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

Author: Dieter Buerssner

Date: 09:16:53 12/05/01

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On December 05, 2001 at 11:26:11, Dieter Buerssner wrote:

>[...]With more update work
>(how much more will depend on the internal datastructure used in the engine
>anyway), 64 bits will be enough. 48 bits for all pawns, and a color list of 16
>entries, where for each set bit in the pawn mask the color of the pawn is given.
>This still has much redundance (for example with 16 pawns, you allways will know
>the color of the last pawn).

I forgot side to move. So, this last bit could be used for this, and everything
would still fit in 64 bits.

-- Dieter



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