Author: Severi Salminen
Date: 03:44:58 03/01/01
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>There is another point, unrelated to hashing, >which I forgot to mention in my original question. >Since we are hoping for fail high, it seems to >me obvious that nullmoves are also useless if >beta = inf, where inf is the maximum value, >used in the largest possible window. Perhaps this >is so obvious that nobody mentions it? Yep, that's true. As Bob said it is very rare to have beta=INF. Actually Beta=INF can occur only in the very beginning of the search until we get our first real score (score<=INF-Ply). Remember also that you don't have to know anything else about the nullmove but whether its score is >=beta. So you can search with (-beta,-beta+1) Severi
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