Author: chandler yergin
Date: 10:54:43 10/10/05
Go up one level in this thread
On October 10, 2005 at 13:30:22, David Shanholtzer wrote: >Below should be a diagram and position fen from Svidler-Topalov, FIDE Ch >currently underway. > >L. Kavalek in his column mentions Shredder suggesting the continuation of >15...Nf3+!: "A piercing combination that is sufficient for a draw. Topalov >picked it up from his second, Ivan Cheripanov. It was also suggested by the >computer program Shredder." > >Curious, I inserted the position into my older computer to see at what depth >Shredder 9 would pick up on this. This particular computer is a Dell 866 MHz cpu >with 512 Megs of RAM and WinXP SP 2. Fritz 8 GUI. > >Shredder 9 came up with the continuation 15...Nf3+! at 13 ply. > > >[D] r3k2r/1p3pb1/p1npp2p/q3nPp1/8/2P1N1BP/PP3PP1/R2QKB1R b - - 0 15 > >Additionally, > >Fritz 8 settled on 15...Nf3+! after 11 ply. Toga II v. 1.0 after 12 ply. Junior >9 took 14 ply, Gambit Tiger 2.0 10 ply, and Hiarcs 9 9 ply. Interestingly, to >me, CM9k Slayer took 7 ply, discarded it, came back to it after 9 play and >settled there. CMX Dayffd 4.3 took 10 ply. I've not had any other engines take a >look at it. > >Out of curiosity, and for anyone that would care to give it a quick look, are >these ply depths similar to what others obtain to find 15...Nf3+? (FWIW, CMX >Dayffd 4.3 is not yet publicized, and I'm not sure it is quite strong enough.) New game, r3k2r/1p3pb1/p1npp2p/q3nPp1/8/2P1N1BP/PP3PP1/R2QKB1R b - - 0 1 Analysis by Shredder 8: 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 1...Qb6 2.Rb1 = (0.10) Depth: 8/8 00:00:00 8kN 1...Qb6 2.Rb1 Ke7 3.Be2 Rhd8 4.Kf1 Kf8 5.fxe6 = (0.08) Depth: 8/26 00:00:00 96kN 1...Qb6 2.Qb3 Qxb3 3.axb3 Rd8 4.fxe6 Ke7 5.exf7 Rdg8 6.fxg8Q ² (0.33) Depth: 9/28 00:00:01 575kN 1...Qb6 2.Qb3 Qxb3 3.axb3 d5 4.Rd1 Nd7 5.Bd6 Rd8 6.fxe6 fxe6 7.Bd3 ² (0.61) Depth: 9/28 00:00:02 741kN 1...Ke7 2.Be2 Rhd8 3.Kf1 Qb6 4.fxe6 Qxb2 ² (0.60) Depth: 9/28 00:00:02 856kN 1...Ke7 2.Be2 Rhd8 3.Kf1 Qb6 4.fxe6 fxe6 5.Qxd6+ = (0.25) Depth: 9/28 00:00:03 944kN 1...Ke7 2.Be2 Rhd8 3.Kf1 Qb6 4.Kg1 Qxb2 = (0.23) Depth: 9/28 00:00:03 1081kN 1...Ke7 2.Be2 Rhd8 3.Kf1 Qb6 4.fxe6 fxe6 5.Kg1 Qxb2 = (0.23) Depth: 10/29 00:00:06 1586kN 1...Ke7 2.Be2 Rhd8 3.Kf1 Rac8 4.Kg1 Qc7 5.fxe6 ² (0.47) Depth: 11/31 00:00:11 3069kN 1...Qb6 2.Qb3 Qxb3 3.axb3 d5 4.Bb5 Ke7 5.Bxc6 bxc6 6.Ra5 ² (0.46) Depth: 11/31 00:00:12 3389kN 1...Qb6 2.Qb3 Qxb3 3.axb3 d5 4.Rd1 Nd7 5.fxe6 fxe6 6.Be2 Nc5 7.Bh5+ Ke7 ² (0.45) Depth: 11/31 00:00:14 3908kN 1...Kd7 2.Bc4 Rhc8 3.Kf1 Qb6 ² (0.44) Depth: 11/31 00:00:17 5043kN 1...Kd7 2.Be2 Qc5 3.Kf1 Raf8 4.Qb3 exf5 ² (0.42) Depth: 11/33 00:00:27 7926kN 1...d5 2.fxe6 fxe6 3.Be2 Qb6 4.Kf1 Rf8 5.Bh5+ Kd7 ² (0.41) Depth: 11/33 00:00:31 9144kN 1...d5 2.fxe6 fxe6 3.Be2 Rf8 4.Qb3 Qc7 5.Bh5+ Kd7 6.Kf1 Rad8 = (0.23) Depth: 11/35 00:00:34 10047kN 1...d5 2.fxe6 fxe6 3.Be2 Rf8 4.Qc2 Qb6 5.Rb1 Rd8 6.Bxe5 Bxe5 = (0.18) Depth: 12/33 00:00:43 12342kN 1...d5 2.fxe6 fxe6 3.Be2 Qb6 4.Qc2 Kd7 5.Qb3 Qa7 6.Kf1 Rhf8 ² (0.28) Depth: 13/39 00:01:07 19716kN 1...Nf3+ 2.Ke2 Nfd4+ 3.cxd4 Nxd4+ 4.Kd3 Qb5+ 5.Kd2 Qxb2+ 6.Qc2 Qxa1 7.Bxd6 ² (0.27) Depth: 13/41 00:01:24 25145kN (, 10.10.2005)
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