Author: Adrien Regimbald
Date: 13:02:23 06/23/00
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Hi, >This is a known hashing problem. Both repetition _and_ 50 move rule draws are >are problem and cause the same thing to happen. You can either (a) ignore it >or (b) include path information in the hash signature, which will solve the >problem, but basically wipe out hash hits. Hmm.. I obviously can't do (a) if I'm interested in getting decent results .. in a 16 game match with SSEChess, Faile gave away 3 full points in easily winning positions by allowing SSEChess to draw by repetition on SSEChess's move. Most of these were cases where the game was an ending where Faile has an easy win as soon as its king finds some cover so it can safely push the extra pawns it had. (b) is very undesirable, as the benefits of hash tables are tremendous, and I'd REALLY hate to throw away all of that work after the frustrations I went through to get everything more or less in order! :P Surely there must be a better way? Any ideas would be appreciated, Adrien.
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