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Puzzle 950411: As brancas ganham o final

Study by N. Grigoriev
Shakhmaty v SSSR#018, 1938
  2. 1.Rd3
  3. Rb8
  4. 2.Re4
  5. Rc8
  6. 3.Rd4
  7. Rd8
  8. 4.Rc4
  9. Rc8
  10. 5.Rb5
  11. Rc7
  12. 6.Rc5
  13. Rc8
  14. 7.Rd6
  15. Rd8
  16. 8.b5
  17. Rc8
  18. 9.Re7
  19. Rc7
  20. 10.Rf7
  21. Rd7
  22. 11.Rg7
  23. Re7
    1. Solução:11...Re7
    2. 12.Rxh7
    3. Rf8
      1. 12...Rf7
      2. 13.b6
      3. Rf8
      4. 14.Rg6
      5. Re7 with a winning endgame, for example:
      6. 15.h7
      7. Rd6
      8. 16.h8=Q
    5. 13.Rg6
    6. Rg8 with a winning endgame, for example:
      1. 13...Re7 with a winning endgame, for example:
      2. 14.h7
      3. Rd6
      4. 15.h8=Q
    8. 14.b6
    9. Rh8
    10. 15.Rf6
    11. Rh7
    12. 16.Re7
    13. Rxh6
    14. 17.Rd8
    15. Rg6
    16. 18.Rc8
    17. Rf6
    18. 19.Rxb7
    19. Re6
    20. 20.Rc6
    21. Re7
    22. 21.b7
    23. Rd8
    24. 22.b8=Q+
  25. 12.Rxh7
  26. Rf7
  27. 13.b6
1-0
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