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Puzzle 862324: Zwart naar Verdedig

Vasu Sanjay (1508) - Leah Rice (1403)
74th ch-SGP 2023 Singapore SIN, 2023.02.11
  2. 1.e4
  3. c6
  4. 2.d4
  5. d5
  6. 3.exd5
  7. cxd5
  8. 4.c4
  9. Nf6
  10. 5.Nc3
  11. e6
  12. 6.Nf3
  13. Be7
  14. 7.a3
  15. a5
  16. 8.cxd5
  17. Nxd5
  18. 9.Bd3
  19. O-O
  20. 10.Qc2
  21. Nf6
  22. 11.g4
  23. h6
  24. 12.Rg1
  25. Nc6
  26. 13.g5
  27. hxg5
  28. 14.Bxg5
  29. Nxd4
  30. 15.Nxd4
  31. Qxd4
  32. 16.O-O-O
  33. Qe5
  34. 17.Rde1
  35. Qc7
  36. 18.Bh6
  37. Ne8
  38. 19.Qd2
  39. Bf6
  40. 20.Rg2
  41. b6
  42. 21.Reg1
  43. Bb7
  44. 22.Rxg7+
  45. Nxg7
  46. 23.Bxg7
    1. Oplossing:23.Bxg7
      1. Dreigend:
      2. 24.Bxf6+
      3. Qg3
      4. 25.Rxg3#
    3. Qxh2 De zwarte dame valt de toren van wit aan, die het veld h1 verdedigt.
      1. Niet23...Bxg7 vanwege
      2. 24.Rxg7+
      3. Kxg7
      4. 25.Qg5+
      5. Kh8
      6. 26.Qh6+
      7. Kg8
      8. 27.Qh7#
    5. 24.Rg5
      1. Nu als24.Bxf6+
      2. Qxg1+
    7. 24...Qh1+
      1. 24...Bxg7
      2. 25.Rxg7+
      3. Kxg7
        1. 25...Kh8
        2. 26.Rh7+
        3. Qxh7
        4. 27.Bxh7
        5. Kxh7
      5. 26.Qg5+
      6. Kh8
      7. 27.Qf6+
      8. Kg8
      9. 28.Qg5+
      10. Kh8
      11. 29.Qf6+
      12. Kg8
      13. 30.Qg5+
      14. Kh8 Remise door herhaling
    9. 25.Kc2
    10. Bxg7
    11. 26.Rxg7+
    12. Kxg7
    13. 27.Qg5+
    14. Kh8
    15. 28.Qf6+
    16. Kg8
    17. 29.Qg5+
    18. Kh8
    19. 30.Qf6+
    20. Kg8
    21. 31.Qg5+
    22. Kh8 Remise door herhaling
  48. 23...Qxh2
  49. 24.Rg4
  50. Qh1+
  51. 25.Kc2
  52. Bxg7
  53. 26.Qg5
  54. Qh8
  55. 27.Rh4
  56. Qxh4
  57. 28.Qxh4
  58. f5
  59. 29.Qe7
  60. Bd5
  61. 30.Nxd5
  62. exd5
  63. 31.Qe6+
  64. Kh8
  65. 32.Qxd5
  66. Rac8+
  67. 33.Kb3
  68. a4+
  69. 34.Kxa4
  70. Bxb2
  71. 35.Bxf5
  72. Ra8+
  73. 36.Kb3
  74. Bxa3
  75. 37.Qe5+
  76. Kg8
  77. 38.Qe6+
  78. Rf7
  79. 39.Bg6
  80. Raa7
  81. 40.Bxf7+
  82. Rxf7
  83. 41.Kxa3
  84. Kf8
  85. 42.Qxb6
  86. Rf3+
  87. 43.Kb2
  88. Rf7
  89. 44.Qd6+
  90. Ke8
  91. 45.f4
  92. Rb7+
  93. 46.Kc3
  94. Rf7
  95. 47.Kd4
  96. Rd7
  97. 48.Qxd7+
  98. Kxd7
  99. 49.Kd5
  100. Ke7
  101. 50.Ke5
  102. Kf7
  103. 51.Kf5
  104. Kf8
  105. 52.Kf6
  106. Kg8
  107. 53.Ke7
1-0
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