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 for the next week includes:
Houdini 4 Tactical 64-bit 4CPU
BlackMamba 2.0 64-bit 4CPU
Stunning Trio 4CPU (tournament)
Houdini 4 Tactical 64-bit
Senpai 1.0 64-bit
Gaviota 1.0 64-bit
Arminius 2014-01-18 64-bit
Exacto 0.e 64-bit
Pedone 0.3 64-bit
Napoleon 1.4.0 64-bit
Vajolet 2.0 64-bit
Arasan 17.0 64-bit
The Tale Of Two Hitmen (1CPU tournament)
The Bobcat And The Tiger (1CPU tournament)
Realm Of The Chameleon (1CPU tournament)
46th Amateur Series Division 1 (1CPU tournament)
46th Amateur Division 2 (1CPU tournament)
Free Engines I (1CPU tournament)
Redressing The Balance 5 (1CPU tournament)