Author: Vincent Lejeune
Date: 01:01:29 09/07/04
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On September 07, 2004 at 02:11:59, Janos Keinrath wrote: >On September 06, 2004 at 20:36:20, David Dahlem wrote: > >>What is the KBNK position with the longest tablebase distance to mate? >> >>Thanks >>Dave > >[D] 7K/4B3/4k3/8/8/8/8/2N5 w - - > >White mates in 33. With the optimum sequence : 1. Bf8 Kd5 2. Nd3 Kd4 3. Nc5! Ke5! 4. Be7 Kd4 5. Kg7! Kc3 6. Ne6 Kc2 7. Kg6 Kd1 8. Nf4 Kc2 9. Kf5! Kb3 10. Ne6 Kc4! 11. Nc7! Kd3 12. Bc5! Kc4! 13. Ba7 Kb3 14. Bf2 Kc2 15. Ke4! Kd2! 16. Kf3! Kd3! 17. Be3! Kc2 18. Ke2! Kc3! 19. Bb6 Kc4! 20. Kd2! Kb3 21. Kd3! Ka2 22. Ba5 Ka3 23. Bc3 Kb3 24. Na6 Ka4! 25. Kc4! Ka3 26. Nb4! Ka4 27. Nd3! Ka3 28. Bb4+! Ka2! 29. Kc3! Kb1! 30. Kb3! Ka1 31. Kc2! Ka2 32. Nc1+! Ka1 33. Bc3#
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