Computer Chess Club Archives




Subject: Re: Nullmove: when to avoid it?

Author: Ernst A. Heinz

Date: 12:42:01 02/28/01

Go up one level in this thread

Hi Leen,

>Neither did I, but in Heinz's book, p. 25, I read the
>following, which made me wonder about null windows:
>"...null-move pruning generates selective cutoffs at
>nominal full-width nodes..."
>Could you (or anyone else, preferably Heinz himself?)
>please tell me what he means by 'nominal full-width nodes'?

The term "nominal full-width search" is defined and explained
on page 25 of the book.

It means exactly what Bob guessed in his post -- a search that
would normally be considered full-width (upper part of the tree)
but no longer is exactly so because of selective pruning.


This page took 0 seconds to execute

Last modified: Thu, 07 Jul 11 08:48:38 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.