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問題 215685: 黒 が 防御とするために

Mikhail Popov (2327) - Sumiya Bilguun (2343)
54th World U20 ch Khanty-Mansiysk RUS, 2015.09.13
  2. 1.d4
  3. d5
  4. 2.c4
  5. e6
  6. 3.Nf3
  7. c6
  8. 4.Nc3
  9. dxc4
  10. 5.e3
  11. b5
  12. 6.a4
  13. Bb4
  14. 7.Bd2
  15. a5
  16. 8.axb5
  17. Bxc3
  18. 9.Bxc3
  19. cxb5
  20. 10.b3
  21. Bb7
  22. 11.bxc4
  23. b4
  24. 12.Bb2
  25. Nf6
  26. 13.Bd3
  27. O-O
  28. 14.O-O
  29. Nbd7
  30. 15.Nd2
  31. Bc6
  32. 16.Bc2
  33. Qc7
  34. 17.e4
  35. e5
  36. 18.f4
  37. exd4
  38. 19.e5
  39. Qb6
  40. 20.Bf5
  41. Ne8
  42. 21.Ne4
  43. d3+
  44. 22.Kh1
  45. Nc5
  46. 23.Nxc5
  47. Qxc5
  48. 24.Qxd3
  49. g6
  50. 25.Bd4
    1. 解決策:25.Bd4
      1. 脅威を与える:
      2. 26.Bxc5
    3. Qe7
    4. さて、もし26.Bc5
    5. Qxc5
  52. 25...Qe7
  53. 26.Bh3
  54. Ng7
  55. 27.Qe3
  56. Qh4
  57. 28.e6
  58. Rfe8
  59. 29.f5
  60. gxf5
  61. 30.Bxf5
  62. Nxe6
  63. 31.Bf6
  64. Nf8
  65. 32.Qxe8
  66. Qxf6
  67. 33.Qe2
  68. Qg7
  69. 34.Bh3
  70. a4
  71. 35.Qe7
  72. b3
  73. 36.Qb4
  74. Ng6
  75. 37.c5
  76. Ne5
  77. 38.Rfd1
  78. Nd3
  79. 39.Qb6
  80. Nf2+
  81. 40.Kg1
  82. Nxh3+
0-1

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