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Subject: Re: endgame position - null move problem

Author: Dieter Buerssner

Date: 14:35:56 02/06/03

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On February 06, 2003 at 16:57:29, Jon Dart wrote:

>Here's a position that occurred in a recent offline test game:
>
>8/6r1/p7/1p6/3kBn1P/P2p1P2/1P6/3R1K2 b - -
>
>Ke3 is winning here, but Arasan 6.3 doesn't get this, in fact it wants to play
>Rg8. It is apparently a null move issue. If I turn off null moves, or restrict
>the null move in the case where the opponent has an advanced passer, then it is
>solved quickly.

I also get a rather big difference in search depth, but not so much in time.
With null move after 8 s/d12, without 2 s/d8. (Yace, P4, 2.53 GHz). Each time a
significant fail high for Ke3.

Regards,
Dieter

• Re: endgame position - null move problem Will Singleton 15:32:19 02/06/03
  • Re: endgame position - null move problem Klaus Friedel 22:36:57 02/06/03

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