Author: Tord Romstad
Date: 03:12:14 10/17/03
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On October 16, 2003 at 18:50:32, William Kerr wrote: > >Worlds toughest until someone finds a tougher one. > >After timing engines solving many mates in four, this one was by far the >toughest. > >[D] 8/3p1p2/5Ppp/K2R2bk/4pPrr/6Pp/4B2P/3N4 w - - bm Nc3;id #1097 mate in 4 >very-very tough; > >This is a composed mate in 4 problem from Benko's Baffler's #1097. > >Most engines take a very long time to find the mate in 4. Gothmog 0.4.0 is no exception. On a Pentium IV 2.4 GHz, it doesn't find a mate in 4 at all within one hour, but it announces mate in 6 at ply 21 after 44 minutes. Tord
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