**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**

Stockfish 4 64-bit -> 216

MangoPaolaAjedrez 1.0 64-bit -> 200

Gull 2.2 64-bit 4CPU -> 197

Stockfish 4 64-bit 4CPU -> 186

Komodo 5.1 MP 64-bit -> 185

Sting SF 3 64-bit 4CPU -> 163

Maverick 0.2 64-bit -> 162

Zeta Dva 0220 64-bit -> 154

GreKo 10.2 64-bit -> 151

MadChess 1.2 64-bit -> 96

Houdini 3 Tactical 64-bit -> 82

Houdini 3 64-bit 4CPU -> 70

Houdini 3 64-bit -> 68

Capivara LK 0.09a02a 64-bit -> 68

EveAnn 1.71a -> 67

Ziggurat 0.22 64-bit -> 65

Shallow r688 64-bit -> 64

Rybka 4.1 64-bit 4CPU -> 64

Rhetoric 1.0 64-bit -> 63

Critter 1.6a 64-bit 4CPU -> 56

Komodo CCT 64-bit -> 56

Myrddin 0.86 64-bit -> 51

FireFly 2.6.0 64-bit -> 50

ECE 12.01 -> 50

Komodo 5.1 MP 64-bit 4CPU -> 47

Fischerle 0.9.30b 64-bit -> 47

Jazz 721 64-bit -> 46

DanaSah 5.06 -> 46

Waxman 2013 -> 46

ProChess 1.02AD -> 45

Pepito 1.59 64-bit -> 44

Stockfish 1.5.1 32-bit -> 44

Deep Shredder 12 64-bit -> 44

Quazar 0.4 32-bit -> 44

Protector 1.4.0 64-bit -> 44

Gull R375 64-bit -> 44

Nemo 1.0.1 32-bit -> 44

Thinker 5.4d Inert 64-bit -> 44

Spark 1.0 64-bit -> 44

Hannibal 1.2 32-bit -> 44

Rybka 1.2 32-bit -> 44

Toga II 3.0 -> 44

Naum 3 32-bit -> 44

Mediocre 0.5 -> 43

Gibbon 2.57a 64-bit -> 43

Bagatur 1.3a 64-bit -> 42

Butcher 1.64 64-bit -> 41

Naum 4.2 64-bit 4CPU -> 41

Alex 2.14a 64-bit -> 40

OliThink 5.3.2 64-bit -> 40

TJchess 1.1 64-bit -> 40

Protector 1.5.0 64-bit 4CPU -> 40

Ifrit m1.8 64-bit -> 40

Hiarcs 14 4CPU -> 39

Carballo 0.8 -> 37

Critter 1.6a 64-bit -> 34

ChessKISS 1.7 64-bit -> 33

Tigran 2.4 64-bit -> 33

Rybka 4.1 64-bit -> 32

Strelka 5.5 64-bit -> 32

NirvanaChess 1.1 64-bit -> 31

Delphil 3.0 64-bit -> 31

Betsabe II 1.30 64-bit -> 30

Tucano 2.00 64-bit -> 27

DanaSah 5.07 -> 27

Cheese 1.5 64-bit -> 27

Bouquet 1.5 64-bit 4CPU -> 26

Bouquet 1.5 64-bit -> 26

DeepSaros 3.0 64-bit -> 26

Chiron 1.1a 64-bit 4CPU -> 24

Rybka 4 64-bit 4CPU -> 24

Naum 1.91 64-bit -> 24

Pawny 1.0 64-bit -> 24

Cheng3 1.07 64-bit -> 23

Latista (Sinobyl) 1.5 -> 23

DeepSaros 3.3b 64-bit -> 22

Chiron 1.5 64-bit -> 22

NirvanaChess 1.2 64-bit -> 21

Sting SF 3 64-bit -> 20

Vajolet 2.03 -> 20

Texel 1.02 64-bit -> 20

Chiron 1.1a 64-bit -> 20

IvanHoe 9.46h 64-bit 4CPU -> 20

Pupsi2 0.09 -> 18

Glass 2.0 64-bit -> 18

Sjakk 2.0 64-bit -> 18

RobboLito 0.21Q 64-bit 4CPU -> 18

Vitruvius 1.11C 64-bit 4CPU -> 18

iCE 1.0 64-bit -> 18

Stockfish 3 64-bit 4CPU -> 18

RomiChess P3L 64-bit -> 17

Rodin 6.0 -> 17

Francesca MAD 0.19 -> 17

Rybka 2.3.2a 64-bit -> 16

Dabbaba 7.49 -> 16

Soldat III 0.172 -> 16

Spike 1.4 Leiden -> 16

Carballo 0.4 -> 16

Chiron 1.5 64-bit 4CPU -> 16

Hannibal 1.3 64-bit -> 16

Bouquet 1.6 64-bit 4CPU -> 15

Philou 3.7.1 64-bit -> 14

Nebula 2.0 64-bit -> 14

Arasan 12.0 64-bit -> 14

Atlas 3.50 64-bit -> 13

nanoSzachy 4.0 64-bit -> 13

Alfil 13.1 64-bit -> 13

Rotor 0.8 -> 13

Djinn 0.987 64-bit -> 13

Tigran 2.3 64-bit -> 11

Gull 1.2 64-bit -> 10

Bubble 1.5 -> 10

Arasan 10.2 32-bit -> 10

ZCT 0.3.2500 -> 10

BlackMamba 1.4 64-bit -> 10

Cupcake 1.0 -> 10

Sjakk 1.1.6 -> 10

Monik 2.2.3 32-bit -> 10

Buzz 0.07 -> 10

Monarch 1.7 -> 10

AdroitChess 0.3 32-bit -> 10

PLP 1661571 -> 9

Gull 2.2 64-bit -> 9

ECE 1.1 -> 9

Protector 1.5.0 64-bit -> 8

IvanHoe 9.46h 64-bit -> 8

Naum 4.2 64-bit -> 8

Predateur 2.2.1 64-bit -> 7

Micro-Max 4.8 -> 6

Vitruvius 1.11C 64-bit -> 6

RedQueen 1.1.4 64-bit -> 6

Bouquet 1.6 64-bit -> 6

BeRoChess 1.00 32-bit -> 6

Jabba 13032012 -> 6

DoubleCheck 1.0 64-bit -> 6

Feuerstein 0.4.4.2 -> 6

BSC 3.9++ 32-bit -> 4

FireFly 2.5.13 64-bit -> 4

Deuterium 13.1.31.113 64-bit -> 4

Glass 0.1.0c -> 4

iCE 0.1 -> 4

Bagatur 1.2d 32-bit -> 4

AnMon 5.60 -> 4

Cheese 1.4 64-bit -> 4

Vajolet 1.62.1 -> 4

Quazar 0.2 64-bit -> 3

Plisk 0.2.6 64-bit -> 2

DoubleCheck 2.1 32-bit -> 2

Feuerstein 0.4.6 -> 2