Author: Jeroen van Dorp
Date: 14:00:40 04/28/01
Recently I posted a position from a problem -so I found out- by Seletsky from 1933, -a winning composition- that looks like this: [D]5q2/n2P1k2/2b5/8/8/3N4/4BK2/6Q1 w - - 0 1 The solution given is: 1.Qg5 Ke6+ 2.Kg1 Kxd7 3.Nc5+ Kc8 4.Ba6+ Kb8 5.Qg3+ Ka8 6.Bb7+ Bxb7 7.Nd7 Qd8 [of course no forced mate, but this loses as well: 7...Nb5 8.Nxf8; as well as: 7...Bd5 8.Nxf8] 8.Qb8+ Qxb8 9.Nb6# To my amazement few programs found the solution, and to think that chess programs are basically so strong in calculating these kinds of tactical manoeuvres. Two engines found the solution: Shredder 5 immediately and Nimzo 8 after some 22 secs on my PIII@840; I tried Fritz 6, Junior 6, Gandalf 4.32h, Chess Tiger 14, RC 3.0, Hiarcs 7.32, Shredder 4, Fritz 5.32 and maybe I've forgotten someone. Any other *positive* results from other chess programs? J.
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