[Event "Moscow International-01"] [Site "Moscow"] [Date "1925.11.16"] [Round "6"] [White "Rubinstein, Akiba"] [Black "Lasker, Emanuel"] [Result "0-1"] [ECO "D47"] [Annotator "Tactical Analysis 4.1 (180s)"] [PlyCount "114"] [EventDate "1925.11.10"] [EventType "tourn"] [EventRounds "21"] [EventCountry "URS"] [SourceTitle "EXT 2017"] [Source "ChessBase"] [SourceDate "2016.10.25"] [SourceVersion "1"] [SourceVersionDate "2016.10.25"] [SourceQuality "1"] {Analizada y repasada por Stockfish 14.} 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Be2 a6 9. O-O (9. a4 b4 10. Nb1 c5 11. O-O Bb7 12. Nbd2 Be7 13. Nc4 O-O 14. Nfe5 cxd4 15. exd4 a5 16. Bg5 Nd5 17. Bxe7 Qxe7 18. Qd2 N7b6 19. Nxb6 Nxb6 20. Bb5 Rac8 21. Rac1 Qd6 22. Qe3 Rfd8 23. Rxc8 Rxc8 24. Rd1 Rc2 25. Bd3 Rc7 26. Bb5 Rc2 27. Bd3 Rc7 {½-½ (27) Teichmann, R-Rubinstein,A, Karlsbad-03 International Masters Karlovy Vary (14) 1923}) 9... Bb7 10. b3 Be7 {D47: Semi-Slav: Meran System.} (10... c5 11. Bb2 Qb6 12. a4 cxd4 13. exd4 b4 14. Nb1 Rd8 15. Nbd2 Be7 16. Nc4 Qc7 17. Rc1 O-O 18. Bd3 Qf4 19. Nce5 Bd6 20. Rc4 Qh6 21. Nc6 Rc8 22. Nfe5 Bxc6 23. Bc1 g5 24. f4 Bxe5 25. dxe5 Nd5 26. fxg5 Qg7 27. Rh4 Nxe5 28. Rxh7 Qxh7 29. Bxh7+ Kxh7 30. Bb2 Nc3 31. Qh5+ Kg7 32. Qh6+ Kg8 33. Re1 Rcd8 34. Bc1 Ne2+ 35. Kf1 Nxc1 36. Rxc1 Rd2 37. Rxc6 Nxc6 38. g6 fxg6+ 39. Ke1 Rxg2 40. Qh3 Rg1+ 41. Kd2 Nd4 42. Qe3 Nf3+ 43. Kd3 Rd1+ 44. Kc4 Rd4+ {0-1 (43) Hahlbohm,H-Lasker,Edward, Western CA-19 Masters Chicago 1918}) 11. Bb2 O-O $146 ({Predecessor:} 11... c5 12. Bd3 Qb6 13. Qe2 O-O 14. Rfd1 cxd4 15. exd4 Rac8 16. Rac1 Qa5 17. Bb1 b4 18. Na4 Qh5 19. Bd3 Nd5 20. Ne5 Qg5 21. Qf3 Nxe5 22. dxe5 Rxc1 23. Rxc1 Nf4 24. Qxb7 Nxd3 25. Rf1 Nf4 26. Qf3 Nd5 27. Qe2 a5 28. Qb5 Bd8 29. Nc5 Qd2 30. Ba1 Nc3 31. Bxc3 bxc3 32. Nd7 c2 33. Qc6 Be7 34. Nxf8 Bxf8 35. g3 g6 36. Qc7 Ba3 {0-1 (35) Kupchik,A-Duras,O New York Rice Chess Club (6) 1913}) 12. Ne5 c5 {[#] The position is equal.} 13. Bf3 Qc7 14. Nxd7 $5 Nxd7 15. Ne4 Rad8 16. Rc1 Qb8 17. Qe2 {[%CAl Re4c5]} cxd4 {[#]} 18. exd4 $2 ({White should play} 18. Bxd4 e5 19. Bc5 Nxc5 20. Nxc5 Bxc5 21. Rxc5 Bxf3 22. Qxf3 Rd2 23. a4 $11) 18... Rc8 $15 19. g3 Qa8 $1 20. Kg2 Rfd8 21. Rxc8 Rxc8 22. Rc1 Rxc1 23. Bxc1 h6 24. Bb2 Nb6 25. h3 Qc8 26. Qd3 Nd5 27. a3 {[#]} Nb6 $5 (27... f5 $5 {keeps more tension.} 28. Nc5 e5 29. Qc2 e4 30. Bd1 Ba8 31. Bc1 Bf6 $15) 28. Kh2 Bd5 29. Kg2 Qc6 {[#]} 30. Nd2 (30. Nc3 Bxf3+ 31. Qxf3 Qd7 32. Ne4 Nd5 33. Nc3 Nxc3 34. Qxc3 a5 35. a4 bxa4 36. bxa4 Bf6 $15) 30... a5 $1 {[#]} (30... Bxf3+ 31. Nxf3 a5 32. Kh2 Qd5 33. Ne5 Bd6 $17) 31. Qc3 $4 {[%mdl 8192] This costs White the game.} (31. Bxd5 $1 {is a better chance.} Nxd5 32. Kg1 a4 33. bxa4 bxa4 34. Ne4 Nb6 $15 { [#] pero difícil de concretar esta ligera ventaja, como demuestra (a modo de ejemplo) el siguiente enfrentamiento entre dos módulos informáticos actuales punteros, al nivel de juego de 40 jugadas en 1 hora, sin finish (palabra ésta que debería erradicarse completamente en el ajedrez de super-élite - sobre todo en las luchas por el Campeonato del Mundo):} 35. Nc3 Qd7 36. d5 $1 Bc5 ( 36... exd5 $4 37. Qd4 Qe6 38. Nxa4 $18) (36... Nxd5 37. Qd4 $1 $11) 37. Ne4 Bf8 38. Qd4 Nxd5 39. Nc3 Qb7 40. Nxa4 Qb3 41. Nc5 Qb6 42. Nd3 Qxd4 43. Bxd4 Bxa3 { [#] pero con marcado cariz de tablas. Sigamos viendo este interesante final:} 44. Kg2 Bb4 45. Nxb4 Nxb4 46. Kf3 Kh7 47. Bc3 Nd5 48. Bd4 Ne7 49. Ke4 g5 50. Bc5 Ng6 51. Bd4 Ne7 52. Bc5 Nd5 53. Bd4 Kg6 54. Ke5 Nb4 55. Bb6 Nc6+ 56. Kd6 Nb4 57. Ke5 Nc2 58. Bc5 Ne1 59. Ke4 h5 60. Be3 f6 61. Bd2 Nc2 62. f3 Na3 63. g4 Nc4 64. Bb4 Ne5 65. Be1 Nf7 66. Ke3 Ne5 67. Ke4 h4 68. f4 Nf7 69. fxg5 Nxg5+ 70. Ke3 Nxh3 71. Bxh4 $11 {[#] Tablebases de Lomonosov. ½-½ Fat Fritz 2-Stockfish 14 Tenerife 2021}) 31... Bxf3+ $1 $19 {Black is clearly winning.} 32. Nxf3 Qxc3 33. Bxc3 {[%mdl 4096] [#] Endgame KBN-KBN} a4 $1 34. bxa4 bxa4 35. Kf1 Bxa3 36. Ke2 Kf8 37. Kd3 Nd5 38. Be1 Bd6 39. Kc4 Ke7 40. Ne5 Bxe5 41. dxe5 {KB-KN} Kd7 42. Bd2 h5 43. Bc1 Kc6 44. Ba3 Nb6+ {[#]} 45. Kd4 (45. Kb4 Kd5 $19) 45... Kb5 46. Bf8 Nc4 47. Kc3 g6 48. f4 Ne3 49. Kd3 Nd5 50. Ba3 h4 51. gxh4 Nxf4+ {[%mdl 64] Double Attack} 52. Ke4 Nh5 53. Kf3 Kc4 54. Bb2 Kb3 55. Ba1 a3 56. Kg4 Kc2 57. Kg5 Kd3 $1 {Weighted Error Value: White=0.68/Black=0.10} (57... Kd3 $1 {[#]} 58. Kh6 Ke4 59. Kh7 Kf5 60. Kg8 f6 61. exf6 Nxf6+ 62. Kf7 e5 $19) 0-1