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Subject: Re: a test position for computers(from dark thought-rebel game)

Author: Peter Kappler

Date: 23:37:37 06/21/99

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On June 22, 1999 at 00:07:56, blass uri wrote:

>8/8/4k3/1p4PP/3P1P2/5b2/8/4K3 w - - 0 1
>
>The target is to find Kd2
>simple for humans but hard for computers that prefer the losing move h6
>
>Dark thought passed the test in WCCC and drew against Rebel
>
>Uri

Uri,

This is indeed a very good test position.  Here are some results:

Genius 6, K6-3/450, 32MB hash
 13 minutes to see that h6 is bad (-1.5)
 37 minutes to find Kd2! (-0.3)

Fritz 5.32, P2-300, 64MB hash
 45 minutes, and it still thinks h6 is a draw
 My experience is that Fritz can be quite stupid in endgames.


Nice job by DarkThought to find Kd2! in relatively short time.  Perhaps if Ed is
following this thread he can tell us how long DarkThought thought in this
position.


--Peter




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