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問題 161869: 黒 が 防御とするために

GM Alexander Zubov (2589) - GM Andrei Deviatkin (2436)
Titled Tuesday 30th July chess.com INT (9), 2020.07.07
  2. 1.d4
  3. d5
  4. 2.Nf3
  5. Nf6
  6. 3.c4
  7. c6
  8. 4.Qb3
  9. Qb6
  10. 5.Nc3
  11. Be6
  12. 6.c5
  13. Qc7
  14. 7.Bf4
  15. Qc8
  16. 8.h3
  17. g6
  18. 9.e3
  19. Bg7
  20. 10.Bd3
  21. O-O
  22. 11.Qc2
  23. b6
  24. 12.b4
  25. a5
  26. 13.Na4
  27. Nbd7
  28. 14.Nxb6
  29. Nxb6
  30. 15.cxb6
  31. axb4
  32. 16.O-O
  33. Nd7
  34. 17.Rfb1
  35. Nxb6
  36. 18.Rxb4
  37. Nc4
  38. 19.a4
  39. c5
  40. 20.Rbb1
  41. cxd4
  42. 21.exd4
  43. Ra7
  44. 22.Rb4
  45. Bf5
  46. 23.Bxf5
  47. Qxf5
  48. 24.Qxf5
  49. gxf5
  50. 25.Bb8
  51. Ra6
  52. 26.Rb5
  53. e6
  54. 27.a5
  55. Rxa5
  56. 28.Rbxa5
  57. Nxa5
  58. 29.Bd6
  59. Rd8
  60. 30.Bc7
  61. Nb3
  62. 31.Ra3
    1. 解決策:31.Ra3
      1. 脅威を与える:
      2. 32.Bxd8
        1. 32.Rxb3
    3. Rc8
    4. 32.Rxb3
      1. さて、もし32.Bd8
      2. Nxd4
    6. 32...Rxc7
  64. 31...Rc8
  65. 32.Bb6
  66. Nc1
  67. 33.Kf1
  68. Bf8
  69. 34.Ra7
  70. f6
  71. 35.g4
  72. fxg4
  73. 36.hxg4
  74. h6
  75. 37.Nh4
  76. Nd3
  77. 38.Ng6
  78. Rb8
  79. 39.Bc7
  80. Rc8
  81. 40.Bg3
  82. Re8
  83. 41.Rd7
  84. Nb2
  85. 42.Bh4
  86. Bg7
  87. 43.Ne7+
  88. Kf8
  89. 44.Ng6+
  90. Kg8
  91. 45.Ke2
  92. Nc4
  93. 46.f4
  94. e5
  95. 47.dxe5
  96. fxe5
  97. 48.f5
  98. Ra8
  99. 49.f6
  100. Ra2+
  101. 50.Ke1
  102. Ra1+
  103. 51.Kf2
  104. Ra2+
  105. 52.Ke1
  106. Ra1+
  107. 53.Ke2
  108. Ra2+
  109. 54.Kd3
  110. e4+
  111. 55.Kc3
  112. Ra3+
  113. 56.Kb4
  114. Bf8+
  115. 57.Nxf8
  116. Kxf8
  117. 58.Rxd5
1-0
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