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
Hamsters 0.7.1 -> 1154
BikJump 2.01 64-bit -> 1087
Stockfish 4 64-bit -> 946
Komodo 5.1 MP 64-bit -> 869
Komodo 5.1 MP 64-bit 4CPU -> 786
MorphyChess 1.0.5 -> 598
Rhetoric 1.0 64-bit -> 447
Octochess r5132 64-bit -> 446
Cinnamon 1.1c 64-bit -> 414
Delphil 3.0 64-bit -> 383
Waxman 2013 -> 373
Chess 4.1a -> 346
Rotor 0.8 -> 317
Murka 3 64-bit -> 223
Protector 1.5.0 64-bit -> 160
Spike 1.4 Leiden -> 160
Houdini 3 64-bit -> 160
Rybka 4.1 64-bit -> 160
Naum 4.2 64-bit -> 160
Spark 1.0 64-bit -> 160
Hannibal 1.3 64-bit -> 160
Critter 1.6a 64-bit -> 160
Gull 2.2 64-bit -> 148
Gull 2.1 64-bit -> 147
Komodo CCT 64-bit -> 80
BigLion 2.23x -> 66
Colossus 2008b -> 66
Ufim 8.02 -> 66
CyberPagno 2.1 -> 66
Alaric 707 -> 66
Trace 1.37a -> 66
Delfi 5.4 -> 65
The Baron 2.23 64-bit -> 65
Chispa 4.0.3 -> 64
Ktulu 9 -> 64
Crafty 23.5 64-bit -> 64
Twisted Logic 20090922 64-bit -> 64
Gaviota 0.86 64-bit -> 64
SmarThink 1.20 64-bit -> 64
BugChess2 1.9 64-bit -> 63
Bright 0.5c -> 63
Jonny 4.00 -> 63
Zappa Mexico II 64-bit 4CPU -> 51
Toga II 1.4 beta5c 4CPU -> 51
Spark 1.0 64-bit 4CPU -> 51
Critter 1.6a 64-bit 4CPU -> 51
Deep Shredder 12 64-bit 4CPU -> 51
Houdini 2.0c 64-bit 4CPU -> 51
Naum 4.2 64-bit 4CPU -> 51
Deep Sjeng WC2008 64-bit 4CPU -> 51
Rybka 4.1 64-bit 4CPU -> 51
Deep Sjeng 3.0 64-bit 4CPU -> 51
Deep Junior 13.3 64-bit 4CPU -> 51
Houdini 3 64-bit 4CPU -> 51
Spike 1.4 Leiden 4CPU -> 50
Protector 1.4.0 64-bit 4CPU -> 50
Stockfish 3 64-bit 4CPU -> 50
HeavyChess 0.13 beta -> 38
Tristram 3.36 -> 38
MSCP 1.6h -> 38
BeRoChess 1.00 32-bit -> 38
Ziggy 0.7 -> 38
Mint 2.3 -> 38
Zoidberg 0.1 -> 38
JARS 1.75a -> 37
Cmcchess 2.5 -> 37
Macromix 2.01 -> 37
Darky 0.5d -> 37
SharpChess2 2.6.9 -> 35
E.T. Chess 13.01.08 -> 34
Genesis 2.0 -> 34
Naum 2.0 64-bit -> 34
Bright 0.2c -> 34
List 5.12 -> 34
Clarabit 1.00 64-bit -> 34
Thinker 4.7a -> 34
Atlas 2.20 -> 34
Pseudo 0.7c -> 34
Crafty 21.5 64-bit -> 34
Ghost 0.14 -> 34
ProDeo 1.6 -> 34
RDChess 3.23 -> 34
InmiChess3.06N -> 34
GK 0.90 64-bit -> 34
Abulafia 0.61 -> 34
Fritz 5.32 -> 34
Ruffian 1.0.5 -> 34
Movei 00.8.438 (10 10 10) -> 34
Sunsetter 10.3 64-bit -> 34
Madeleine 0.2 -> 34
Booot 4.13.1 -> 34
Ktulu 4.2 -> 34
Parrot 07.07.22 -> 34
Nesik 0.7.0 alpha -> 34
Bodo 0.2b -> 34
WJChess 1.64 -> 34
SmarThink 0.17a -> 34
Uralochka 1.1b -> 34
Aristarch 4.50 -> 34
Matheus 2.3 -> 34
Fortress 1.62 -> 34
AnMon 5.60 -> 34
Slow Chess Blitz WV2.1 -> 34
Bestia 0.90 -> 34
Cyrano 0.6b17 64-bit -> 34
SOS 5.1 -> 34
Anaconda 2.0.1 -> 34
WildCat 8 -> 34
Monarch 1.7 -> 34
Alf 1.09 -> 34
Petir 4.999999 -> 34
Zappa 1.1 64-bit -> 34
Scorpio 2.0 32-bit -> 34
Jonny 2.83 32-bit -> 34
Lime 66 -> 34
Latista (Sinobyl) 1.5 -> 34
Gerbil 0.2 64-bit -> 34
Pharaon 3.5.1 -> 34
Wing 2.0a -> 34
BugChess2 1.5.2 -> 34
DelphiMAX 2.9 -> 34
NagaSkaki 5.12 -> 34
Dorky 3.48 -> 34
Ax 0.8 -> 34
Alarm 0.93.1 -> 34
Uragano 3D 0.87 -> 33
Alfil 8.1.1 Optimized -> 33
SSEChessII 2.05 DC -> 32
NirvanaChess 1.1 64-bit -> 32
Mephisto Gideon Professional -> 32
RomiChess P3L 64-bit -> 32
Marvin 1.3.0 -> 32
Little Goliath Evolution 3.12 -> 32
nanoSzachy 4.0 64-bit -> 32
EXchess 7.03b 64-bit -> 32
PostModernist 1016 -> 32
Eeyore 1.52 64-bit -> 32
Leila 0.53h -> 32
Nejmet 3.07 -> 32
Bobcat 3.25 64-bit -> 32
AnMon 5.75 -> 32
Hussar 0.4 -> 32
Dirty 20Apr2013 64-bit -> 32
Soldat III 0.172 -> 32
Deep Sjeng 3.0 64-bit -> 32
BamBam -> 32
Kanguruh 1.93 -> 32
Adam 3.3 -> 32
Rival 1.18 -> 32
Small Potato 0.6.1 -> 32
Gaia 3.5 64-bit -> 32
Cilian 4.14 -> 32
Capture R01 -> 32
Faile 1.4.4 -> 32
Ifrit m1.8 64-bit -> 32
Fritz 13 -> 32
Gandalf 6 -> 32
BSC 3.9+ 64-bit 20Jan2012 -> 32
iCE 1.0 64-bit -> 32
Ares 1.004 -> 32
Chronos 1.9.9 64-bit -> 32
JanWillem 1.13 -> 32
Loop 13.6 (Loop 2007) 64-bit -> 32
Bace 0.45 -> 32
Pepito 1.59.2 64-bit -> 32
GChess IV 0.2.0 -> 32
Simplex 0.9.8 64-bit -> 32
Quark 2.35 -> 32
LambChop 10.99 -> 32
Beowulf 2.4a 32-bit -> 32
Yace 0.99.87 -> 32
Frenzee 3.5.19 64-bit -> 32
Kitteneitor 0.22.1 -> 32
Cheese 1.5 64-bit -> 32
Amy 0.87b -> 32
OBender 3.2.x -> 31
KnightX 1.92 -> 31
Alfil 12 MT -> 31
Chess Tiger 2007.1 -> 31
Micro-Max 4.8 -> 31
Green Light Chess 3.01.2.2 -> 31
Gibbon 2.57a 64-bit -> 31
Atak 6.8 -> 31
Comet B50 -> 31
Chezzz 1.0.3 -> 31
Armageddon 2.308 -> 31
FireFly 2.6.0 64-bit -> 30
Adamant 1.7 -> 30
Sungorus 1.4 64-bit -> 30
Thinker 5.4c Inert 64-bit 4CPU -> 24
TRex 1.9 -> 7
Tyrell 1.02 -> 7
Skaki 1.23 -> 7
SamChess -> 6
Toledo nanoChess v15012010 -> 6
Pulsar 2009-9b -> 6
MrChess 2.1 -> 6
Protej 0.5.7 -> 6
Ozwald 0.43 -> 6
Dabbaba 7.49 -> 6
KillerQueen 2.0b3 -> 6
Virutor Chess 1.1 -> 6
Bismark 1.4 -> 6
MiniChessAI 1.19 -> 6
Goyaz 0.007 -> 6
Raffaela 0.1.4 -> 6
Joanna 2002 1.03 -> 6
Arabian Knight 1.51 -> 6
Marginal 0.1 -> 6
DarkFusch 0.9 -> 6
Vicki 0.041a -> 6
Kitteneitor 0.18.1 32-bit -> 6
Lodocase 240208 -> 6
DarkTemplar 0.1 -> 6
FreeChessII 2.17 -> 6
AdaChess 1.0 -> 6
Chess4j 1.2 -> 6
Project Invincible 2.04 -> 6
NG-Play 8.3 -> 6
Nanook 0.17 -> 6
Bremboce 0.6.2 -> 6
Alibaba 1.38 -> 6
NoonianChess 3206P2 -> 6
Milady 3.25 -> 6
Zoe 0.1 -> 5
Safrad 2.1.35.210 -> 5
Apep 1.01 -> 5
Tikov 0.6.3 -> 5
Revati 0.4c -> 4
Supra 15.0 -> 3
QuTeChess 1.0.1t r3 -> 3
Gringo 1.4.9b -> 2