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Puzzle 863073: Beoordeel (Zwart aan zet)

R. Vera (2530) - K. Neven (2245)
Canadian Open Winnipeg CAN (9), 1997.07.19
  2. 1.Nf3
  3. Nf6
  4. 2.c4
  5. g6
  6. 3.Nc3
  7. Bg7
  8. 4.e4
  9. d6
  10. 5.d4
  11. O-O
  12. 6.Be2
  13. e5
  14. 7.O-O
  15. Nc6
  16. 8.d5
  17. Ne7
  18. 9.b4
  19. Ne8
  20. 10.c5
  21. f5
  22. 11.a4
  23. h6
  24. 12.Nd2
  25. Nf6
  26. 13.f3
  27. f4
  28. 14.Ba3
  29. g5
  30. 15.b5
  31. Ne8
  32. 16.a5
  33. dxc5
  34. 17.Bxc5
  35. Rf6
  36. 18.Nc4
  37. Rg6
  38. 19.Qb3
    1. Oplossing:19.Qb3 White is winning because of White's piece activity en better pawn structure.
    2. Kh7 Score 2.65, Depth 27, Stockfish 15.1 NNUE
      1. 19...g4 Score 2.9, Depth 27, Stockfish 15.1 NNUE
  40. 19...Kh7
  41. 20.b6
  42. Ng8
  43. 21.Nb5
  44. axb6
  45. 22.axb6
  46. Rxa1
  47. 23.Rxa1
  48. cxb6
  49. 24.Bf2
  50. g4
  51. 25.fxg4
  52. Bxg4
  53. 26.Bxg4
  54. Rxg4
  55. 27.Bxb6
  56. Qd7
  57. 28.Rb1
  58. Ne7
  59. 29.Bf2
  60. Ng6
  61. 30.Qf3
  62. Nf6
  63. 31.h3
  64. Rg5
  65. 32.Nbd6
  66. Qa4
  67. 33.Rxb7
  68. Qa1+
  69. 34.Kh2
  70. h5
  71. 35.Nf7
  72. Ng4+
  73. 36.hxg4
  74. Rxg4
  75. 37.Qh3
  76. Nh4
  77. 38.Bxh4
  78. f3
  79. 39.Ng5+
  80. Kg8
  81. 40.Rb8+
  82. Bf8
  83. 41.Nxf3
1-0
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