Author: Bernhard Bauer
Date: 06:17:07 12/08/99
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On December 08, 1999 at 07:32:33, Alexander Kure wrote: >Hi everybody, > >When working through Nimzo's games he recently played on ICC i came across a >game he played against Crafty which led to the following pawn endgame (Crafty >white, Nimzo black): > >6k1/p6p/4p1p1/8/8/1P6/P5PP/5K2 w - - 0 39 > >The resulting position is a 'simple' win for white dispite the fact that black >has a passed center pawn. White's pawn majority on the queenside will lead to a >remote passed pawn which will result in a win for white. >I am interested in the static evaluation of this position of various chess >programs. Which programs recognize that this position is a win for white? > >The next step is how to avoid this position when confronted with it in the >search. Here is the position a few moves ago: > >6k1/p4p1p/4B1p1/8/8/1P6/P5PP/2q2QK1 b - - 0 37 > >Black just checked White's king on c1 and White defended by moving his queen to >f1. >Now the question is: Which programm with black to move avoids the queen exchange >which leads to the lost pawn endgame above? >Now instead of exchanging queens by 1...Qxf1?? 2.Kxf1 fxe6 leading to the lost >pawn endgame above the sequence 1...Qe3+ 2.Kh1 (2.Qf2 Qc1 repeats the position >or 2.Qf2 Qxe6!?) and now 2...fxe6! (2...Qe6 is not so intersting) will lead to >an interesting position. > >Greetings >Alex I don't think that Crafty sees the win in your first position, but it shows a small advantage for white - score=0.87. In your second position Crafty will avoid the exchange of queens. Instead it likes 1...Qc5 with a score of zero. 1. ... Qc5+ 2. Qf2 Qc1+ 3. Qf1 Kind regards Bernhard
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