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Subject: Re: Why using Zobrist keys for Pawn Hashing?

Author: Gerd Isenberg

Date: 07:52:39 12/05/01

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You are completely right. i meant the normal subtraction via twos complement. I
intuitively made the totally wrong assumption, that the difference is unique if
no bits are common in both operands - specially in a 64 bit word where only bits
8-55 may set.

Sorry for my nonsence and thanks for clarifying.

Gerd




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