Author: ALI MIRAFZALI
Date: 15:37:36 02/28/06
Go up one level in this thread
On February 28, 2006 at 17:33:41, ALI MIRAFZALI wrote: >In the following position >[D]q3nrk1/4bppp/3p4/r3nPP1/4P2P/NpQ1B3/1P4B1/1K1R3R b >Three different versions of Chessmaster find this move at progressively deeper >and deeper plys : CM 8000 at ply 13 ;CM 9000 at ply 14 and CM 10th edition at >ply 15.This is by no means unique as it seems that in a lot of difficult tacital >positions the later versions of Chessmaster find the key moves later! >Here is what CM 9000 says at 1.4 gigahertz: >Time Depth Score Positions Moves >1:04 2/11 1.05 13522073 24...Ra4 25.Rd4 Rxd4 26.Bxd4 Qa4 > 27.Rh3 Bd8 28.Bxe5 dxe5 29.Qxe5 > Qa7 30.Qh2 Bc7 31.e5 >5:57 3/12 0.90 68278413 24...Ra4 25.Rd4 Rxd4 26.Bxd4 Qa4 > 27.Rh3 Bd8 28.Bxe5 dxe5 29.Qxe5 > Qa7 30.Qf4 Bc7 31.e5 Qc5 >13:47 4/13 1.13 177330212 24...Ra4 25.Rd4 Rxd4 26.Bxd4 Qa4 > 27.Rh3 f6 28.gxf6 Nxf6 29.Qxb3+ > Qxb3 30.Rxb3 Nfd7 31.Nb5 Rc8 >40:24 4/13 0.92 510414081 24...Ra6 25.Bd4 Rc6 26.Qxb3 Nc7 > 27.g6 hxg6 28.fxg6 Nxg6 29.h5 Ne5 > 30.h6 Rb8 31.Qg3 Bf6 32.hxg7 Bxg7 >1:35:00 5/14 0.77 1245805375 24...Ra6 25.h5 h6 26.f6 Nxf6 27.gxf6 > Bxf6 28.Bc1 Rc8 29.Qh3 Rb8 30.Rhf1 > Qc6 31.Qc3 Qxc3 32.bxc3 >2:59:10 5/14 0.51 2349982270 24...Nc7 25.Qxc7 Rc8 26.Qxe7 Nc4 > 27.g6 hxg6 28.Bd4 Qc6 29.Kc1 Rxa3 > 30.bxa3 Nb2+ 31.Kd2 Qc2+ 32.Ke3 > Nxd1+ 33.Rxd1 Qxd1 34.Qxd6 gxf5 > 35.exf5 As Reported in this forum by other people Rybka needs more than the 13 ply of CM 8000 or the 14 ply of CM 9000 to find this.
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