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Subject: Re: What is Botvinnik-Markov extension?

Author: Tord Romstad

Date: 03:47:37 10/27/05

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On October 26, 2005 at 20:21:48, Ryan B. wrote:

>Would this be a replacement for Mate Threat extension?

Not really, but it happens that they are both triggered at once.
WAC141 is a typical example; Gothmog with the BM extension finds
Qxf4 after only 6 plies and 13,367 nodes.

>It seems to me that it would extend a lot of lines that are already
>extended and maybe some that have been reduced.

This happens, yes.

>I do think this could help detect badly trapped pieces at the end
>of a search.

You are right, this is a typical case where the BM extension
frequently helps.

Tord




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