Author: Ross Boyd
Date: 06:01:25 01/02/06
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On January 02, 2006 at 04:20:59, Uri Blass wrote: >On January 02, 2006 at 03:20:36, Ross Boyd wrote: > >> >>I tested TRACE against Gerbil 2 to compare with Uri's results posted earlier. >>Surprisingly TRACE eclipsed Movei's performance... but what TRACE lacks in >>intelligent search/eval she compensates for with exceptional luck. ;-) >> >>Hardware was P3-600Mhz... no pondering. All 3,4 and 5 man EGTBs. >>Time control was 40 moves in 1 minute (repeating). >>The final result was 24-4-12 (W-L-Draw) > >This result does not surprise me because of the following reasons. > >1)Trace is probably better than Movei in endgames thanks to using hash for >pruning in the endgame. Possibly. I don't know how much difference it makes. >2)I still did not implement special knowledge for these endgames and one of the >reasons is that normal games is a very long way to test because many of them do >not get this type of endgames(I will probably test again in these endgames when >I implement special knowledge for endhames). > >3)My hardware is faster than your hardware and I guess that longer time control >help the weaker program to be closer to 50% Maybe not. I ran the test again on my Athlon XP2800+ and the score this time was 24-4-12 so she scored only a half point less (30-10). I think the reason TRACE outscored Movei is that TRACE has a good deal of technical draw knowledge which allows her to swindle games especially against engines that don't have such knowledge in their eval (like Gerbil). The endgame suite does highlight some pawn eval problems which I hope to fix. TRACE doesn't know enough about candidate passers and it cost her a few points. > >Note that >In order to complete my match I played additional 10 games >and the result was 7-3 for Movei so it means that Movei beated gerbil 27.5-12.5 >and it could be 28.5-11.5 without a bug in probing the nalimov tablebases. > >Uri
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