Author: Heiner Marxen
Date: 09:49:05 03/04/01
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On March 04, 2001 at 08:24:38, Steven J. Brann wrote: >[D]2k1rbr1/1pp5/p3P1qp/1Q4p1/3P1p2/6N1/5PPP/R1B1R1K1 w - - 0 1 > >This game was played by correspondence in 1875. Mrs. Berry announced mate in 18 >from this position. Can your computer do the same? I doubt it. CM8000 found a >winning line in 18 moves (different than Mrs. Berry's), but wouldn't announce >mate until 6 moves into the solution. I'll post Ms. Berry's play and CM8000's >line after you have a go at it. This one appears to be out of reach for Chest. On my K7/600 (350 MB hash) it needs already twenty minutes for "no mate in 8". The effective branching factor is around 8. Provided, there is not a much shorter mate: No chance! Now I'm waiting for the solution, to study it carefully! Heiner
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