Author: Uri Blass
Date: 10:46:51 12/26/05
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On December 26, 2005 at 09:51:25, Majd Al-Ansari wrote: >Thank you very much for sharing this interesting game. What version of Rybka >was it played on and what hardware? It seems that Rybka here did not take >advantage of an open "b" file and left that file open thus allowing white to >mount an attack on the kingside. When I run my Rybka I cannot reproduce move >16. Nb4? which was an obvious waste of time. Rybka finds Nb4 and changes it's mind later B-Amin - tribbles, ICC 3 3 Internet Chess Club 2005 r4rk1/p2q1pbp/b1n1p1p1/2p1Pn2/2Pp3P/3P1NP1/P3QPB1/R1B1RNK1 b - - 0 1 Analysis by Rybka 1.0 Beta 32-bit: 16...Rab8 = (-0.22) Depth: 3 00:00:00 16...Rab8 = (-0.17) Depth: 4 00:00:00 16...Rab8 17.g4 = (-0.17) Depth: 5 00:00:00 16...Rab8 17.N1d2 Qc7 = (-0.15) Depth: 6 00:00:00 23kN 16...Rfb8 17.g4 Nh6 = (-0.20) Depth: 6 00:00:00 36kN 16...Rfb8 17.N1d2 Qe7 18.Nb3 = (0.01) Depth: 7 00:00:00 62kN 16...Rab8 17.N1d2 Rfc8 18.g4 = (-0.08) Depth: 7 00:00:00 71kN 16...Nb4 17.g4 Nh6 18.a3 = (-0.10) Depth: 7 00:00:01 77kN 16...Nb4 17.g4 Nh6 18.a3 Nc6 = (-0.08) Depth: 8 00:00:01 145kN 16...Nb4 17.g4 Nh6 18.Ng5 Bb7 19.Bxb7 = (0.00) Depth: 9 00:00:02 240kN 16...Rab8 17.N1d2 Rfc8 18.g4 Nfe7 19.Nb3 = (-0.08) Depth: 9 00:00:03 268kN 16...Rab8 17.N1d2 Rfc8 18.g4 Nfe7 19.Nb3 Nb4 = (-0.04) Depth: 10 00:00:05 477kN (, 26.12.2005) Thne move 20. Rac8? why not Rb8 >(which my Rybka wants to play). My rybka does not likes Rb8 but Rac8 after a very long search It needs more than 18 minutes to find that move. B-Amin - tribbles, ICC 3 3 Internet Chess Club 2005 r4rk1/p2q1pb1/b1n1p1p1/2p1Pn2/2Pp2NP/P2P1N2/4QPB1/R1B1R1K1 b - - 0 1 Analysis by Rybka 1.0 Beta 32-bit: 20...Rab8 = (-0.13) Depth: 3 00:00:00 20...Rab8 = (-0.13) Depth: 4 00:00:00 20...Rab8 21.Bf4 = (-0.07) Depth: 5 00:00:00 20...Rfb8 21.a4 = (-0.11) Depth: 5 00:00:00 20...Rfb8 21.Nf6+ Bxf6 22.exf6 Rb3 = (0.19) Depth: 6 00:00:00 18kN 20...Rab8 21.Bf4 Qe7 = (0.00) Depth: 6 00:00:00 22kN 20...Rab8 21.Bf4 Qc7 22.Qd2 = (-0.08) Depth: 7 00:00:00 36kN 20...Rab8 21.Nf6+ Bxf6 22.exf6 Rfc8 23.h5 gxh5 ² (0.42) Depth: 8 00:00:01 87kN 20...Qe7 21.Bg5 Qc7 22.Nf6+ Bxf6 23.exf6 Rab8 = (0.16) Depth: 8 00:00:01 100kN 20...Qe7 21.Bg5 Qc7 22.Nf6+ Bxf6 23.Bxf6 Rab8 24.Rab1 ² (0.26) Depth: 9 00:00:02 164kN 20...Qe7 21.Bg5 Qc7 22.Nf6+ Kh8 23.Rab1 Rab8 24.h5 ² (0.37) Depth: 10 00:00:04 312kN 20...Qe7 21.Bg5 Qc7 22.Nf6+ Kh8 23.Rab1 Rab8 24.h5 Rfc8 ² (0.37) Depth: 11 00:00:09 713kN 20...Qe7 21.Bg5 Qc7 22.h5 Rfb8 23.h6 Bf8 24.Rab1 Bb7 ± (0.80) Depth: 12 00:00:15 1224kN 20...Qe7 21.Bg5 Qc7 22.h5 Rab8 23.h6 Bh8 24.Nf6+ Bxf6 25.exf6 ± (0.95) Depth: 13 00:00:52 4394kN 20...Kh8 21.h5 Rfc8 22.h6 Bf8 23.Rb1 Bb7 24.Bg5 Rab8 25.Nh4 ± (0.88) Depth: 13 00:01:38 8411kN 20...Kh8 21.h5 Rfc8 22.h6 Bf8 23.Rb1 Bb7 24.Bg5 Rab8 25.Nh4 ± (0.88) Depth: 14 00:01:45 9023kN 20...Kh8 21.h5 Rfb8 22.hxg6 fxg6 23.Ng5 Bb7 24.Qf3 Kg8 25.Nf6+ +- (1.99) Depth: 15 00:04:36 21703kN 20...Qe7 21.Bg5 Qc7 22.h5 Rfb8 23.h6 Bf8 24.Rab1 Bb7 25.Nh4 ± (1.08) Depth: 15 00:05:05 23767kN 20...Qe7 21.h5 Bb7 22.Bg5 Qc7 23.h6 Bh8 24.Nh4 Na5 25.Nxf5 ± (1.35) Depth: 16 00:10:09 46394kN 20...Rac8 21.Nf6+ Bxf6 22.exf6 Qd8 23.Bg5 Kh8 24.h5 Rg8 25.Rab1 ± (1.31) Depth: 16 00:18:28 82008kN 20...Rac8 21.Nf6+ Bxf6 22.exf6 Qd8 23.Bg5 Kh7 24.Rab1 Qd6 25.Bd2 ± (1.36) Depth: 17 00:21:55 97752kN (, 26.12.2005) Nothing strange in the moves that were played. Uri
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