侯逸凡 (Hóu Yìfán) – Humpy Koneru
Women’s World Chess Championship Knockout Tournament; match game 1; Antakya, December 16, 2010
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5
Nf5 8. Qxd8+ Kxd8 9. Nc3 Ke8
This is the basic position of the main line of the Berlin Defense — after only nine moves we are already in an endgame. Against the White Kingside Pawn majority and Black’s loss of castling rights, Black has the Bishop pair.
10. Ne2. An uncommon continuation that presumably targets the usual ... Bc8-e6 setup.
10. ... Be7. Also possible is 10. ... Bc5.
11. b3 a5 12. a4 Be6 13. Bb2 h5 14. Nfd4 Nxd4 15. Nxd4 Rd8 16. Nxe6 fxe6. Black gives up the Bishop pair intentionally with the hope of blockading the White Pawn majority.
17. Rad1 Kf7 18. g3 Bb4. Possibly 18. ... g6.
19. Kg2 Bd2 20. Kf3 Rd5 21. Ke2 Rhd8 22. c4 R5d7 23. Bc1 Bc3. The Rook ending may have been a better choice for Black. Usually any trade of pieces brings White closer to her own strategic aim.
24. Rxd7+ Rxd7 25. f4 g6? Interesting is 25. ... Kg6!?.
(RR 25. ... Kg6! 26. h3 Kf5 27. Ke3 c5 — Anish Giri)
26. Rf3 Bb4 (RR 26. ... Bd4 27. Rd3 Δ Bc1-e3, Ke2-f3-e4)
27. Rd3 Rxd3 28. Kxd3 Be7. This avoids the Pawn-ending that would have appeared after 29. Bd2, but in any case Black was too optimistic about her chances in the Bishop ending.
29. Be3 c5 30. Ke4 b6 31. Kf3 Bf8 [RR 31. ... Bd8!? 32. Kg2!! (32. Bf2 g5!; 32. g4 Bh4!) 32. ... Be7 33. Kh3! Ke8 34. g4+− — Giri]
32. g4! Be7 33. Kg3 c6 34. Kh3! Bd8 35. Bf2 Bc7 36. Bh4 hxg4+ 37. Kxg4 Kg7 38. Bf6+ Kf7 39. Bh4 Kg7 40. Bf6+ Kf7 41. Kg5 b5. Temporarily helping the passive Bishop since after 42. axb5 cxb5 43. cxb5 Bb6, ... c5-c4 is on the horizon.
42. Kh6 bxa4 43. bxa4 Bb6
10. Ne2. An uncommon continuation that presumably targets the usual ... Bc8-e6 setup.
10. ... Be7. Also possible is 10. ... Bc5.
11. b3 a5 12. a4 Be6 13. Bb2 h5 14. Nfd4 Nxd4 15. Nxd4 Rd8 16. Nxe6 fxe6. Black gives up the Bishop pair intentionally with the hope of blockading the White Pawn majority.
17. Rad1 Kf7 18. g3 Bb4. Possibly 18. ... g6.
19. Kg2 Bd2 20. Kf3 Rd5 21. Ke2 Rhd8 22. c4 R5d7 23. Bc1 Bc3. The Rook ending may have been a better choice for Black. Usually any trade of pieces brings White closer to her own strategic aim.
24. Rxd7+ Rxd7 25. f4 g6? Interesting is 25. ... Kg6!?.
(RR 25. ... Kg6! 26. h3 Kf5 27. Ke3 c5 — Anish Giri)
26. Rf3 Bb4 (RR 26. ... Bd4 27. Rd3 Δ Bc1-e3, Ke2-f3-e4)
27. Rd3 Rxd3 28. Kxd3 Be7. This avoids the Pawn-ending that would have appeared after 29. Bd2, but in any case Black was too optimistic about her chances in the Bishop ending.
29. Be3 c5 30. Ke4 b6 31. Kf3 Bf8 [RR 31. ... Bd8!? 32. Kg2!! (32. Bf2 g5!; 32. g4 Bh4!) 32. ... Be7 33. Kh3! Ke8 34. g4+− — Giri]
32. g4! Be7 33. Kg3 c6 34. Kh3! Bd8 35. Bf2 Bc7 36. Bh4 hxg4+ 37. Kxg4 Kg7 38. Bf6+ Kf7 39. Bh4 Kg7 40. Bf6+ Kf7 41. Kg5 b5. Temporarily helping the passive Bishop since after 42. axb5 cxb5 43. cxb5 Bb6, ... c5-c4 is on the horizon.
42. Kh6 bxa4 43. bxa4 Bb6
44. Be7. This idea could work, but it must be prepared via 44. h3 Bc7 45. h4 Bb6, while 44.
h4! Bc7 45. Kg5 Bb6 46. f5! exf5 47. h5 gxh5 48. Kxf5 Ke8 49. Kg6 etc. was a possible winning breakthrough.
44. ... Bc7? Misses an escape chance. Better to ask for proof than endure torture. 44. ... Kxe7 45. Kxg6 Bd8 46. h4 Kf8 47. h5 Kg8 48. h6 Bh4 49. h7+ Kh8 50. Kf7 Kxh7 51. Kxe6. At this point we can see that White would win with the extra tempo (44. h4) if she could play 51. Kf7, but now after 51. ... Kg7 Black has good drawing chances.
45. Bxc5 Bd8 46. Bf2 Be7 47. c5 Bf8+ 48. Kg5 Be7+ 49. Kg4 Ke8 50. Be1 Bxc5 51. Bxa5 Be7 52. Kf3. Or 52. h4.
52. ... Kd7 53. Ke4 c5 54. Kd3 Kc6 55. Kc4 Bh4 56. Bd2 Bf2 57. h3 Bg1 58. Bc1 Bf2 59. Bd2 Bg1 60. Kd3. Better is 60. a5!.
60. ... Bf2 61. Be3 Be1 62. Kc4 Bb4 63. Bf2 Kb6 64. Be3 Kc6 65. Bg1 Kb6 66. Bf2 Kc6 67. Bh4 Bd2 68. Bg5 Be1 69. Be7 Bf2 70. a5! Be3 71. Bg5 Bf2. No other move could have helped since a5-a6 is coming sooner or later.
72. h4 Bg3 73. a6 Bf2 74. h5! At long last! This Bishop ending took longer than was necessary.
74. ... gxh5 75. f5 exf5 76. e6 Bg3 77. e7 Kd7 78. a7 1 : 0.
44. ... Bc7? Misses an escape chance. Better to ask for proof than endure torture. 44. ... Kxe7 45. Kxg6 Bd8 46. h4 Kf8 47. h5 Kg8 48. h6 Bh4 49. h7+ Kh8 50. Kf7 Kxh7 51. Kxe6. At this point we can see that White would win with the extra tempo (44. h4) if she could play 51. Kf7, but now after 51. ... Kg7 Black has good drawing chances.
45. Bxc5 Bd8 46. Bf2 Be7 47. c5 Bf8+ 48. Kg5 Be7+ 49. Kg4 Ke8 50. Be1 Bxc5 51. Bxa5 Be7 52. Kf3. Or 52. h4.
52. ... Kd7 53. Ke4 c5 54. Kd3 Kc6 55. Kc4 Bh4 56. Bd2 Bf2 57. h3 Bg1 58. Bc1 Bf2 59. Bd2 Bg1 60. Kd3. Better is 60. a5!.
60. ... Bf2 61. Be3 Be1 62. Kc4 Bb4 63. Bf2 Kb6 64. Be3 Kc6 65. Bg1 Kb6 66. Bf2 Kc6 67. Bh4 Bd2 68. Bg5 Be1 69. Be7 Bf2 70. a5! Be3 71. Bg5 Bf2. No other move could have helped since a5-a6 is coming sooner or later.
72. h4 Bg3 73. a6 Bf2 74. h5! At long last! This Bishop ending took longer than was necessary.
74. ... gxh5 75. f5 exf5 76. e6 Bg3 77. e7 Kd7 78. a7 1 : 0.
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