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Subject: Re: a simple draw that programs do not see

Author: Dann Corbit

Date: 10:34:16 06/04/99

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On June 04, 1999 at 04:27:15, blass uri wrote:
>On June 03, 1999 at 17:03:08, blass uri wrote:
>>6k1/r6p/4PQp1/8/5PP1/4K2P/8/r7 b - - 0 1
>>
>>This position(from Shep's games) is a simple draw by perpetual check.
>>
>>The last move of white (Hiarcs7) was e6 and it could not see the simple
>>perpetual check.
>>
>>I know that some other programs also fail to see this simple tactics.
>>
>>How much time do your program need to give the position evaluation of 0.00?
>>
>>Uri
>
>Programs need to see more than 60 plies to see the repetition and this example
>proves that seeing more than 60 plies forward may be practically important in
>chess.
>
>Humans have no problem to see more than 60 plies forward and only computers have
>this problem.
With 11 pawns+pieces still on the board, there is no program that will find
this, I think.  60 plies forward is a big chore for me.  If you can do it with
no problem, then I don't want to have to play you!




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