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Subject: Re: little study too difficult for some programs?

Author: Andrew Dados

Date: 15:04:48 03/08/00

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On March 08, 2000 at 17:54:35, Gerhard Vetter wrote:

>Lately I found this easy-to-solve but elegant little study:
>
>
>[D]8/8/8/8/4k3/1P1p4/1r6/R1N1K3 w Q -
>
>To my surprise many modern programs can't find the win despite of 5manTBS only
>2ply away!
>
>Junior 6 (with 5manTBS) sees only a draw after 45 min on Celeron 500/ 128
>Also Shredder 4 and Nimzo 7.32 fail to solve it.
>
>It is interesting that the older versions of some of the above programs need
>only 0 sec
>(Nimzo99) resp. 10 sec (Junior 5.0). Tiger 12.0e takes also 0 sec.
>
>It would be interesting to know how other programs do in this position and even
>more
>interesting if someone can suggest a reason for this odd behaviour of some
>leading programs.
>
>Since I don't know if this information is embedded in the EPD: white has still
>castling rights.
>
>Gerhard

I can be that your tablebases are somehow broken.. note that all programs
without TB access solved it...
It's of course just a guess.

-Andrew-



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