Author: Dieter Buerssner
Date: 14:47:58 04/18/03
Go up one level in this thread
On April 18, 2003 at 17:43:35, John Merlino wrote:
> 984626898 21:47.3 18.97 14t 1. Qg2 Re2 2. Rd5+ Rd2 3. Rd8 h4 4. Qg4+ Qe2 5.
>> Qa4+ Ke1 6. Qxh4+ Kd1 7. Qh1+ Qe1 8. Qf3+ Qe2
>> 9. Qc6 Qe1 10. Qc1+ Ke2 11. Re8+ Kf3 12. Rxe1
>> Rd8 13. Qd1+ Kf4 14. Qxd8 Kf5 {1501}
>>
>>
>>With such a good score, Yace will also not try hard to find a mate (it tries
>>hard to find a good move for the losing side, instead).
>>
>>Regards,
>>Dieter
>
>Actually, with Yace's final PV, should it have been able to give a mating result
>based on tablebases? There are only four pieces on the board after 14.Qxd8 in
>the last PV.
Very well spotted, John. That deep in the tree, Yace won't probe TBs anymore
(with default settings; one can set it up to look at TBs in that line. Typically
it would just go very slow. Sometimes it will spot a mate much faster). It is a
compromise - as it is often in chess programming. I didn't try in that position.
Regards,
Dieter
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