The latest CCRL Rating Lists and Statistics are available for viewing from the following links: (40/15) (40/2) (FRC 40/2)

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.

CCRL 40/15, 40/2 and FRC lists updated (16th May 2021) CCRL-lists

Our 40 moves in 15 minutes repeating and 40 moves in 2 minutes repeating are both adjusted to the Intel i7 4770k (3.5GHz) using the Stockfish 10 64-bit benchmark.

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 inclusion or exclusion of engines in our lists should not be taken as our group making a statement about their legality or status. Where there is controversy, it is usually mentioned in the engine notes.

Thanks to all of our currently active testers (Graham, Ray, Gabor, Sergio and Josh). Thanks also to for hosting our website.

40/15 testing this week that I'm aware of will include (with live broadcast port for TLCV noted where applicable):

Adventures In The Clover Patch Tournament (finishing today 16001)
Devel In The Detail Tournament (starting today 16001)
Cucumber Salad Tournament (continuing 16002)
Pacifying The Warmonger Tournament (finishing Tuesday 16053)
New Tournament (starting Tuesday 16053)
tomitankChess 5.0 64-bit Gauntlet (continuing 16064)
Minic 3.04 64-bit Gauntlet (continuing 16065)
Nawito 2013 64-bit Gauntlet (continuing 16066)
Dragon by Komodo 2 64-bit Gauntlet (continuing 16091)
RubiChess 2.1 64-bit Gauntlet (finishing today 16092)
86th Amateur Series Division 1 (starting today 16092)
Pedone 3.1 64-bit Gauntlet (continuing 16093)
NirvanaChess 2.5 64-bit 4CPU Gauntlet (finishing Monday 16083)
Gap-filling 4CPU Matches (starting Monday 16083)
RubiChess 2.1 64-bit 4CPU Gauntlet (finishing Monday 16084)
Minic 3.06 64-bit 4CPU Gauntlet (starting Monday 16084)
Winter 0.9 64-bit 4CPU Gauntlet (being run by Josh with help from Graham and Ray)
Pedone 3.1 64-bit 4CPU Gauntlet (being run by Josh with help from Graham and Ray)
Marvin 5.0.0 64-bit 4CPU Gauntlet (being run by Josh with help from Graham and Ray)
Igel 3.0.5 64-bit 4CPU Matches (being run by Ray)

40/2 testing since the last update report has included (thanks to Gabor and Sergio):

Nalwald 1.8.1 64-bit
Dragon by Komodo 2 8CPU
Stash 30.0 64-bit
Igel 3.0.5 64-bit
Seer 2.0.0 64-bit
Invictus r323 64-bit
Marvin 5.0.0 64-bit 4CPU
MinimalChess 0.4.1 64-bit
Berserk 4.1.0 64-bit

40/2 FRC testing since the last update report has included (thanks to Ray):

Nil. Are there any engines that we're missing?