Author: Dann Corbit
Date: 12:29:37 01/11/01
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On January 11, 2001 at 15:17:12, Mike S. wrote: >Thanks Dann, but could you give (once more probably) all the details like CPU, >clock speed, time controls, hash size, ponder on or off, which tb's used etc.? >I'd like to forward this info and the results then to the CSS-Forum, but it >would also be appreciated I think, if you would like to make a posting there >yourself: > >http://www.computerschach.de/forum/ (no password needed) 1. The games were run with ponder OFF. This was necessary because the programs were pitted against each other on the same machine (to ensure that the contest was very even handed). 2. The games were run at slow time control of at least G/60 3. The machines ranged in compute power from 1GHz Athlon and PIII machines down to 300 MHz PII machines. The slower machines were given longer time, but I did not try to compensate exactly since the programs were still paired against each other on identical hardware. 4. Hash size was 32 megabytes per program (except for those programs with fixed hash size). 5. The tablebase files available were: Nalimov: All 5 piece files and some six piece. Edwards: All 4 piece files 6. For every pairing of two distinct chess programs, the programs would run a total of 4 games against each other: two as white and two as black. The programs were not allowed to change during the contest even for a bug fix. Since the contest started over 6 months ago, many of the programs have changed a great deal since the contest started. Many new programs were left out entirely since they did not exist yet (and a few older ones which I classified as too unstable to participate). The idea for the contest was generated by Volker Pittlik's rating system. Besides the more than 1000 games of the contest itself, I have about as many games in the calibration run where I determined the initial seeding. I saw as a need the ability to have some rough classification of the real strength of freely available programs other than speculation. Something like the SSDF for free programs, though not nearly so sophisticated or thorough.
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