Author: Dieter Buerssner
Date: 13:00:45 08/13/02
Go up one level in this thread
On August 13, 2002 at 07:18:19, Tony Werten wrote:
>On August 13, 2002 at 07:16:15, Tony Werten wrote:
>
>>On August 13, 2002 at 05:25:11, Kurt Utzinger wrote:
>>
>>>8/8/K6p/6p1/8/8/k5PP/8 w - - 0 1
>>XiniX says g4 is a checkmate in 38
>
>and changed it's mind to 32 after a while
Yace thinks, it is mate in 30. Because of the search depth reached, a shorter
mate, or an error in the PV (allowing black to live longer) would mean a bug.
2873140 1:38.1 Mat30 62. 1. g4 Ka3 2. Ka5 Ka2 3. Kb6 Kb3 4. Kb5 Kc2 5.
Kc6 Kc3 6. Kc5 Kc2 7. Kd6 Kd3 8. Kd5 Ke2 9. Ke6
Ke3 10. Ke5 Kf2 11. Kf6 Kf3 12. Kf5 Ke3 13. h3
Kf3 14. Kg6 Kg3 15. Kxh6 {EGTB} 15...Kf4! 16.
Kg6 Ke4 17. Kxg5! Ke5! 18. h4! Ke6 19. h5! Ke7
20. h6 Kf7 21. Kf5! Kf8 22. g5 Kg8 23. g6 Kf8!
24. g7+ Kf7 25. Ke5! Ke7 26. g8=Q! Kd7 27. Qc4!
Ke7 28. Qc7+ Ke8 29. h7 Kf8 30. h8=Q# {2002}
Regards,
Dieter
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