Author: Sune Fischer
Date: 03:22:22 09/21/03
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On September 21, 2003 at 06:04:34, Uri Blass wrote: >On September 21, 2003 at 04:59:46, Sune Fischer wrote: > >>On September 21, 2003 at 01:00:37, Paul Byrne wrote: >> >>I tried a different, even faster position, looks like it's a big zugzwang! >> >>[D]8/8/pppppppp/8/8/PPPPPPPP/8/8 w - - >I can confirm that it is wrong without programs >The pv says >1.a4 h5 2.h4 a5 3.c4 e5 4.e4 d5 > >White is clearly winning by exd5 so without expressing opinion if white is >losing this line is not the reason that white is losing. It seems to be a bad idea to cull losing captures in qsearch. Even without that I'm still getting a won score for black, though the PV makes no sense. I'll look into it a bit more, try it without hash if possible. >I think that you should not use hash tables unless you hash all the board. >They destroy everything and I cannot trust your result because there may be hash >collision(when you try to solve a game I want result without doubt and the >situation is different than playing so if I cannot be sure that there is no hash >collision your solution is wrong. > >Evaluation of unstoppable passed pawns may help you to prune stupid moves like >d5. Yes that is what I'm doing. -S. >Uri
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