**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**

Vicki 0.041a -> 1051

Cyrano 0.6b17 64-bit -> 912

Stockfish 3 64-bit -> 848

iCE 1.0 64-bit -> 550

Vajolet 2.03 -> 511

NG-Play 8.4 -> 508

Glass 2.0 64-bit -> 494

Kitteneitor 0.18.1 64-bit -> 427

EXchess 7.11b 64-bit -> 198

Rybka 4.1 64-bit 4CPU -> 122

Naum 4.2 64-bit 4CPU -> 120

Spike 1.4 Leiden 4CPU -> 120

Houdini 3 64-bit 4CPU -> 120

Komodo 5.1 MP 64-bit 4CPU -> 115

Critter 1.6a 64-bit 4CPU -> 111

Stockfish 3 64-bit 4CPU -> 111

Zappa Mexico II 64-bit 4CPU -> 109

Spark 1.0 64-bit 4CPU -> 109

Gull 2.1 64-bit 4CPU -> 105

RobboLito 0.21Q 64-bit 4CPU -> 100

Vitruvius 1.11C 64-bit 4CPU -> 100

Adamant 1.7 -> 98

The Baron 2.23 64-bit -> 98

Petir 4.999999 -> 98

Mizar 3.0 -> 97

SEE 0.6.9 -> 96

Hannibal 1.3 64-bit 4CPU -> 94

Quazar 0.4 64-bit -> 92

Protector 1.5.0 64-bit 4CPU -> 89

Booot 5.2.0 64-bit -> 88

Bouquet 1.6 64-bit 4CPU -> 87

Gull 1.2 64-bit -> 82

Spike 1.4 Leiden -> 82

Spark 1.0 64-bit -> 82

Thinker 5.4d Inert 64-bit -> 81

Belzebub 0.67 -> 70

Tscp 1.81 -> 67

MSCP 1.44 -> 66

Green Light Chess 3.01.2.2 -> 64

Little Goliath Evolution 3.12 -> 64

nanoSzachy 4.0 64-bit -> 64

Trace 1.37a -> 64

Hermann 2.8 64-bit -> 64

DChess 1.0.2 -> 64

Atlas 3.25 64-bit -> 63

Jester 0.84 -> 63

Pepito 1.59.2 64-bit -> 63

AnMon 5.75 -> 62

Bace 0.45 -> 61

GChess IV 0.2.0 -> 61

Komodo CCT 64-bit -> 50

Protector 1.5.0 64-bit -> 50

Deep Shredder 12 64-bit -> 50

Houdini 3 64-bit -> 50

Rybka 4.1 64-bit -> 50

Hiarcs 14 -> 50

Naum 4.2 64-bit -> 50

Deep Junior 12.5 64-bit -> 50

Chiron 1.5 64-bit -> 50

Hannibal 1.3 64-bit -> 50

Critter 1.6a 64-bit -> 50

Alaric 707 -> 44

Yace 0.99.87 -> 43

Crafty 23.5 64-bit -> 42

Purple Haze 2.0 -> 42

Gaviota 0.86 64-bit -> 42

Tarrasch Toy Engine 0.906 -> 41

Pwned 1.2 64-bit -> 40

E.T. Chess 13.01.08 -> 34

Naum 2.0 64-bit -> 34

Bright 0.2c -> 34

Grizzly 1.40.1b -> 34

Pseudo 0.7c -> 34

Needle 0.531 -> 34

ProDeo 1.6 -> 34

ALChess 1.5b -> 34

Ruffian 1.0.5 -> 34

Movei 00.8.438 (10 10 10) -> 34

Elf 1.3.0 -> 34

Piranha 0.5 -> 34

Zotron 4.4.6 -> 34

Storm 0.6 -> 34

Cecir 3.5 -> 34

Kanguruh 1.93 -> 34

SnailChess 4.013 -> 34

Rainman 0.7.5 -> 34

Warrior 1.0.3 -> 34

Aldebaran 0.7.0 -> 34

Aristarch 4.50 -> 34

Delfi 5.4 -> 34

IQ23.003 -> 34

Soldat 0.25b -> 34

JARS 1.75a -> 34

Slow Chess Blitz WV2.1 -> 34

Alfil 8.1.1 Optimized -> 34

SOS 5.1 -> 34

WildCat 8 -> 34

Morphy 3.22 -> 34

Enigma 1.1.4 -> 34

Glaurung 2.0.1 64-bit -> 34

Laurifer 1.0 -> 34

Zappa 1.1 64-bit -> 34

Exacto 0.d -> 34

Scorpio 2.0 32-bit -> 34

Celes 0.77c -> 34

Pharaon 3.5.1 -> 34

Colossus 2007d -> 34

Hamsters 0.6 -> 34

Ranita 2.4 -> 34

Robin 0.983 -> 34

MiniMardi 1.3 -> 34

Frenzee Feb08 64-bit -> 34

ChessterfieldCL i5a -> 34

List 5.12 -> 33

Eagle 0.7.5 -> 33

Booot 4.13.1 -> 33

Simontacchi 1.81 -> 33

NirvanaChess 1.1 64-bit -> 32

Mephisto Gideon Professional -> 32

SamChess -> 32

MrChess 2.1 -> 32

Spike 1.2 Turin -> 32

Deep Junior 13.3 64-bit -> 32

Ufim 8.02 -> 32

Rodin 6.0 -> 32

Rebel Century -> 32

Hamsters 0.7.1 -> 32

Tyrell 1.02 -> 32

Texel 1.01 64-bit -> 32

Cheese 1.4 64-bit -> 32

Fruit 2.3 -> 32

Anaconda 2.0.1 -> 32

Zappa Mexico II 64-bit -> 32

Bremboce 0.6.2 -> 32

Loop 13.6 (Loop 2007) 64-bit -> 32

Nemo 1.0.1b 64-bit -> 32

Deep Sjeng WC2008 64-bit -> 32

Cerebro 3.03d -> 32

Onno 1.2.70 64-bit -> 32

NoonianChess 3206P2 -> 32

Roce 0.0390 -> 32

MinkoChess 1.2 64-bit -> 32

GreKo 9.8 64-bit -> 31

Murka 2 64-bit -> 30

DanaSah 4.88 -> 16

Colossus 2008b -> 10

Rodent 1.0 64-bit -> 10

Philou 3.7.1 64-bit -> 10

Twisted Logic 20100131x 64-bit -> 10

Scorpio 2.75 64-bit -> 10

Arasan 15.6 64-bit -> 10

Bright 0.5c -> 10

DiscoCheck 4.1 64-bit -> 10

Chronos 1.9.9 64-bit -> 10

Nebula 2.0 64-bit -> 10

RedQueen 1.1.3 64-bit -> 10

Frenzee 3.5.19 64-bit -> 10

Dirty 08Apr2013 64-bit -> 10

Tornado 4.88 64-bit -> 10

Jonny 4.00 -> 10