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Subject: Re: Outside passer and candidate passer: definition wanted! :-)

Author: Günther Simon

Date: 07:10:30 02/27/06

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On February 27, 2006 at 09:36:43, Alessandro Scotti wrote:

>Thanks a lot Uri, this is an excellent definition to use in a program!
>
>On February 27, 2006 at 09:07:34, Uri Blass wrote:
>
>>definition is simply open pawn that is not a passed pawn and has a friendly pawn
>>that can support it for every square in the promotion path that does not make it
>>a passed pawn (for example white a4 b4 against black a6 but not white a5 b4
>>against black a6 because a5 cannot support b5)
>>
>>Uri

This is not always true. The pawn a5 can still support b5 sometimes.
Here White still moves b5! and gets a supported passer on b6, because
Black has to move its King nearer. As White is still in the square
of Blacks passer it is an easy win for White.

[D]8/8/p3k3/P6p/1P6/4K3/8/8 w - - 0 1

Guenther



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