**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**

Protector 1.5.0 64-bit -> 742

Jazz 721 64-bit -> 638

Firefly 2.6.0 64-bit -> 543

Rodent 1.0 64-bit -> 446

EXchess 7.03b 64-bit 2CPU -> 436

Tornado 4.88 64-bit -> 350

Hannibal 1.3 64-bit -> 347

Toga II 3.0 -> 327

Dirty 08Apr2013 64-bit -> 190

Capivara LK0.09a02 64-bit -> 136

Chiron 1.5 64-bit -> 131

Bobcat 3.25 64-bit -> 82

Quazar 0.4 64-bit -> 82

Dirty 05Sep2012 64-bit -> 82

Texel 1.01 64-bit -> 80

Spike 1.4 Leiden -> 72

Naum 4.2 64-bit -> 72

Twisted Logic 20090922 64-bit -> 72

Spark 1.0 64-bit -> 71

Chronos 1.9.9 64-bit -> 71

Frenzee 3.5.19 64-bit -> 71

Sjakk 2.0 -> 66

Octochess r4984 64-bit -> 63

Chess Tiger 2007.1 -> 58

Deep Sjeng c't 2010 -> 50

Scorpio 2.75 64-bit -> 50

DiscoCheck 4.1 64-bit -> 50

Gaviota 0.86 64-bit -> 50

Critter 1.6a 64-bit -> 50

Leila 0.53h -> 43

Deep Shredder 12 64-bit OA On 1CPU -> 41

Rybka 2.3.2a 64-bit -> 40

Booot 5.1.0 -> 40

Crafty 23.5 64-bit -> 40

Arasan 15.2 64-bit -> 40

Thinker 5.4c Inert 64-bit -> 40

Gull 1.0a 64-bit -> 40

Zappa Mexico II 64-bit -> 40

Nemo 1.0.1b 64-bit -> 40

Bright 0.4a -> 40

MinkoChess 1.2 64-bit -> 40

EXchess 7.03b 64-bit -> 39

Madeleine 0.2 -> 39

Anechka 0.08 -> 39

Waxman 2011 -> 39

Rhetoric Lite -> 39

ProDeo 1.85 -> 39

Simplex 0.9.8 64-bit -> 39

Horizon 4.4 -> 39

BugChess2 1.9 64-bit -> 37

Ant 2006-F -> 36

Muse 0.899b -> 36

NagaSkaki 5.12 -> 36

Esc 1.16 -> 35

Terra 3.4 -> 35

Zeus 1.29 -> 35

Popochin 3.2 -> 34

E.T. Chess 13.01.08 -> 32

Arasan 15.1 64-bit 2CPU -> 32

Mediocre 0.5 -> 32

Gull 1.2 64-bit -> 32

Clarabit 1.00 64-bit -> 32

Der Bringer 1.9 -> 32

Sjakk 1.1.9 -> 32

Hannibal 1.2 64-bit -> 32

Colossus 2008b -> 32

Bobcat 2.75 64-bit 2CPU -> 32

Nejmet 3.07 -> 32

Deep Junior 13.3 64-bit -> 32

Movei 00.8.438 (10 10 10) -> 32

AliChess 4.25 -> 32

Arasan 15.1 64-bit -> 32

Comet B50 -> 32

Patzer 3.80 -> 32

Cheng3 1.07 64-bit -> 32

Queen 4.03 -> 32

Alaric 707 -> 32

Delfi 5.4 -> 32

Rybka 4.1 64-bit -> 32

Hiarcs 14 -> 32

Gaia 3.5 64-bit -> 32

Natwarlal 0.14 -> 32

Dragon 4.6 -> 32

Gosu 0.16 -> 32

WildCat 8 -> 32

Fritz 13 -> 32

Deuterium 12.01.30.1070 64-bit -> 32

Stockfish 2.2.2 64-bit -> 32

Quark 2.35 -> 32

LambChop 10.99 -> 32

Phalanx XXIII -> 32

BikJump 2.01 64-bit -> 32

Plisk 0.2.7d 64-bit -> 32

Wing 2.0a -> 32

King of Kings 2.56 -> 32

Amy 0.8.7b DC -> 31

Alex 2.14a 64-bit -> 31

Capivara LK0.08a11 64-bit -> 31

BugChess2 1.9 64-bit 2CPU -> 31

Ktulu 9.0 -> 31

Jonny 4.00 2CPU -> 31

Gandalf 6 -> 31

Crafty 23.4 64-bit -> 31

SmarThink 1.20 64-bit -> 31

Protector 1.4.0 64-bit -> 30

Toga II 1.4.1SE -> 30

EXchess 6.50b 64-bit -> 26

Mephisto Gideon Professional -> 10

DiscoCheck 3.71 64-bit -> 10

Komodo 3 64-bit -> 10

RedQueen 1.1.3 64-bit -> 10

Rodin 5.1 -> 10

Glass 1.9 64-bit -> 9

Yace 0.99.87 -> 9

Jonny 4.00 -> 9

Nebula 2.0 64-bit -> 8

Gerbil 0.2 64-bit -> 8

RDChess 3.23 -> 7

Genesis 2.01b -> 7

GK 0.90 64-bit -> 7

ECE 11.01 -> 7

Adam 3.3 -> 7

CyberPagno 2.1 -> 7

Chesley r323 64-bit -> 7

Ifrit m1.8 64-bit -> 7

Ayito 0.2.994 -> 7

Joker 1.1.14 -> 7

Gibbon 2.57a 64-bit -> 5

PostModernist 1016 -> 4

Chispa 4.0.3 -> 4

Shallow 1.0 64-bit -> 4

Thor's Hammer 2.29 64-bit -> 4

KnightX 1.92 -> 3

Sorgenkind 0.4 -> 3

Sage 3.53 -> 3

Chezzz 1.0.3 -> 3

Aice 0.99.2 -> 3

Ares 1.004 -> 3

Tytan 9.32 64-bit -> 3

Myrddin 0.86 64-bit -> 3

Scidlet 3.61 x64 -> 3