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Subject: Re: u2600 - rook sac from Lambchop-Grok

Author: Will Singleton

Date: 12:35:06 04/27/99

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On April 27, 1999 at 12:28:41, Peter Kappler wrote:

>r3r2k/p1bb1pp1/qp5p/3pP3/PBp2P1Q/4P1RP/2B3P1/R5K1 w - - bm Rxg7;
>
>
>P.S. Chess Genius 6 on my K6-300 finds Rxg7 instantly, and after a short time
>announces mate in 8.


Good position!  We seem to have the usual discrepancy in number of moves to
mate:

Chess Genius - Mate in 8
Crafty       - Mate in 9
Hiarcs 6     - Mate in 10  (mate found in 10 seconds, likes Rxg7 right away)
MacChess     - Mate in 8   (mate found in 12 minutes, likes Rxg7 after 2 min)

Amateur doesn't find the move after 2 minutes and 9 ply, liking Be7 with +3.  I
better get busy and try out the single-reply extension.  Problem is, I use
psuedo-legal moves, so I'm not sure how to tell when I only have one reply!

Will



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