Author: John Merlino
Date: 14:14:02 02/07/06
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On February 07, 2006 at 16:33:26, Marc D wrote: >On February 07, 2006 at 15:51:52, Andreas St. wrote: > >>Hi, >> >>here i have a nice position, where Rybka is in big trouble. >>It doesnt find 1.Rxc7! I aborted the analyze with Rybka 13b (setting) >>after one hour. Also the previous rybka betas don't find Rxc7. >>Mephisto Vancouver from 1991 finds the right move in 8min 45s!!! >> >>Here the position: >> >[D]2r5/2pR1pk1/p1P3p1/P2K4/5P1p/5P1P/8/8 w - - 0 1 > >Why is Rxc7 that good? First of all, it will win a pawn, even if Black plays 1...Rxc7 in response (2.Kd6, then if 2...Ra7 3.d7 and if 2...Rc8 3.Kd7 and White will be able to win the rook back). And then White will be able to pick up the a6 pawn and promote before Black will be able to. White wins with Rxc7. jm
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