Author: Terry Ripple
Date: 18:54:22 06/22/99
Go up one level in this thread
On June 22, 1999 at 21:46:02, Terry Ripple wrote:
>On June 22, 1999 at 21:32:06, James T. Walker wrote:
>
>>Hello,
>>I believe the mystery of why Hiarcs 7.32 plays better in engine/engine games is
>>because of the way Hiarcs does not reset it's hash tables after each move. This
>>is an advantage because Fritz does. The result is that Fritz must start it's
>>search at ply 1 each time even if it has predicted Hiarcs move because no
>>pondering is allowed in engine/engine testing. But because of the way Hiarcs
>>uses it's hash when it is Hiarcs turn to move it still has search info in the
>>hash memory. So you will see Hiarcs start it's search at something like:
>>+-2 (2.68) depth 7/18 00:00:00 27kN. This is almost as good as pondering
>>because it saves time in the search. Effectively Fritz is stripped of it's
>>"Pondering" while Hiarcs has something almost as good as pondering. Note this
>>advantage does not exist in Auto232 operation since Fritz is pondering and when
>>it guesses Hiarcs next move it is effectively way ahead in it's search.
>>
>>Jim Walker
>>
>>P.S. Any comments welcome.
>
>I believe that your on to something Jim! Very possible!!
>
>Terry Ripple
PS. Maybe a way around this is to minimize the hash table for Hiarcs, but how
much is the Big question!
I have an idea to play over some of the same games that fritz lost and see
if it makes a difference in the same game when lowering the hash table.
Terry
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