Author: Joost Buijs
Date: 02:51:45 07/22/03
Go up one level in this thread
On July 21, 2003 at 22:25:59, Omid David Tabibi wrote: >After Tiger accepted the rook sacrifice by 29... Bxa1 it reached the following >position: > >Ilya Smirin - Gambit Tiger >[D]r4k2/1p2q2p/1Q2bp1P/rP2p1p1/P2pP3/3P2P1/3N1PBK/b1R5 w - - 0 30 > >I tested many programs, but none manage to find the winning variation for white, >nor do they even evaluate the position as favorable for white. Does any engine >manage to find the winning variation? > >The winning variation, as played in the game, is: >30. Rc7 Qd8 31. Bh3 g4 32. Bxg4 Bxg4 33. Qc5+ Ke8 34. Rxh7 +- I tried the position on Deep Junior8 ZX, as you can see it finds the variation almost instantly. New game r4k2/1p2q2p/1Q2bp1P/rP2p1p1/P2pP3/3P2P1/3N1PBK/b1R5 w - - 0 1 Analysis by Deep Junior 8.ZX: 1.Nc4 Rxa4 2.Nd6 -+ (-2.62) Depth: 3 00:00:00 1.Rc7 Qe8 2.Rxh7 Qh5+ 3.Kg1 = (-0.17) Depth: 3 00:00:00 2kN 1.Rc7 Qd8 2.Qc5+ Kg8 3.Qb6 = (0.00) Depth: 6 00:00:00 10kN 1.Rc7 Qd8 2.Qc5+ Kg8 3.Qb6 = (0.00) Depth: 6 00:00:00 10kN 1.Rc7 Qd8 2.Qc5+ Kg8 3.Qb6 = (0.00) Depth: 6 00:00:00 10kN 1.Rc7 Qd8 2.Qc5+ Kg8 3.Qb6 = (0.00) Depth: 6 00:00:00 10kN 1.Rxa1 g4 2.Nc4 Rxa4 3.Rc1 = (0.07) Depth: 6 00:00:00 15kN 1.Rxa1 Rxa4 2.Rc1 Rc8 3.Rxc8+ Bxc8 4.Nc4 Bg4 ³ (-0.42) Depth: 9 00:00:00 71kN 1.Rc7 Qd8 2.Nc4 Rxa4 3.Rxh7 Bxc4 4.Rh8+ Bg8 5.h7 Qxb6 6.hxg8Q+ Ke7 = (0.24) Depth: 9 00:00:01 97kN 1.Rc7 Qd8 2.Nc4 Rxa4 3.Nxe5 Rc8 4.Ng6+ hxg6 5.h7 Rxc7 6.h8Q+ Bg8 7.Qhxf6+ Qxf6 8.Qxf6+ Rf7 9.Qd8+ Kg7 ² (0.29) Depth: 12 00:00:01 2002kN 1.Rc7! ² (0.59) Depth: 15 00:00:06 13024kN 1.Rc7 Qd8 2.Bh3 Bxh3 3.Qc5+ Ke8 4.Rxh7 Be6 5.Rg7 Qd7 6.Nc4 Rxa4 7.Nd6+ Kf8 8.Rxd7 Bxd7 9.h7 ± (1.37) Depth: 15 00:00:14 36652kN 1.Rc7! +- (1.67) Depth: 17 00:01:08 160440kN
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.