Author: Uri Blass
Date: 13:38:25 11/24/03
Go up one level in this thread
On November 24, 2003 at 16:19:19, Robert Hyatt wrote: >On November 24, 2003 at 11:10:42, Uri Blass wrote: > >>On November 24, 2003 at 09:07:39, Robert Hyatt wrote: >> >>>On November 24, 2003 at 07:41:16, Daniel Clausen wrote: >>> >>>>On November 23, 2003 at 17:29:28, Peter Berger wrote: >>>> >>>>>For information about setup and rules: >>>>>http://www.talkchess.com/forums/1/message.html?329237 >>>> >>>>I quote from there: >>>> >>>>"Saying that the faster computer is about 10 times faster shouldn't be too >>>>wrong." >>>>and >>>>"With this setup Crafty should be the clear favourite I suppose." >>>> >>>>I don't see why Crafty should be the clear favourite here. When I look at the >>>>SSDF list, I see the following ratings: >>>> >>>> >>>>Junior 8.0 256MB Athlon 1200 MHz 2784 >>>>Crafty 18.12/CB 256MB Athlon 1200 MHz 2615 >>>> >>>>So there's a rating difference of 169 points. A factor of 10 is slightly more >>>>than 3 times doubling and if we use 70 points for each doubling (which is the >>>>upper limit in my opinion) we get the difference (3*70)-169=41 points. >>>> >>>>In a match where the first one to reach 6 wins is the winner, that's hardly >>>>"clear favourite". It's more like using a dice to decide something. Or am I >>>>missing something? >>>> >>>>Sargon >>> >>>Yes, he is not using 18.12. He is using something two years newer. >> >>newer does not mean better in comp-comp games based on experience with Crafty. >> >> >>Crafty16.19 is the leader of the crafties of the following list >> >>http://www.digichess.gr/infiniteloop/ratings/NIL2_final.txt > >I can _guarantee_ you that 16.19 is not better than 19.5, at normal >time controls. I can guarantee you it is significantly worse, in fact. >For blitz, I don't know, but then again I don't really care either since >we aren't playing blitz matches that count for anything. 19.5 was not tested for that list but the time control was 80+3 on P3 1Ghz(no pondering) and 16.19 did better than newer versions(I know also that you do not like ponder off but I do not believe that it helped 16.19 relative to other versions). What tests did you do to be sure that 19.5 is better than 16.19 at normal time control(Note that I am talking only about comp-comp games and not about comp-human games) > >> >> >>It does not prove that Crafty16.19 is really better(not enough games) but it >>gives serious doubt if newer Crafty is really better. >> >>I also remember that Crafty16.xx was the Crafty that beated Rebel in 1 hour per >>move. >> >>It seems that the commercial programs did big step forward from that time when >>Crafty did not do it. > >I haven't seen my results get worse on ICC over the past N years. Things have >(IMHO) remained fairly "steady-state". Occasionally there is a need for some >minor tuning (IE when Gambit Tiger hit the streets) but that was done by many >relatively quickly to restore status-quo. Note that I thought only about games against computers and ICC includes games against humans. Another question to check is if your hardware did not improve more than the hardware of the opponents. Uri
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