Puzzle 302800: Zwart naar Verdedigen en winnen

O. Allanepesova - Evgenia Guseva
14th Soviet TCh final C Moscow URS (5), 1979
  1. 1.d4
  2. Nf6
  3. 2.c4
  4. d5
  5. 3.Nc3
  6. e6
  7. 4.Nf3
  8. c6
  9. 5.g3
  10. dxc4
  11. 6.Ne5
  12. b5
  13. 7.Bg2
  14. Qb6
  15. 8.O-O
  16. Bb7
  17. 9.e4
  18. Nbd7
  19. 10.Be3
  20. Qc7
  21. 11.Bf4
  22. Bd6
  23. 12.Nxd7
  24. Nxd7
  25. 13.e5
  26. Be7
  27. 14.Qg4
  28. g6
  29. 15.Bh6
  30. a6
  31. 16.Bg7
  32. Rg8
  33. 17.Bh6
  34. c5
  35. 18.Bxb7
  36. Qxb7
  37. 19.Be3
  38. O-O-O
  39. 20.Ne4
  40. cxd4
  41. 21.Bxd4
  42. Qd5
  43. 22.Nc3
  44. Qc6
  45. 23.b3
  46. b4
  47. 24.Na4
  48. c3
  49. 25.Rac1
  50. Kb7
  51. 26.Qf4
  52. Rgf8
  53. 27.Qe3
  54. f6
  55. 28.exf6
  56. Nxf6
  57. 29.Rfe1
  58. Rf7
  59. 30.Bc5
  60. Rd2
  61. 31.Bxe7
  62. Rxe7
  63. 32.Qf4
    1. Oplossing:32.Qf4
      1. Dreigend:
      2. 33.Qxb4+
        1. 33.Qxf6
      3. 33...Ka8
      4. 34.Qxe7
    2. Nd5 Black is winning. White's better king safety is not enough compensation for Black's passed pawn(s), material advantage and piece activity.
      1. Niet32...Rf7 vanwege
      2. 33.Rxe6
      3. Qc8
      4. 34.Qxb4+
      5. Ka7
      6. 35.Qb6+
      7. Ka8
      8. 36.Rxf6
      9. Rxf6
      10. 37.Qxf6
    3. Nu als33.Qxb4+
    4. Nxb4
  64. 32...Nd5
  65. 33.Qf3
  66. Rxa2
  67. 34.Re4
  68. Rxa4
  69. 35.bxa4
  70. Qxa4
  71. 36.Rb1
  72. a5
  73. 37.Ree1
  74. Qc6
  75. 38.Rec1
  76. Ka7
  77. 39.Qe4
  78. Qc5
  79. 40.Qc2
  80. Rf7
  81. 41.Rf1
  82. Nb6
  83. 42.Ra1
  84. Nc4
  85. 43.Qb3
  86. Rf5
  87. 44.Qa4
  88. Qd5
  89. 45.Qxb4
  90. Nd2
  91. 46.f4
  92. Nxf1
  93. 47.Qxc3
  94. Nd2
  95. 48.Qc7+
  96. Ka6
  97. 49.Qc8+
  98. Qb7
  99. 50.Qxe6+
  100. Qb6+
  101. 51.Qxb6+
  102. Kxb6
  103. 52.Rd1
  104. Rd5
  105. 53.Kg2
  106. a4
  107. 54.Re1
  108. Rd7
  109. 55.g4
  110. a3
  111. 56.f5
  112. gxf5
  113. 57.gxf5
  114. Kb5
  115. 58.f6
  116. Rf7
  117. 59.Re6
  118. a2
  119. 60.Re5+
  120. Kb4
  121. 61.Re7
  122. Rxf6
0-1
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