Author: Uri Blass
Date: 08:37:13 07/28/05
Go up one level in this thread
On July 28, 2005 at 09:48:14, Manfred Meiler wrote: >On July 28, 2005 at 07:58:47, Uri Blass wrote: > >>On July 28, 2005 at 05:12:16, Vegadapirate wrote: >> >>>Here is one of G.Kasparov's best game of the century, his specially for his 2 >>>best tactical moves in the game Rxd4!!! (Maybe - '!!!!!!') >> >>Rxd4 is not winning. >> >> >> One of the most >>>incredible moves in all of chess. >> >>Not at all after Rxd4 Kb6 white is not better based on kasparov's notes. >>It is certainly a bad test position. > > >First of all, sorry for my poor english. I'm not one of the authors of the test >suite "WM-Test" so only one remark: >It's not always the goal of the test positions in WM-Test to find the WIN but >also to hold the BALANCE in the game by finding the claimed only solution move. > >To this position # 15 of WM-Test for example Deep Junior 8.ZX (after 10 minutes, >depth 16): > >Kasparov - Topalov, Wijk aan Zee 1999 >b2r3r/k4p1p/p2q1np1/NppP4/3p1Q2/P4PPB/1PP4P/1K1RR3 w - - 0 24 > >Analysis by Deep Junior 8.ZX: > >1. = (0.00): 1.Rxd4 cxd4 2.Re7+ Kb6 3.Qxd4+ Kxa5 4.b4+ Ka4 5.Qc3 Qxd5 6.Qc7 Qd1+ >7.Kb2 Qd4+ 8.Kb1 >2. µ (-1.13): 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Ra7 Kd5 6.Rxf7 Re8 >7.f4 >3. µ (-1.13): 1.Re5 Kb6 Note that Fruit2.1 does not agree that Rxd4 is the best move New game, b2r3r/k4p1p/p2q1np1/NppP4/3p1Q2/P4PPB/1PP4P/1K1RR3 w - - 0 1 Analysis by Fruit 2.1: 1.Qxd6 Rxd6 ² (0.66) Depth: 1/2 00:00:00 1.Qxd6 Rxd6 2.Re7+ Kb6 ± (1.01) Depth: 2/10 00:00:00 1.Qxd6 Rxd6 2.c4 Bb7 = (0.24) Depth: 3/14 00:00:00 1.Qxd6 Rxd6 2.c4 dxc3 3.Re7+ Kb6 ² (0.30) Depth: 4/18 00:00:00 1.Qxd6 Rxd6 2.b4 cxb4 3.Re7+ Kb8 4.axb4 Nxd5 = (0.23) Depth: 5/18 00:00:00 1.Qxd6 Rxd6 2.b4 cxb4 3.Re7+ Kb8 4.axb4 Nxd5 = (0.23) Depth: 6/20 00:00:00 83kN 1.Qxd6 Rxd6 2.b4 cxb4 3.Rxd4 bxa3 4.c4 Re8 5.Rxe8 Nxe8 ³ (-0.69) Depth: 7/20 00:00:00 246kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.f4 = (-0.22) Depth: 7/20 00:00:00 263kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 h6 6.Re7 Re8 = (-0.10) Depth: 8/26 00:00:00 412kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 6.f4 = (-0.22) Depth: 9/26 00:00:01 706kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 6.Ra7 Kb6 ³ (-0.37) Depth: 10/29 00:00:02 1448kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.Bd7 Nxd7 7.Rxd7 Rf6 8.f4 h6 ³ (-0.51) Depth: 11/29 00:00:04 3298kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.Bd7 Nxd7 7.Rxd7 Rf6 8.f4 h6 9.Ka2 ³ (-0.51) Depth: 12/34 00:00:07 6903kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.Bd7 Nxd7 7.Rxd7 Rf6 8.f4 h6 9.c3 Kc6 ³ (-0.49) Depth: 13/39 00:00:13 13738kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.Bf1 h6 7.Bd3 g5 8.f4 gxf4 9.gxf4 c4 10.Bf5 ³ (-0.48) Depth: 14/41 00:00:25 26227kN 1.Rxd4 Kb6 2.b4 Qxf4 3.Rxf4 Nxd5 4.Rxf7 cxb4 5.axb4 Nxb4 6.Nb3 Rdf8 7.Rxf8 Rxf8 8.f4 Bd5 9.Re7 ³ (-0.29) Depth: 14/50 00:01:20 79817kN 1.Rxd4 Kb6 2.b4 Qxf4 3.Rxf4 Nxd5 4.Rxf7 cxb4 5.axb4 Nxb4 6.Nb3 Rdf8 7.Rfe7 Bxf3 8.Kb2 Rd8 9.Bd7 ³ (-0.56) Depth: 15/50 00:01:48 108494kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.b4 Rd6 7.bxc5+ Kxc5 8.Kc1 Re2 9.Rd2 Re1+ 10.Kb2 h6 11.Rc7+ Kb6 12.Rc8 ³ (-0.48) Depth: 15/50 00:01:53 114126kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Rxc6 4.Re7+ Kb6 5.Rxf7 Re8 6.b4 Rd6 7.bxc5+ Kxc5 8.Kc1 Re3 9.Rd3 h6 10.Kd2 Re8 11.Rc7+ Kb6 12.Rc8 ³ (-0.57) Depth: 16/50 00:02:27 150498kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 6.f4 Re2 7.Bc8 a5 8.b4 cxb4 9.axb4 a4 10.Bb7+ Kb6 11.h4 ³ (-0.53) Depth: 17/50 00:04:25 275409kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 6.Kc1 h5 7.Bg2 Nd5 8.f4 Re2 9.Rd2 Rde6 10.Ra7 Rxd2 11.Bxd5+ Kxd5 12.Kxd2 ³ (-0.54) Depth: 18/50 00:07:17 455693kN 1.Nc6+ Bxc6 2.Qxd6 Rxd6 3.dxc6 Kb6 4.Re7 Kxc6 5.Rxf7 Re8 6.Kc1 h5 7.Bg2 Nd5 8.f4 Re2 9.Rd2 Re3 10.Bxd5+ Kxd5 11.Kd1 Rd8 12.Re2 ³ (-0.52) Depth: 19/50 00:14:35 902378kN (, 28.07.2005) The problem is that it believes that Rxd4 Kb6 gives bigger advantage for black. Uri
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