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Subject: Re: Another interesting Anti-Null move position (from a real game)

Author: Dieter Buerssner

Date: 14:20:47 06/15/04

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On June 14, 2004 at 19:20:57, Anthony Cozzie wrote:

>Zappa doesn't get it either (gxh5 @ 15 ply after 1 minute).  Zappa relies on
>double nullmove for zugzwang avoidance.  This works find for positions with 1
>zugzwang, but in this position black gets hit with about 10 of them :)

Double null move correctly implemented should not have any problem in principle,
with as many Zugzwangs as you want. Of course, the Zugwangs will "eat" a lot of
depth, and search time/depth might not be enough practically soon. Theoretically
(with infinite) time, it should be able to solve any problem. Normal null move
pruning won't, of course.


Regards,
Dieter



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