Computer Chess Club Archives




Subject: Re: Singular extensions

Author: Bruce Moreland

Date: 11:56:52 01/09/98

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On January 09, 1998 at 14:37:28, Don Dailey wrote:

>Well, I have to go now, I need to implement your checkmate idea ...

If you find a mate, return the mate score, and not beta.  This will let
you find mates in 1 at very least, which will help with Wac 141.  It's
safe to do this, typically, since mate in 1 is not refutable.

Also, as Bob reported in another post, it seems best to make this
extension "sticky", meaning record info about it in the hash element.

This helped Bob with Wac 141, and helped me with the other two I
mentioned previously.


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