The latest CCRL update (5th April 2025)

[Graham Banks]

The latest CCRL Rating Lists and Statistics (5th April) 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).

Swiss Tournament 2025-II (finishing Wednesday) Web based viewer http://ccrl.live/16068
Swiss Tournament 2025-III (finishing Wednesday) Web based viewer http://ccrl.live/16073
Swiss Tournament 2025-IV (finishing Friday) Web based viewer http://ccrl.live/16067
Swiss Tournament 2025-V (finishing Saturday) Web based viewer http://ccrl.live/16064
Swiss Tournament 2025-VI (starting Saturday) Broadcast link to be advised.
117th Amateur Series Division 1 (starting Wednesday) Broadcast link to be advised.
117th Amateur Series Division 2 (starting Wednesday) Broadcast link to be advised.
117th Amateur Series Division 3 (starting Friday) Broadcast link to be advised.

Alexandris 8.0.0 64-bit 4CPU Gauntlet (finishing Wednesday) Web based viewer http://ccrl.live/16061
Integral v7 64-bit 4CPU Gauntlet (finishing Monday) Web based viewer http://ccrl.live/16062
PlentyChess 5.0.0 64-bit 4CPU Gauntlet (finishing Wednesday) Web based viewer http://ccrl.live/16063
Quanticade Fenrir 1.0 64-bit 4CPU Gauntlet (starting Wednesday) Web based viewer http://ccrl.live/16061
Stockfish 17.1 64-bit 4CPU Gauntlet (starting Monday) Web based viewer http://ccrl.live/16062
Booot 7.4 64-bit 4CPU Gauntlet (starting Wednesday) Web based viewer http://ccrl.live/16063

PlentyChess 5.0.0 64-bit Gauntlet (continuing)
Stockfish 17.1 64-bit Gauntlet (continuing)
Astra 5.1 64-bit Gauntlet (continuing)
Heimdall 1.3.2 64-bit Gauntlet (continuing)
Alexandria 8.0.0 64-bit Gauntlet (finishing Tuesday)
Calvin 6.0.0 64-bit Gauntlet (starting Tuesday)
Various 1CPU and 4CPU Gauntlets being run by Andres

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

Chessatron 1.0 64-bit
Pawnocchio 1.3.1415 64-bit
Dumb 2.3 64-bit
Cadie 2.1 64-bit
Lambergar 1.1 64-bit
Viridithas 16.0.0 64-bit 8CPU
Alexandria 8.0.0 64-bit 8CPU
Integral 7 64-bit 8CPU
PlentyChess 5.0.0 64-bit 8CPU
Round Robin 64-bit 8CPU
Shallow Guess 0.1.0 64-bit
Eubos 3.9 64-bit
Seawall 20250322 64-bit
MadChess 3.3 64-bit

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

None this week. (Basti is a student and has computer issues. He is saving some money to get his computer fixed)

Chess324 (thanks to Basti)

None this week. (Basti is a student and has computer issues. He is saving some money to get his computer fixed)