Author: George Tsavdaris
Date: 15:29:34 03/01/04
Go up one level in this thread
On March 01, 2004 at 18:01:21, Albert Silver wrote: >I had the pleasure of playing the following rook sac in a blitz game a short >while ago. Since it turned out to be correct, I submit it to the engine fiends. >It resists some engines a bit on my old hardware, so it might make an >interesting addition to some test suite. > >[D]r2r2k1/ppq1bp2/2p1pnpB/8/1PP5/P1N3RP/2P1QPP1/4R1K1 w - - > >The key move is (rather obvious for a human though it needs to be worked out) >1.Rxg6! followed by fxg6 2.Qxe6+ Kh7 3.Qf7+ Kxh6 4.Rxe7 Qd6 5.Qg7+ followed by >the knight joining in. > >In the game my opponent dropped the knight with 4...Qc8 and resigned. > > Albert Hi, can you give the whole game? The first engine come to my mind was Deep Junior 8.ZX. Of course, it found this immediately. Analysis by Deep Junior 8.ZX: 1.b4-b5 Rd8-d4 ± (0.96) Depth: 3 00:00:00 1.Rg3-d3 a7-a6 ± (1.06) Depth: 3 00:00:00 1.Re1-d1 Rd8xd1+ 2.Qe2xd1 ± (1.10) Depth: 3 00:00:00 1.Qe2-e5 Qc7xe5 2.Re1xe5 ± (1.23) Depth: 3 00:00:00 1.Qe2-e3 a7-a6 ± (1.24) Depth: 3 00:00:00 1.Qe2-e3 Be7-d6 2.Rg3-f3 Bd6-h2+ 3.Kg1-h1 Nf6-d7 ± (1.33) Depth: 6 00:00:00 3kN 1.Qe2-e3 a7-a5 2.Bh6-f4 Be7-d6 3.Bf4xd6 Qc7xd6 4.Re1-d1 Qd6-e7 5.Qe3-e5 a5xb4 ± (1.07) Depth: 9 00:00:00 95kN 1.Qe2-f3 Rd8-d4 2.Nc3-e4 Nf6xe4 3.Re1xe4 Ra8-d8 4.Bh6-f4 ± (1.11) Depth: 9 00:00:00 95kN 1.c4-c5 a7-a5 2.Qe2-c4 a5xb4 3.Bh6-f4 Qc7-d7 4.Qc4xb4 ± (1.15) Depth: 9 00:00:00 144kN 1.Rg3xg6+! +- (1.63) Depth: 9 00:00:00 234kN 1.Rg3xg6+ f7xg6 2.Qe2xe6+ Kg8-h7 3.Bh6-g5 Be7-c5 4.Bg5xf6 Rd8-e8 5.Qe6xe8 Bc5xf2+ 6.Kg1-h1 Ra8xe8 7.Re1xe8 +- (1.68) Depth: 9 00:00:00 234kN 1.Rg3xg6+ f7xg6 2.Qe2xe6+ Kg8-h7 3.Bh6-g5 Be7-d6 4.Bg5xf6 Rd8-e8 5.Qe6xe8 Bd6-h2+ 6.Kg1-h1 Ra8xe8 +- (1.72) Depth: 12 00:00:03 2603kN 1.Rg3xg6+! +- (2.02) Depth: 15 00:00:35 26293kN
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