Author: Bruce Humphrey
Date: 17:34:51 05/24/04
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On May 24, 2004 at 13:49:36, Christophe Theron wrote: >On May 24, 2004 at 07:27:19, Tord Romstad wrote: > >>On May 24, 2004 at 07:12:09, Daniel Jackson wrote: >> >>>It would be interesting to see if Lang's program, an earlier ver. on a >>>standalone, e.g. Almira 68000 (1988) would come in under a second. >> >>Highly unlikely, I think. It appears to me that no version of Lang's >>programs before Genius 4 searched any lines deeper than the selective >>search depth displayed in the search output. I guess that Genius 4 >>solves the position in less than a second (even on an old and slow >>computer like a 486), but that all older versions needs a long time >>to see the mate. >> >>Tord > > > >Mmh... I think you are right, so my guess about the Mephisto Lyon must be wrong. > >However I can say that the most recent versions of Genius display the same >behaviour and would not solve it if the mate is beyond the selective search >depth. > >The exception is that if the side to move in the last position (the deepest) has >an obvious mate in 1, Genius would detect it and find the mate without seeing >the opponent's King actually mated. > >I do not know if this is clear enough, but at least I understand myself. :) > > > > Christophe For information purposes, I tested this on Chess genius 2.1 for palm in a Tungsten T3. It shows: Mat11 05 Qf4+ gxf4 Bxf4+ Ne5 5724 posirions in 00:00 Bruce Humphrey
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