**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**

RobboLito 0.21Q 32-bit -> 330

Hannibal 1.3 64-bit 4CPU -> 217

Hannibal 1.3 64-bit -> 217

Hannibal 1.3 32-bit -> 182

Deep Junior 13.3 64-bit 1CPU -> 154

ProDeo 1.83c -> 138

Houdini 3 64-bit -> 121

Dirty 23Mar2012 64-bit -> 80

Gull II 64-bit -> 76

Fritz 13 -> 71

Strelka 5.5 64-bit -> 65

EveAnn 1.71 -> 63

Komodo 5 64-bit -> 55

Gull II 32-bit -> 52

Bouquet 1.6 64-bit 4CPU -> 52

Sting SF 2 64-bit 4CPU -> 52

IvanHoe 9.46h 64-bit 4CPU -> 51

Stockfish 2.3.1 64-bit 4CPU -> 51

Critter 1.6a 64-bit 4CPU -> 50

Hiarcs 14 -> 50

Rybka 4.1 64-bit 4CPU -> 50

Gull II 64-bit 4CPU -> 50

RobboLito 0.21Q 64-bit 4CPU -> 50

Naum 4.2 64-bit 4CPU -> 49

Vitruvius 1.11C 64-bit 4CPU -> 49

Chiron 1.5 64-bit 4CPU -> 49

Houdini 3 64-bit 4CPU -> 49

Hiarcs 14 4CPU -> 48

Dabbaba 7.49 -> 41

Shallow 1.0 64-bit -> 41

Vajolet 1.62.1 -> 41

Capivara LK 0.09a01a 64-bit -> 40

Cupcake 1.1a -> 40

FireFly 2.6.0 64-bit -> 40

Butcher 1.64 64-bit -> 40

Gibbon 2.57a 64-bit -> 40

Soldat III 0.172 -> 40

Waxman 2011 -> 40

ProChess 1.02AD -> 40

BlackMamba 1.2b 64-bit -> 40

ChessKiss 1.7 64-bit -> 40

DeepSaros 3.1a 64-bit -> 36

Thinker 5.4D Inert 64-bit -> 36

BlackMamba 1.2c 64-bit -> 36

Quazar 0.4 64-bit -> 36

Rybka 1.1 64-bit -> 36

Nemo 1.0.1 64-bit -> 36

Sting SF 2 64-bit -> 36

Shredder 12 64-bit OA On -> 36

Onno 1.2.70 64-bit -> 36

Stockfish 2.2.2 32-bit -> 30

Critter 1.4 32-bit -> 30

Deep Shredder 12 64-bit OA Off 4CPU -> 30

Chiron 1.5 32-bit -> 30

Crafty 23.5 64-bit -> 28

Houdini 3 32-bit -> 28

Vitruvius 1.11C 32-bit -> 28

Naum 4.2 32-bit -> 26

Rybka 4.1 32-bit -> 26

Arasan 15.1 64-bit -> 25

Rhetoric Lite -> 25

Bouquet 1.6 32-bit -> 25

Mediocre 0.5 -> 24

Vitruvius 1.11C 64-bit -> 24

RobboLito 0.21Q 64-bit -> 24

IvanHoe 9.46h 64-bit -> 24

Critter 1.6a 64-bit -> 24

Djinn 0.979 64-bit -> 23

Strelka 5.5 32-bit -> 22

Komodo 5 32-bit -> 22

Rybka 4.1 64-bit -> 22

Naum 4.2 64-bit -> 22

Stockfish 2.3.1 64-bit -> 22

Octochess r4984 64-bit -> 22

EXchess 6.71b 64-bit -> 22

RedQueen 1.1.3 64-bit -> 21

ECE 12.01 -> 20

Bouquet 1.6 64-bit -> 20

Bagatur 1.3a 64-bit -> 20

DiscoCheck 4.0.3 64-bit -> 20

Myrddin 0.86 64-bit -> 20

RomiChess P3L 64-bit -> 19

Alex 2.14a 64-bit -> 19

TJchess 1.1 64-bit -> 19

Tigran 2.3 64-bit -> 19

Ifrit m1.8 64-bit -> 19

Jazz 640 64-bit -> 19

Betsabe II 1.30 64-bit -> 19

Deep Junior 13.3 32-bit 1CPU -> 18

Alfil 13.1 64-bit -> 18

Crafty 22.8 32-bit -> 18

Shredder 12 32-bit OA On -> 18

CM10th Default -> 16

Quazar 0.3b 32-bit -> 16

DeepSaros 3.0 32-bit -> 16

Ktulu 7.1 -> 16

Alfil 11 -> 16

Tucano 1.04 -> 16

Scorpio 2.1 32-bit -> 16

DanaSah 5.00 -> 16

DeepSaros 3.3b 64-bit -> 15

Bouquet 1.5 32-bit -> 14

Spike 1.4 Leiden -> 14

BlackMamba 1.2b 32-bit -> 14

Rybka 2.3.2a 32-bit -> 14

Shredder 12 32-bit OA Off -> 14

Deep Sjeng c't 2010 -> 12

Quazar 0.4 32-bit -> 12

Sting SF 2 32-bit -> 12

Houdini 1.5a 32-bit -> 12

Chronos 1.9.9 64-bit -> 12

Chiron 1.5 64-bit -> 12

DeepSaros 2.3j 32-bit -> 12

IvanHoe 9.46h 32-bit -> 10

Stockfish 2.3.1 32-bit -> 10

Chess Tiger 2007 -> 10

Komodo 3 32-bit -> 10

Chessmaster 11 Archangel -> 10

E.T. Chess 13.01.08 -> 8

Bison 9.11 64-bit -> 8

Chess Tiger 2007.1 -> 8

Dirty 5Sep2012 64-bit -> 8

Colossus 2008b -> 8

Cyrano 0.6b17 -> 8

Bobcat 3.25 64-bit -> 8

Ktulu 9 -> 8

Critter 1.6a 32-bit -> 8

Godel 2.3.7 64-bit -> 8

Movei 00.8.438 (10 10 10) -> 8

Daydreamer 1.75 64-bit -> 8

Cheng3 1.07 64-bit -> 8

Philou 3.7.1 64-bit -> 8

Alaric 707 -> 8

Delfi 5.4 -> 8

The Baron 2.23 64-bit -> 8

Slow Chess Blitz WV2.1 -> 8

Ruffian 2.1.0 -> 8

Deuterium 12.01.30.1070 64-bit -> 8

Gandalf 6 -> 8

Gaviota 0.86 64-bit -> 8

CM10th Ogre -> 8

OliThink 5.3.2 32-bit -> 6

Daydreamer 1.5 -> 6

Bagatur 1.3a 32-bit -> 6

Butcher 1.64 32-bit -> 6

TJchess 1.1 32-bit -> 6

Dirty 0.99n -> 6

Delphil 2.9g 64-bit -> 5

RomiChess P3L 32-bit -> 5

Plisk 0.2.7d 64-bit -> 5

Rodin 5.1 -> 5

Murka 2.0 64-bit -> 4

Pupsi2 0.09 -> 4

Sjakk 1.1.9 -> 4

OliThink 5.3.2 64-bit -> 4

Nebula 1.5 64-bit -> 4

Hussar 0.4 -> 4

iCE 0.3 -> 4

Twisted Logic 20071202x -> 4

Hannibal 1.0a 32-bit -> 4

Arasan 10.1 -> 4

Cheese 1.4 64-bit -> 4

Protector 1.4.0 64-bit 4CPU -> 4

Dorky 4.3 64-bit -> 4

Strelka 5.1 32-bit -> 2

FireFly 2.5.13 64-bit -> 1