Author: Ryan B.
Date: 22:59:07 02/27/06
Go up one level in this thread
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
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