The latest CCRL Rating Lists and Statistics are available for viewing from the following links:
http://computerchess.org.uk/ccrl/4040/ (40/40)
http://www.computerchess.org.uk/ccrl/404/ (40/4)
http://www.computerchess.org.uk/ccrl/404FRC/ (FRC 40/4)

Please note that the three lists are updated separately to each other. The 40/40 and 40/4 lists are updated once every two weeks and alternately to each other. The FRC list is updated when a new engine or engine version is being/has been tested.

The links to the various rating lists can be found just beneath the default Best Versions list (as in this screenshot). Specific 32-bit rating lists are denoted as such to the right of the default list in each category. The default lists contain the 64-bit engines.



Our 40 moves in 40 minutes repeating and 40 moves in 4 minutes repeating are both adjusted to the AMD64 X2 4600+ (2.4GHz).

Be aware that in the early stages of testing, an engine's rating can often fluctuate a lot.
It is strongly advised to look at the many other rating lists available in order to get a more accurate overall picture of an engine's rating relative to others.

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

All games are available for download by engine or ECO code. The total games database in its entirety is always available.
The current ELO ratings are saved in all game databases for those engines that have 200 games or more.

Clicking on an engine name will give details as to opponents played plus homepage links where applicable.

Custom lists of engines can be selected for comparison.

An openings report page lists the number of games played by ECO codes with draw percentage and White win percentage. Clicking on a column heading will sort the list by that column.


Games submitted for this update
Matacz 1.4 -> 1385
Komodo CCT 64-bit -> 849
Gull 2.1 64-bit -> 759
Murka 3 64-bit -> 575
Texel 1.02 64-bit -> 572
Kitteneitor 0.22.1 -> 567
NirvanaChess 1.1 64-bit -> 537
iCE 1.0 64-bit -> 505
Rhetoric 1.0 64-bit -> 380
Atlas 3.50 64-bit -> 351
Waxman 2013 -> 351
Glass 2.0 64-bit -> 255
Cheese 1.5 64-bit -> 224
Booot 5.2.0 64-bit -> 145
Hannibal 1.3 64-bit -> 142
Spike 1.4 Leiden -> 130
Little Goliath Evolution 3.12 -> 98
Cerebro 3.03d -> 98
Murka 2 64-bit -> 95
Chiron 1.5 64-bit -> 83
Protector 1.5.0 64-bit -> 82
Deep Shredder 12 64-bit -> 82
Hiarcs 14 -> 81
Naum 4.2 64-bit -> 81
Fritz 13 -> 80
Ufim 8.02 -> 66
Trace 1.37a -> 66
King of Kings 2.56 -> 66
Yace 0.99.87 -> 65
SpiderChess 070603 -> 64
BugChess2 1.9 64-bit -> 64
Crafty 23.5 64-bit -> 64
Quazar 0.4 64-bit -> 64
Hamsters 0.7.1 -> 64
Francesca MAD 0.13 Nobook -> 64
Bright 0.5c -> 64
Frenzee 3.5.19 64-bit -> 64
SmarThink 1.20 64-bit -> 64
MinkoChess 1.2 64-bit -> 64
Mephisto Gideon Professional -> 63
Francesca MAD 0.19 -> 63
Chronos 1.9.9 64-bit -> 63
Jonny 4.00 -> 63
EXchess 7.03b 64-bit -> 62
Ktulu 9 -> 62
Loop 13.6 (Loop 2007) 64-bit -> 62
Nemo 1.0.1b 64-bit -> 62
Stockfish 3 64-bit -> 62
DanaSah 4.88 -> 58
Zappa Mexico II 64-bit 4CPU -> 50
Toga II 1.4 beta5c 4CPU -> 50
Spark 1.0 64-bit 4CPU -> 50
Critter 1.6a 64-bit 4CPU -> 50
Deep Shredder 12 64-bit 4CPU -> 50
Houdini 2.0c 64-bit 4CPU -> 50
Naum 4.2 64-bit 4CPU -> 50
Houdini 3 64-bit -> 50
Deep Sjeng WC2008 64-bit 4CPU -> 50
Rybka 4.1 64-bit -> 50
Rybka 4.1 64-bit 4CPU -> 50
Deep Sjeng 3.0 64-bit 4CPU -> 50
Thinker 5.4c Inert 64-bit 4CPU -> 50
Protector 1.4.0 64-bit 4CPU -> 50
Deep Junior 13.3 64-bit 4CPU -> 50
Houdini 3 64-bit 4CPU -> 50
Critter 1.6a 64-bit -> 50
Stockfish 3 64-bit 4CPU -> 50
Spike 1.4 Leiden 4CPU -> 49
Tao 5.6 -> 34
Snitch 1.6.2 32-bit -> 34
Thinker 4.7a -> 34
Arasan 10.0 64-bit -> 34
Bruja 1.9.1 64-bit -> 34
PostModernist 1016 -> 34
Leila 0.53h -> 34
Nejmet 3.07 -> 34
Twisted Logic 20080404x -> 34
Ktulu 4.2 -> 34
Green Light Chess 3.00 -> 34
Patzer 3.80 -> 34
Abrok 5.0 -> 34
SmarThink 0.17a -> 34
Queen 4.03 -> 34
AnMon 5.60 -> 34
Gaia 3.5 64-bit -> 34
Dragon 4.6 -> 34
Muse 0.899b -> 34
Comet B68 -> 34
Quark 2.35 -> 34
RomiChess P3k 64-bit -> 34
LambChop 10.99 -> 34
The Crazy Bishop 0052 -> 34
KnightDreamer 3.3 -> 34
Diablo 0.5.1 -> 34
Pepito 1.59 32-bit -> 34
Amy 0.87b -> 34
Amyan 1.597 -> 34
Sjeng 12.13 -> 34
Djinn 0.925x -> 33
Mediocre 0.5 -> 32
Gull 1.2 64-bit -> 32
HeavyChess 0.13 beta -> 32
GreKo 9.8 64-bit -> 32
Tucano 2.00 64-bit -> 32
Chess Tiger 2007.1 -> 32
Green Light Chess 3.01.2.2 -> 32
Ant 2006-F -> 32
Tristram 3.36 -> 32
Atlas 3.25 64-bit -> 32
nanoSzachy 4.0 64-bit -> 32
Butcher 1.61 64-bit -> 32
AnMon 5.75 -> 32
Brutus 8.05 64-bit -> 32
AliChess 4.25 -> 32
LittleThought 1.052 64-bit -> 32
Capivara LK 0.08a11 64-bit -> 32
Arasan 15.1 64-bit -> 32
Kanguruh 1.93 -> 32
Anechka 0.08 -> 32
Rodin 6.0 -> 32
Esc 1.16 -> 32
Rebel Century -> 32
JARS 1.75a -> 32
The Baron 2.23 64-bit -> 32
Rhetoric Lite -> 32
GarboChess 2.10 64-bit -> 32
Cheese 1.4 64-bit -> 32
Cmcchess 2.5 -> 32
Natwarlal 0.14 -> 32
Chess 4.1a -> 32
Deep Junior 12.5 64-bit -> 32
Counter 1.2 -> 32
Sjakk 2.0 64-bit -> 32
Macromix 2.01 -> 32
Ruffian 2.1.0 -> 32
Hermann 2.8 64-bit -> 32
Thinker 5.4d Inert 64-bit -> 32
Zappa Mexico II 64-bit -> 32
MSCP 1.6h -> 32
Spark 1.0 64-bit -> 32
Petir 4.999999 -> 32
Twisted Logic 20090922 64-bit -> 32
BeRoChess 1.00 32-bit -> 32
Twisted Logic 20090922 32-bit -> 32
Pepito 1.59.2 64-bit -> 32
Bace 0.45 -> 32
GChess IV 0.2.0 -> 32
Gaviota 0.86 64-bit -> 32
GNU Chess 5.07.173b 64-bit -> 32
Zeus 1.29 -> 32
Onno 1.2.70 64-bit -> 32
Ziggy 0.7 -> 32
Darky 0.5d -> 32
Pharaon 3.5.1 -> 32
Amyan 1.72 -> 32
Octochess r4984 64-bit -> 32
Djinn 0.987 64-bit -> 32
Dorky 4.3 64-bit -> 32
Zoidberg 0.1 -> 32
Bobcat 3.25 64-bit -> 31
Adamant 1.7 -> 31
Popochin 3.2 -> 31
Anaconda 2.0.1 -> 31
SharpChess2 2.6.9 -> 31
Dirty 20Apr2013 64-bit -> 30
Mint 2.3 -> 30
Abulafia 0.61 -> 27