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Subject: Re: Basic questions regarding pawn hash

Author: Ed Trice

Date: 16:09:53 06/13/04

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On June 13, 2004 at 14:57:54, Aivaras Juzvikas wrote:

>does it pay off?i mean without stuff like that u get 99% pawn hash table hit/try
>ratio, and with game stages i guess it should be much less?even adding ep square
>(which isnt needed in my case coz it doesnt affect pawn evaluations) reduces
>success by 1% (only tested in opening positions)
>

Hash tables for pawns are not great game tree reducers, but they are time
savers. You get a slight speedup in your nodes/second with pawn hash tables.

It is much more important to reduce the size of your tree, rather than get a
slightly better nodes/second score. BUT...pawn hash tables are usually not
large, as you have read in other replies. So, allocate most of your RAM to your
tree-reducing hash tables, and about 10-12% of that should be sufficient for you
pawn hash tables.



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