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Subject: Re: Interesting position

Author: William Bryant

Date: 13:42:37 08/14/99

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>>On August 13, 1999 at 03:10:30, James Robertson wrote:

>If the position occurs twice, I score it as a draw. Perpetual check is often
>hard to find, but in a position like this where there are not many king moves,
>the draw can be spotted. My program doesn't see the draw either, even after 11
>plies. I changed my extensions a bit, and now I see Kh1 at ply 7, so I am fairly
>happy now.
>
>James
>
I see Kh1 at ply 9 when enabling Delta pruning in my QSearch.

 9   5496659     1:30   -4.30  Kh1 Bxg5 Qxg5+ Kh8 Bf3 a5 Rc1 Qb4 Bxc6 Bb7

I don't have verly many search extensions.  Just out of curiosity what
extensions
are you using, and what tweek did you make to improve the eval of this position.

William
wbryant@ix.netcom.com



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