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, by month or by ECO code. The download databases by month or ECO code are only updated monthly, but 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
ALChess 1.5b -> 32
APILChess 1.05r1b -> 32
Alaric 707 -> 32
Arasan 14.3 64-bit -> 32
Bace 0.45 -> 31
Belzebub 0.67 -> 30
Blikskottel 0.8 -> 32
Bouquet 1.5 64-bit 4CPU -> 52
Cheng3 1.07 64-bit -> 31
Chess Tiger 2007.1 -> 29
Chiron 1.1a 64-bit 4CPU -> 303
Cmcchess 2.5 -> 849
Colossus 2008b -> 32
Critter 1.6a 64-bit 4CPU -> 155
DChess 1.0.2 -> 32
Deep Junior 13 64-bit 4CPU -> 50
Deep Junior 13.3 64-bit 4CPU -> 427
Deep Shredder 12 64-bit OA On 4CPU -> 62
DeepSaros 3.1 64-bit 4CPU -> 52
Deuterium 10.01.27.213 -> 32
E.T. Chess 13.01.08 -> 32
EXchess 6.50b 64-bit -> 32
Eden 0.0.13 -> 32
Elf 1.3.0 -> 32
Exacto 0.d -> 31
Gandalf 6 -> 32
Grizzly 1.40.1b -> 28
Gull II b2 64-bit 4CPU -> 12
Hannibal 1.2 64-bit -> 12
Hiarcs 14 4CPU -> 267
Houdini 1.5a 64-bit 4CPU -> 52
Houdini 2.0c 64-bit 4CPU -> 104
Houdini 3 64-bit 4CPU -> 908
IQ23.003 -> 30
IvanHoe 9.46h 64-bit 4CPU -> 54
JChess 1.0 -> 32
Komodo 3 64-bit -> 52
Komodo 5 64-bit -> 102
Larsen VB 0.05.0001 -> 32
MSCP 1.44 -> 32
MiniMardi 1.3 -> 32
Movei 00.8.438 (10 10 10) -> 32
Naum 4.2 64-bit 4CPU -> 62
Nero 6.1 -> 32
Numpty Omega -> 32
Piranha 0.5 -> 32
Pooky 2.7 -> 32
Protector 1.4.0 64-bit 4CPU -> 12
Purple Haze 2.0 -> 32
Quazar 0.4 64-bit -> 12
Rodent 0.16 64-bit -> 348
Rybka 2.3.2a 64-bit 4CPU -> 52
Rybka 4 64-bit 4CPU -> 50
Rybka 4.1 64-bit 4CPU -> 104
SdBC 0.41.40 -> 32
SharpChess2 2.6 -> 32
Spark 1.0 64-bit 4CPU -> 116
Spike 1.4 Leiden 4CPU -> 62
Stockfish 2.2.2 64-bit 4CPU -> 50
Stockfish 2.3.1 64-bit 4CPU -> 144
Storm 0.6 -> 32
Strelka 5.5 64-bit -> 156
Tarrasch Toy Engine 0.906 -> 32
Tony's Chess 0.02 -> 32
Vajolet 0.4.1 -> 32
Vitruvius 1.11C 64-bit 4CPU -> 62
WildCat 8 -> 32
Zappa Mexico II 64-bit 4CPU -> 12
Zotron 4.4.6 -> 27