Author: Uri Blass
Date: 00:07:21 12/20/00
Go up one level in this thread
On December 20, 2000 at 02:51:20, Uri Blass wrote: >On December 19, 2000 at 21:23:33, Mogens Larsen wrote: > >>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. > >I also cannot reproduce Ingo's result. >I watched the evaluations and I had positive evaluations for black at small >depth (0.01 advantage for black) but the 0.01 disappear and shredder5 shows 0.00 > >Here are the evaluations of my shredder5(I copied it from my P450 and I am too >lazy to copy the main line) > >I used Shredder5 on my pIII450 when the computer that is connected to the >internet is p200MMX. > >17.01 0:06 0.00 >18.01 0:23 0.01 >19.01 0:34 0.01 >20.01 0:57 0.01 >21.01 1:13 0.01 >22.01 5:59 0.00 >23.01 7:39 0.00 >24.01 9:10 0.00 >25.01 11:30 0.00 >26.01 15:36 0.00 > >Shredder is calculating for more than 31 minutes and did not get evaluation for >27.01 >I used 192 mbytes hash tables for shredder5. > >I have tablebases in my computer but I am not sure if shredder5 used them >because I did not tell shredder about the directory that they are in the >harddisk. > >When I installed Shredder5 it asked me something about installing tablebases and >I said yes but I did not tell it the directory that I have my tablebases for >Fritz so maybe Shredder5 can use only some tablebases that I installed when I >installed shredder5(I did not check if there are some tablebases in the >shredder5 CD or only in the tablebases CD's). > >I also copied some tablebases from the tablebases CD that I got to the harddisk >and Fritz engines can use it. > >Uri I can add that my shredder see the line Rc7+ Kg8 Rc8+ Kg7 Rh8 Kg6 Rb8 as the beginning of the main line in depthes 18-27 The latest information from shredder is: 27.01 44:44 0.00 Uri
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