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Subject: Re: shortest mate test position that programs cannot find

Author: David Dahlem

Date: 07:32:25 07/20/02

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On July 20, 2002 at 04:12:37, Uri Blass wrote:

>On July 19, 2002 at 23:07:20, allan johnson wrote:
>
>>On July 19, 2002 at 23:05:58, David Dahlem wrote:
>>
>>>On July 19, 2002 at 21:23:19, K. Burcham wrote:
>>>
>>>>
>>>>
>>>>what is the shortest "mate in x moves" position that you know of that programs
>>>>have a diffcult time finding or cannot find at all? Please, not e4.
>>>>
>>>>will you please post the position?
>>>>kburcham
>>>
>>>I tested some programs on this mate in 1 and some didn't see it. I don't
>>>remember now which engines couldn't find it.
>>>[D]5K2/8/2qk4/2nPp3/3r4/6B1/B7/3R4 w - e6 0 1
>>>Regards
>>>Dave
>
>I think that this is not the fair way to test
>
>You should give programs the following position
>
>[D]5K2/4p3/2qk4/2nP4/3r4/6B1/B7/3R4 b - - 0 1
>
>play e5 and see if they cannot see the mate in 1.
>
>In other case you use a bug that programs do not
>support Fen correctly.
>
>My latest Movei still ignores the en passant in supporting Fen
>so it is unfair to say that it cannot see the mate in 1.
>
>Uri

The poster asked for a test position and that's what i posted. So whether it's
fair or not is not revelant.
Regards
Dave



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