For various reasons, there may be some engines that do not appear on our lists, therefore it is useful to look at other rating lists as well as ours.
The inclusion or exclusion of engines in our lists should not be taken as our group making a statement about their legality or status. However, where there is controversy surrounding an engine in our lists, we have indicated this.
We test chess engines for our own enjoyment and receive no payment for doing so.
The latest CCRL Rating Lists and Statistics are available for viewing from the following links:
http://computerchess.org.uk/ccrl/4040.live/ (40/40)
http://www.computerchess.org.uk/ccrl/404.live/ (40/4)
http://www.computerchess.org.uk/ccrl/404FRC/ (FRC 40/4)
Please note that the three lists are often updated separately to each other.
The links given in each update report will give you the currently up to date lists.
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, but you will need to remove the .live from the links if you wish to access these (for example http://computerchess.org.uk/ccrl/4040 ). 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.
40/40 games submitted this week
Abrok 5.0 -> 10
Alex 2.14a 32-bit -> 13
Alfil 8.1.1 -> 28
Amyan 1.72 -> 28
AnMon 5.75 -> 4
Arasan 13.1 32-bit -> 66
Arasan 9.2 -> 2
Aristarch 4.50 -> 4
Bison 9.11 -> 26
Bobcat 2.75 32-bit -> 39
Bobcat 2.75 64-bit -> 24
Bobcat 20110220 32-bit -> 6
Booot 5.1.0 -> 24
Bright 0.2c -> 5
Bright 0.4a -> 3
Bruja 1.9.1 64-bit -> 24
Brutus 7.02b -> 11
Brutus 8.05 32-bit -> 4
BugChess2 1.6.2 -> 6
BugChess2 1.9 32-bit -> 26
CM10th Default -> 2
CM10th Paralyse -> 6
Cheng3 1.03 32-bit -> 2
Cheng3 1.04 32-bit -> 7
Cheng3 1.05 32-bit -> 19
Chess Tiger 15 -> 3
Chess Tiger 2007 -> 4
Chess Tiger 2007.1 -> 10
Chessmaster 11 Archangel -> 10
Chessmaster 11 Conqueror -> 63
Chronos 1.9.9 32-bit -> 28
Colossus 2008b -> 13
Counter 1.0 -> 2
Crafty 22.4 32-bit -> 2
Crafty 22.8 32-bit -> 7
Crafty 23.4 32-bit -> 28
Critter 1.2 32-bit -> 24
Critter 1.2 64-bit -> 137
CuckooChess 1.10 -> 10
CuckooChess 1.11 -> 1
Cyrano 0.2f -> 2
Cyrano 0.6b17 -> 13
DanaSah 2.85 -> 3
DanaSah 4.66 -> 8
Deep Junior 12.5 32-bit 1CPU -> 8
Deep Sjeng c't 2010 -> 6
Delfi 5.4 -> 34
Delphil 2.3 -> 4
Delphil 2.7 -> 24
Delphil 2.8 -> 11
Deuterium 11.01.28.159 -> 45
Dirty 24Apr2011 32-bit -> 3
Dirty 25Aug2011 32-bit -> 29
Dirty 25Aug2011 64-bit -> 24
E.T. Chess 13.01.08 -> 13
Eeyore 1.52 64-bit -> 24
Frenzee 3.0 -> 4
Frenzee Feb08 32-bit -> 10
Gandalf 6 -> 10
GarboChess 3.0 32-bit -> 38
GarboChess 3.0 64-bit -> 215
Gaviota 0.75.7 32-bit -> 2
Gaviota 0.84 32-bit -> 17
Gaviota 0.84 64-bit -> 215
Glass 1.7 32-bit -> 85
Glass 1.7 64-bit -> 24
Glaurung 1.0.2 32-bit -> 3
Gull 1.0a 32-bit -> 8
Gull 1.2 32-bit -> 24
Hamsters 0.2 -> 2
Hamsters 0.7.1 -> 45
Hannibal 1.1 32-bit -> 26
Hermann 2.8 32-bit -> 4
Hermann 2.8 64-bit -> 24
Hiarcs 13.2 -> 8
Hiarcs 9 -> 3
Houdini 1.5a 64-bit SSE -> 20
Houdini 2.0 32-bit -> 123
Houdini 2.0 64-bit SSE -> 24
Jonny 4.00 -> 16
Kiwi 0.6d -> 24
Komodo 2.01 64-bit -> 14
Komodo 3 32-bit -> 24
Komodo 3 64-bit -> 82
Komodo 3 64-bit SSE -> 22
Ktulu 8 -> 5
Ktulu 9 -> 10
LittleThought 1.04 32-bit -> 2
Loop 13.6 (Loop 2007) 32-bit -> 10
LoopList 6.00 -> 3
Matacz 1.1 -> 2
N2 0.4 32-bit -> 4
Naraku 1.31 -> 3
Naraku 1.4 -> 16
Naum 1.91 32-bit -> 10
Naum 4.2 32-bit -> 6
Naum 4.2 64-bit -> 44
Onno 1.0 32-bit -> 4
Pawny 0.3 64-bit -> 216
Petir 4.999999 -> 4
Pharaon 3.5.1 -> 49
Philou 3.60 -> 36
Pro Deo 1.1 -> 2
Pro Deo 1.6 -> 21
Protector 1.4.0 32-bit -> 24
Pseudo 0.7c -> 4
RedQueen 1.0.0 32-bit -> 72
RedQueen 1.0.0 64-bit -> 24
Rodin 4.0 -> 39
Rotor 0.6 -> 20
Ruffian 2.1.0 -> 13
Rybka 2.3.2a 32-bit -> 6
Rybka 3 64-bit -> 14
Rybka 4.1 32-bit -> 6
Rybka 4.1 64-bit -> 50
SOS 5.1 -> 28
Scorpio 2.1 32-bit -> 3
Scorpio 2.7 32-bit -> 26
Shredder 12 32-bit OA Off -> 7
Shredder 12 32-bit OA On -> 6
Sloppy 0.2.3 64-bit -> 47
Slow Chess Blitz WV2 -> 11
SmarThink 1.00 32-bit -> 2
SmarThink 1.20 32-bit -> 10
Spark 1.0 32-bit -> 24
SpiderChess 070603 -> 24
Spike 1.2 Turin -> 3
Spike 1.4 Leiden -> 24
Stockfish 2.1.1 32-bit -> 24
Stockfish 2.1.1 64-bit -> 31
The Baron 2.23 32-bit -> 4
Thinker 5.4D Inert 32-bit -> 24
Tornado 2.2 -> 7
Tornado 3.21a 32-bit -> 8
Tornado 4.4 32-bit -> 26
Trace 1.36 -> 47
Twisted Logic 0.085 -> 8
Twisted Logic 20070915 -> 2
Twisted Logic 20100131x 32-bit -> 13
Typhoon 1.00-348 -> 2
Typhoon 1.00-358 -> 24
Ufim 8.02 -> 28
Umko 1.2 32-bit -> 21
WildCat 8 -> 49
Xpdnt 091007 -> 24
Yace 0.99.87 -> 24
40/4 games submitted this week
Abrok 5.0 -> 32
Alaric 707 -> 64
Alfil 8.1.1 Optimized -> 64
Amy 0.8.7b DC -> 32
Amyan 1.72 -> 61
AnMon 5.75 -> 96
Arasan 13.1 64-bit -> 733
Aristarch 4.50 -> 64
Armageddon 2.308 -> 30
Atlas 3.14b 64-bit -> 32
Bestia 0.90 -> 32
BigLion 2.23x -> 30
BikJump 2.01 64-bit -> 32
Bison 9.11 64-bit -> 32
Bobcat 2.75 64-bit -> 63
Booot 5.1.0 -> 32
Bright 0.5c -> 32
Bruja 1.9 64-bit JA No-int-book -> 32
Brutus 8.05 64-bit -> 32
BugChess2 1.9 64-bit -> 32
Cerebro 3.03d -> 32
Cheng3 1.03 64-bit -> 32
Chess Tiger 2007.1 -> 32
ChessMind 0.82 -> 402
Chronos 1.9.9 64-bit -> 32
Cilian 4.14 -> 32
Colossus 2008b -> 64
Crafty 23.4 64-bit -> 32
Cyrano 06b17 64-bit -> 62
DanaSah 4.24 -> 32
Daydreamer 1.75 64-bit -> 64
Delfi 5.4 -> 64
Deuterium 11.01.28.159 -> 64
Dorky 4.3 64-bit -> 32
Dorky 4.3 64-bit 2CPU -> 32
E.T. Chess 13.01.08 -> 32
Faile 1.4.4 -> 30
Frenzee 3.5.19 64-bit -> 32
GNU Chess 5.07.1705b (TCEC) 64-bit -> 32
GNU Chess 5.07.173b 64-bit -> 32
Gaia 3.5 64-bit -> 32
Gandalf 6 -> 32
GarboChess 2.20 64-bit -> 32
Gaviota 0.84 64-bit -> 1846
Glass 1.7 64-bit -> 31
Green Light Chess 3.01.2.2 -> 64
Hamsters 0.71 -> 64
Hannibal 1.1 64-bit -> 32
Hermann 2.6 64-bit -> 64
Hermann 2.8 64-bit 2CPU -> 571
Jabba 1.0 64-bit -> 32
JanWillem 1.13 -> 32
Jonny 4.00 -> 32
Little Goliath Evolution 3.12 -> 63
Loop 13.6 (Loop 2007) 64-bit -> 28
Marvin 1.3.0 -> 31
Matheus 2.3 -> 28
Movei 00.8.438 (10 10 10) -> 32
N2 0.4 64-bit -> 64
Naraku 1.31 -> 32
Naum 2.0 32-bit -> 32
Petir 4.39 -> 32
Petir 4.999999 -> 32
Pharaon 3.5.1 -> 32
Philou 3.60 -> 32
Pro Deo 1.2 -> 32
Pro Deo 1.6(2007-11-14) -> 32
Protector 1.4.0 64-bit -> 32
Pseudo 0.7c -> 32
Rodin 4.0 -> 32
Rotor 0.6 -> 63
Ruffian 1.0.5 -> 32
Ruffian 2.1.0 -> 64
SOS 5.1 -> 32
SSEChessII 2.05 DC -> 31
Scorpio 2.7 64-bit -> 32
Sloppy 0.2.2 64-bit -> 32
Slow Chess Blitz WV2.1 -> 63
Small Potato 0.6.1 -> 31
SmarThink 0.17a -> 32
SmarThink 1.20 64-bit -> 32
Spark 1.0 64-bit -> 32
Spike 1.4 Leiden -> 32
The Baron 2.23 64-bit -> 65
Thinker 5.4c Inert 64-bit -> 32
Toga II 1.4.1SE -> 32
Tornado 4.40 64-bit -> 32
Trace 1.37a -> 32
Twisted Logic 20090922 64-bit -> 32
Ufim 8.02 -> 32
Umko 0.9 64-bit -> 28
WildCat 8 -> 32
Wing 2.0a -> 31
Yace 0.99.87 -> 31
Zappa 1.1 64-bit -> 32
