Author: Serge Desmarais
Date: 20:39:23 09/13/98
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On September 13, 1998 at 21:49:07, Richard A. Fowell (fowell@netcom.com) wrote: >Serge asked what programs played Qxa7? in the following position: > >3rr1k1/ppp3q1/2b5/6p1/5p2/2R2N2/PPP2QPP/R5K1 w - - > >I tried this on a few programs on my Macintosh 7300/180 - > >I'll list from best to worst result: > >Chessmaster 4000 - discarded Qxa7 in favor of Re1 in less than 2 seconds. >HIARCS 6.0 - saw Qxa7 as bad at 3 seconds, but took 12 seconds to switch to Re1 >Sigma Chess 4.0 Lite - saw Qxa7 as bad in 35 seconds, but stuck to it at 3 min. >MacChess 4.0 - kept Qxa7 to 3 minutes, and still thought it was a good move. > >Richard A. Fowell >(Note: Sigma Chess and MacChess free at http://www.gambitsoft.com/mac.htm) Maybe it has to do with the quality of the extensions of the different programs? Because to discard it in the first few seconds, the program cannot have calculated everything. Chessmaster 4000 is impressive. Not too materialistic, or maybe it has to do with the security of its king? Serge Desmarais
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