Author: Djordje Vidanovic
Date: 17:54:19 11/21/03
Go up one level in this thread
It could be done in the way Dave Kittinger did it in back at the beginning of the 80's, in the Constellation series, by using the PSH (pre scan heuristics?). You probably remember that Uli? Bob Hyatt has certainly coded that type of knowledge into Crafty. Crafty has played more human players than any existing computer program... on ICC. That's why I think that Crafty could have put one hell of a fight against GK... Djordje On November 21, 2003 at 18:20:20, Ulrich Tuerke wrote: >Very easy for Crafty. Crafty doesn't consider hxg at all. >I think that Robert has some special code to avoid these kinds of traps. > >Analysis by Crafty 18.15: > >1...d5 2.Ncb5 Bxb5 3.Nxb5 Qc4 > ± (0.88) Depth: 4/18 00:00:00 >1...d5 2.Ncb5 Bxb5 3.Bxf6 Bxf6 4.Nxb5 > ± (0.77) Depth: 5/20 00:00:00 >1...d5 2.e5 Ne4 3.Qe3 Nxc3+ 4.Qxc3 Re8 5.Bxe7 Rxe7 6.Nxc6 Qxc6 > ± (0.91) Depth: 6/21 00:00:01 327kN >1...d5 2.e5 Ne4 3.Qe3 Rab8 4.Bxe7 Qxe7 5.h5 > ± (1.00) Depth: 7/22 00:00:02 738kN >1...d5 2.e5 Ne4 3.Nxe4 dxe4 4.Re3 Bxg5 5.hxg5 Rac8 6.gxh6 gxh6 > ± (0.92) Depth: 8/25 00:00:04 1861kN >1...d5 2.e5 Ne4 3.Qe3 Nxc3+ 4.Qxc3 Rdc8 5.Bxe7 Qxe7 6.Nxc6 Qd7 7.Nb8 Raxb8 > ± (0.92) Depth: 9/25 00:00:08 4350kN >1...d5 2.e5 Ne4 3.Qe3 Rac8 4.Nxc6 bxc6 5.g4 Rb8 6.Bxe7 Qxe7 7.Nxe4 dxe4 > ± (0.97) Depth: 10/28 00:00:19 10320kN > > >On November 21, 2003 at 17:13:49, ALI MIRAFZALI wrote: > >>In the following interesting position it takes over 19 hours for Chessmaster >>9000 (default)on my 1.8 gig computer to avoid 15..hxg5 and choose 15..Rac8. >>It is my guess that Fritz and Junior will not solve this. >>[D]r2r2k1/ppq1bpp1/2bppn1p/6B1/3NPP1P/2N5/PPPQ2P1/1K1RR3 b >>Analysis by Chessmaster 9000(default Personality): >>Time Depth Score Positions Moves >>0:02 1/9 -1.38 356913 15...hxg5 16.hxg5 Ne8 17.g6 Bf6 >> 18.Ncb5 Qd7 19.Nxc6 bxc6 20.gxf7+ >> Qxf7 >>0:07 1/10 -1.23 1021400 15...hxg5 16.hxg5 Nd7 17.g6 Nc5 >> 18.gxf7+ Kxf7 19.f5 e5 20.Nxc6 >> bxc6 21.Qe2 >>0:28 2/11 -1.13 3883272 15...hxg5 16.hxg5 Nh7 17.g6 Nf6 >> 18.gxf7+ Kxf7 19.f5 exf5 20.exf5 >> Kg8 21.Qe2 Re8 >>1:03 3/12 -1.08 9118689 15...hxg5 16.hxg5 Ne8 17.Qe3 g6 >> 18.Qh3 Bf8 19.f5 exf5 20.exf5 Bg7 >> 21.Nxc6 bxc6 22.fxg6 fxg6 >>2:53 4/13 -0.81 26353616 15...hxg5 16.hxg5 Ne8 17.Rh1 g6 >> 18.Qd3 Bf8 19.f5 exf5 20.exf5 Bg7 >> 21.fxg6 Bxg2 22.Rh7 >>9:47 5/14 -0.59 96074807 15...hxg5 16.hxg5 Ne8 17.Rh1 g6 >> 18.f5 exf5 19.exf5 Qa5 20.Nxc6 >> bxc6 21.fxg6 fxg6 22.Qd4 Ng7 23.Qc4+ >> d5 24.Qxc6 >>41:24 6/15 -0.19 431783244 15...hxg5 16.hxg5 Ne8 17.Rh1 g6 >> 18.f5 exf5 19.exf5 Qa5 20.Nxc6 >> bxc6 21.Qd4 Qe5 22.Qh4 Kf8 23.f6 >> Bxf6 24.gxf6 Nxf6 >>9:17:20 7/16 0.20 1564966390 15...hxg5 16.hxg5 Nxe4 17.Nxe4 >> Bxe4 18.Rxe4 d5 19.Ree1 g6 20.g4 >> Rac8 21.Rh1 Bf8 22.f5 Re8 23.fxg6 >> fxg6 24.Qd3 Qg7 25.Qe3 >>19:06:13 7/16 -0.29 3080132679 15...Rac8 16.g4 Nxg4 17.Rg1 h5 >> 18.Rdf1 Bxg5 19.hxg5 e5 20.Nxc6 >> bxc6 21.Rh1 exf4 22.Qxf4 Ne5 23.Rxh5 >> Qa5 >>Please indicate your result.
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