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問題 881288: 黒 が 勝ちとするために

FM V. Shapiro (2192) - WFM Nguyen Hong Nhung (2003)
Titled Tue 14th Feb Early chess.com INT (10), 2023.02.14
  2. 1.c4
  3. f5
  4. 2.Nc3
  5. Nf6
  6. 3.g3
  7. e5
  8. 4.Bg2
  9. d6
  10. 5.d3
  11. g6
  12. 6.Nf3
  13. Bg7
  14. 7.O-O
  15. O-O
  16. 8.Rb1
  17. Nc6
  18. 9.b4
  19. h6
  20. 10.b5
  21. Ne7
  22. 11.c5
  23. g5
  24. 12.cxd6
  25. cxd6
  26. 13.Qb3+
  27. Kh7
  28. 14.e4
  29. Ng6
  30. 15.Bxg5
  31. hxg5
  32. 16.Nxg5+
  33. Kh6
  34. 17.Nf7+
  35. Rxf7
  36. 18.Qxf7
  37. f4
  38. 19.Nd5
  39. Nxd5
  40. 20.exd5
  41. Bd7
  42. 21.Be4
  43. Be8
  44. 22.Qxb7
  45. Rb8
  46. 23.Qxa7
  47. Qc8
  48. 24.Rfc1
  49. Qb7
  50. 25.Qxb7
  51. Rxb7
  52. 26.a4
  53. Kg5
  54. 27.Rc8
  55. Bd7
  56. 28.Rg8
  57. Kf6
  58. 29.h4
  59. Ne7
  60. 30.Ra8
  61. fxg3
  62. 31.fxg3
  63. Bh6
  64. 32.Rf1+
  65. Kg7
  66. 33.Kg2
  67. Nc8
  68. 34.Bf5
  69. Nb6
  70. 35.Ra6
  71. Nxd5
  72. 36.Bxd7
  73. Ne3+
  74. 37.Kh3
  75. Nxf1
  76. 38.Bc6
  77. Rf7
  78. 39.g4
  79. Be3
  80. 40.g5
  81. Rf2
  82. 41.b6
  83. Bf4
  84. 42.b7
    1. 解決策:42.b7
    2. Ne3 メート網
    3. 43.b8=R
      1. 43.Bg2
      2. Rxg2
      3. 44.b8=Q
      4. Rh2#
      1. 43.b8=Q
      2. Rh2#
    5. 43...Rh2# オペラ・メイト
  86. 42...Ne3
  87. 43.Bg2
  88. Rxg2
0-1

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