Author: ALI MIRAFZALI
Date: 14:33:41 02/28/06
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
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