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問題 544310: 黒 が 防御とするために

IM Michael Song (2410) - GM Alexandra Kosteniuk (2516)
Titled Tuesday 18th Jan chess.com INT (4), 2022.01.18
  2. 1.e4
  3. c6
  4. 2.d4
  5. d5
  6. 3.exd5
  7. cxd5
  8. 4.Bd3
  9. Nc6
  10. 5.c3
  11. Nf6
  12. 6.Bf4
  13. Bg4
  14. 7.Qb3
  15. Qd7
  16. 8.h3
  17. Bh5
  18. 9.Nd2
  19. e6
  20. 10.Ngf3
  21. Bxf3
  22. 11.Nxf3
  23. Bd6
  24. 12.Ne5
  25. Qc7
  26. 13.O-O
  27. Bxe5
  28. 14.dxe5
  29. Nd7
  30. 15.Rae1
  31. O-O
  32. 16.Bb5
  33. f5
  34. 17.exf6
  35. Qxf4
  36. 18.fxg7
  37. Rf7
  38. 19.Bxc6
  39. bxc6
  40. 20.Qb7
  41. Re8
  42. 21.Qxc6
  43. Rfe7
  44. 22.Re3
  45. Ne5
  46. 23.Qb5
  47. Ng6
  48. 24.g3
  49. Qc4
  50. 25.Qxc4
  51. dxc4
  52. 26.Rd1
  53. Kxg7
  54. 27.Rd4
  55. Rc8
  56. 28.Ree4
  57. Rb8
  58. 29.Rd2
  59. Rb6
  60. 30.Rxc4
  61. Ne5
  62. 31.Rf4
  63. Rf7
  64. 32.Rxf7+
  65. Kxf7
  66. 33.Kg2
  67. Nc4
  68. 34.Rd4
  69. Ne5
  70. 35.b4
  71. Kf6
  72. 36.f4
  73. Nf7
  74. 37.a3
  75. Rc6
  76. 38.c4
  77. a6
  78. 39.c5
  79. Ke7
  80. 40.Kf3
  81. Rc8
  82. 41.g4
  83. a5
  84. 42.Ke4
  85. axb4
  86. 43.axb4
  87. Nd8
  88. 44.Kd3
  89. Nc6
  90. 45.Re4
  91. Rd8+
  92. 46.Kc4
  93. Rd1
  94. 47.b5
  95. Rc1+
  96. 48.Kb3
  97. Na5+
  98. 49.Kb4
    1. 解決策:49.Kb4
      1. 脅威を与える:
      2. 50.Kxa5
    3. Nb7
      1. この手は...49...Ra1 のために
      2. 50.f5
      3. Kf7
      4. 51.fxe6+
      5. Ke7
      6. 52.c6
      7. Ra2
      8. 53.c7
      9. Rc2
      10. 54.Kxa5
    5. 50.c6
    6. Rb1+
      1. 50...Nd6
  100. 49...Nb7
  101. 50.c6
  102. Nd6
  103. 51.Re5
  104. Rb1+
  105. 52.Kc5
  106. Rxb5+
  107. 53.Kd4
  108. Rb4+
  109. 54.Kc5
  110. Rc4+
  111. 55.Kb6
  112. Rc3
  113. 56.Rc5
  114. Rb3+
  115. 57.Ka6
  116. Ra3+
  117. 58.Kb6
  118. Rb3+
  119. 59.Ka6
  120. Nc8
  121. 60.c7
  122. Kd6
  123. 61.Rh5
  124. Kc6
  125. 62.Rxh7
  126. Ra3#
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