Author: Jeremiah Penery
Date: 14:07:22 04/07/99
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On April 07, 1999 at 16:32:18, James T. Walker wrote: >For anyone interested in Crafty engines. The Crafty 16.6 has now played 58 >games against Fritz 5.32 and Junior 5.0. The score stands as: > >Junior 5.0 wins 16 to 14 >Fritz 5.32 wins 16 to 12 > >This may not be "Stastically significant" but it's heading in that direction. >These games were played at game/60. Crafty used a Pentium II 333 Mhz/128 meg >and Fritz/Junior used a K6-2/350 Mhz with 128/64 meg hash tables. Most games >were played with Crafty using 96 meg hash,8 meg hasp,10 meg cache. Fritz used >128 meg hash and Fritz used 128 meg with a few games with only 64 meg hash. > >I have also played a large number of games at game/10. Crafty is not as >impressive at this time control but has given Junior 5 a hard time. Scores: >Crafty 16.6 wins Comet B00 60.5 to 39.5 >Junior 5.0 wins Crafty 16.6 71.5 to 62.5 >Nimzo 99 wins Crafty 16.6 52 to 30 >Fritz 5.32 wins Crafty 16.6 93 to 39 >This indicates that Crafty is only 25 points behind Junior but 150 points behind >Fritz. I wish Bob were here to explain why Crafty now plays Junior 5.0 so good >now but no improvement shown with games against Nimzo/Fritz(At Blitz). The >game/60 results indicate Crafty may play better at the long time controls and >should have a chance at time controls closer to tournament conditions. >Also I am wondering if this indicates a change in Bob's approach of tuning >Crafty to play better comp. vs comp. games vice Crafty vs humans which has >seemingly been his goal in the past. Any comments on the above info ?? >Jim Walker One reason Crafty may do better at slower games (and one thing that's always bugged me a bit, even if for no real reason :) is that almost all (if not ALL) of his testing is done on his super-fast Quad Xeon machine. If Crafty plays better on his machine (at whatever time control), it is analogous to Crafty playing better on others' machines at a much longer time control. In fast games, I've seen almost no improvement since 15.20, and I haven't played enough slow games to notice any difference. The version that seems to do best on my machine [PII-300] on any time control is a slightly modified 15.20 that I have. It almost always beats 16.6, even against things like Dual PII-350 machines. These are just my observations, so please do not take this as definite truth. :) >P.S. I wish Bob was here. I suspect he's just taking a break for a while, and that he'll come back sooner or later. :) Jeremiah
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