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Subject: Re: Check extension

Author: Volker Böhm

Date: 07:44:16 06/09/05

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On June 09, 2005 at 07:05:20, TEERAPONG TOVIRAT wrote:

>
>Hi,
>
>Many programs do extension when in check. Suppose situations without
>queen and rook, do you think it's necessary to do extension? I think
>without major pieces it's less likely to face immediate mate threats.
>Do you agee?
>
>Thanks for your comments,
>Teerapong

Hi,

an interessting idea, I didn´t test extensions in different game situations. But
I don´t think that this will give good results. Check extensions are good for
the following reasons:

1. Find tactical threats with checking moves faster (not only mate threats)
2. Reduces the chance to push a threat out of the horizont by giving check(s)
3. Find draw by repetion with checks faster

IMHO expecially the point 2. is important in endgames.

Greetings Volker



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