Author: Steven Edwards
Date: 15:45:23 04/09/05
Go up one level in this thread
On April 09, 2005 at 18:31:44, Rob Basham wrote: >[D]2kr3r/1pp1bppp/p1pq1n2/4p3/4P3/P1NP3P/1PP1QPP1/R1B2RK1 b - - 0 1 > >In a game, At this point...Mephisto Polgar plays h5 in about 20 or 25 seconds, >but Mach 3 takes 7 ply and 16 minutes to play h7-h5....!! > >Some engines do not play h5 at all here..etc. > >this is interesting.....but probably not a good test move...:-) Here's an excerpt from Symbolic's toolkit search: [SI] [08] Starting the eighth iteration. [SI] [08] (1... Qe6 2. f4 h5 3. fxe5 Qxe5 4. Bf4 Qd4+ 5. Be3 Qe5 6. Bf4) S: -0.049 [SI] [08] (1... h5 2. Be3 h4 3. f4 exf4 4. Bxf4 Qd4+ 5. Qe3 Bc5 6. Qxd4 Bxd4+ 7. Kh1) S: -0.042 [SI] [08] (1... g6 2. Be3 Qe6 3. f4 exf4 4. Bxf4 Nh5 5. Be3 Ng3) S: -0.041 [SI] [08] Result PM: g6 score: -0.041 [SI] [08] Result PV: (1... g6 2. Be3 Qe6 3. f4 exf4 4. Bxf4 Nh5 5. Be3 Ng3) [SI] [08] Iteration: nodes: 1,200,972 clock: 12.90 usage: 12.28 [SI] [08] Cumulative: nodes: 1,356,296 clock: 15.97 usage: 14.20 [SI] [08] 97.799 KHz 10.2251 us [SI] [09] Starting the ninth iteration. [SI] [09] (1... g6 2. f4 h5 3. fxe5 Qxe5 4. Bf4 Qd4+ 5. Be3 Qe5 6. Bf4) S: -0.031 [SI] [09] (1... h5 2. Be3 h4 3. b4 b6 4. Rfe1 Kb8) S: -0.030 [SI] [09] Result PM: h5 score: -0.030 [SI] [09] Result PV: (1... h5 2. Be3 h4 3. b4 b6 4. Rfe1 Kb8) [SI] [09] Iteration: nodes: 4,004,429 clock: 44.70 usage: 40.55 [SI] [09] Cumulative: nodes: 5,360,725 clock: 01:00.69 usage: 54.75 [SI] [09] 98.7529 KHz 10.1263 us [SI] [10] Starting the tenth iteration. [SI] [10] (1... h5 2. Be3 h4 3. b4 Qe6 4. Na4 b6 5. f4 exf4 6. Bxf4 Nh5) S: -0.022 [SI] [10] Result PM: h5 score: -0.022 [SI] [10] Result PV: (1... h5 2. Be3 h4 3. b4 Qe6 4. Na4 b6 5. f4 exf4 6. Bxf4 Nh5) [SI] [10] Iteration: nodes: 7,174,146 clock: 01:25.52 usage: 01:16.24 [SI] [10] Cumulative: nodes: 12,534,871 clock: 02:26.21 usage: 02:10.99 [SI] [10] 94.0995 KHz 10.627 us
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