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Subject: Re: Question on passed pawns.

Author: José Carlos

Date: 00:25:53 04/23/01

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On April 22, 2001 at 22:28:27, William Bryant wrote:

>I'm looking for suggestions or comments about handling passed pawns in the
>program.
>
>The specific area of trouble is when doubled pawns are passed.
>
>At present I only extend on the most advanced of the doubled passed pawns
>and only evaluate the most advanced of doubled passed pawns as a passed pawn.
>The other pawn is simply a doubled pawn.
>
>When testing this on certain test suites, the version that considers both
>doubled pawns as passers did a little better, which is counter-intuitive.  It
>needs a lot more testing, but I'm look for comments or previously gained
>experience.
>
>William
>wbryant@ix.netcom.com

  I wouldn't consider the least advanced as a passer, as a chess player I am. As
a programmer, I'd say that the better results you get in the test when
considering both pawns as passers is due to the fact that, I the tests, you get
the best results when giving high values to what is tested. So, in a test about
passed pawns, you'll get great results if you give very high values to them, but
that won't help much in real play.

  José C.



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