Author: Steve Maughan
Date: 05:37:17 11/05/03
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Uri, >>perhaps I do not understand something but my chess program has no best move >>in case of fail low because it does not claulcate exact score for moves that >>fail low. With fail soft Alpha-Beta you can get a psuedo 'best' move and score. Some programs store this move in the hash table (e.g. Shredder). >To be more correct I am not going to store a move when I have no idea about a >move that gives a value that is bigger than beta because if the first move >fail high I also do not know the best move and in theory it is possible that >the first move is the worst move but still good enough to be above beta. So if you don't store fail highs or fail lows this means that you only store PV nodes i.e. ones where the score is between alpha and beta? This is not normal - most (all?) programs store moves where the score is >= BETA. Regards, Steve
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