Author: Tomasz Michniewski
Date: 23:06:40 05/13/03
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Hello John, >Usually, a mate score is greater than beta and thus is stored as a LOW BOUND in >the hash table. > >But why? Assuming its the true score, shouldn't it be stored as an EXACT score? > >I guess the problem is in assuming it is indeed the shortest mate. Is that why? I tried storing EXACT instead of LOWER. Unfortunately I found out that my engine could give up e.g. queen because of returned "mate score" from TT which was just fail low value (if I remember correctly) from deeper levels and the real mate didn't exist. It lead to mistakes. That's why I changed it to normal LOWER flag. I hope it helped a bit. :-) Best wishes, Tomek
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