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Subject: Re: Nobody's perfect - Shredder7.04 announces mate in 0 !?

Author: Uri Blass

Date: 04:31:32 05/13/03

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On May 13, 2003 at 07:13:55, John Boyd wrote:

>On May 13, 2003 at 00:56:49, Jouni Uski wrote:
>
>[D]5bk1/p3p1p1/p3P1P1/p7/p7/8/P7/5K2 w - -
>>
>>This is one of my oldest test positions with mate in 17 (Ke2). It's still
>>unsolved by top pros, but Yace and Crafty can solve it. Interestingly
>>Shredder7.04 first says mate in 22 and then mate in 0 (#0) !?!?
>>
>>Jouni
>
>My engine (TRACE 1.1.2) running on a P3-600 finds Ke2 Mate16 in less than a
>second...  at least its good for one thing... :-)

I forgot to say that not exactly.

It is mate in 17 so your engine is not so good if it can see mate in 16 that
does not exist.

Uri



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