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問題 269566: 白 が 防御とするために

WFM Srishti Pandey (2026) - WGM Olga Babiy (2300)
Titled Tuesday 16th Mar chess.com INT (8), 2021.03.16
  2. 1.e4
  3. e5
  4. 2.Nc3
  5. d6
  6. 3.Nb1
  7. Nf6
  8. 4.Nc3
  9. Be7
  10. 5.Be2
  11. c5
  12. 6.Bc4
  13. Nc6
  14. 7.d3
  15. O-O
  16. 8.f4
  17. a6
  18. 9.f5
  19. b5
  20. 10.Bd5
  21. Bb7
  22. 11.Nf3
  23. b4
  24. 12.Ne2
  25. Nxd5
  26. 13.exd5
  27. Nd4
  28. 14.Nexd4
  29. cxd4
  30. 15.O-O
  31. Bxd5
  32. 16.Qe1
  33. Rc8
  34. 17.Qg3
  35. Rxc2
  36. 18.Bh6
  37. Bf6
  38. 19.Ne1
  39. Kh8
  40. 20.Bxg7+
  41. Bxg7
  42. 21.Nxc2
  43. Bh6
  44. 22.Qh3
  45. Rg8
    1. 解決策:22...Rg8
      1. 脅威を与える:
      2. 23...Rxg2+
      3. 24.Qxg2
      4. Bxg2
      5. 25.Kxg2
      6. Qg5+
      7. 26.Kh1
      8. Qd2
      9. 27.Ne1
      10. Qe2
      11. 28.Nf3
      12. Qxd3
    3. 23.Rf2
    4. Bg5
      1. さて、もし23...Rxg2+
      2. 24.Rxg2
    6. 24.Nxb4
  47. 23.Rf2
  48. Qf6
  49. 24.Nxb4
  50. Bb7
  51. 25.Nc2
  52. Bf4
  53. 26.g3
  54. Bg5
  55. 27.Re1
  56. Rc8
  57. 28.Qf1
  58. Bd5
  59. 29.b3
  60. a5
  61. 30.Qe2
  62. Rc5
  63. 31.Rd1
  64. Kg7
  65. 32.h4
  66. Bh6
  67. 33.Kh2
  68. Kf8
  69. 34.Re1
  70. Qd8
  71. 35.Qh5
  72. Bg7
  73. 36.f6
  74. Bxf6
  75. 37.Ref1
  76. Qc7
  77. 38.Ne1
  78. Bg7
  79. 39.Qxh7
  80. Rc1
  81. 40.Ng2
  82. Rc2
  83. 41.h5
  84. Rxf2
  85. 42.Rxf2
  86. Qc1
  87. 43.a4
  88. Bh6
  89. 44.Qh8+
  90. Ke7
  91. 45.Qf6+
  92. Kd7
  93. 46.Qf5+
  94. Ke7
  95. 47.Qf6+
  96. Kd7
  97. 48.Qf5+
  98. Kc7
  99. 49.Qh7
  100. Be3
  101. 50.Rxf7+
  102. Kb6
  103. 51.Nxe3
  104. Qh1#
0-1
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