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Subject: Re: Interesting KRP to KP game, for your program

Author: Roy Eassa

Date: 15:32:43 06/12/02

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On June 12, 2002 at 18:26:05, Roy Eassa wrote:

>On June 12, 2002 at 16:46:50, Ferdinand S. Mosca wrote:
>
>>[D]6R1/1p1r2p1/p3k1Pp/P2pP2K/2pP4/2P5/1P6/8 w - - 0 51
>
>
>Fritz 7 does not see the rook sacrifice in a short amount of time.  Here's what
>I think is the main line:
>
>1.Rxg7 Rxg7 2.Kxh6 Rg8 3.Kh7 Rb8 4.g7 Kf7 5.e6+ Kxe6 6.g8Q+ Rxg8 7.Kxg8 +-
>
>
>Any program must see in advance that the resulting K&P endgame (see diagram
>below) is won for White.
>
>[d] 6K1/1p6/p3k3/P2p4/2pP4/2P5/1P6/8 b - -


1.Rxg7! Rxg7 2.Kxh6 Rg8

   [2...Re7 3.g7 Kf7 4.Kh7 Re8 5.e6+ transposes]

3.Kh7 Rb8 4.g7 Kf7 5.e6+ Kf6

   [5...Kxe6 6.g8Q+ Rxg8 7.Kxg8 +-]

6.g8Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 9.Kg6 Ke6 10.Kg5 Ke7 11.Kf5 +-



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