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Subject: Re: For Dr. Robert Hyatt

Author: Russell Reagan

Date: 23:29:44 12/31/03

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On December 31, 2003 at 21:14:08, Robert Hyatt wrote:

>Note that isn't necessarily so.  With an 80 bit board, you can actually
>generate _more_ moves per piece, which will make things go a bit faster.
>IE sliding pieces in particular can slide farther...

Sure, if you had 80-bit registers. Even then, a piece will never move more than
one or two squares farther, and it is only an extra attack or two, not a move.
All most must still be generated individually. Surely the costs of using 80-bit
bitboards on 32-bit hardware outweigh getting a handful of attacks for free at
each node. Don't you think?



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