Author: Vincent Diepeveen
Date: 01:42:05 12/06/01
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On December 05, 2001 at 08:22:40, Gerd Isenberg wrote: Suppose in pawnhashtable i would use such a scheme. first of all using 8 bytes i would store using zobrist like 44 bits and use 20 to index. Now i miss how you a) prevent chaining b) number of pawns seems not so hard as i thought. But like a major majority of positions they get stored at the same location. >About the pawn hash key discussions: Why using Zobrist keys for pawn hashing at >all, at least in BitBoard programs? Isn't it smarter to use a unique 46 Bit >(Rank2-7) Difference of two colored Pawn-BitBoards instead of zobrist keys for >pawns? No key collisions and key and index (key mod nEntries) calculation on the >fly. > >Gerd
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