**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**

ALChess 1.5b -> 34

APILChess 1.05r1b -> 31

Adamant 1.7 -> 34

Alaric 707 -> 64

Aldebaran 0.7.0 -> 34

Alfil 12 MT -> 32

Amy 0.8.7b DC -> 64

Amyan 1.72 -> 64

AnMon 5.75 -> 64

Arasan 14.3 64-bit -> 573

Atlas 3.25 64-bit -> 640

BamBam -> 32

Beaches 2.32 -> 31

Belzebub 0.67 -> 34

Blikskottel 0.8 -> 30

Bobcat 3.25 64-bit -> 64

Bouquet 1.5 64-bit 4CPU -> 114

BugChess2 1.9 64-bit -> 64

Cecir 3.5 -> 34

Celes 0.77c -> 34

Cheng3 1.07 64-bit -> 64

Chess Tiger 2007.1 -> 32

ChessterfieldCL i5a -> 33

Chiron 1.1a 64-bit 4CPU -> 62

Chronos 1.9.9 64-bit -> 64

Clueless V1.4 -> 66

Colossus 2008b -> 95

Comet B50 -> 64

Counter 1.2 -> 64

Crafty 23.4 64-bit -> 32

Critter 1.4 64-bit -> 144

Critter 1.6a 64-bit -> 344

Critter 1.6a 64-bit 4CPU -> 10

Dabbaba 2.62 -> 29

DanaSah 4.24 -> 32

Deep Fritz 13 4CPU -> 250

Deep Junior 13.3 64-bit -> 413

Deep Junior 13.3 64-bit 4CPU -> 12

Deep Shredder 12 64-bit OA On 4CPU -> 10

DeepSaros 3.1 64-bit 4CPU -> 114

Delfi 5.4 -> 32

Der Bringer 1.9 -> 64

Deuterium 12.01.30.1070 64-bit -> 732

Dirty 25Aug2011 64-bit -> 32

Djinn 0.925x -> 32

Djinn 0.969 64-bit -> 734

Dragon 4.6 -> 64

E.T. Chess 13.01.08 -> 96

Eagle 0.7.5 -> 34

Eden 0.0.13 -> 32

Eeyore 1.52 64-bit -> 63

Elf 1.3.0 -> 34

Enigma 1.1.4 -> 34

Exacto 0.d -> 64

Frenzee 3.5.19 64-bit -> 64

Fritz 13 -> 143

GNU Chess 5.07.173b 64-bit -> 127

Gaia 3.5 64-bit -> 63

Gandalf 6 -> 95

GarboChess 2.10 64-bit -> 96

Gaviota 0.85.1 64-bit -> 32

Glass 1.9 64-bit -> 96

Gosu 0.16 -> 64

GreKo 9.7 64-bit -> 96

Grizzly 1.40.1b -> 33

Gull II b2 64-bit 4CPU -> 62

Hannibal 1.2 64-bit -> 62

Heracles 0.6.16 -> 65

Hermann 2.8 64-bit -> 32

Hiarcs 14 4CPU -> 374

Houdini 1.5a 64-bit 4CPU -> 114

Houdini 2.0c 64-bit -> 144

Houdini 3 64-bit -> 344

Houdini 3 64-bit 4CPU -> 692

Houdini 3 Tactical 64-bit -> 200

Hussar 0.4 -> 64

IACH 0.56z -> 34

IQ23.003 -> 34

IvanHoe 9.46h 64-bit 4CPU -> 62

JChess 1.0 -> 31

Jonny 4.00 -> 32

Kanguruh 1.93 -> 1085

Komodo 3 64-bit -> 112

Komodo 5 64-bit -> 406

Ktulu 9.0 -> 60

LambChop 10.99 -> 63

Larsen VB 0.05.0001 -> 31

Laurifer 1.0 -> 34

Leila 0.53h -> 64

Little Goliath Evolution 3.12 -> 32

LittleThought 1.052 64-bit -> 64

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

MadChess 1.0 -> 246

Matacz 1.4 -> 64

MiniMardi 1.3 -> 64

Mizar 3.0 -> 34

Morphy 3.22 -> 34

Movei 00.8.438 (10 10 10) -> 96

Muse 0.899b -> 64

Naum 4.2 64-bit 4CPU -> 110

Needle 0.531 -> 34

Nejmet 3.07 -> 64

Nero 6.1 -> 31

Numpty Omega -> 30

Patzer 3.80 -> 64

Pawny 0.3 64-bit -> 32

Pepito 1.59.2 64-bit -> 32

Petir 4.999999 -> 64

Phalanx XXIII -> 64

Pharaon 3.5.1 -> 32

Piranha 0.5 -> 65

PostModernist 1016 -> 64

Predateur 2.1 64-bit -> 31

Protector 1.4.0 64-bit 4CPU -> 62

Purple Haze 2.0 -> 32

Quark 2.35 -> 64

Rainman 0.7.5 -> 34

Ranita 2.4 -> 34

Robin 0.983 -> 34

Roce 0.0390 -> 32

Rodin 5.1 -> 32

RomiChess P3L 64-bit -> 64

Rotor 0.7a -> 32

Ruffian 2.1.0 -> 64

Rybka 2.3.2a 64-bit 4CPU -> 114

Rybka 4 64-bit -> 144

Rybka 4.1 64-bit -> 376

Rybka 4.1 64-bit 4CPU -> 10

SEE 0.6.9 -> 34

SharpChess2 2.6 -> 32

Simontacchi 1.81 -> 34

Simplex 0.9.8 64-bit -> 64

Sloppy 0.2.2 64-bit -> 64

Slow Chess Blitz WV2.1 -> 63

SmarThink 1.20 64-bit -> 64

SnailChess 4.013 -> 34

Soldat 0.25b -> 34

Spark 1.0 64-bit 4CPU -> 10

SpiderChess 070603 -> 60

Spike 1.4 Leiden 4CPU -> 10

Sting SF 2 64-bit 4CPU -> 114

Stockfish 2.2.2 64-bit -> 375

Stockfish 2.3.1 64-bit -> 143

Stockfish 2.3.1 64-bit 4CPU -> 263

Storm 0.6 -> 34

Strelka 5.5 64-bit -> 111

Tarrasch Toy Engine 0.906 -> 31

Texel 1.01 64-bit -> 32

The Baron 2.23 64-bit -> 63

Tony's Chess 0.02 -> 465

Twisted Logic 20090922 64-bit -> 32

Ufim 8.02 -> 32

Vajolet 0.4.1 -> 32

Virutor Chess 1.1 -> 30

Vitruvius 1.11C 64-bit 4CPU -> 12

Warrior 1.0.3 -> 62

WildCat 8 -> 96

Zappa Mexico II 64-bit 4CPU -> 62

Zotron 4.4.6 -> 34

pikoSzachy 4.0 -> 731