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 often updated separately to each other. The FRC list is only 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.


40/40 testing during the coming week will include (live broadcast TLCV ports noted)

Komodo 7a 64-bit 4CPU Gauntlet (continuing 16083)
Gull 3 64-bit 4CPU Gauntlet (interrupting 16084)
Stockfish 5 64-bit 4CPU Gauntlet (starting 16084)
Rodent 1.4 64-bit Gauntlet (finishing 16066)
Stockfish 5 64-bit Gauntlet (starting 16064)
Komodo 7a 64-bit Gauntlet (continuing 16076)
Cheese 1.6 64-bit Gauntlet (continuing 16065)
Fizbo 1.1 64-bit Gauntlet (continuing 16063)
EXchess 7.26b 64-bit Gauntlet (finishing 16073)
Texel 1.04 64-bit Gauntlet (starting 16075)
Ares 1.005 64-bit Gauntlet (continuing 16074)
47th Amateur Series Division 3 (continuing 16002)
47th Amateur Series Division 4 (continuing 16053)
The Bubble Trap (tournament continuing 16001)
Free Engines III (tournament)

40/4 testing during the coming week will include

Stockfish 5 64-bit 4CPU
Stockfish 5 64-bit
Komodo 7a 64-bit 4CPU
Komodo 7a 64-bit
Pedone 0.4 64-bit