Author: Jorge Pichard
Date: 14:00:12 02/25/04
Go up one level in this thread
On February 25, 2004 at 15:57:36, Jorge Pichard wrote: >On February 25, 2004 at 07:46:49, James T. Walker wrote: > >>Here is analysis by shredder 8 on a 2Ghz AMD. Notice it has Qe3+ from 3 sec to >>1:34 sec and then gets it again at 5:54. So it's a crap shoot as to whether it >>will actually play the move in a game (depends on the cpu speed/time >>control/hash table etc. etc.). > Another thing If you take a position like this at move 52...Qe3+ which was played by Botvinnik, in order to simulate the actual game in progress you need to calculate approximately how many seconds per move as an average a computer take to select Qe3+ using the time control that Botvinnik was using. I would say that by you analysing that position with shredder 8, your computer came withing the same range of time that it took Botvinnik to select Qe3+ which was 30 seconds. Assuming that an Athlon 1.2 GHz with Shredder8 could be rated close to Botvinnik by using the same amount of time that it took him to calculate Qe3+, it will take your AMD 2GHz probably no more than 20 seconds to select Qe3+. Therefore, your Analysis with your computer indicated that it would have chosen Qe3+ too, since it selected Qe3+ from 3 sec to 1:34 seconds. Jorge > >>New game >>8/kp6/P5p1/2p1p3/2PpP3/3P3Q/4q3/6K1 b - - 0 1 >> >>Analysis by Shredder 8: >> >>1...Qe1+ 2.Kg2 Kxa6 3.Qc8 Kb6 4.Qc6+ Kxc6 >> ยต (-1.01) Depth: 1/1 00:00:00 >>1...Kxa6 2.Qe6+ b6 3.Qc6 Qe3+ 4.Kg2 Qg5+ 5.Kf1 Qc1+ 6.Kg2 Qc2+ 7.Kg1 Qd2 >> -+ (-2.82) Depth: 5/17 00:00:00 >> -+ (-2.07) Depth: 8/23 00:00:00 72kN >>1...Qe1+ 2.Kg2 Qd2+ 3.Kh1 Qc1+ 4.Kg2 Qg5+ 5.Kh2 Kxa6 6.Qd7 Qf4+ 7.Kh1 Qc1+ 8.Kg2 >>Qd2+ 9.Kg1 Ka5 10.Qxb7 Qc1+ 11.Kg2 Qc2+ 12.Kg1 Qc1+ 13.Kg2 Qc2+ 14.Kg1 Qc1+ >>15.Kg2 >> -+ (-2.08) Depth: 8/23 00:00:00 76kN >> -+ (-2.98) Depth: 12/31 00:00:02 774kN, tb=4 >>1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 Ka6 5.Ke2 Ka5 6.Kxe3 Kb4 7.Kd2 g5 8.Kc2 >>g4 9.Kd2 g3 10.Ke2 Kc3 11.Ke3 g2 12.Kf2 Kxd3 13.Kxg2 Kxc4 14.Kf2 >> -+ (-2.99) Depth: 12/32 00:00:03 1048kN, tb=27 >> -+ (-3.26) Depth: 18/40 00:00:56 19571kN, tb=4846 >>1...Qe1+ 2.Kg2 Qd2+ 3.Kh1 Qc1+ 4.Kg2 Qb2+ 5.Kg1 Kxa6 6.Qc8 Qc1+ 7.Kg2 Qc2+ 8.Kh1 >>Qxd3 9.Qa8+ Kb6 10.Qd8+ Kc6 11.Qf6+ Kd7 12.Qg7+ Ke6 13.Qg8+ Kf6 14.Qd8+ Kf7 >>15.Qd7+ Kf8 >> -+ (-3.27) Depth: 18/44 00:01:34 37617kN, tb=6412 >> -+ (-3.23) Depth: 19/48 00:05:53 157597kN, tb=22072 >>1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 Ka6 5.Ke2 Ka5 6.Kxe3 Kb4 7.Kd2 g5 8.Kd1 >>Kc3 9.Ke2 g4 10.Ke3 g3 11.Ke2 g2 12.Kf2 Kxd3 13.Kg1 >> -+ (-3.24) Depth: 19/48 00:05:54 158020kN, tb=22269 >> -+ (-4.39) Depth: 19/48 00:05:56 158286kN, tb=23155 >> >>(, 25.02.2004)
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