Author: John Merlino
Date: 12:20:19 05/23/02
Go up one level in this thread
On May 23, 2002 at 14:05:23, Dan Andersson wrote: >This is a position played a few minutes ago by me. And I decided to test a few >engines on it. >[D]r4rk1/4bpp1/1n2p2p/pqp2P2/R2pP3/1P1P2N1/2P1Q1PP/2B2RK1 w - - 0 19 >The position is quite won already. What is amazing is that some engines take >forever to play 19. f6 . It's a clear given and can't take more than a few >seconds to decide. Playing safety first is an abomination in such a position. >The possible mates are quite nice. > >MvH Dan Andersson I think you are expecting way too much for a chess engine to decide on f6 in no more "than a few seconds", especially with a rook hanging. However, the move that Chessmaster 9000 (Beta version) makes on a PIII-600 in 13 seconds might satisfy you: Time Depth Score Positions Moves 0:00 1/3 0.17 863 19.Ra1 Bd6 20.Bd2 a4 21.fxe6 fxe6 0:00 1/4 0.24 4981 19.Ra1 a4 20.Qg4 axb3 21.Bxh6 0:00 2/5 0.24 20051 19.Ra1 a4 20.Qg4 axb3 21.Bxh6 0:01 2/6 0.76 78987 19.Ra1 a4 20.fxe6 fxe6 21.Qg4 Rxf1+ 22.Nxf1 Kf7 0:06 3/7 0.70 406847 19.Ra1 Nd7 20.fxe6 fxe6 21.Qg4 Rxf1+ 22.Nxf1 Kf7 23.Bf4 g5 0:13 3/7 1.16 882853 19.Bxh6 gxh6 20.f6 Bxf6 21.Rxf6 c4 22.Rxh6 Qg5 23.Rh5 Qc1+ 24.Nf1 f5 0:20 3/8 1.16 1360864 19.Bxh6 gxh6 20.f6 Bxf6 21.Rxf6 c4 22.Rxh6 Qg5 23.Rh5 Qc1+ 24.Nf1 f5 1:19 4/9 1.47 5723067 19.Bxh6 Bg5 20.Bxg5 Nxa4 21.bxa4 Qxa4 22.Qg4 f6 23.Bh6 Ra7 24.fxe6 Qxc2 25.Nf5 3:54 4/10 2.16 16750013 19.Bxh6 Bg5 20.Bxg5 Nxa4 21.bxa4 Qxa4 22.Be7 Rfb8 23.fxe6 fxe6 24.Bxc5 Rb2 25.Qf2 Qxc2 26.Bxd4 Qxf2+ 27.Rxf2 Chessmaster does not select f6 in less than five minutes. jm
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