Author: B. Clark
Date: 23:50:10 02/17/03
Go up one level in this thread
On February 17, 2003 at 20:01:18, Matthew White wrote: >[D]b2r3r/k4p1p/p2q1np1/NppP4/3p1Q2/P4PPB/1PP4P/1K1RR3 w - - 0 24 > >The key move is Rxd4!(or !! depending on who you ask) after which the game >continued cxd4? Re7+!! Kb6 Qxd4+ Kxa5 b4 Ka4, etc. From Kasparov-Topalov, Wijk >aan Zee 1999. None of the programs I have tried so far can see this within 10 >minutes or so. I'm thinking that materialism, coupled with the overwhelming >desire to move the knight off of a5 prevent most programs from seeing this. > >Matt New position b2r3r/k4p1p/p2q1np1/NppP4/3p1Q2/P4PPB/1PP4P/1K1RR3 w - - 0 1 Fritz 6 finds Rxd4 in 32 seconds (P4, 1.7 Ghz) Analysis by Fritz 6: 1.Qxd6 = (0.22) Depth: 1/3 00:00:00 1.Qxd6 Rxd6 2.Re7+ Kb6 = (0.09) Depth: 2/9 00:00:00 1.Qxd6 = (-0.22) Depth: 3/14 00:00:00 1kN 1.Qxd6 Rxd6 2.Nb3 Bxd5 3.Nxc5 Bxf3 ³ (-0.56) Depth: 3/15 00:00:00 1kN 1.Nc6+ ³ (-0.50) Depth: 3/15 00:00:00 2kN 1.Nc6+ Bxc6 ³ (-0.44) Depth: 3/15 00:00:00 2kN 1.Re5 ³ (-0.41) Depth: 3/15 00:00:00 2kN 1.Re5 Bxd5 2.Rde1 = (-0.22) Depth: 3/15 00:00:00 3kN 1.Re5 Bxd5 2.Rd3 Rhe8 3.Rxe8 Nxe8 ³ (-0.41) Depth: 4/14 00:00:00 4kN 1.Re5 Bxd5 2.Rd3 Rhe8 3.Rxe8 Nxe8 ³ (-0.41) Depth: 5/19 00:00:00 20kN 1.Nc6+! ³ (-0.37) Depth: 5/19 00:00:00 21kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 ³ (-0.28) Depth: 5/19 00:00:00 22kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 ³ (-0.44) Depth: 6/18 00:00:00 41kN 1.Qxd6! ³ (-0.41) Depth: 6/21 00:00:00 51kN 1.Qxd6 Rxd6 2.b4 cxb4 3.Re7+ Kb6 ³ (-0.28) Depth: 6/21 00:00:00 59kN 1.Qxd6-- ³ (-0.59) Depth: 7/22 00:00:00 125kN 1.Qxd6 Rxd6 2.Nc6+ Kb6 3.Ne7 Bb7 4.f4 Rhd8 5.Bg2 Nxd5 µ (-1.00) Depth: 7/24 00:00:00 202kN 1.Nc6+ µ (-0.97) Depth: 7/28 00:00:00 272kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 ³ (-0.44) Depth: 7/28 00:00:00 278kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 ³ (-0.53) Depth: 8/18 00:00:00 399kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 ³ (-0.69) Depth: 9/26 00:00:01 1023kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 ³ (-0.66) Depth: 10/25 00:00:03 2695kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.f4 Nd5 µ (-0.75) Depth: 11/28 00:00:06 5605kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.c7 Kxc7 5.Re7+ Kc6 ³ (-0.69) Depth: 12/30 00:00:13 13733kN 1.Rxd4 ³ (-0.66) Depth: 12/33 00:00:32 33678kN 1.Rxd4 Kb6 2.Nb3 Bxd5 3.Qxd6+ Rxd6 4.Rdd1 Rhd8 ³ (-0.53) Depth: 12/33 00:00:44 46811kN 1.Rxd4 Kb6 2.Nb3 Bxd5 3.Qxd6+ Rxd6 4.Rd2 Rhd8 5.Red1 Ne8 ³ (-0.53) Depth: 13/38 00:01:10 72542kN 1.Rxd4 Kb6 2.Nb3 Bxd5 3.Rxd5 Nxd5 4.Qxf7 Rhf8 5.Qxh7 Rh8 ³ (-0.44) Depth: 14/41 00:03:40 233959kN 1.Rxd4 Kb6 2.Nb3 Bxd5 3.Rxd5 Nxd5 4.Qxf7 Rhf8 5.Qxh7 Rh8 ³ (-0.41) Depth: 15/43 00:09:00 576561kN 1.Rxd4 Kb6 2.Nb3 Bxd5 3.Rxd5 Nxd5 4.Qxf7 Nc7 5.Qg7 c4 ³ (-0.37) Depth: 16/43 00:24:03 1496906kN 1.Rxd4 Kb6 2.b4 Qxf4 3.Rxf4 Nxd5 4.Rxf7 ³ (-0.50) Depth: 17/45 00:57:30 3684315kN (Clark, Las Vegas 17.02.2003)
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