Author: Uri Blass
Date: 10:54:54 04/17/03
Go up one level in this thread
On April 17, 2003 at 13:02:01, Drexel,Michael wrote: >[D] 8/8/8/8/8/3Q4/pp1KPPP1/k6n w - - 0 1 > >White to move and mate in 21 > >A strong human chessplayer should be able to find it easily. >The solution will follow in the next post. > >You might try to find the solution on your own. > >Happy solving! > >Michael Yace can find it after learning I guess that the software of 2010 will find it in less than 1 second thanks to superior algorithms. New game [D]8/8/8/8/8/3Q4/pp1KPPP1/k6n w - - 0 1 Analysis by Yace Paderborn: 1.Qb1+ axb1Q -+ (-11.31) Depth: 1 00:00:00 1.Kc3 b1Q -+ (-1.55) Depth: 1 00:00:00 1.Qc3 Nxf2 +- (3.55) Depth: 1 00:00:00 1.Qd4 Kb1 2.Qe4+ Ka1 3.Qe5 Kb1 4.Qf5+ Ka1 5.Qf6 Kb1 6.Qg6+ Ka1 7.Qg7 Kb1 8.Qh7+ Ka1 9.Qh8 Nxf2 10.Kc2 Nd1 11.Kb3 Kb1 12.Qh7+ Ka1 13.Qg7 Kb1 14.Qg6+ Ka1 15.Qf6 Kb1 16.Qf5+ Ka1 +- (#21) Depth: 1 00:00:00 1.Qd4 Kb1 2.Qe4+ Ka1 3.Qe5 Kb1 4.Qf5+ Ka1 5.Qf6 Kb1 6.Qg6+ Ka1 7.Qg7 Kb1 8.Qh7+ Ka1 9.Qh8 Nxf2 10.Kc2 Nd1 11.Kb3 Kb1 12.Qh7+ Ka1 13.Qg7 Kb1 14.Qg6+ Ka1 15.Qf6 Kb1 16.Qf5+ Ka1 +- (#21) Depth: 1 00:00:00 1.Qd4 Kb1 2.Qe4+ Ka1 3.Qe5 Kb1 4.Qf5+ Ka1 5.Qf6 Kb1 6.Qg6+ Ka1 7.Qg7 Kb1 8.Qh7+ Ka1 9.Qh8 Nxf2 10.Kc2 Nd1 11.Kb3 Kb1 12.Qh7+ Ka1 13.Qg7 Kb1 14.Qg6+ Ka1 15.Qf6 Kb1 16.Qf5+ Ka1 Uri
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