Dortmund: Caruana Takes Lead, Kramnik Misses Win in Rook Ending

Время публикации: 05.07.2015 01:01 | Последнее обновление: 05.07.2015 02:42

Fabiano Caruana has taken the sole lead for the first time in the current Dortmund tournament. And he did it in very timely fashion - just one round before the end. Today in the sixth round, the American beat Hou Yifan fairly straightforwardly. 

Vladimir Kramnik, who lost to Caruana yesterday, had every chance to avoid losing ground on his rival and to continue his sequence of decisive results. In his game against Nisipeanu, the ex-world champion outplayed his opponent in his own subtle style, in a position without queens, but as often happens, he failed to take the decisive step to victory. 

KRAMNIK - NISIPEANU

43.Bxc6 Unfortunately, there is no other way to make progress, than to go into the "always drawn" rook ending, But in this case, it should be enough. 
43...
Rxc6 44.hxg5 hxg5 45.a4 Rc3 46.Rb5 Rc6 47.f4 Rc3+ 48.Kf2 gxf4 49.Rxb6 Kf7

50.b4? This move does not lose the winning chances, but the simplest route was 50.Rb5! (or 50.Ra6) 50...Kg7 51.Rxa5 Rxb3 52.Ra8 Ra3 53.a5 Kh6 (if the king stays on the seventh rank, then after 53...Kh7 54.a6 Kg7 55.a7 Kh7, the move 56.g5! decides) 54.a6 Kg5 55.a7. Black does not manage to free the f4-square for his king.
50...Rc2+ 51.Kf3 Rc3+ 52.Kf2?
Why didn't Kramnik take the pawn with 52.Kxf4 ? Probably, in the variation 52...Rc4+ he missed 53.Kf3! (not 53.Kg3? because of 53...Rxb4 drawing) 53...axb4 54.a5 Rc3+ 55.Ke4! winning. The rook defends his own passed pawn and the king deals with the enemy one. And if
 52...Ra3, then he wins with either 53.g5! fxg5+ 54.Kxg5, or  53.Rb7+ Kg8 54.b5 Rxa4+ 55.Kg3 Ra1 56.Ra7 Rb1 57.Rxa5, and the two extra pawns are enough to win, even with the inferior rook position.
52...Rc2+ 53.Ke1 Rc1+ 54.Kd2 f3 55.Ke3 Rc3+ 56.Kf2 axb4 57.Rxb4 Kg7

58.Kg3 Objectively the position is already drawn, but White could still force his opponent to show accuracy: 58.Rb8 Rc4! 59.Ra8! (gaining a tempo compared with 59.а5) 59...Rxg4 60.Kxf3 Rb4 61.a5 Ra4 62.a6, and here there is the important saving manoeuvre 62...Kh6!, forcing the advance of the pawn 63.a7 (else the king comes out via g5) 63...Kg7, and this is a draw (why is shown in the variation below).
However, the drawing tendencies of rook endings are so great that the king move to h6 can also be delayed: 62...
Kh7 63.Ke3 Kg7 64.Kd3 Kh7 65.Kc3 Kg7 66.Kb3 Ra1 67.a7 Forced; if 67.Kb4, then 67...Kh6!.
But now, with the pawn on a7, Black just waits: 67...Ra5 68.Kb4 Ra1 69.Kc5 Ra2 70.Kd6 Ra6+ 71.Ke7 etc.

58...Ra3 The rest is simple. Kramnik spent another 25 moves trying to make his opponent err, but in vain. 1/2

One round before the finish, Caruana leads by half a point from Nisipeanu, but tomorrow they play each other, with the German having White. Kramnik is a point behind in third place.
Tables, games, results and all material on the tournament

[Event "43rd GM 2015"] [Site "Dortmund GER"] [Date "2015.07.04"] [Round "6"] [White "Kramnik, Vladimir"] [Black "Nisipeanu, Liviu-Dieter"] [Result "1/2-1/2"] [WhiteElo "2783"] [BlackElo "2654"] [ECO "A13"] [Opening "English"] [Variation "Wimpey system"] [EventDate "2015.06.27"] 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Bb5 Bd6 8. d4 cxd4 9. Nxd4 O-O 10. O-O Qc7 11. h3 Bh2+ 12. Kh1 Be5 13. Qc2 Bd7 14. Nf3 Bxb2 15. Qxb2 Rac8 16. Rc1 Qd6 17. Nc3 Ne5 18. Be2 Nxf3 19. Bxf3 Qe5 20. Qd2 Be6 21. Nb5 Bd7 22. Qd4 Qxd4 23. Nxd4 a5 24. g4 h6 25. Kg2 Rxc1 26. Rxc1 Rc8 27. Rb1 Ra8 28. Ne2 g5 29. Nc3 Be6 30. Rd1 Rd8 31. e4 d4 32. Kg3 Rc8 33. Nb5 Nd7 34. Nxd4 Ne5 35. Be2 Rc3+ 36. f3 Kg7 37. Rd2 Kf6 38. Nf5 Bxf5 39. exf5 Ke7 40. Rd5 Nc6 41. Bb5 b6 42. h4 f6 43. Bxc6 Rxc6 44. hxg5 hxg5 45. a4 Rc3 46. Rb5 Rc6 47. f4 Rc3+ 48. Kf2 gxf4 49. Rxb6 Kf7 50. b4 Rc2+ 51. Kf3 Rc3+ 52. Kf2 Rc2+ 53. Ke1 Rc1+ 54. Kd2 f3 55. Ke3 Rc3+ 56. Kf2 axb4 57. Rxb4 Kg7 58. Kg3 Ra3 59. Rb7+ Kh6 60. Ra7 f2+ 61. Kxf2 Kg5 62. Ke2 Kxg4 63. Ra5 Kf4 64. Kd2 Ke4 65. Kc2 Kd4 66. Ra6 Rc3+ 67. Kb2 Rc4 68. Ra5 Rb4+ 69. Ka3 Kc4 70. Ra6 Rb3+ 71. Ka2 Rb4 72. Ra8 Kc5 73. Ka3 Rf4 74. Rb8 Rf1 75. Rb5+ Kc4 76. Kb2 Rf2+ 77. Kb1 Kc3 78. a5 Kc4 79. Rb7 Rxf5 80. a6 Ra5 81. a7 Kc5 82. Rf7 Kb6 83. Kc2 1/2-1/2[Event "43rd GM 2015"] [Site "Dortmund GER"] [Date "2015.07.04"] [Round "6"] [White "Caruana, Fabiano"] [Black "Hou Yifan"] [Result "1-0"] [WhiteElo "2805"] [BlackElo "2676"] [ECO "D31"] [Opening "QGD"] [Variation "3.Nc3"] [EventDate "2015.06.27"] 1. c4 e6 2. Nc3 d5 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 Nf6 6. e3 c6 7. a4 O-O 8. Nf3 b6 9. cxd5 exd5 10. Bd3 Ba6 11. O-O c5 12. Ne5 Re8 13. a5 Bxd3 14. Nxd3 Nc6 15. axb6 axb6 16. Rxa8 Qxa8 17. dxc5 bxc5 18. Nxc5 Ne5 19. Nd3 Nc4 20. Nf4 h6 21. Qd4 Re4 22. Qc5 Re5 23. f3 Qa2 24. Qd4 Qa4 25. h4 Qb5 26. g4 Nd7 27. Nd3 Re6 28. Kg2 Ndb6 29. Nf4 Re5 30. Nh5 Qb1 31. e4 dxe4 32. f4 Rxh5 33. gxh5 Qc2+ 34. Kh1 Qe2 35. Rg1 Qf3+ 36. Rg2 g6 37. hxg6 Qf1+ 38. Kh2 Qxc1 39. Qf6 1-0 [Event "43rd GM 2015"] [Site "Dortmund GER"] [Date "2015.07.04"] [Round "6"] [White "Nepomniachtchi, Ian"] [Black "Naiditsch, Arkadij"] [Result "1-0"] [WhiteElo "2720"] [BlackElo "2722"] [ECO "D36"] [Opening "QGD"] [Variation "exchange, positional line, 6.Qc2"] [EventDate "2015.06.27"] 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 Nbd7 8. Bd3 O-O 9. Nge2 Re8 10. O-O h6 11. Bf4 Nf8 12. a3 a5 13. f3 Nh5 14. Be5 f6 15. Bg3 Nxg3 16. Nxg3 Bd6 17. Rae1 Qc7 18. f4 Be6 19. Nf5 Bxf5 20. Bxf5 Re7 21. h4 Rae8 22. Rf3 b5 23. h5 b4 24. axb4 Bxb4 25. Re2 Qd6 26. Qd3 Rd8 27. Na4 c5 28. Nxc5 Bxc5 29. dxc5 Qxc5 30. Rc2 Qb6 31. Kh2 Ne6 32. Rg3 Kh8 33. Qa3 Qb4 34. Qxb4 axb4 35. Rc6 Nc7 36. Rf3 Nb5 37. Rc5 Nc7 38. Bg6 Kg8 39. Rc6 Kf8 40. b3 Ne8 41. Rb6 Rc7 42. Rxb4 Nd6 43. Rf1 Ke7 44. Rd1 Rc5 45. Rb6 Rb5 46. Rxb5 Nxb5 47. Kg3 Ke6 48. Kg4 Nd6 49. e4 dxe4 50. Bxe4 Rb8 51. Bd5+ Kd7 52. Ra1 f5+ 53. Kh3 Ne8 54. Ra7+ Nc7 55. Bc4 Kd6 56. Ra5 Rf8 57. Kg3 Rf6 58. Kf3 Kc6 59. g3 Ne8 60. Re5 Nd6 61. Bd3 Rf7 62. b4 Rb7 63. Rc5+ Kd7 64. b5 Ke6 65. Re5+ Kf6 66. Ke3 Ra7 67. Kd4 Ra3 68. Bc4 1-0 [Event "43rd GM 2015"] [Site "Dortmund GER"] [Date "2015.07.04"] [Round "6"] [White "Meier, Georg"] [Black "So, Wesley"] [Result "1/2-1/2"] [WhiteElo "2654"] [BlackElo "2778"] [ECO "D11"] [Opening "QGD Slav"] [Variation "4.e3"] [EventDate "2015.06.27"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. Nc3 e6 6. h3 Bh5 7. g4 Bg6 8. Ne5 Nbd7 9. Nxg6 hxg6 10. g5 Ng8 11. h4 Ne7 12. Bd2 Nf5 13. Qg4 Be7 14. Rh3 Rh5 15. O-O-O Qc7 16. Kb1 dxc4 17. Bxc4 O-O-O 18. Ne2 c5 19. Bb3 Kb8 20. Bc3 Rdh8 21. Rdh1 Bd6 22. dxc5 Be5 23. e4 Bxc3 24. Rxc3 Rxh4 25. Rch3 Rxh3 26. Rxh3 Rxh3 27. Qxh3 Ne7 28. Qh8+ Nc8 29. Qxg7 Nxc5 30. Bc2 Qe7 31. f4 a6 32. Nc3 Nd7 33. e5 Qf8 34. Qxf8 Nxf8 35. Be4 Nd7 36. Kc2 Ne7 37. Bf3 Kc7 38. Kd3 b5 39. b4 Nb6 40. Kd4 Nf5+ 41. Kd3 Ne7 42. Kd4 Nf5+ 43. Kd3 1/2-1/2 

 

  


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