Author: Pham Hong Nguyen
Date: 21:01:23 06/23/02
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>First, you probably don't want the king positions hashed into your pawn >structure hash signature. > >Second, all you can really hash is simple pawn structure information, plus >information that is expensive to compute (where are passed pawns, weak pawns, >and the like) so that you can use this elsewhere without having to compute it, >when you get a pawn hash hit... I think I had had wrong understanding about the content of pawn's hash table. Thanks for your exlaination. Some other questions: - How many bits do you use for that simple structure? (and what are they?) - Do you know how fast of that method (use hash table for simple pawn structure) is, comparing with method of updating pawn structure on the fly? Many thanks, PHN > >Note that the score you hash can _only_ depend on the positions of pawns. If >you do _anything_ else you will introduce a bug, since the signature will not >reflect the locations of anything but pawns...
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