The latest CCRL update (1st March 2025)

[Graham Banks]

The latest CCRL Rating Lists and Statistics (1st March) are available for viewing from the following links:

www.computerchess.org.uk/ccrl/4040 (40/15 and 15m+10s)
www.computerchess.org.uk/ccrl/404 (BLITZ 2m+1s)
www.computerchess.org.uk/ccrl/402.archive/ (BLITZ 40/2 Archive)
www.computerchess.org.uk/ccrl/404FRC (FRC 40/2)
www.computerchess.org.uk/ccrl/Chess324/ (Chess324)

Our 40 moves in 15 minutes repeating (including 15 minutes with 10 second increments) and 2 minutes with 1 second increments are both adjusted to the Intel i7 4770k (3.5GHz) using the Stockfish 10 64-bit benchmark.
All of our current testing uses AVX2 compiles where available.

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:
- Kirill Kryukov who wrote the scripts that produce all CCRL data, with recent processing speed-ups from Martin Sedlak (Cheng author).
- all of our currently active testers (Graham, Gabor, Basti, Shaun and Andres).
- Ray who ran the time-consuming weekly updates for a very long time, a task now shared among three testers.
- Jay Honnold for both the tournament viewer and for hosting Graham's live broadcasts.
- all engine authors. Without you, CCRL wouldn't exist.
- Anton Mihailov (Chessdom.com) for hosting our rating lists for many years.
- Sam Roelants (Simbelmyne author) who has taken over the hosting of our rating lists.

40/15 and 15m+10s testing this week will include (thanks to Graham and Andres. Live broadcast given where applicable):

Live broadcasts of some Gauntlets can be made available upon request.
(Web based viewer courtesy of Jay Honnold, with additions by Lana (Princhess), Jost Triller (Nalwald) and Finn Eggers (Koivisto).

116th Amateur Series Division 1 Tournament (continuing) Web based viewer http://ccrl.live/16069
116th Amateur Series Division 2 Tournament (continuing) Web based viewer http://ccrl.live/16064
116th Amateur Series Division 3 Tournament (continuing) Web based viewer http://ccrl.live/16071

Igel 3.6.0 64-bit 4CPU Gauntlet (on hold due to 16CPU tournament) Web based viewer http://ccrl.live/16061
Integral v7 64-bit 4CPU Gauntlet (on hold due to 16CPU tournament) Web based viewer http://ccrl.live/16062
Obsidian 15.0 64-bit 4CPU Gauntlet (on hold due to 16CPU tournament) Web based viewer http://ccrl.live/16063

Viridithas 16.0.0 64-bit Gauntlet (continuing)
Integral v7 64-bit Gauntlet (continuing)
Various 1CPU and 4CPU Gauntlets being run by Andres

2m+1s testing since the last update report has included (thanks to Gabor):

Integral 7.0.0 64-bit
Sentinel 2.0 64-bit
EveAnn 3.0 64-bit
Colossus 2025a 64-bit
HIARCS 15.4 64-bit
Yakka 1.2 64-bit
Emerald 0.1.1 64-bit
Zevra 2.6 64-bit
Homura 64-bit
Lozza 5 64-bit

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

None this week.

Chess324 (thanks to Basti)

Lizard 11.2 64-bit (completed)