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Puzzle 667455: Les noirs gagnent la finale

GM G. Flear (2409) - GM JM Degraeve (2519)
28th Saint-Affrique Open Saint-Affrique FRA, 2022.07.29
  2. 1.d4
  3. d5
  4. 2.c4
  5. e6
  6. 3.Cc3
  7. c5
  8. 4.cxd5
  9. exd5
  10. 5.Cf3
  11. Cf6
  12. 6.g3
  13. Cc6
  14. 7.Fg2
  15. cxd4
  16. 8.Cxd4
  17. Fc5
  18. 9.Cb3
  19. Fb6
  20. 10.O-O
  21. d4
  22. 11.Ca4
  23. O-O
  24. 12.Cxb6
  25. axb6
  26. 13.Fg5
  27. Te8
  28. 14.Fxc6
  29. bxc6
  30. 15.Dxd4
  31. Dxd4
  32. 16.Cxd4
  33. c5
  34. 17.Fxf6
  35. gxf6
  36. 18.Cb5
  37. Txe2
  38. 19.Tfe1
  39. Txa2
  40. 20.Cc3
  41. Txe1+
  42. 21.Txe1
  43. Ta8
  44. 22.Cd5
  45. Fe6
  46. 23.Cxf6+
  47. Rg7
  48. 24.Ch5+
  49. Rg6
  50. 25.Cf4+
  51. Rf5
  52. 26.Cxe6
  53. fxe6
  54. 27.g4+
  55. Rxg4
  56. 28.Txe6
  57. b5
  58. 29.Te5
  59. Ta1+
  60. 30.Rg2
  61. Tc1
  62. 31.b4
  63. Rf4
  64. 32.Th5
  65. c4
  66. 33.Txb5
  67. c3
  68. 34.Tc5
  69. Re4
  70. 35.Tc7
  71. Rd3
  72. 36.Td7+
  73. Rc2
  74. 37.Txh7
  75. Tb1
  76. 38.Tc7
  77. Txb4
  78. 39.Rf3
  79. Rb2
  80. 40.Re3
  81. c2
  82. 41.f4
  83. c1=Q+
  84. 42.Txc1
  85. Rxc1
  86. 43.h4
  87. Rd1
  88. 44.h5
  89. Tb8
  90. 45.Re4
  91. Re2
  92. 46.f5
  93. Th8
  94. 47.Rd5
    1. Solution:47.Rd5
    2. Rf3
    3. 48.f6
      1. 48.Rd6
      2. Rg4
      3. 49.f6
      1. 48.Re6
      2. Rg4
      3. 49.f6
      1. 48.Rc6 with a winning endgame, for example:
      2. Txh5
      3. 49.f6
      4. Tf5
      5. 50.Rd6
      6. Txf6+
    5. 48...Rg4
    6. 49.Rd6
      1. 49.Re6
      2. Rxh5
      3. 50.Rf7
      4. Rh6
      5. 51.Re7 with a winning endgame, for example:
      6. Rg6
      7. 52.f7
      8. Th7
      9. 53.Rd6
      10. Rxf7
      1. 49.Re5
      2. Rxh5
      3. 50.Rd6
      4. Rg6
      5. 51.Re7
      6. Tb8
      7. 52.f7
      8. Tb7+
      9. 53.Rd6
      10. Txf7
      1. 49.Rc6 with a winning endgame, for example:
      2. Rxh5
      3. 50.Rd6
      4. Rg6
      5. 51.Re7
      6. Tb8
      7. 52.f7
      8. Tb7+
      9. 53.Rd6
      10. Txf7
    8. 49...Rxh5
    9. 50.f7
      1. 50.Rd7 with a winning endgame, for example:
      2. Rg6
      3. 51.Re7
      4. Tb8
      5. 52.f7
      6. Tb7+
      7. 53.Rd6
      8. Txf7
      1. 50.Re6 with a winning endgame, for example:
      2. Rg6
      3. 51.f7
      4. Tf8
      5. 52.Rd6
      6. Txf7
      1. 50.Re7
      2. Rg6
      3. 51.f7
    11. 50...Rg6
      1. 50...Rh6
      2. 51.Re7
        1. 51.Re6 with a winning endgame, for example:
        2. Rg6
        3. 52.Re7
        4. Th7
        5. 53.Rd6
        6. Rxf7
      4. 51...Rg7
      5. 52.Re6 with a winning endgame, for example:
        1. 52.f8=Q+
        2. Txf8
      7. 52...Th4
      8. 53.Re7
      9. Te4+
      10. 54.Rd6
      11. Rxf7
    13. 51.Re7
      1. 51.Re6 with a winning endgame, for example:
      2. Tf8
      3. 52.Rd6
      4. Txf7
    15. 51...Th7
      1. 51...Rg7
      2. 52.Re6 with a winning endgame, for example:
        1. 52.f8=Q+
        2. Txf8
      4. 52...Th4
      5. 53.Re7
      6. Te4+
      7. 54.Rd6
      8. Rxf7
    17. 52.Re8
      1. 52.Rd6
      2. Rxf7
      1. 52.Re6
      2. Txf7
      1. 52.Rd8
      2. Txf7
    19. 52...Txf7
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