Author: José de Jesús García Ruvalcaba
Date: 14:18:05 06/02/99
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On June 01, 1999 at 21:52:38, Terry Presgrove wrote: >On June 01, 1999 at 17:05:25, Hristo wrote: > >>Has anyone compared the two versions of crafty(15_20 and 16_8)? >>So far I had them play 6 blitz games and 1 one_hour game(the second one >>should be done when I get home). >>The score: >>Blitz- 15_20 +3 =2 -1 >> 16_8 +1 =2 -3 >>1 hour-15_20 +1 =0 -0 >> -16_8 +0 =0 -1 >> >> >>While the results of a few games are not very important the style >>of play was in favor of 15_20. It seemed that 16_8 had some problems >>entering endgame with Bishop and pawns against Bishop\Knight with pawns. >>FYI I'm interested only in the strength of the engines, so there is no >>opening-book or endgame database used. To be fair, I set a position >>from which the programs continue(similar to the Nun test). Otherwise >>the opening lines are rather funny .. :))) >>I'm asking this to know if I should keep track of the score. >> >>Computer: >> PII450, 128M Ram, default engine settings. >> Windows NT. >> >> >>Hristo > > I have run a number of tests with v15.20 vs. 16.6 the results > being mixed. It seems 15.20 played better at 3 0 through 15 0 and >16.6 breaking even around 30 0 and playing better at 3 hour matches. > I have been running a number of matches between 16.6 amd 16.8 and > it also appears 16.8 plays better at faster blitz but I'm getting a different > result from 30 0 and up 16.6 winning 14-7 so far in 30 0 matches. And > 3.5 out of 4 at 3hour+ matches. > This on k6-350 . I recognize this small sample is not sufficient to > draw a reliable conclusion but these early results seem to indicate 16.6 may > still be the strongest version at longer time controls on a single cpu machine. > > TP I do not play hundreds of test games, I only play against the chess engines for fun. My subjective impression is that crafty 16.6 is the strongest crafty version; it seems to agree with your findings. Bob has said that 16.8 needs lots of tuning, and I think that after the tuning (which Bob says will take several versions) crafty will get even stronger than version 16.6 José.
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