Author: John Merlino
Date: 21:48:00 09/20/00
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On September 20, 2000 at 14:31:25, Uri Blass wrote: >On September 20, 2000 at 14:12:25, John Merlino wrote: > >>On September 20, 2000 at 13:18:20, James wrote: >> >>>This position turns out to be an excellent comparitor ofd chessmaster versions. >>>My puter is 733 Piii, not overclocked with 512 meg of ram. Tested cm55 and cm6k >>>using cm default but with select 10, and ttables set to 30. results: >>>cm55 found mate in 14 at 33 min 45 seconds < about 20 sec into ply 13> and at 20 >>>seconds into ply 13, cm6k still found m n 16 at 58 minutes and 45 seconds. >>> My play formula on cm55 found it in 31 min and 30 seconds. Am sure other >>>programs could see it faster, if anyone does any comparitive tests on their >>>system, would be interested in the results. IF cm8000 is as efficient as cm55, >>>and has 12 ply selectivity, it could maybe see it in 10 minutes or so i think. >>> This position seems to be another that begs the question : what is a ply : ? >> >>What is the position? I can test it on a Beta build of CM8000.... >> >>jm > >[D]2r3kr/5pp1/7p/3PQRb1/ppq1B3/8/PPP3PP/1K1R4 w > >chessmaster6000(ss=10) found mate in 20 at depth 2/12,mate in 14 at depth 5/15 >and mate in 13 at depth 6/16 > >Uri As promised.... A beta build of Chessmaster 8000, running on my PIII-600, with only 128 MB RAM, and only a 1MB hash table, BUT with SS=12, announced mate in 23 after 39 minutes and 57 seconds. The announcement came at depth 13, after 258,350,432 positions had been seen (just under 108,000 positions/second). Admittedly, this test is not terribly useful if you are trying to compare results with YOUR testing, because of machine and some settings differences (and also because I had to actually WORK and couldn't leave the machine idle for some of the time). I'll try running another test overnight, with a 32MB hash table (the most I can afford on my machine). However, there you are.... jm
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