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 (26th June 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, Josh and Dietrich). 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):

86th Amateur Series Division 5 (finishing today 16053)
86th Amateur Series Division 6 (continuing 16002)
86th Amateur Series Division 7 (continuing 16001)
86th Amateur Series Division 8 (starting today 16053)
Delocto 200419 64-bit Gauntlet (continuing 16063)
Nalwald 1.9 64-bit Gauntlet (continuing 16064)
CT800 1.42 64-bit Gauntlet (finishing today 16066)
Galjoen 0.40.1 64-bit Gauntlet (starting today 16066)
Clover 2.3.1 64-bit Gauntlet (finishing Thursday 16091)
SlowChess Blitz 2.6 64-bit Gauntlet (continuing 16091)
MadChess 3.0 64-bit Gauntlet (continuing 16092)
Danasah 8.8 64-bit Gauntlet (finishing Thursday 16093)
Arasan 22.3 64-bit Gauntlet (starting Thursday 16093)
Invictus r382 64-bit Gauntlet (Shredder GUI - no broadcast - continuing)
Marvin 5.0.0 64-bit 4CPU and Winter 0.9 64-bit 4CPU Gauntlet (finishing Wednesday 16083)
Clover 2.3.1 64-bit 4CPU and Combusken 1.4.0 64-bit 4CPU Gauntlet (starting Wednesday 16083)
Berserk 4.2.0 64-bit 4CPU and Seer 2.0.1 64-bit 4CPU Gauntlet (continuing 16084)
Various 4CPU Matches (being run by Ray)

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

Joanna 2002 1.06
Ethereal 13.00 (NNUE) 64-bit
Chai 2.5.5 64-bit
DoctorB 1.2.1 64-bit
SlowChess Blitz 2.6 64-bit
Bit-Genie 5 64-bit

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

Chiron 5 64-bit
SlowChess Blitz 2.6 64-bit