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問題 836509: 黒 が チェックメイトとするために

IM Timofey Iljin (2337) - IM Gianmarco Leiva (2381)
Titled Tue 3rd Jan Early chess.com INT (7), 2023.01.03
  2. 1.e4
  3. c5
  4. 2.c3
  5. Nf6
  6. 3.e5
  7. Nd5
  8. 4.d4
  9. cxd4
  10. 5.cxd4
  11. d6
  12. 6.Nf3
  13. Nc6
  14. 7.Bc4
  15. dxe5
  16. 8.dxe5
  17. Ndb4
  18. 9.Qb3
  19. e6
  20. 10.O-O
  21. Bd7
  22. 11.Bg5
  23. Be7
  24. 12.Bxe7
  25. Qxe7
  26. 13.a3
  27. Na5
  28. 14.Qxb4
  29. Qxb4
  30. 15.axb4
  31. Nxc4
  32. 16.b3
  33. Nb6
  34. 17.Nc3
  35. Ke7
  36. 18.Ne4
  37. Nd5
  38. 19.Nd6
  39. Nxb4
  40. 20.Nxb7
  41. Bc6
  42. 21.Nd6
  43. Bxf3
  44. 22.gxf3
  45. Nd3
  46. 23.Ra5
  47. Nxe5
  48. 24.Ne4
  49. Nxf3+
  50. 25.Kg2
  51. Nd4
  52. 26.Rfa1
  53. Nc6
  54. 27.Ra6
  55. Rhc8
  56. 28.Rc1
  57. Kd7
  58. 29.Nc5+
  59. Ke7
  60. 30.Ne4
  61. f5
  62. 31.Ng5
  63. Nd4
  64. 32.Rd1
  65. Rc6
  66. 33.Ra3
  67. h6
  68. 34.Nh3
  69. Nb5
  70. 35.Ra4
  71. Nc7
  72. 36.Nf4
  73. g5
  74. 37.Ne2
  75. Rb6
  76. 38.b4
  77. Nd5
  78. 39.b5
  79. Rxb5
  80. 40.Nd4
  81. Rc5
  82. 41.Rda1
  83. Kf6
  84. 42.Ra6
  85. Nf4+
  86. 43.Kh1
  87. Rd8
  88. 44.Nc6
  89. Rc8
  90. 45.Nxa7
    1. 解決策:45.Nxa7
    2. Rc1+
    3. 46.Rxc1
    4. Rxc1# アナスタシアの詰め
  92. 45...Rc1+
  93. 46.Rxc1
  94. Rxc1#
0-1

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