Author: Uri Blass
Date: 03:54:12 04/15/03
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On April 15, 2003 at 06:30:43, Kurt Utzinger wrote: >On April 15, 2003 at 05:59:40, Rupesh wrote: > >>On April 15, 2003 at 04:43:44, Kurt Utzinger wrote: >> >>>On April 15, 2003 at 02:27:59, Rupesh wrote: >>> >>>>Can somebody tell me what are the differences between shredder 7 and shredder >>>>7.04? Also why is forward pruning set to a negative value in shredder engine >>>>parameter? What does it signify? >>>> >>>>Thanks >>>>Amitesh >>> >>> The main difference between Shredder7 and Shredder704 is that the latest >>> version seems to be stronger. >>> Kurt >> >> >>Kurt, I use shredder 7 on playchess. I have played against many shredder 7.04 >>engines and the statistics does not lean toward shredder 7.04. So i was thinking >>of finding which portion of the program SMK rewrote. >> >>Also my question also was why we see a negative forward pruning number in engine >>parameters? >> >>Amitesh > > I have not answer to the negative forward pruning number. But what I know > is that comparisons between engine Xa vs Xb do seldom bring reliable > facts as to strenght of engines. Shredder 7.04 does better vs all other > programs than Shredder7, that's the point. > Kurt I read a claim that the book of shredder7 was optimized for shredder7 and not shredder7.04 I do not know about direct comparison of matches between Shredder7 and shredder7.04 but I guess that 7.04 is going to win also in that comparison if you use the nunn match. I know from my experience that when moveib was better than moveia based on direct comparison then it was also better against other engines based on results of beta testers. Uri
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