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Subject: Re: draw by repetition behaviour

Author: James Swafford

Date: 20:28:58 05/31/01

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On May 31, 2001 at 08:55:44, JW de Kort wrote:

Assuming your draw by rep works properly, the only other conclusion
would be that the search revealed that, in the program's estimation,
the draw was more valuable than proceeding.

This implies your program is scoring won positions with negative values,
or the draw by rep code is buggy.  How do you detect draw by rep?

If this happens when two pawns up, I'd suspect the draw by rep code
was busted.  It's pretty tough for the positional evaluation to outweigh
two pawns (not that it doesn't happen...).


--
James


>Hi,
>
>My program has by now reached a level were it can play strong enough to leve the
>middle game in a favorable position. e.g. advantage of a bishop or a few pawns.
>Every time this happens the program seems to reach some kind of an equilibrium
>and the position will result in a draw by repetition. Can anybody explain why
>this happens? I would expect the program to try to make use of this advantage.
>This even happens when the position was completely won having an advantage of
>two pawns.
>
>
>Can anybody explain why this is happening?
>
>
>Greetings
>
>Jan Willem



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