Discussion of anything and everything relating to chess playing software and machines.
Moderators: bob, hgm, Harvey Williamson
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- Posts: 900
- Joined: Tue Apr 27, 2010 1:48 pm
Showing 9 elo right now. Is that a ~ 1 elo per month improvement rate or do I have the wrong release dates?
- Posts: 484
- Joined: Wed Nov 18, 2009 12:09 am
I think the elo gain is statistical randomness, as Vas stated that he did not change anything related to eval or search. This was a bug fix release, mostly related to stall bugs.
- Posts: 197
- Joined: Mon Jul 13, 2009 12:16 am
There 9 ELO improvement you are referring to is from the 6CPU version of Rybka 4 and the 4 CPU version of Rybka 4.1
- Posts: 10186
- Joined: Wed Mar 08, 2006 7:57 pm
- Location: Redmond, WA USA
Code: Select all
3 Deep Rybka 4.1 x64 4CPU 3253 22 22 612 71.5% 3094 41.0%
6 Deep Rybka 4 x64 4CPU 3218 9 9 4170 73.9% 3037 36.5%
Looks like 53-18=35 Elo to me.
- Posts: 399
- Joined: Fri Jun 04, 2010 5:23 am
Why doesn't CCRL test Houdini with 4 cores? Why just test it with 1 core?
- Posts: 3411
- Joined: Thu Mar 16, 2006 6:10 pm
Rybka 4.1 is only a bug fix with no ELO strength increase by way of evaluation improvement. Of course the stall bug was very serious and should improve ELO strength, especially in games where depth 13 or more are reached frequently.
- Posts: 2024
- Joined: Wed Mar 08, 2006 7:15 pm
Let's see what happens in TCEC Elite match: Rybka 4 scored 16,5-23,6 = -60 ELO. Interesting match coming with super hardware!
- Posts: 523
- Joined: Thu Apr 24, 2008 7:31 am
- Location: Belgium
Yes..i would like to see Rybka RC2 playing with his full strength against Houdini!
- Posts: 1017
- Joined: Thu Mar 09, 2006 3:15 pm
- Location: Long Island, NY, USA
Can someone clear the confusion for me about "Rybka" and "Deep Rybka"? How are they the same or different?
Is "Deep Rybka 1CPU" the same as "Rybka"?