Author: Heiner Marxen
Date: 07:08:47 06/27/02
Go up one level in this thread
On June 25, 2002 at 21:14:03, John Merlino wrote: >On June 25, 2002 at 19:44:39, Art Basham wrote: > >>After 3 or 4 min, In this position, the Fritz 7 program ann. a mate in 20...! >>Beginning with QXN, etc. >> >>[D]4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - >> >>1. QXN also make a good test move for engines to find... > >Ain't no thang.... > >Chessmaster 9000 announces Mate in 6 in one second on my PIII-600: > >Time Depth Score Positions Moves >0:00 1/3 -1.63 1159 1.Kf1 Nd5 2.Bg5 f6 >0:00 1/4 -1.17 6144 1.Kf1 a5 2.Bg5 Nd5 3.Re4 >0:00 1/4 3.69 10406 1.Qxf4 Bxf4 2.Rxh5 gxh5 3.Rxh5 > Bh6 4.Rxh6 Qh2+ 5.Kxh2 >0:00 1/5 10.19 24318 1.Qxf4 Be7 2.Rxh5 Bxf6 3.Qxf6 gxh5 > 4.Rxh5 Qh2+ 5.Kxh2 >0:01 1/6 Mate06 72758 1.Qxf4 Be7 2.Rxh5 Bxf6 3.Qxf6 gxh5 > 4.Rxh5 Qh2+ 5.Kxh2 Kf8 6.Rh8# >0:01 1/7 Mate06 81999 1.Qxf4 Be7 2.Rxh5 Bxf6 3.Qxf6 gxh5 > 4.Rxh5 Qh2+ 5.Kxh2 Kf8 6.Rh8# > >jm And Chest confirms this to be shortest (and unique) in just 1.46 seconds on an Athlon 1500+. Cheers, Heiner
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