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Subject: Re: Importance of a transposition table

Author: Daniel Clausen

Date: 09:28:06 12/10/02

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On December 09, 2002 at 11:15:35, Dieter Buerssner wrote:

>On December 09, 2002 at 09:55:50, Robert Hyatt wrote:
>
>>Some have tried.  Monty Newborn had a pawn-endgame-only program called
>>"peasant."  It
>>couldn't do this one either...
>
>The program Wilhelm by Rafael B. Andrist will solve it at ply 1 (score +1.8). It
>did not switch away in few minutes. It has, according to its author,
>sophisticated knowledge about corresponding squares.
>
>When I do Kb2 on the board, Wilhelm shows 0.0 immediately.
>
>Regards,
>Dieter

If I remember right, Rafael once mentioned in CCC, that his program knows what
'Gegenfelder' are. Not sure what the English term for that is though. But it's
the theory, where you know that if whites king is on square X, blacks king has
to be on field Y, in order to hold the draw.

A very good example in my opinion, which shows what one can do in an engine with
chess knowledge. In Fine70s position, it's not just 'pure luck' that Kb1 wins,
whereas Kb2 only draws...

Sargon



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