Author: Andrew Williams
Date: 17:16:48 05/10/02
Go up one level in this thread
On May 10, 2002 at 16:01:56, Dieter Buerssner wrote:
>On May 10, 2002 at 12:37:15, Andrew Williams wrote:
>
>>PM finds the first 3 moves after 5 seconds and the score shoots up to +7.88
>>after 8 seconds (ply 21). However, it takes until ply 28 to report mate in 29.
>
>Andrew, can you show the line for mate in 29?. Mine only finds a mate in 30.
>Usually, this is no reason to be concerned, but I'd like to look at the shorter
>mate.
>
>The line I get is:
>
>1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg8 5.
>Kg4 Kf8 6. Kf4 Ke8 7. Kg5 Kf7 8. Kf5 Ke7 9. Ke5
>Kd7 10. Kf6 Kc6 11. Kg7 Kb5 12. Kxh7 {EGTB}
>12...Kxa5! 13. h5 b5! 14. h6 b4! 15. Kg7!! b3
>16. h7!! Ka4 17. h8=Q!! Ka3! 18. Qa8+! Kb2! 19.
>Qa4 Kc3! 20. Qe4 b2 21. Qb1 Kc4 22. Qxb2 Kd3!
>23. Qb3+ Kd4 24. Kf6! Ke4 25. Qc3 Kd5! 26. Qb4!
>Kc6 27. Ke6! Kc7 28. Qb5! Kc8! 29. Kd6! Kd8 30.
>Qb8# {1001}
>
>Regards,
>Dieter
I have the problem here. My program returns the PV up to the EGTB hit at
12.Kxh7. If I walk forward to that position, my program correctly says +M18.
When I walk forward through the moves, my program gets confused at 5.Kg4. In
that position, PM changes its mind from +M25 to +M27. Clearly something is off
here.
Andrew
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