Author: Mogens Larsen
Date: 18:23:33 12/19/00
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On December 19, 2000 at 20:30:27, James T. Walker wrote: >>>[D]8/6KP/2r1k3/8/p7/P7/1P5P/8 b - - 0 0 >I find this very interesting since Shredder 5 on my Athlon 900/256M (128M hash) >will not find a positive score even after 5-1/2 minutes. But it is probing the >tablebases. Can you try this again with a clean start (right after boot up)? I tried it on my Athlon 800 with 64Mb hash, without and with tablebases, and got this result. Engine: Shredder 5 by Stefan Meyer-Kahlen 14.01 0:00 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (282.933) 317.9 15.01 0:01 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (448.095) 324.7 16.01 0:02 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (738.427) 327.6 17.01 0:03 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (1.143.550) 332.0 18.01 0:05 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (1.957.113) 336.3 19.01 0:10 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (3.439.884) 343.8 20.01 0:15 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (5.427.644) 351.1 21.01 0:23 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (8.094.019) 348.8 22.01 0:34 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (11.946.652) 349.7 23.01 0:49 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (17.366.730) 349.5 24.01 1:41 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (34.542.353) 339.5 25.01 3:11 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (64.873.063) 338.5 best move: Rc6-c7 time: 3:17.099 min n/s: 337.789 nodes: 66.572.990 12.01 0:00 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (88.749) 118.1 13.01 0:01 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (160.037) 149.1 14.01 0:01 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (263.980) 166.2 15.01 0:02 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (410.024) 188.8 16.01 0:03 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (655.724) 206.0 17.01 0:05 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (1.031.793) 189.5 18.01 0:08 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (1.788.936) 203.1 19.01 0:12 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (2.848.467) 222.7 20.01 0:20 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (4.397.479) 215.4 21.01 0:30 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (6.506.814) 212.5 22.01 0:43 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (9.460.774) 216.8 23.01 1:02 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (13.709.335) 219.0 24.01 2:18 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (30.448.943) 220.3 25.01 4:27 0.00 1...Rc7+ 2.Kg8 Rc8+ 3.Kg7 Rc7+ 4.Kg8 (55.066.299) 205.6 best move: Rc6-c7 time: 4:32.347 min n/s: 203.853 nodes: 55.516.748 TB: 66.028 I can't reproduce Ingo's result. As a note; TB access is displayed after interrupting analysis, not after each line. The "Really Shredder?" personality does better. It was just a random test. Engine: Really Shredder? by Stefan Meyer-Kahlen 14.01 0:00 0.00 1...Rc7+ 2.Kg6 Rc8 3.Kg7 Rc7+ 4.Kg6 (192.447) 296.0 15.01 0:01 0.00 1...Rc7+ 2.Kg6 Rc8 3.Kg7 Rc7+ 4.Kg6 (318.674) 304.3 16.01 0:01 0.00 1...Rc7+ 2.Kg6 Rc8 3.Kg7 Rc7+ 4.Kg6 (479.415) 310.3 17.01 0:02 0.00 1...Rc7+ 2.Kg6 Rc8 3.Kg7 Rc7+ 4.Kg6 (723.875) 314.7 18.01 0:03 0.00 1...Rc7+ 2.Kg6 Rc8 3.Kg7 Rc7+ 4.Kg6 (1.121.325) 317.6 19.01 0:13 0.00 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rc7+ 4.Kh6 (3.702.692) 283.5 20.01 0:18 0.00 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rc7+ 4.Kh6 (5.150.456) 282.9 21.01 0:27 0.00 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rc7+ 4.Kh6 (7.592.862) 276.7 22.01 0:34 +0.25++ 1...Rc7+ 2.Kh6 Rc8 3.h4 Rh8 4.Kh5 Rxh7+ 5.Kg6 Rxh4 6.b4 (9.776.053) 283.2 22.01 0:35 +0.75++ 1...Rc7+ 2.Kh6 Rc8 3.h4 Rh8 4.Kh5 Rxh7+ 5.Kg6 Rxh4 6.b3 (9.963.555) 283.4 22.01 1:05 +0.89 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rh8 4.Kg6 Ke7 (19.647.473) 300.4 23.01 1:12 +1.14++ 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rh8 4.Kg6 Kd7 5.Kg7 Ke7 6.Kh6 Kf8 7.Kg6 (21.830.738) 300.1 23.01 1:15 +1.44 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rh8 4.Kg6 Kd7 5.Kg7 Ke7 6.Kh6 (22.625.539) 300.5 24.01 1:28 +1.44 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rh8 4.Kg6 Kd7 5.Kg7 Ke7 6.Kh6 (26.579.724) 300.5 25.01 2:07 +1.64 1...Rc7+ 2.Kh6 Rc8 3.Kg7 Rh8 4.Kg6 Kd7 5.Kg7 Ke7 6.Kh6 (38.064.008) 298.8 best move: Rc6-c7 time: 2:30.095 min n/s: 298.710 nodes: 44.800.576 Regards, Mogens
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