Author: Graham Banks
Date: 23:08:03 02/27/06
Go up one level in this thread
On February 28, 2006 at 01:59:07, Ryan B. wrote: >On February 27, 2006 at 23:51:54, Uri Blass wrote: > >>On February 27, 2006 at 22:25:44, Ryan B. wrote: >> >>>On February 27, 2006 at 21:55:05, Charles Wane wrote: >>> >>>>I just got finished playing a four game match at game/30 min between Hiarcs 10 >>>>and Rykba 13d, Hiarcs had an Athlon64 3200 with 128mb hash, against Rykba >>>>running on a Pent II 450 with 128mb hash. The score was 2-2 !! Yesterday I >>>>played about 14 games between rykba running on the same 450 against Deep fritz 8 >>>>on the Athlon64 and rykba won the majority of the games!! Iv'e never seen a >>>>program with such inferior hardware play so strong. I actually rated rybka on >>>>the 450 on chessmaster 10th but letting rybka play the various personalities it >>>>ended up with a rating of 3055!! And lost only one game , running all on a mere >>>>Pent II 450. I guess Rybka's case the chess knowledge means much more then the >>>>speed of the program? I don't know cause I'm not a computer chess expert, but >>>>all this seems bizarre. >>> >>>From what I have seen Rybka has great knowledge but not in the way of >>>traditional chess knowledge by having a huge evaluation function. Like all >>>chess engines I expect Rybka to play better on faster hardware but I so far >>>think the gain of fast hardware is less than most other programs. From what I >>>see Rybka ranks higher in blitz than long tc games. This is at least the case >>>on the CEGT rating list. >>> >>>Ryan >> >>I do not think that you are right here and rybka does not rank higher in blitz. >> >>Let compare the 32 bit versions of rybka >> >>blitz >>4 Rybka 1.01 Beta 13b 32-bit 2820 20 31 652 69.8 % 2675 23.0 % >>5 Rybka 1.0 Beta 32-bit 2811 9 12 3139 68.1 % 2679 29.2 % >> >>long time control >> >>3 Rybka 1.01 Beta 13-13b 32-bit 2869 28 28 494 73.9 % 2689 27.9 % >>5 Rybka 1.0 Beta 32-bit 2823 10 10 3670 68.8 % 2686 31.1 % >> >>You can see that rybka has higher ranking at long time control. >> >>I believe that the 64 bit version simply score too much to have reliable rating >>because it played in the long time control against opponents that are too >>weak(more than 300 elo weaker than it). >> >>Uri > > >Fruit is my reference point. > >CEGT 40/40 >Rybka 1.0 Beta 32bit 2816 >Fruit 2.2.1 2779 > > >CEGT Blitz 40/4 >Rybka 1.01 Beta 13b 32-bit 2820 >Fruit 2.2.1 2767 > >Ryan CCRL 40/40 (Athlon XP3800+) Rybka 1.0 Beta 32 bit 2883 Fruit 2.2.1 2848 For all intents and purposes the same points differential as the CEGT 40/40, so the gap doesn't seem to decrease much at longer time controls. Regards, Graham.
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