Author: Ernst A. Heinz
Date: 10:47:18 11/01/98
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On November 01, 1998 at 12:56:12, Inmann Werner wrote: > >you are right. my percentage is about 50% in normal game. I have to think about >it. >On the one hand, if I make a hit, the evaluation is extremly fast. On the other >hand, if I only hash the pawns, I get much more hits, but have more to do in >much more difficult in evaluation, because good king standing and rook standing >depends on pawn structure. >When I have a little time, I try both and look whats really faster. Werner, All pieces that tend to move around *frequently* will greatly hurt the hit rate of your Pawn hashing. Therefore, I recommend that you never include any major or minor pieces therein. The Kings, however, are different "animals" which can safely be hashed together with the Pawns as long as they must stay behind safe shelters in the middlegame. "DarkThought" drops them from the Pawn hashing *dynamically* as soon as King safety does not matter anymore. =Ernst=
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