Author: Enrique Irazoqui
Date: 09:28:38 04/27/00
Go up one level in this thread
On April 27, 2000 at 12:20:10, blass uri wrote: >On April 27, 2000 at 11:48:24, Enrique Irazoqui wrote: > >>On April 27, 2000 at 02:16:48, Chessfun wrote: >> >>> >>>All games on one Cel 433. >>>Ponder=off. >>>Tablebases used at 25 and longer. >>>Nunn 1 positions. >>>No opening books are loaded. >>> >>> 1 min game Fritz 6a 14.5 - 5.5 Crafty 17-10 >>> 2 min game Fritz 6a 14.5 - 5.5 Crafty 17-10 >>> 3 min game Fritz 6a 13.0 - 7.0 Crafty 17-10 >>> 5 min game Fritz 6a 15.5 - 4.5 Crafty 17-10 >>>10 min game Fritz 6a 13.0 - 7.0 Crafty 17-10 >>>25 min game Fritz 6a 13.0 - 7.0 Crafty 17-10 >>>60 min game Fritz 6a 15.5 - 4.5 Crafty 17-10 >>>Tourney times Fritz 6a 14.5 - 5.5 Crafty 17-10 >>> >>>Once I figure out how to autoplay from the Nunn 1 opening >>>positions I will play all games with ponder=on. >>> >>>Thanks. >> >>I find what you are doing very interesting, not so much concerning the relative >>strength of Fritz and Crafty, which a series of matches between them can't >>determine anyway, but regarding testing procedures. >> >>I ran 2 similar matches myself between Crafty 17.10 and Fritz 6a in the GUI of >>Fritz 6a, with the General book of F6 (Alex Kure), tablebases on (2.6 GB of the >>Turbo CDs) and 4MB hash for each engine. The first match was played on 2 P600E, >>Game/1 minute, ponder on. The second, on a single P600E, ponder on and game/2 >>minutes, since each program is using 50% of the CPU. >> >>In the first match, Fritz 6a won 15-5, which is consistent with your 14.5-5.5 >>and seems to indicate that ponder off doesn't hurt Crafty more than Fritz. > >I cannot compare between your match and the nunn match because the positions are >not the same. > >I guess that ponder off does not hurt crafty more than Fritz but to prove it you >should use the same positions. > >It is better to use something like the nunn match in every test otherwise the >lucky program with the choice of the opening has advantage. >You can use different positions and not have to use the nunn positions but every >program should play the same positions with white and black. > >Uri I find interesting this series of matches because they may tell us something about the value of ponder on/off, playing on 1 or 2 machines, blitz vs. slow games. About using the Nunn positions, I think that they are useful to avoid randomness and to measure engines instead of books, but maybe we can achieve the same by using the same book for both engines, as I did. So far, my results and Chessfun's are pretty consistent. Instead, there is lack of consistency between these blitz results and the SSDF match at 40:2 that Fritz wins so far by 15-10, or 60% instead of the 75% of the blitz matches. Enrique
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