4 23. Qe4 O-O 24. Bc4 $2 (24. Bd3 $17 {was forced.} g6 25. Bc4 ) 24... c2 $1 $19 25. Rac1 Rad8 $2 ({Black should play} 25... a4 $1 $19 26. Bd3 g6) 26. Bd3 $1 $11 g6 $1 {next ...Ned5 is good for Black.} (26... Nxd3 $6 27. Qxd3 Qb4 28. Rxc2 $16) 27. b6 $1 Ned5 ({Black should try} 27... Qa3 $1 $15 28. Bxc2 Ned5) 28. Bc4 $1 Qc3 29. Bxd5 $1 Rxd5 30. b7 {Hoping for e6.} Rb8 { aiming for ...Qc4.} 31. e6 $2 (31. g4 $1 $11 {and White has nothing to worry.} Rd7 32. e6) 31... f5 $19 32. Rxc2 Qxc2 ({And not} 32... fxe4 33. Rxc3 Rxb7 34. c6 $16) 33. Qxc2 Nxc2 34. c6 Rb5 ({But not} 34... Nxe3 $2 35. c7 $18) 35. d5 { Strongly threatening d6.} Kg7 36. d6 {[#]} Kf6 $2 ({Avoid the trap} 36... Nxe3 $2 37. d7 $18) (36... Nb4 $1 $19 37. Rc1 {[#]} Nxc6 $1 38. Rxc6 R5xb7) 37. d7 $2 (37. e7 $11 R5xb7 38. cxb7) 37... Rc5 {Black is clearly winning.} 38. Rd1 Rd8 39. e4 Ke7 40. exf5 gxf5 41. Rd5 {Accuracy: White = 57%, Black = 66%.} 0-1 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.25"] [Round "7.10"] [White "Suleymanli, Aydin"] [Black "Smirin, Ilia"] [Result "1-0"] [WhiteElo "2474"] [BlackElo "2615"] [Annotator "TA"] [PlyCount "65"] [EventDate "2020.??.??"] 1. d4 d6 2. c4 e5 3. e3 Nd7 4. Nc3 g6 5. g3 Bg7 6. Bg2 Ne7 7. Nge2 O-O 8. O-O { A21: English Opening: 1...e5 2 Nc3.} f5 9. dxe5 dxe5 10. e4 {The position is equal.} c6 {[#]} 11. Be3 $146 ({Predecessor:} 11. Bg5 h6 12. Bxe7 Qxe7 13. b3 f4 14. gxf4 exf4 15. f3 Ne5 16. Qc2 g5 17. Rad1 g4 18. Qd2 gxf3 19. Bxf3 Bh3 20. Rf2 Nxf3+ {0-1 (20) Zubia Aramburu,M (1726)-Alonso Bouza,J (2385) San Sebastian 2017}) 11... Qc7 {With the idea ...f4.} 12. Qd2 Nb6 ({Black should try} 12... Nf6 $11) 13. b3 $1 $36 {White has good play.} f4 14. gxf4 exf4 15. Nxf4 Bxc3 16. Qxc3 {Strongly threatening Bc1.} Rxf4 17. Rad1 Be6 {[#]} 18. c5 $1 {Hoping for Rd6. White has strong compensation. White now steadily converts the win.} Rh4 19. Rd6 Nd7 $2 (19... Nec8 $16) 20. f4 $18 Bh3 21. Qc4+ Kf8 { Black wants to play ...Rg4.} 22. Bxh3 Rxh3 23. Qe6 {[#] Double Attack} Rxe3 24. Rxd7 Qxd7 25. Qxd7 Rxe4 26. Qd3 Re6 27. Qd7 (27. Qh3 $142 Nf5 28. Qxh7) 27... Re4 $1 28. f5 {White is clearly winning.} gxf5 29. Rxf5+ Kg7 30. Rg5+ Kf6 31. Rg3 {aiming for Qd6+.} b5 (31... Nf5 $142 32. Rf3 Rg8+ 33. Kf2 Re5 34. Qxb7 Rxc5 35. Qxh7 Rg4) 32. Qd6+ Kf7 33. Qh6 {Accuracy: White = 84%, Black = 63%.} 1-0 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.26"] [Round "8.5"] [White "Maghsoodloo, Parham"] [Black "Suleymanli, Aydin"] [Result "0-1"] [WhiteElo "2674"] [BlackElo "2474"] [Annotator "TA"] [PlyCount "54"] [EventDate "2020.??.??"] 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Bf5 7. Qb3 Nc6 8. Qxb7 Nb4 {aiming for ...Nc2+.} 9. Rc1 {And now a3 would win. D35: Queen's Gambit Declined: Exchange Variation.} (9. Bxc7 Qc8 $17) 9... O-O 10. Qxc7 Qxc7 11. Bxc7 {The position is equal.} Rfc8 (11... Rac8 $5 12. Bf4 Ne4 $11) 12. Bf4 Ne4 {[#]} 13. f3 $146 (13. a3 $11 Nxc3 14. bxc3 Nd3+ 15. Bxd3 Bxd3 16. Kd2) ({ Predecessor:} 13. g4 Bxg4 14. f3 Bh4+ 15. Bg3 Nxg3 16. hxg3 Bxg3+ 17. Kd2 Bf5 18. a3 Nc6 19. Nxd5 {1-0 (35) Osmak,I (2355)-Buksa,N (2385) Zhitomir 2017}) 13... Nxc3 $15 14. bxc3 {e4 is the strong threat.} ({But not} 14. Rxc3 Nxa2 15. Rc7 Rxc7 $17) 14... g5 15. Bg3 a5 $1 ({Don't play} 15... Nxa2 $6 16. Ra1 $14) 16. a4 $1 Na2 17. Ra1 Nxc3 18. Ne2 Bb4 (18... Nxe2 $15 19. Bxe2 Rc2) 19. Kf2 $11 Bc2 $36 {Strongly threatening ... Nd1+. White is under pressure.} 20. Nxc3 Bxc3 21. Ra2 (21. Ra3 $11) 21... Bb1 $17 22. Re2 {[#]} (22. Ra3 $17 {was the only defense.} Bb4 23. Be2) 22... Rc4 $1 $19 23. Rc2 {[#]} (23. Be5 $142) 23... Be1+ $1 24. Kxe1 Rxc2 {Black is clearly winning.} 25. h4 (25. Be2 $142 Ra2 26. h4) 25... Rac8 26. Bd6 R8c3 27. hxg5 Rb2 {Accuracy: White = 33%, Black = 94%.} 0-1 [Event "18th Aeroflot Open-A 2020"] [Site "Moscow"] [Date "2020.02.27"] [Round "9.1"] [White "Mamedov, Rauf"] [Black "Suleymanli, Aydin"] [Result "1/2-1/2"] [WhiteElo "2643"] [BlackElo "2474"] [Annotator "TA"] [PlyCount "58"] [EventDate "2020.??.??"] 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 e6 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 7. Nf3 Bd6 8. O-O Nge7 { White has an edge.} 9. Re1 a6 {[#] 9...0-0 is setting a new trend.} 10. Nbd2 $146 ({Predecessor:} 10. b3 h6 11. Ba3 Bxa3 12. Nxa3 Bd7 13. Qd2 O-O 14. Nc2 Rfe8 15. Rac1 Rac8 16. Ne3 {1/2-1/2 (40) Goryachkina,A (2495)-Ushenina,A (2422) Stary Smokovec 2018}) 10... f6 11. c4 O-O 12. a3 Ng6 13. Nf1 Qf7 14. Bd2 Nf4 15. Bxf4 Bxf4 16. Ne3 Kh8 17. Qc2 g6 18. Re2 Bd7 19. cxd5 exd5 20. Rae1 Rad8 21. Qc5 Be6 22. Nd1 Bd6 23. Qb6 Bc7 24. Qb3 Bc8 25. Ne3 Bb8 {The position is equal.} 26. Qc3 Bd7 27. Qb3 Bc8 28. Qc3 Bd7 29. Bb1 Bd6 {Accuracy: White = 91%, Black = 100%.} 1/2-1/2

Wednesday, February 26, 2020

La Revolución De Los 70'S #3 Miles,Anthony John (2560) - Adorjan,Andras (2525) [A30] Interzonal–11a Riga (17), 29.09.1979

ChessBase La Revolución De Los 70'S
[Event "Interzonal-11a"] [Site "Riga"] [Date "1979.09.29"] [Round "17"] [White "Miles, Anthony John"] [Black "Adorjan, Andras"] [Result "0-1"] [ECO "A30"] [WhiteElo "2560"] [BlackElo "2525"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "64"] [EventDate "1979.09.05"] [EventType "tourn"] [EventRounds "17"] [EventCountry "URS"] [EventCategory "12"] {[%evp 0,64,16,62,77,-38,50,-38,73,-9,54,-46,43,23,71,61,105,-8,119,11,65,11, 25,8,8,10,27,28,25,21,27,-18,3,27,34,-1,20,0,22,-41,-40,-108,-40,-60,-8,-9,-2, -63,-84,-84,-73,-74,-110,-242,-275,-374,-394,-611,-413,-421,-426,-596,-710, -793,-871,-877,-907]} {Apertura Inglesa, Simétrica Doble Fianchetto} 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. b3 O-O 10. Ba3 (10. Rd1 Nbd7 11. Bb2 a6 12. Qe3 Qb8 13. Nd4 Bxg2 14. Kxg2 Qb7+ 15. Qf3 Qxf3+ 16. Nxf3 Rfc8 17. Nd4 Rab8 18. Rac1 h6 19. e4 Ne8 20. f4 Bf6 21. Kf3 Rb7 22. Ba3 Rbc7 23. Nce2 Nc5 24. Rd2 g6 {Karpov,A (2690)-Gheorghiu,F (2545) Moscow 1977 1-0 (40)}) 10... Na6 11. Rfd1 $146 (11. Rad1 Nc5 12. Ng5 Bxg2 13. Kxg2 Qc7 14. Bb2 Qb7+ 15. f3 Rad8 16. e4 a6 17. Nh3 b5 18. Nf2 bxc4 19. Qxc4 d5 20. Qe2 Rfe8 21. Ba1 d4 22. Nb1 e5 23. Nd2 Qb5 24. Nc4 Nfd7 25. Qd2 Bf8 {Pavlenko,O (2370)-Kasparov,G Soviet Union 1979 EXT 2015 [Kasparov,G] 1/ 2-1/2 (33)}) (11. e4 Qb8 12. Qe3 Nc5 13. Nd4 Re8 14. Rad1 Bf8 15. Rfe1 a6 16. Bb2 g6 17. h3 Bg7 18. e5 dxe5 19. Nc6 Qc8 20. Nxe5 Bxg2 21. Kxg2 Ra7 22. Qf3 Ncd7 23. Ne4 Rf8 24. Nc6 {1-0 (24) Lechtynsky,J (2420)-Gross,S (2355) Marianske Lazne 1978}) 11... Nc5 12. Rac1 a6 13. b4 Ncd7 14. Bb2 Qb8 15. Nd2 Bxg2 16. Kxg2 Rc8 17. f3 {[%csl Ye4,Yg4]} b5 18. cxb5 axb5 19. Qd3 (19. a3 $142 $5 $11 {[%csl Ya3]}) 19... Ne5 $17 20. Qxb5 Qa7 (20... Nd5 21. Qxb8 Ne3+ 22. Kf2 Nxd1+ 23. Nxd1 Raxb8 24. Rxc8+ Rxc8 25. a3 $17) 21. e4 $15 Qe3 22. Qf1 g5 23. Rc2 $2 {[%csl Rc2]} (23. Ne2 $142 $5 $11 {[%csl Ge2]}) 23... Rxa2 $1 $17 { [%csl Ga2]} 24. Nd5 $2 {[%csl Rd5]} (24. Nxa2 Rxc2) 24... Rxc2 $19 25. Nxe3 Rcxb2 26. Qe2 (26. Nec4 Nxc4 27. Qxc4 Rxd2+ 28. Rxd2 Rxd2+ 29. Kf1 $19) 26... g4 27. f4 (27. fxg4 $4 {[%csl Rg4]} Nxe4 $1 {[%csl Ge4]} 28. Nef1 Nc3 $19) 27... Nxe4 $1 {[%csl Ge4]} 28. Nef1 (28. Nxe4 Rxe2+ (28... Rxb4)) 28... Nxd2 ( 28... Nc3 29. fxe5 Nxe2 30. exd6 Bxd6 $19) 29. Rxd2 (29. Nxd2 Nf3 $19) 29... Rxd2 30. Nxd2 (30. Qxd2 Rxd2+ 31. Nxd2 $19) 30... Nf3 $1 {[%csl Gf3]} 31. Qc4 ( 31. Nxf3 Rxe2+) 31... Rxd2+ 32. Kf1 Bf6 (32... Bf6 33. h4 Bd4 $19) 0-1

Sunday, February 23, 2020

La Partida Del Día: DEEP BLUE - Garry Kasparov


Un error en el sistema de Deep Blue ayudó para vencer a Garry Kasparov? 


Did a Computer Bug Help Deep Blue Beat Kasparov?

In May 1997, an IBM supercomputer known as Deep Blue beat then chess world champion Garry Kasparov, who had once bragged he would never lose to a machine. Kasparov and other chess masters blamed the defeat on a single move made by the IBM machine.

Garry Kasparov: At peace with AI

Just under twenty-three years ago Garry Kasparov made history by losing a match against a computer named Deep Blue. Today smartphones are capable of running chess engines as powerful as IBM's giant mainframe in 1997. More significantly, thanks to recent progress in artificial intelligence, machines are learning and exploring the game for themselves.
Games
[Event "IBM Man-Machine"] [Site "New York, NY USA"] [Date "1997.05.04"] [Round "2"] [White "Deep Blue (Computer)"] [Black "Garry Kasparov"] [Result "1-0"] [ECO "C93"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "89"] [EventDate "1997.??.??"] {[%evp 33,89,15,62,21,54,27,85,60,97,47,93,75,82,82,118,61,79,62,101,73,130,99, 115,35,83,70,109,67,95,69,95,25,110,49,97,66,100,125,77,57,79,57,152,142,190, 206,232,227,218,191,212,209,216,179,247,196,182,221] C93: Ruy Lopez: Variante Smyslov} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 Na5 14. Bc2 c5 15. b3 Nc6 16. d5 Ne7 17. Be3 Ng6 (17... Nc8 18. a4 Nb6 19. a5 Nc8 20. b4 c4 21. Qd2 Kh8 22. Rad1 Ng8 23. Rf1 Nce7 24. Bb6 Qc8 25. Nh4 Ng6 26. Nxg6+ fxg6 27. f4 Nf6 28. fxe5 dxe5 29. Rf2 Kh7 30. Rdf1 Be7 31. Qe3 Rf8 32. Ne2 {Moreno Carnero,J (2515)-Butnorius,A (2434) Istanbul 2000 1-0 (69)}) 18. Qd2 (18. c4 $14) 18... Nh7 19. a4 Nh4 (19... Be7 $11) 20. Nxh4 $146 {Blancas tienen la iniciativa...} (20. Nh2 Be7 21. b4 c4 22. Ra3 Qc8 23. Qe2 Bg5 24. Rea1 Rb8 25. axb5 axb5 26. Ra6 Qc7 27. Nf3 Ng6 28. Qd2 Bf4 29. Nh5 Bxe3 30. Qxe3 Rb7 31. Nh2 Ne7 32. f4 exf4 33. Qxf4 Nc8 34. e5 Rf8 {Yu Shaoteng (2435)-Liu Dede (2388) Shenyang 1999 1-0 (47)}) 20... Qxh4 21. Qe2 ({Es interesante:} 21. b4 $16) 21... Qd8 (21... Rec8 $14) 22. b4 Qc7 23. Rec1 c4 24. Ra3 (24. Rf1 $16) 24... Rec8 25. Rca1 Qd8 26. f4 Nf6 (26... exf4 $142 27. Bxf4 g6) 27. fxe5 dxe5 28. Qf1 (28. a5 $16) 28... Ne8 (28... a5 $14 {algo para considerar...}) 29. Qf2 Nd6 30. Bb6 (30. a5 $16) 30... Qe8 $14 31. R3a2 Be7 32. Bc5 (32. Qf3 $16) 32... Bf8 (32... a5 $1 $11 {[%csl Ga5] Mantiene el balance...}) 33. Nf5 (33. axb5 $16 axb5 34. Ra6) 33... Bxf5 $1 {[%csl Gf5]} 34. exf5 f6 35. Bxd6 Bxd6 36. axb5 axb5 37. Be4 Rxa2 ({Mejor es:} 37... Qd8 $14) 38. Qxa2 $16 Qd7 (38... Rb8 $16) 39. Qa7 $18 Rc7 40. Qb6 Rb7 41. Ra8+ Kf7 42. Qa6 Qc7 43. Qc6 {[%csl Ga8][%cal Rc6e8]} Qb6+ (43... Qd7 $142 44. Kh2 h5 45. Qxd7+ Rxd7) 44. Kf1 {[%csl Ga8] [%cal Rc6e8]} Rb8 45. Ra6 1-0 [Event "IBM Man-Machine"] [Site "New York, NY USA"] [Date "1997.05.??"] [Round "6"] [White "Deep Blue (Computer)"] [Black "Garry Kasparov"] [Result "1-0"] [ECO "B17"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "37"] [EventDate "1997.??.??"] {[%evp 20,37,142,114,260,218,238,155,171,163,318,350,357,355,389,374,372,352, 531,520]} {B17: Defensa Caro-Kann: Línea Moderna} 1. e4 c6 2. d4 d5 3. Nc3 { [%cal Bb1c3,Bc3e4,Be4g5][%mdl 32]} dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 h6 8. Nxe6 $1 {[%csl Ge6]} Qe7 (8... fxe6 9. Bg6+ Ke7 10. Bf4 Qa5+ 11. c3 Kd8 12. O-O (12. Ne5 Nxe5 13. Bxe5 $17) 12... Be7 13. Bg3 $16) 9. O-O fxe6 10. Bg6+ Kd8 11. Bf4 {[%mdl 1024]} b5 $4 $146 {[%csl Rb5]} (11... Nh7 $16) (11... Qb4 12. a3 (12. Re1 Be7 13. Qe2 Nf8 14. Ne5 Nxg6 15. Nxg6 Re8 16. c4 Bd7 17. Ne5 Bf8 18. Nf7+ Ke7 19. Bd6+ Qxd6 20. Nxd6 Kxd6 21. Qe5+ Ke7 22. Rad1 Kf7 23. Re3 Rac8 24. Rf3 Kg8 25. h3 c5 26. Rxf6 gxf6 {Apel,S (2310)-Stummer,A (2300) Budapest 1994 1-0 (39)}) 12... Qa5 (12... Qb5 13. b3 Be7 14. c4 Qa6 15. Qd3 b5 16. Rfe1 bxc4 17. bxc4 Nf8 18. Ne5 Nxg6 19. Nf7+ Kd7 20. Qxg6 Rg8 21. Rxe6 Kxe6 22. Re1+ Kd7 23. Qf5+ Ke8 24. Nd6+ Kd8 25. Qe5 Bd7 26. Nf7+ {1-0 (26) Siklosi, Z (2400)-Nemeth,M (2175) Lenk 1990}) 13. c4 Be7 14. b4 Bxb4 15. axb4 Qxb4 16. Qe2 b6 17. Rfb1 Qe7 18. Bg3 Nf8 19. Ne5 {1-0 (19) Milligan,H (2125)-Grigoryan, M (2097) Hammershoj 2000}) 12. a4 Bb7 13. Re1 Nd5 14. Bg3 $1 {[%csl Gg3]} Kc8 $2 {[%csl Rc8]} (14... a6 {era la jugada necesaria...}) 15. axb5 $18 cxb5 16. Qd3 Bc6 17. Bf5 $1 {[%csl Gf5][%mdl 512]} exf5 18. Rxe7 Bxe7 (18... Nxe7 $142 19. Qc3 a5) 19. c4 1-0

Wednesday, February 19, 2020

La Revolución De Los 70'S #2 Uhlmann,Wolfgang - Ljubojevic,Ljubomir [A30] IBM Amsterdam (2), 1975

ChessBase La Revolución De Los 70'S # 2
[Event "IBM"] [Site "Amsterdam"] [Date "1975.??.??"] [Round "2"] [White "Uhlmann, Wolfgang"] [Black "Ljubojevic, Ljubomir"] [Result "0-1"] [ECO "A30"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "74"] [EventDate "1975.07.??"] [EventType "tourn"] [EventRounds "15"] [EventCountry "NED"] [EventCategory "11"] {[%evp 24,74,38,-1,13,11,11,10,10,-5,-5,-64,-37,-63,-61,-67,-67,-66,-59,-66, -66,-66,-66,-67,-65,-67,-65,-65,-66,-77,-77,-88,-84,-88,-89,-89,-88,-88,-88, -88,-88,-88,-77,-78,-78,-121,-119,-251,-251,-251,-249,-250,-250] A30: Apertura Inglesa Simétrica: Doble Fianchetto & Hedgehog} 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. d4 (6. O-O Be7 7. d4 (7. Re1)) 6... cxd4 7. Qxd4 a6 ( 7... Nc6 8. Qf4 Bb4 $1 9. Bd2 O-O 10. O-O Be7 11. Rfd1 d6 12. b3 Rc8 13. Bc1 Rc7 14. Ba3 Rd7 15. e4 Qa8) 8. O-O (8. Be3 Bc5 9. Qf4) 8... d6 9. b3 Nbd7 10. Bb2 Be7 11. Rfd1 O-O 12. e4 (12. Qd2 Qc7 13. Nd4 Bxg2 14. Kxg2 Qb7+ 15. f3 Rfc8 16. e4 Ne8 17. Qe2 Bf6 18. Rac1 Ne5 19. Rd2 h6 20. Nd1 Nc6 21. Nxc6 Rxc6 22. Bxf6 Nxf6 23. Ne3 b5 24. Rcd1 Qb6 25. Rd4 Rac8 26. Qd2 Qa7 {Uhlmann, W-Gheorghiu,F Amsterdam 1975 1/2-1/2 (54)}) (12. Ng5 Bxg2 13. Kxg2 Qb8 14. Nge4 Rd8 15. Nxf6+ Bxf6 16. Qxd6 Qb7+ 17. Kg1 Ne5 18. Qa3 Nc6) 12... Qb8 (12... Qc7 13. Rac1 Rad8 14. Qe3 Qb8 15. Ne1 Rfe8 16. h3 Qa8 17. Kh2 {1/2-1/2 (17) Roca, A-Schweber,S (2450) Esquel 1979}) 13. Nd2 $146 (13. h3 Ra7 (13... b5 14. Nd2 b4 15. Ne2 Re8 16. Nc1 Bc6 17. Nd3 Qb7 18. a4 Red8 19. Qe3 Ne8 20. Rac1 Nc5 21. Nxc5 dxc5 22. Bf3 Rd7 23. Be2 Rad8 24. e5 a5 25. Nf3 Rxd1+ 26. Rxd1 Rxd1+ 27. Bxd1 Qd7 28. Be2 {Petrosian,T-Garcia Martinez,S Moscow 1975 MCL [Gagarin,V] 1-0 (57)}) 14. Qe3 Ba8 15. Qe2 Re8 16. Nd4 Bf8 17. Qf1 Rc7 18. Kh2 Rc5 19. Rac1 Rh5 20. Re1 Rc5 21. Red1 Rec8 22. Qe2 g6 23. Nc2 R5c7 24. Nd4 b5 25. cxb5 e5 26. Nc6 Bxc6 27. bxc6 Rxc6 {Schmidt,W-Ornstein,A Stockholm 1975 1-0 (55)}) (13. Qe3 Re8 14. Nd4 Bf8 15. Qd2 Ra7 (15... Qa7 16. Re1 Rac8 17. Re2 Qa8 18. Rae1 Red8 19. h3 Nc5 20. Qe3 Re8 21. Qd2 {1/2-1/2 (21) Karpov,A (2695)-Ljubojevic,L (2620) Manila 1976}) 16. Re1 Ba8 17. Rad1 Nc5 18. Qc2 e5 19. Nf5 b5 20. Ne3 Ne6 21. Ncd5 Nxd5 22. cxd5 Rc7 23. Qd2 Nc5 24. Bc3 g6 25. Ba5 Rce7 26. b4 Nd7 27. Rc1 Nb6 {Kestler,H-Raaste,E (2250) Haifa 1976 1/2-1/2 (44)}) 13... Rc8 14. Qe3 b5 15. cxb5 axb5 16. a3 Bc6 17. b4 (17. Nf3 $11 b4 18. axb4 Qxb4 19. Nd4 Bb7 20. Na4 Qa5) 17... Nb6 18. Rac1 Ng4 19. Qf4 Ne5 20. Bf1 $1 {[%csl Gf1]} Nbc4 21. Nxc4 Bg5 22. Nxe5 Bxf4 23. Nxc6 Bxc1 24. Nxb8 Bxb2 25. Nxb5 Rcxb8 26. Rb1 Bxa3 27. Rb3 Bc1 28. Nxd6 Ra4 29. b5 Ba3 $1 {[%csl Ga3]} 30. Nc4 Bc5 31. Ne5 Ra2 ({No sirve:} 31... Rxe4 $6 {[%csl Re4]} 32. Nd7 $14) 32. Rf3 Rd8 33. Bc4 Rc2 34. Bb3 (34. Kg2 $142) 34... Rb2 $17 35. Kg2 {[%csl Rg2]} (35. Nxf7 $17 { [%csl Gf7]} Rxb3 36. Nh6+ $1 {[%mdl 512]} gxh6 37. Rxb3) 35... Rdd2 $19 { [%cal Rd2f2]} 36. Nd3 Rxb3 37. Nxc5 Rxf3 (37... Rxf3 38. Kxf3 Rb2 $19) 0-1

Sunday, February 16, 2020

Finales De Ajedrez: Ejercicios Prácticos # 8



Pon tus conocimientos en práctica con los más importantes finales de ajedrez y que estos ejercicios puedan ayudarte a mejorar y a entender esta interesante parte del juego ciencia. Cada semana encontrarás diferentes diagramas donde podrás jugar con el programa de ajedrez.  

Peones en sexta y séptima casilla pueden ser muy peligrosos. Pero hay excepciones, donde el Rey alejado de sus piezas puede sacar unas Tablas aprovechando la agilidad de su corcel...


Wednesday, February 12, 2020

La Revolución De Los 70'S # 1 Karpov,Anatoly - Andersson,Ulf [B44] Milan (8), 28.08.1975

ChessBase La Revolución De Los 70'S # 1
[Event "Milan"] [Site "Milan"] [Date "1975.08.28"] [Round "8"] [White "Karpov, Anatoly"] [Black "Andersson, Ulf"] [Result "0-1"] [ECO "B44"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "158"] [EventDate "1975.08.20"] [EventType "tourn"] [EventRounds "11"] [EventCountry "ITA"] [EventCategory "14"] {[%evp 26,158,39,6,51,0,29,0,45,0,36,0,63,-26,37,0,34,4,32,13,42,19,35,17,72, 75,67,48,88,76,131,137,150,15,42,22,47,35,34,21,48,20,50,21,57,-47,70,45,82, -180,-170,-174,-151,-188,-159,-277,-214,-223,-213,-233,-137,-120,-100,-133, -107,-217,-211,-246,-168,-159,-127,-188,-176,-261,-75,-236,-236,-252,-179,-308, -272,-355,-265,-284,-217,-436,-427,-492,-195,-339,-337,-414,-414,-424,-405, -407,-295,-406,-241,-405,-405,-397,-234,-372,-265,-297,-284,-908,-352,-555, -543,-666,-653,-633,-637,-5905,-5884,-5896,-1484,-5865,-1229,-1188,-1159,-1120, -1126,-1088,-983,-982,-966,-950,-885,-858,-841,-835,-340] B44: Siciliana: Taimanov} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O b6 11. Be3 Bb7 12. Rc1 Re8 13. Qb3 (13. f3 $2 d5 $1) 13... Nd7 14. Rfd1 Rc8 (14... Nc5 15. Qc2 $1 (15. Bxc5 $2 {15.Qc2 0.45} bxc5 $1 16. Qxb7 $2 (16. Na4 $17 Qa5 17. Nc2) 16... Na5 $1 $19) 15... Qc7 $13 ( {Mejor es:} 15... e5 $11) (15... Rc8 16. f3 Nb4 17. Qd2 d5 18. cxd5 exd5 19. exd5 b5 20. Nc2 Nxa2 21. Nxa2 Nb3 22. Qd3 Nxc1 23. Bxc1 Qxd5 24. Qxd5 Bxd5 25. Rxd5 Rxc2 26. Kf1 Bb4 27. Nxb4 Rxc1+ 28. Rd1 Rxd1+ 29. Bxd1 Re6 30. Be2 { Kuijpers,F-Geller,E Wijk aan Zee 1975 1/2-1/2 (32)})) (14... Nce5 $11) 15. Rd2 (15. h3 $14) 15... Qc7 $146 16. Qd1 (16. Nd5 $6 {16.f3 0.35} exd5 17. cxd5 Nc5) 16... Qb8 (16... Nc5 $11) 17. f3 (17. f4 $14 {era preferible...}) 17... Ba8 18. Qf1 Nce5 (18... Bf6 $11) 19. Nab1 (19. Nc2 Qc7 20. b3 (20. Na3 $14) 20... b5 $1 ) (19. f4 $14) 19... Nf6 (19... Rf8 $11) 20. Kh1 h6 21. Rdd1 Bf8 22. Nd2 Rcd8 23. Qf2 Ned7 24. a3 $5 (24. Nf1 $1) 24... d5 $5 (24... Bb7 $11 {mantiene la igualdad...}) 25. cxd5 $16 exd5 26. exd5 Bd6 27. Nf1 Rxe3 $5 (27... b5 28. Ba7 $1 Qb7 29. Bd4 $14 (29. Bd3 $16)) (27... b5 $142) 28. Nxe3 $1 (28. Qxe3 { 28.Nxe3 1.57} Bf4 29. Qd4 Bxc1 30. Rxc1 b5 $1 (30... Nc5 {30...b5 0.57} 31. Bc4 $1 $16) 31. Rd1 (31. Ne3 $16) 31... Nb6 32. Ne3 (32. d6 {32.Ne4 0.62} Ne8 $1) ( 32. Ne4 $1 $16 {[%cal Re4f6]} Nfxd5 33. Nfg3) 32... Nbxd5 $1 33. Ncxd5 Bxd5 34. Nf5 Re8 $10 35. Nxh6+ $2 (35. Bf1 $11 {Y Blancas pueden estar tranquilas...}) 35... gxh6 36. Qxf6 Rxe2 37. Rxd5 $4 (37. Qxh6 $19 Qe5 38. Qh4) 37... Re1#) 28... Bxh2 29. Nf1 (29. Nf5 {29.Bxa6 1.39} Bf4 30. Ne7+ $1 (30. Rc2 {30.Qd4 0. 84} Qe5 $1 $17) (30. Qd4 $16) 30... Kf8 31. Nc6 Bxc6 $1 32. dxc6 Bxc1 (32... Qe5 $5 {32...Bxc1 0.27 /\Bg3-+} 33. Qh4 $13 (33. Rc2 $18)) 33. Rxc1 Nc5 $1 34. b4 Ne6 (34... Qf4 $1 $11 35. Rf1 Ne6) 35. Bxa6 $36) (29. Bxa6 $16 Bg3 30. Qc2) 29... Bf4 $11 30. Rc2 b5 $1 31. Bd3 Nb6 32. Be4 Nc4 33. a4 Re8 34. axb5 axb5 35. Re2 ({Blancas tendrían alguna salvación con:} 35. d6 $14 Nxe4 36. Nxe4) 35... Be5 {/\Nxb2} (35... Re5 $1 $15) 36. Qc5 Nd6 37. Na2 $2 {[%csl Ra2]} (37. Bb1 {Mantiene la presión...} Rc8 38. Qf2 $14) 37... Ndxe4 $1 $19 38. fxe4 Bd6 $1 {[%cal Rd6c5]} 39. Qc2 Re5 $1 {[%csl Ge5][%mdl 1024]} 40. g3 (40. Ng3 $2 { 40.Re3 -2.09} Rg5 41. Nf5 Rh5+ 42. Kg1 Ng4 $1 $40 (42... Qa7+ $19 {Y Negras mantienen su superioridad...} 43. Rf2 Bc5) 43. Rc1 $2 (43. g3 $1 $17) 43... Bc5+ 44. Kf1 Rh1#) (40. Re3 $17 {hay lucha...}) 40... Qe8 $1 {[%cal Rf6e4]} 41. Rde1 Bb7 42. Kg1 Nh7 $1 (42... Rg5 $19 43. Kg2 Qd7) 43. Nc1 $17 Ng5 44. Nd2 Bb4 $1 {[%csl Gb4]} 45. Kf2 (45. Qd3 $2 {[%mdl 8192] 45.Rf1 -1.05} Bxd2 46. Rxd2 Bxd5 $19 (46... Rxd5 $142 $1 {[%mdl 512]} 47. exd5 Qxe1+ 48. Kg2 Qxc1)) (45. Kg2 $2 {45.Rf1 -1.27} Qd7 $1 $19 (45... f5 $6 {45...Qd7 -2.65} 46. Nd3 Bxd2 $1 47. Qxd2 Rxe4 $2 (47... Nxe4 $17 48. Qe3 Rxd5) 48. Nf4) 46. Nd3 $2 (46. Kg1 Bxd2 47. Rxd2 Nf3+ 48. Kf2 Nxe1 49. Kxe1) 46... Qh3+ 47. Kf2 Bxd2 $1 48. Qxd2 ( 48. Nxe5 Qh2+ 49. Kf1 Qh1+ 50. Kf2 Nh3#) 48... Qh2+ 49. Ke3 Rxe4#) (45. Qd1 $17 {interesante...}) 45... Bxd2 $1 $19 {[%csl Gd2]} (45... Qe7 $1 {45...Bxd2 -2.13 } 46. Nd3 Qf6+ $2 {[%mdl 8192]} (46... Bxd2 $1 $17 {mantiene el curso...} 47. Rxd2 Nxe4+ 48. Kg1 Rg5) 47. Kg2 $1 Bxd2 48. Nxe5 $4 {[%mdl 8192]} (48. Qxd2 $4 {[%mdl 8192] 48.Rf1 2.75} Qf3+ 49. Kh2 Nxe4 $19 (49... Qh5+ $142 50. Kg1 Nf3+ 51. Kg2 Nxd2 52. Nxe5 Qxe5 53. Rxd2 f5)) (48. Rf1 $18 Rxe4 49. Rxf6 Rxe2+ 50. Kf1) 48... Bxe1 49. Rxe1 $2 (49. Qc7 Bb4 50. Qxb7 Qxe5 51. Qc8+ Bf8 52. Qc3) 49... Qxe5 $19) 46. Rxd2 Nxe4+ 47. Rxe4 Rxe4 48. Ne2 (48. d6 {48.Ne2 -1.76} Rc4 49. Qb1 $2 (49. d7 {49.Qd1 -2.36} Qxd7 $1) (49. Qd1 Rc5 50. d7 $2 (50. Rd4 $19 Rf5+ 51. Rf4) 50... Rf5+ 51. Kg1 Qe3+ 52. Kh2 Rf2+) (49. Qd1 Rc5 50. Rd4 Rf5+ 51. Rf4) 49... Qc6 50. d7 Qg2+ 51. Ke1 {[%cal Rd7d8]} Qxg3+ 52. Ke2 {[%cal Rd7d8]} (52. Rf2 {[%cal Rd7d8]} Qe3+ 53. Ne2 Rd4 $1 $19) 52... Bf3+ 53. Kf1 { [%cal Rd7d8]} Bg2+ 54. Rxg2 {[%cal Rd7d8]} Rf4+ 55. Kg1 $2 {[%cal Rd7d8]} Qe1+ 56. Kh2 Rh4#) 48... Bc8 49. Nc3 (49. d6 $142) 49... Re1 $2 {[%csl Re1]} (49... Re5 $19 50. Re2 b4 51. Rxe5 Qxe5) 50. Ne2 $2 {[%csl Re2]} (50. Re2 $17 Rxe2+ 51. Qxe2 Qxe2+ 52. Kxe2) 50... Ra1 51. Rd4 Qd8 (51... Bh3 {51...Rh1 -2.32} 52. Re4 $2 (52. Rd1 $17 {Es mucha mejor defensa...} Ra4 53. d6) 52... Qd7 53. Qc6 $2 (53. d6 $1 {[%mdl 512]} Qd8 (53... Qxd6 54. Re8+) 54. Nf4 Qb6+ 55. Re3) 53... Qa7+ 54. Nd4 $13) 52. Qc6 (52. d6 $142) 52... Bd7 53. Qd6 Qe8 (53... Rf1+ $1) 54. Qf4 Qc8 $1 55. b4 $2 {[%csl Rb4]} (55. Nc3) 55... Bh3 56. Qe4 Bf5 $6 { [%csl Yf5]} (56... Rf1+ $19 {[%csl Gf1]} 57. Ke3 Bf5 58. Qg2 Qe8+ 59. Kd2 Ra1 $19) 57. Qe3 (57. Qe5 Bh3 58. g4) 57... Qc2 58. g4 Bd7 $1 59. Qe4 Qb3 60. Qd3 Qb2 61. Qe4 Ra8 (61... Qa3 $142 62. Rd3 Qb2) 62. Qe3 $2 (62. Qf4) 62... Ra2 63. d6 $6 {[%csl Yd6]} (63. Qe4 $5 {[%csl Ge4]}) 63... Ra8 $1 (63... Ra1 $142 64. Qe4 g5) 64. Re4 (64. Qd2 $142 Qb1 65. Qd1) 64... Bc6 65. Qd4 Qb1 $1 {[%csl Gb1] } 66. Re7 $2 {[%csl Re7]} (66. Nc3 Qh1 67. d7 Qh4+ 68. Ke3) 66... Qh1 $1 { [%csl Gh1]} (66... Ra1 $142 67. Qc3 Qf1+ 68. Ke3 Ra3 $1 {[%mdl 512]} 69. Qxa3 Qh3+ 70. Kd4 Qxa3) 67. Qf4 (67. d7 $2 {67.Ra7 -3.42} Qh4+ $1 $19) (67. Ra7 $142 Re8 68. Re7) 67... Qg2+ 68. Ke1 Ra1+ 69. Kd2 Qd5+ 70. Qd4 Ra2+ 71. Kc3 Qf3+ $6 (71... Ra3+ $1 72. Kd2 Qa2+ (72... Ra2+ $142 73. Kc3 Qf3+ 74. Qe3 Ra3+ 75. Kd2 Rxe3 76. Rxe3 Qxg4) 73. Ke1 Qb1+ 74. Kd2 Ra2+ 75. Ke3 Qf1 $19) (71... Ra3+ $142 72. Kc2 Ra2+ 73. Kc3 Qf3+ 74. Qe3 Ra3+ 75. Kd2 Rxe3 76. Rxe3 Qxg4) 72. Re3 Ra3+ (72... Qf1 $1 {72...Qh1 -55.66}) (72... Qf1 $142 73. Qd2 Qa1+ 74. Kd3 Qb1+ 75. Kc3 Rxd2 76. Kxd2 Qxb4+ 77. Nc3 Qxd6+ 78. Ke1 Qf4) 73. Kd2 Ra2+ 74. Ke1 Qh1+ 75. Kf2 Qg2+ (75... Ra1 $19) 76. Ke1 Qh1+ (76... Bf3 $2 77. Re8+ $1 Kh7 78. Qd3+ g6 79. d7 Bxe2 $2 ({Otra interesante idea:} 79... Ra1+ $19 80. Kd2 Bxe2 81. Qxe2 Ra2+ 82. Kd3 Rxe2 83. Rxe2 Qg3+ 84. Kd2 Qd6+ 85. Ke3 Qxd7) 80. Rh8+ $1 Kxh8 {[%cal Rg2g1]} 81. d8=Q+ Kh7 {[%cal Rg2g1]} 82. Qxg6+ $1 Kxg6 {[%cal Rg2g3]} 83. Qg5+ $1 Kh7 {[%cal Rg2g3]} (83... Kxg5 $10) 84. Qf5+ Kg8 85. Qg5+ $1 $10) 77. Kf2 Ra1 $1 {[%cal Rh1h2]} 78. Rc3 Qg2+ 79. Ke3 Qf3+ (79... Qf3+ 80. Kd2 Ra2+ 81. Rc2 Rxc2+ 82. Kxc2 Qxe2+ $19) 0-1

Sunday, February 9, 2020

Finales De Ajedrez: Ejercicios Prácticos No. 7

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Portrait of Chess Players by Marcel Duchamp

Pon tus conocimientos en práctica con los más importantes finales de ajedrez y que estos ejercicios puedan ayudarte a mejorar y a entender esta interesante parte del juego ciencia. Cada semana encontrarás diferentes diagramas donde podrás jugar con el programa de ajedrez.  

La posición contiene una trampa dentro de otra trampa. La primera impresión es que las Blancas pueden ir por el peón en (a) llevando su a c3... Pues no es asi... Hay que hacer la del cangrejo... Caminar para atras... 



La Partida Del Día: Gunina,Valentina (2461) - Kosteniuk,Alexandra (2504) [C77] Cairns Cup Saint Louis, United States 2020

ChessBase A game that I liked (ChessBase 15)
[Event "Cairns Cup"] [Site "Saint Louis, United States"] [Date "2020.02.08"] [Round "2.4"] [White "Gunina, Valentina"] [Black "Kosteniuk, Alexandra"] [Result "0-1"] [ECO "C77"] [WhiteElo "2461"] [BlackElo "2504"] [Annotator "Mosaico Ajedrecístico"] [PlyCount "80"] [EventDate "2020.??.??"] {[%evp 10,80,30,15,23,21,40,16,46,46,151,96,139,135,167,88,166,163,180,169,168, 170,168,179,161,70,54,55,55,96,103,103,106,48,51,17,50,0,59,40,54,60,36,60,41, 41,48,0,-57,0,0,0,0,0,0,0,0,0,0,0,0,-109,-104,-124,0,-116,-96,-545,-702,-687, -776,-1287,-1380] C77: Ruy Lopez:} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4 Bg4 7. Be3 (7. h3 Bxf3 8. Qxf3 Nd7 9. Be3 (9. Bxc6 bxc6 10. Nc3 Nc5 11. O-O g6 12. b4 Ne6 13. Be3 Bg7 14. a4 O-O 15. Rab1 Qd7 16. Qd1 f5 17. f3 h5 18. b5 f4 19. Bf2 g5 20. bxc6 Qxc6 21. Nd5 Qe8 22. c5 dxc5 23. Rc1 c6 {Ter Sahakyan,S (2605)-Sevian,S (2595) Martuni 2016 0-1 (103)}) 9... Be7 10. O-O O-O 11. Qg3 (11. Nc3 Bg5 12. Qg4 Bxe3 13. fxe3 Nc5 14. Bxc6 bxc6 15. d4 Nd7 16. d5 c5 17. Rf2 Rb8 18. b3 Nf6 19. Qf5 Qd7 20. Qf3 Qd8 21. Raf1 Ra8 22. Ne2 a5 23. Nc3 Qe7 24. g4 Nd7 25. Qg3 Nb6 {Kovanova,B (2377)-Ambartsumova,K (2306) Loo 2013 1/2-1/2 (48)}) 11... Nc5 12. Bxc5 dxc5 13. Bxc6 $1 bxc6 14. Nc3 Qd4 { Huschenbeth,N (2601)-Sutovsky,E (2689) Austria 2017}) 7... Nd7 8. h3 Bh5 9. Nc3 Qb8 $146 (9... Be7 10. g4 Bg6 11. Qe2 h5 (11... Nb6 $14) 12. O-O-O b5 (12... O-O $142) 13. cxb5 axb5 14. Bxb5 Nb4 15. a3 (15. Bxd7+ $142 Qxd7 16. a3) 15... c6 {Pirttimaki,T-Johnston,G Valetta 1980}) (9... Be7 $14) 10. Nd5 ({Blancas pueden seguir con:} 10. g4 Bg6 11. d4) 10... Qc8 (10... Be7 $142) 11. g4 $146 { [%mdl 2048]} Bg6 12. Nh4 (12. Qb3 $18) 12... Nd8 (12... Nc5 $16) 13. Bb6 $1 $18 {[%csl Gb6] Fue un gran movimiento... que podría haberle dado la victoria...} Ne6 14. Bxc7 b5 15. cxb5 axb5 16. Bxb5 Nxc7 17. Rc1 $2 {[%csl Rc1]} ({Después de:} 17. Nb6 {Negras tienen que entregar su Dama...} Nxb5 18. Nxc8 Rxc8 19. Rc1 {Con mejores chances para las Blancas...}) (17. Nb6 $18 Nxb5 18. Nxc8 Rxc8 19. Nf3 (19. Nxg6 hxg6 20. a4 Nd4 $14)) 17... Nxb5 $14 18. Rxc8+ Rxc8 19. Qa4 (19. Nxg6 hxg6 20. Qa4 Nd4 $15) 19... Rb8 20. O-O Be7 {Blancas tenían mejor juego, pero...} 21. Nxg6 $2 {[%csl Rg6]} ({era menor retornar y defender el peón (d4) } 21. Nf3 $16) 21... hxg6 22. Rc1 Bd8 23. Qa6 (23. Kg2 $14) 23... O-O (23... Rxh3 $11 24. Kg2 Rh4) 24. b4 $1 {[%csl Gb4]} Nf6 $1 {[%csl Gf6]} 25. Rc8 Rxc8 26. Qxc8 Nxd5 27. exd5 Nd4 28. a4 (28. Qd7 $14) 28... f5 $15 29. g5 (29. Qd7 $15) 29... e4 30. dxe4 Bxg5 31. Qc4 Nf3+ $1 {[%csl Gf3]} 32. Kg2 Ne5 $1 { [%cal Re5c4]} 33. Qc2 $2 {[%csl Rc2]} (33. Qc7 fxe4 34. Qxd6 {y mantiene presión...}) 33... fxe4 34. Qxe4 Rf4 35. Qe1 (35. Qe3 $1 $11 {[%csl Ge3]}) 35... Bh4 $17 36. b5 Nd3 ({No sirve:} 36... Bxf2 $6 {[%csl Rf2]} 37. Qc1 $11) ( 36... Rxf2+ $17 37. Qxf2 Bxf2 38. Kxf2 Kf7) 37. Qe8+ (37. Qe6+ $11 Kh7 38. a5 ( 38. Qxd6 $2 {[%csl Rd6]} Rxf2+ 39. Kh1 Nf4 $19)) 37... Kh7 38. f3 $2 {[%csl Rf3][%mdl 8192]} (38. Qe3 $17 Rxf2+ 39. Kh1) 38... Rxa4 $19 39. f4 Ra2+ 40. Kf3 Ne1+ $1 {[%csl Ge1]} 0-1

CHESS TOURNAMENTS

Human Vs. Machine

Mosaico Ajedrecístico Chess Club