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Subject: Re: Extensions.

Author: Anthony Cozzie

Date: 05:27:47 10/13/03

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On October 13, 2003 at 07:35:06, macaroni wrote:

>I recently implemented check extensions and pawn extensions. In my case, pawn
>extensions means 'any move where a pawn moves onto the 7th (2nd for black) rank'
>is extend by 1. Check was also extended by one. I had a maximum extensions of 3.
>and then ran a match between my old and new (with extensions engine). The result
>was a rather resounding win to the old one (sigh, not again :) ). Is there
>something obvious i'm doing wrong? and also, what other extensions are there?
>what is the definition of a recapture extension. Cheers

Check extensions should give you 100 elo or more.  Almost any combination will
have several checks.  Why don't you download the WAC test suite and post the
results on a few problems with and without check extensions?

anthony



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