CCRL update (7th April 2007)

[Graham Banks]

The April 7th update of the CCRL Rating Lists and Statistics is now available for viewing at:
http://www.computerchess.org.uk/ccrl/4040/

The links to the various rating lists can be found just beneath the default Best Versions list.

Our standard testing is at 40 moves in 40 minutes repeating while our current blitz testing is at both 40 moves in 4 minutes repeating and 40 moves in 12 minutes repeating, all adjusted to the AMD64 X2 4600+ (2.4GHz).

Our team of testers currently includes:
Graham Banks, Ray Banks, Sarah Bird, Shaun Brewer, Kirill Kryukov, Dom Leste, Tom Logan, Andreas Schwartmann, Joshua Shriver, Charles Smith, George Speight, Chris Taylor, Martin Thoresen, Chuck Wilson and Gabor Szots.

We remain on the lookout for a few more testers to help, so please contact one of us if you're interested.


40/40 Notes

1,213 games were added to our 40/40 database this week, making a total of 53,742 games.
A big thanks to all testers as usual.

Many engines on our list have few games and in many cases their ratings are likely to fluctuate (markedly for some) until a lot more games are played. Therefore no conclusions should be drawn about their strength yet.
To illustrate this point, when an engine has 200 games played, the error margin is still approximately +/-40 ELO, after 500 games +-25 ELO, after 1000 games +-17 ELO and even after 2000 games there is a +-13 ELO error margin!
This of course highlights the importance of looking at other rating lists that are also available in order to draw comparisons and get a more accurate overall picture.

We are not testing Rybka 2.3 at 40/40, preferring to wait for the bugfixed Rybka 2.3.2 to be released.


Multi-CPU Engines
3103 - Rybka 2.2 64-bit 4CPU
3047 - Zap!Chess Zanzibar 64-bit 4CPU
2983 - Hiarcs 11.1 4CPU
2959 - Naum 2.1 64-bit 4CPU
2932 - Deep Shredder 10 64-bit 4CPU
2930 - LoopMP 12.32 2CPU (not enough games for Loop 13.5 yet)
2921 - Deep Fritz 10 4CPU
2914 - Deep Junior 10 4CPU
2870 - Glaurung 1.2.1 64-bit 4CPU
2735 - Pharaon 3.5.1 32-bit 2CPU


Single CPU Engines
3010 - Rybka 2.2 64-bit
2903 - Hiarcs 11.1
2890 - Zap!Chess Zanzibar 64-bit
2878 - Fritz 10
2875 - Shredder 10
2862 - Toga II 1.2.1a
2858 - Loop 13.5
2851 - Spike 1.2 Turin
2841 - Naum 2.1 32-bit (64-bit not tested)
2840 - Junior 10
2806 - Ktulu 8.0
2794 - Chess Tiger 2007
2776 - Glaurung 1.2.1 Avalanche 32-bit (64-bit not tested)
2760 - CM10th Paralyse
2757 - SmarThink 1.00 32-bit (too few games for 64-bit)
2755 - Scorpio 1.91
2742 - Slow Chess Blitz WV2.1


3rd CCRL Amateur Championship (32-bit 1CPU):
Division 1 - Scorpio 1.91 (champion), Colossus 2006f and Pharaon 3.5.1 (relegated)

Division 2 - Frenzee 3.0, Crafty 21.5, E.T Chess 18.11.05 (promoted), Gosu 0.16, AnMon 5.60, Djinn 0.925x (relegated)

Division 3 - Comet B68, Post Modernist 1016, Amateur 2.82 (promoted), Diablo 0.5.1, Aice 0.99.2, Popochin 2.9, Anechka 0.08, Xpdnt 061120 (relegated)

Division 4 - AliChess 4.08 is playing its 30 games, then the tourney will be complete.
Homer 2.0 plus two from Arion 1.7, Hamsters 0.2, EXchess 5.01b and KnightX 1.92 will gain promotion.
The five engines to be relegated are most likely to be Zeus 1.29, Natwarlal 0.14, Averno 0.81, Tornado 1.0 and Sage 2.2a

Division 5 - With 21 of the 30 rounds having been played, BBChess 1.10 has opened up a small lead over the following pack that includes EveAnn 1.62, Adam 3.1, NagaSkaki 4.00, NanoSzachy 2.8, GreKo 5.2.5 and Pupsi 0.18.
The fight at the other end is also tight with nine engines battling fiercely to avoid the bottom five spots.


We have a number of tournaments in progress and most of these can also be followed in our public forum.


Blitz Notes

The 40/4 is updated separately to 40/40 with the latest update able to be viewed here:
http://www.computerchess.org.uk/ccrl/40 ... index.html


Multi-CPU Engines
3084 - Rybka 2.3.1 64-bit 2CPU
3023 - Zap!Chess Zanzibar 64-bit 4CPU
2994 - Hiarcs 11.1 4CPU
2947 - Deep Shredder 10 64-bit 4CPU
2945 - Deep Fritz 10 4CPU
2939 - Naum 2.1 64-bit 4CPU
2919 - Loop 13.5 64-bit 2CPU
2917 - Deep Junior 10 4CPU
2861 - Glaurung 1.2.1 32-bit 4CPU
2753 - Pharaon 3.5.1 2CPU


Single CPU Engines
3025 - Rybka 2.2n 64-bit
2921 - Hiarcs 11.1
2884 - Loop 12.32 (not enough games yet for Loop 13.5)
2876 - Toga II 1.3x4
2875 - Fritz 10
2856 - Shredder 10
2855 - Naum 2.1 64-bit
2844 - Junior 10
2829 - Spike 1.2 Turin
2824 - Ktulu 8.0
2799 - Chess Tiger 2007
2762 - CM10th Paralyse
2757 - Glaurung 1.2.1 32-bit (higher than 64-bit!)
2749 - Scorpio 1.91

Zap!Chess Zanzibar has too few games to be included yet.


FRC Notes

Ray tests only those engines that can play FRC through the Shredder Classic GUI.
During the past week, he has started testing Hamsters 0.2 for inclusion. This testing will continue during the coming week.

2917 - Hiarcs 11.1
2902 - Shredder 10
2887 - Loop 10.32f
2856 - Spike 1.2 Turin
2854 - Fruit 2.2.1
2810 - Naum 2.1
2772 - Glaurung 1.2.1
2673 - Pharaon 3.5.1
2624 - Ufim 8.02
2608 - Movei 383
2486 - Hermann 1.9
2398 - Aice 0.99.2
2375 - Ayito 0.2.994
2363 - Hamsters 0.2


Stats/Presentation Notes

The LOS stats to the right hand side of each rating list are "likelihood of superiority" stats. They tell you the likelihood in percentage terms of each engine being superior to the engine directly below them.

All games are also available for download through the link given at the top of this post. They can be downloaded by engine or by month.
ELO ratings are now saved in all game databases for those engines that have 150 games or more.

A list of games played this week per engine can be found in the update thread in the CCRL public forum, accessible through the link given at the top of this post.

[Alessandro Scotti]

2917 - Hiarcs 11.1
2902 - Shredder 10
2887 - Loop 10.32f
2856 - Spike 1.2 Turin
2854 - Fruit 2.2.1
2810 - Naum 2.1
2772 - Glaurung 1.2.1
2673 - Pharaon 3.5.1
2624 - Ufim 8.02
2608 - Movei 383
2486 - Hermann 1.9
2398 - Aice 0.99.2
2375 - Ayito 0.2.994
2363 - Hamsters 0.2

It works! And from there, they can go only up!

[Marc Lacrosse]

It works! And from there, they can go only up!

What kind of nuts did they eat ?



Marc

[Spock]

2917 - Hiarcs 11.1
2902 - Shredder 10
2887 - Loop 10.32f
2856 - Spike 1.2 Turin
2854 - Fruit 2.2.1
2810 - Naum 2.1
2772 - Glaurung 1.2.1
2673 - Pharaon 3.5.1
2624 - Ufim 8.02
2608 - Movei 383
2486 - Hermann 1.9
2398 - Aice 0.99.2
2375 - Ayito 0.2.994
2363 - Hamsters 0.2

It works! And from there, they can go only up!

Yes indeed, it works
200 games in that update, and another 100 games just finished here


.

[Alessandro Scotti]

What kind of nuts did they eat ?

Sorry... nobody knows and they won't tell!