Author: Uri Blass
Date: 23:51:20 12/19/00
Go up one level in this thread
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
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