Author: John Merlino
Date: 11:53:44 06/21/02
Go up one level in this thread
On June 21, 2002 at 11:27:40, Art Basham wrote: >Hi.. >For the most part, >I think they are the best kind of test positions available to us! > >Example, this mate in 10... > >[D]8/8/4k3/2K1N1B1/5Pp1/8/2B2P1p/6n1 w - - > >After all, checkmate is what chess is all about, is it not? > >Any program that cannot find mate in a composed problem really has serious >"problems"...I think. > >Just ask John Merlino....:-) > >What makes ChessMaster so great is this ability to find mates in such a short >time...even in a composed problem. > >regards! > >Art Composed problems do not represent any significant difference for computers. Usually, these kinds of problems require the human to think differently than he/she normally would in order to solve it. A chess engine just searches, either way.... For this one, Chessmaster 9000 announces Mate in 10 in 24 seconds on a PIII-600: Time Depth Score Positions Moves 0:00 1/3 5.32 1485 1.Bd1 Nf3 2.Bb3+ Kf5 3.Bc2+ Ke6 0:00 1/3 6.14 1612 1.Be4 Nf3 2.Bd5+ Kf5 3.Nxf3 gxf3 4.Bxf3 0:00 1/4 6.30 4164 1.Be4 Nf3 2.Nxf3 gxf3 3.Bxf3 Kf5 4.Bh1 0:00 1/4 7.65 7392 1.Bb3+ Kf5 2.Kd6 h1=Q 3.Be6+ Ke4 4.Bd5+ Kf5 5.Bxh1 Ne2 0:00 1/5 7.65 13826 1.Bb3+ Kf5 2.Kd6 h1=Q 3.Be6+ Ke4 4.Bd5+ Kf5 5.Bxh1 Ne2 0:01 2/6 6.85 71630 1.Bb3+ Kf5 2.Kd6 h1=Q 3.Be6+ Ke4 4.Bd5+ Kf5 5.Bxh1 Nh3 6.Bc6 Nxf4 0:01 2/6 7.82 78134 1.Ba4 Kf5 2.Kd6 Ke4 3.Nxg4 Nh3 4.Bc2+ Kd4 5.Nxh2 Nxf2 0:01 3/7 7.78 118361 1.Ba4 Kf5 2.Bd7+ Ke4 3.Nxg4 Ne2 4.f3+ Kxf3 5.Nxh2+ Ke4 6.f5 0:03 4/8 8.02 294219 1.Ba4 Kf5 2.Bd7+ Ke4 3.Nxg4 Ne2 4.f3+ Kxf3 5.Nxh2+ Kg3 6.Nf1+ Kf2 7.Nd2 Ke3 0:09 5/9 7.96 934440 1.Ba4 Kf5 2.Bd7+ Ke4 3.Nxg4 Nh3 4.f3+ Kxf3 5.Nxh2+ Kg2 6.Bxh3+ Kxh3 7.Nf1 Kg4 8.Ne3+ Kh5 0:24 6/10 Mate10 2736684 1.Ba4 Kf5 2.Bd7+ Ke4 3.Be8 Kf5 4.Bg6+ Ke6 5.Bh5 Kf5 6.Bxg4+ Ke4 7.Bd1 Kf5 8.Bc2+ Ke6 9.f5+ Kxe5 10.f4# jm
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