Author: John Merlino
Date: 13:39:04 12/12/02
Go up one level in this thread
On December 12, 2002 at 15:56:43, Omid David Tabibi wrote: >On December 12, 2002 at 15:07:47, John Merlino wrote: > >>On December 12, 2002 at 14:01:55, Gian-Carlo Pascutto wrote: >> >>>[D]rnbq1k1r/1p1nb3/p2pp2p/6PQ/4P2B/2N5/PPP3PP/R3KB1R w KQ - 0 13 >>> >>>From Tim Krabbe's site: Bb5! >>> >>>-- >>>GCP >> >>Chessmaster 9000, on a P3-733, finds it in 1 second, loses it at 25 seconds, and >>gets it back at 2:19. It still gives Black about a half-pawn advantage. Of >>course, on a top-end computer, another depth or two could give quite different >>results in this double-edged position.... >> >>Time Depth Score Positions Moves >>0:00 1/3 -0.31 4268 13.Bxa6 Ne5 14.O-O+ Kg8 >>0:00 1/4 -0.63 9097 13.Bxa6 Ne5 14.O-O+ Kg8 15.Bb5 >> Bxg5 16.Bxg5 Qxg5 >>0:00 1/5 -0.34 35390 13.Bxa6 Ne5 14.Bg3 Nbc6 15.O-O+ Kg8 >>0:01 1/6 -0.71 67135 13.Bxa6 Ne5 14.Bb5 Nbc6 15.O-O+ >> Kg8 16.Rae1 Bxg5 17.Bxg5 Qxg5 >>0:01 1/6 -0.60 87497 13.Bb5 Ne5 14.Bg3 Bxg5 15.O-O+ >> Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5 >>0:03 1/7 -0.60 208575 13.Bb5 Ne5 14.Bg3 Bxg5 15.O-O+ >> Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5 >>0:11 1/8 -1.22 904118 13.Bb5 Kg7 14.O-O Ne5 15.Bg3 Ng6 >> 16.Qf3 hxg5 17.Bc4 Qb6+ 18.Kh1 Qxb2 >>0:25 1/8 -1.19 2074905 13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7 >> 16.O-O b5 17.Bb3 Nbc6 >>0:39 1/9 -1.09 3331036 13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7 >> 16.O-O b5 17.Bb3 Nbc6 18.Rad1 >>1:38 1/10 -1.24 8769881 13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7 >> 16.O-O b5 17.Bb3 Nbc6 18.a3 d5 >>2:19 1/10 -0.46 12525813 13.Bb5 Kg7 14.O-O Qg8 15.g6 Nf6 >> 16.Bxf6+ Bxf6 17.Rxf6 Kxf6 18.Rf1+ >> Kg7 19.Rf7+ Qxf7 20.gxf7 axb5 21.Nxb5 >> Rxa2 22.Nxd6 Rxb2 >>4:02 2/11 -0.46 22342279 13.Bb5 Kg7 14.O-O Qg8 15.g6 Nf6 >> 16.Bxf6+ Bxf6 17.Rxf6 Kxf6 18.Rf1+ >> Kg7 19.Rf7+ Qxf7 20.gxf7 axb5 21.Nxb5 >> Rxa2 22.Nxd6 Rxb2 > >Finding 13.Bb5 should be very easy for every computer. This opening was first >introduced in a match between national teams of USSR and Argentina. The >Argentinians played this opening on several boards (not expecting 13.Bb5), all >the Russian Grandmasters found 13.Bb5 and went on to crush black. > >The key defence move is 13...Rh7 which the Argentinians didn't find. Does >Chessmaster manage to find that move? > It takes over 7 minutes on my humble P3-733, but CM9000 does find it and give it a drawish score: Time Depth Score Positions Moves 0:00 1/3 -1.57 3632 13...Ne5 14.O-O+ Kg8 15.Bc4 Qb6+ 16.Bf2 Qxb2 0:00 1/4 -0.77 10792 13...Ne5 14.Bg3 Bxg5 15.O-O+ Bf6 16.Rad1 0:00 1/5 -0.60 27066 13...Ne5 14.Bg3 Bxg5 15.O-O+ Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5 0:00 1/6 -0.60 72809 13...Ne5 14.Bg3 Bxg5 15.O-O+ Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5 0:02 1/7 0.22 149768 13...Ne5 14.Bg3 Kg7 15.Bxe5+ dxe5 16.O-O Rh7 17.Rf7+ Kh8 18.Rxh7+ Kxh7 19.Qxh6+ Kg8 0:07 1/7 -1.25 654151 13...Kg7 14.O-O Ne5 15.Bg3 Ng6 16.Qf3 hxg5 17.Bc4 Qb6+ 18.Kh1 Qxb2 0:16 1/8 -1.48 1610243 13...Kg7 14.O-O Ne5 15.Bg3 Ng6 16.Qf3 hxg5 17.Be2 Rf8 18.Qe3 Nc6 0:46 1/9 -0.50 4519555 13...Kg7 14.O-O Qg8 15.g6 Nf6 16.Qf3 Qd8 17.e5 dxe5 18.Rad1 1:56 1/10 -0.59 11892623 13...Kg7 14.O-O Qg8 15.g6 Nf6 16.Qf3 Qd8 17.e5 dxe5 18.Rad1 Qb6+ 19.Kh1 Rf8 3:36 2/11 0.04 21923698 13...Kg7 14.O-O Ne5 15.Bg3 Ng6 16.gxh6+ Rxh6 17.Rf7+ Kxf7 18.Qxh6 axb5 19.Rf1+ Ke8 20.Qxg6+ Kd7 21.Rd1 Nc6 22.Nxb5 7:16 2/11 -0.08 42609756 13...Rh7 14.O-O+ Kg8 15.g6 Rg7 16.Bxd7 Nxd7 17.Bxe7 Qxe7 18.Qxh6 Ne5 19.Rad1 Rxg6 15:10 3/12 -0.08 87819302 13...Rh7 14.O-O+ Kg8 15.g6 Rg7 16.Bxd7 Nxd7 17.Bxe7 Qxe7 18.Qxh6 Ne5 19.Rad1 Rxg6 jm
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.