Author: Bruce Moreland
Date: 23:59:31 04/15/99
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On April 15, 1999 at 23:15:08, odell hall wrote: >Hi > > >The below position is taken from the Book Secrets of Chess Analysis by Jan >timman. > >3q1rk1/1p3p2/r2p2pb/P1pP1n1p/2N2P2/1QPP4/6BP/1R3RK1 w - - id Geller - Spaasky; > > >28. Be4!!! Timman remarks "White appreciates the strength of the strongpoint f5 >and defers the capture on b7, which would give black the chance for a promising >exchange sacrifice. 28. Qxb7, Rxa5 29.Nxa5, Qxa5 and now 29.Qb2(to be able to >defend important weak points from d2 or c2). > > >I tested rebel on this position and it simply could not resist the pawn on b7! > However hiarcs6 after 82 sec Chose 28. Bh3!! which I think is about the same >as Be4. In my opinion this is a excellent positional test for computer programs >to see just how well they understand position. I suspect that only the strongest >programs will be able to resist the juicy pawn on B7. I also Tested MChess 8 >which chose Be4 after one minute thought and +76 evaluation. Mine wants to take the pawn, for a really long time. It'd be interesting to know why others don't want to take the pawn, I expect they wouldn't see 28. Qxb7 Rxa5, but if someone will play that I'd be interested in knowing. Are other programs simply choosing a different way to win material? bruce
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