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Subject: Re: Position from yesterday, Rxc7!!, problem for all Rybka versions.

Author: Mark Ryan

Date: 17:02:55 02/09/06

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On February 09, 2006 at 19:41:26, Steve Maughan wrote:

>Terry,
>
>>It is a trivial win, the Black King _cannot_ get access to a8, it's too far
>>away and the White King would never allow it.
>
>Take a look at this variation
>
>[Event "5 Minutes/Game + 1 Seconds/Move"]
>[Site "Engine Match"]
>[Date "2006.02.09"]
>[Round "1"]
>[White "Shredder 9 UCI"]
>[Black "Spike 1.1"]
>[Result "*"]
>[SetUp "1"]
>[FEN "2r5/2pR1pk1/p1P3p1/P2K4/5P1p/5P1P/8/8 w - -"]
>
>1. Rxc7 Rxc7 2. Kd6 Rc8 3. Kd7 Rh8 4. c7 Kf6 5. c8=Q Rxc8
>6. Kxc8 Ke6 7. Kb7 Kd7 8. Kxa6 Kc7 *
>
>As far as I can see, the white king is trapped between a6 and a8, so it must
>give up control of the a8 corner, force black's king to capture the 'a' pawn and
>go on a pawn hunt on the king-side.
>
>Am I missing something?
>
>Steve

Hi, Steve:

Isn't 8...Kc6 even better?  How does White win?

Mark




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