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Subject: Re: What is Botvinnik-Markov extension?

Author: Pallav Nawani

Date: 22:42:38 10/27/05

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On October 27, 2005 at 06:47:37, Tord Romstad wrote:

>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.
>

The real reason why Gothmog & Glaurung find Qxf4 quickly is checks in Qsearch.
That's what my experience was, anyway. Without checks in Qsearch, Natwarlal
takes a looong time to find Qxf4. But with checks in Qsearch, it finds it
quickly (Not as quickly as Gothmog & Glaurung though).



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