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Subject: Re: TableBase-Bug in Crafty 16.15 - Question to Bob Hyatt

Author: Helmut Conrady

Date: 09:13:38 09/30/99

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On September 30, 1999 at 10:16:24, Steve McRiley wrote:

>On September 30, 1999 at 09:53:09, Helmut Conrady wrote:
>
>I think I´ve found a little Tablebase-Bug in Crafty 16.15. Look at this
>>position for example:
>>
>>wKe5, e2, d2; bKa8, d5.
>>
>>After Kd5: there is a postion with PP vs P on
>>the board and (with installesd tablebases!) I expected Crafty to show a
>>mate in several moves. But he
>>is calculating and calculting and shows after minutes something about
>>+10.
>>
>>After Kd5: he announces a correct mate. This phenomenon took place when
>>there is a pawn at the row next to the black pawn (Example: black f-pawn
>>with
>>white e or/and g-pawn) and the white pawn is at its beginning field.
>>When
>>you move this white pawn one or two squares above Crafty has no problem
>>with showing the mate.
>>
>>Is it a problem of Crafty of 16.15 or a problem belonging to Craftys
>>running under the Fritz GUI?
>>
>>Best wishes
>>
>>Helmut
>
>I think you should try to reinstall or something. It works perfectlly for me.
>Mate in #14 and Mate in #13 after Kxd5.
>
>/McRiley
>
>/McRiley

The Problem is that Crafty have to announce a Mate BEFORE Kd5: like other
engines with Table base access do.

Helmut



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