**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**

Gaviota 0.86 64-bit -> 232

Bouquet 1.6 32-bit -> 205

Gull II 32-bit -> 198

RobboLito 0.21Q 32-bit -> 194

EveAnn 1.71 -> 177

Hannibal 1.3 64-bit -> 170

Houdini 3 64-bit -> 167

RobboLito 0.21Q 64-bit -> 130

Bouquet 1.6 64-bit 4CPU -> 119

Hannibal 1.3 64-bit 4CPU -> 111

Murka 2.0 64-bit -> 88

Delphil 2.9g 64-bit -> 87

Rhetoric Lite -> 87

Plisk 0.2.7d 64-bit -> 86

RomiChess P3L 64-bit -> 73

ECE 12.01 -> 72

Bubble 1.5 -> 70

Dabbaba 6.52 -> 70

BigLion 2.23w -> 70

Soldat III 0.172 -> 70

Gibbon 2.01b -> 70

ProChess 1.02AD -> 70

Monarch 1.7 -> 70

Rhetoric 0.10d -> 70

Bouquet 1.6 64-bit -> 58

Chiron 1.5 64-bit -> 58

Spike 1.4 Leiden -> 54

EveAnn 1.67 -> 48

Gibbon 2.57a 64-bit -> 48

Deep Junior 13.3 64-bit 1CPU -> 48

Betsabe II 1.28 64-bit -> 48

Strelka 5.5 64-bit -> 48

Naum 4.2 64-bit -> 44

BlackMamba 1.2b 64-bit -> 44

Gull II 64-bit -> 44

Komodo 3 32-bit -> 42

DeepSaros 2.3j 32-bit -> 42

Mediocre 0.5 -> 41

Vitruvius 1.11C 64-bit -> 40

Sjakk 1.1.9 -> 40

OliThink 5.3.2 64-bit -> 40

Nebula 1.5 64-bit -> 40

Hussar 0.4 -> 40

iCE 0.3 -> 40

Quazar 0.4 32-bit -> 40

Sting SF 2 32-bit -> 40

Houdini 1.5a 32-bit -> 40

Cheese 1.4 64-bit -> 40

Rybka 2.3.2a 32-bit -> 40

Dorky 4.3 64-bit -> 40

Rodin 5.1 -> 39

Djinn 0.979 64-bit -> 39

Stockfish 2.3.1 64-bit -> 37

IvanHoe 9.46h 64-bit -> 36

Sting SF 2 64-bit -> 36

Komodo 5 64-bit -> 34

Critter 1.6a 64-bit -> 34

Pupsi2 0.09 -> 33

Rybka 4.1 64-bit -> 30

Deep Junior 13.3 32-bit 1CPU -> 28

Stockfish 2.2.2 32-bit -> 28

Shredder 12 32-bit OA On -> 28

Vitruvius 1.11C 64-bit 4CPU -> 28

Critter 1.4 32-bit -> 28

Critter 1.6a 64-bit 4CPU -> 27

Rybka 4.1 64-bit 4CPU -> 27

Stockfish 2.3.1 64-bit 4CPU -> 27

Houdini 3 64-bit 4CPU -> 27

Strelka 5.1 32-bit -> 26

IvanHoe 9.46h 64-bit 4CPU -> 26

Hannibal 1.3 32-bit -> 26

RobboLito 0.21Q 64-bit 4CPU -> 26

Sting SF 2 64-bit 4CPU -> 26

Alex 2.14a 64-bit -> 25

TJchess 1.1 64-bit -> 25

Naum 4.2 64-bit 4CPU -> 25

Hiarcs 14 4CPU -> 25

Tigran 2.3 64-bit -> 25

Ifrit m1.8 64-bit -> 25

Jazz 640 64-bit -> 25

Betsabe II 1.30 64-bit -> 25

Bagatur 1.3a 64-bit -> 24

Myrddin 0.86 64-bit -> 24

DeepSaros 3.3b 64-bit -> 18

Gaviota 0.86 64-bit 4CPU -> 17

GreKo 9.8 64-bit -> 17

Arasan 15.1 64-bit 4CPU -> 17

Atlas 3.25 64-bit -> 17

Jonny 4.00 4CPU -> 17

Crafty 23.5 64-bit 4CPU -> 17

GarboChess 3.0 64-bit -> 17

Octochess r4741 64-bit 4CPU -> 17

NanoSzachy 4.0 64-bit -> 17

Francesca MAD 0.19 -> 17

Glass 1.9 64-bit -> 17

Scorpio 2.7.5 64-bit 4CPU -> 17

BugChess2 1.9 64-bit 4CPU -> 17

Tucano 1.04 -> 17

Rotor 0.7a -> 17

Hermann 2.8 64-bit -> 17

Pawny 0.3.1 64-bit -> 17

DanaSah 5.00 -> 17

Loop 13.6 (Loop 2007) 64-bit 4CPU -> 17

IvanHoe 9.46h 32-bit -> 16

Alfil 13.1 64-bit 4CPU -> 16

Scorpio 2.7.5 64-bit -> 16

MinkoChess 1.3 64-bit 4CPU -> 16

Booot 5.1.0 -> 16

Delphil 2.9g 64-bit 4CPU -> 16

Pharaon 3.5.1 4CPU -> 16

Crafty 23.5 64-bit -> 16

Tornado 4.88 64-bit 4CPU -> 16

RedQueen 1.1.3 64-bit 4CPU -> 16

Twisted Logic 20071202x -> 16

Daydreamer 1.75 64-bit -> 16

Nebula 1.5 64-bit 4CPU -> 16

Thinker 5.4D Inert 64-bit 4CPU -> 16

Quazar 0.4 64-bit -> 16

Toga Returns 1.1 4CPU -> 16

Delfi 5.4 -> 16

Arasan 10.1 -> 16

Hiarcs 14 -> 16

Bright 0.5c 4CPU -> 16

Nemo 1.0.1 64-bit -> 16

Spark 1.0 64-bit -> 16

Chronos 1.9.9 64-bit -> 16

Hiarcs 11 -> 16

RomiChess P3L 32-bit -> 15

Gull II 64-bit 4CPU -> 15

Chiron 1.5 64-bit 4CPU -> 15

OliThink 5.3.2 32-bit -> 14

Strelka 5.5 32-bit -> 14

Stockfish 2.3.1 32-bit -> 14

Daydreamer 1.5 -> 14

Critter 1.6a 32-bit -> 14

Komodo 5 32-bit -> 14

Bagatur 1.3a 32-bit -> 14

Butcher 1.64 32-bit -> 14

Texel 1.01 64-bit -> 13

Glaurung 2.2 64-bit -> 12

Protector 1.4.0 64-bit -> 12

Ifrit m1.8 32-bit -> 10

Alex 2.09 -> 10

Deep Shredder 12 64-bit OA On 4CPU -> 8

Arasan 15.1 64-bit -> 4

Naum 4.2 32-bit -> 4

DiscoCheck 4.0.1 64-bit -> 4

TJchess 1.1 32-bit -> 4

Dirty 0.99n -> 4

Shredder 12 32-bit OA Off -> 4

Octochess r4741 64-bit -> 3

Dirty 5Sep2012 64-bit -> 3

Alfil 13.1 64-bit -> 3

Godel 2.3.7 64-bit -> 3

Cheng3 1.07 64-bit -> 3

Philou 3.7.1 64-bit -> 3

Rybka 4.1 32-bit -> 3

Deuterium 12.01.30.1070 64-bit -> 3

ProDeo 1.83c -> 3

RedQueen 1.1.3 64-bit -> 3

DeepSaros 3.0 32-bit -> 2

Houdini 3 32-bit -> 2

Vitruvius 1.11C 32-bit -> 2

Chiron 1.5 32-bit -> 2