**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 -> 68

Abrok 5.0 -> 32

Adamant 1.7 -> 67

Alaric 707 -> 54

Aldebaran 0.7.0 -> 68

Alex 2.14a 64-bit -> 32

Alfil 12 MT -> 32

Alfil 8.1.1 Optimized -> 23

Amateur 2.82 -> 95

Amy 0.8.7b DC -> 31

Amyan 1.72 -> 32

AnMon 5.75 -> 55

Arasan 14.3 64-bit -> 304

Ares 1.004 -> 31

Arion 1.7 -> 32

Aristarch 4.50 -> 54

Asterisk 0.6 -> 32

Atlas 3.25 64-bit -> 313

Averno 0.81 -> 24

Belzebub 0.67 -> 68

Bruja 1.9 64-bit JA No-int-book -> 32

Brutus 8.05 64-bit -> 23

BugChess2 1.9 64-bit -> 23

Capivara LK0.08a11 64-bit -> 593

Cecir 3.5 -> 34

Celes 0.77c -> 34

Cerebro 3.03d -> 32

Cheng3 1.07 64-bit -> 55

Chezzz 1.0.3 -> 32

Chronos 1.9.9 64-bit -> 23

Colossus 2008b -> 55

Comet B68 -> 32

Crafty 23.4 64-bit -> 23

Crazy Bishop 0052 -> 32

Critter 1.4 64-bit 6CPU -> 100

Daydreamer 1.75 64-bit -> 20

Deep Shredder 12 64-bit OA On 4CPU -> 100

Delfi 5.4 -> 16

Delphil 2.9f -> 310

Der Bringer 1.9 -> 32

Deuterium 10.01.27.213 -> 32

Deuterium 11.01.28.159 -> 21

Deuterium 12.01.30.1070 64-bit -> 307

Dirty 05Sep2012 64-bit -> 300

Dirty 23Mar2012 64-bit -> 10

Dirty 25Aug2011 64-bit -> 54

DiscoCheck 3.71 64-bit -> 314

Djinn 0.925x -> 32

Dorky 4.3 64-bit -> 32

Dragon 4.6 -> 31

E.T. Chess 13.01.08 -> 54

EXchess 6.02b 64-bit -> 32

EXchess 6.50b 64-bit -> 909

Elf 1.3.0 -> 68

Enigma 1.1.4 -> 68

Esc 1.16 -> 32

Exacto 0.d -> 646

Frenzee 3.5.19 64-bit -> 22

Fruit 2.1 -> 311

GNU Chess 5.07.173b 64-bit -> 54

Gaia 3.5 64-bit -> 32

Gandalf 6 -> 53

GarboChess 2.10 64-bit -> 32

GarboChess 2.20 64-bit -> 22

Gaviota 0.85.1 64-bit -> 313

Gibbon 2.57a 64-bit -> 32

Glass 1.9 64-bit -> 32

Gosu 0.16 -> 30

GreKo 9.7 64-bit -> 305

Green Light Chess 3.01.2.2 -> 31

Grizzly 1.40.1b -> 68

Hamsters 0.7.1 -> 22

Hermann 2.6 64-bit -> 54

Horizon 4.4 -> 61

Houdini 2.0c 64-bit 6CPU -> 100

Hussar 0.4 -> 32

IQ23.003 -> 779

Jonny 4.00 -> 22

KnightX 1.92 -> 32

Komodo 5 64-bit -> 100

Laurifer 1.0 -> 68

Leila 0.53h -> 32

Little Goliath Evolution 3.12 -> 31

Mephisto Gideon Professional -> 733

MiniMardi 1.3 -> 68

Mizar 3.0 -> 68

Movei 00.8.438 (10 10 10) -> 54

N2 0.4 64-bit -> 54

NanoSzachy 4.0 64-bit -> 308

Natwarlal 0.14 -> 63

Naum 2.0 32-bit -> 22

Naum 4.2 64-bit 4CPU -> 100

Needle 0.531 -> 68

Nejmet 3.07 -> 31

Patzer 3.80 -> 30

Petir 4.39 -> 54

Pharaon 3.5.1 -> 54

Philou 3.7 64-bit -> 31

Philou 3.71 64-bit -> 306

Piranha 0.5 -> 68

Plisk 0.2.7d 64-bit -> 29

Popochin 3.2 -> 32

ProDeo 1.81 -> 1244

Pseudo 0.7c -> 22

Pupsi2 0.09 -> 312

Quark 2.35 -> 32

Quazar 0.4 64-bit -> 309

Queen 4.03 -> 64

Rainman 0.7.5 -> 68

Ranita 2.4 -> 34

RedQueen 1.1.1 64-bit -> 247

Robin 0.983 -> 68

Rodent 0.15 64-bit -> 298

Rodin 4.0 -> 21

RomiChess P3L 64-bit -> 32

Rotor 0.6 -> 18

Rotor 0.7a -> 909

Ruffian 1.0.5 -> 52

Ruffian 2.1.0 -> 48

Rybka 4.1 64-bit 6CPU -> 100

SEE 0.6.9 -> 68

SOS 5.1 -> 54

Sage 3.53 -> 32

Scorpio 2.7 64-bit -> 22

Scorpio 2.75 64-bit -> 298

Simontacchi 1.81 -> 34

Simplex 0.9.8 64-bit -> 32

Sjakk 1.1.9 -> 32

Sloppy 0.2.2 64-bit -> 53

Slow Chess Blitz WV2.1 -> 54

SmarThink 0.17a -> 22

SmarThink 1.20 64-bit -> 22

Soldat 0.25b -> 68

Spike 1.4 Leiden 4CPU -> 100

Stockfish 2.3 64-bit 6CPU -> 800

Storm 0.6 -> 67

Strelka 5.1 64-bit -> 100

Sungorus 1.4 64-bit -> 32

TJchess 1.01 -> 32

TJchess 1.1 64-bit -> 32

Tao 5.6 -> 32

Terra 3.4 -> 32

The Baron 2.23 64-bit -> 54

Trace 1.37a -> 32

Ufim 8.02 -> 54

WildCat 8 -> 54

Yace 0.99.87 -> 32

Zappa 1.1 64-bit -> 52

Zotron 4.4.6 -> 67