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, Andres and Matt).
- Jay Honnold for both the tournament viewer and for hosting Graham's live broadcasts.
- Jonathan Gilchrist for the utility CCRL notifier, which alerts engine authors when their engine is playing in a live broadcast.
- 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.
- all engine authors. Without you, CCRL wouldn't exist.
40/15 and 15m+10s testing this week will include (thanks to Graham, Andres and Shaun. 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).
121st Amateur Series Division 7 Tournament (finishing Monday) Web based viewer http://ccrl.live/16071
121st Amateur Series Division 8 Tournament (finishing Friday) Web based viewer http://ccrl.live/16070
121st Amateur Series Division 9 Tournament (continuing) Web based viewer http://ccrl.live/16064
121st Amateur Series Division 10 Tournament (starting Monday) Web based viewer http://ccrl.live/16069
121st Amateur Series Division 11 Tournament (starting Friday) Live broadcast details to be advised
Rescue Attempts Tournament (finishing Tuesday) Web based viewer http://ccrl.live/16073
New Tournament (starting Tuesday) Live broadcast details to be advised
Heimdall 1.4.2 64-bit 4CPU Gauntlet (continuing) Web based viewer http://ccrl.live/16061
Astra 6.1.1 64-bit 4CPU Gauntlet (continuing) Web based viewer http://ccrl.live/16062
Uralochka 3.42a 64-bit 4CPU Gauntlet (finishing Monday) Web based viewer http://ccrl.live/16063
Calvin 6.1.1 4CPU Gauntlet (starting Monday) Web based viewer http://ccrl.live/16063
Torch v3 64-bit Gauntlet (continuing)
Lunar 0.4.0 64-bit (continuing)
Eubos 4.2 64-bit Gauntlet (continuing)
Zangdar 5.00.02 64-bit Gauntlet (finishing Wednesday)
Heimdall 1.4.2 64-bit Gauntlet (finishing Wednesday)
Prophet 5.1 64-bit Gauntlet (starting Wednesday)
Bagatur 5.3 64-bit Gauntlet (starting Wednesday)
Various 1CPU Gauntlets being run by Andres (usually 3-4 per week)
2m+1s testing since the last update report has included (thanks to Gabor):
EnkoChess 290818
Chers 0.7.1 64-bit
Alpaca 0.2.6 64-bit
Lynx 1.11.0 64-bit
EveAnn 3.5 64-bit
PZChessBot 4.0 64-bit
Ynode 0215 64-bit
Anubis 3.06 64-bit
Princhess 0.21.0 64-bit
Petrel 2.1 64-bit
VanillaChess 2.6g
FRC 40/2 testing since the last update report has included (thanks to Basti):
Princhess 0.21.0 64-bit (in progress)
Chess324 (thanks to Basti)
On hold for now.
DFRC 40/2 testing (thanks to Basti and Matt):
Code: Select all
CCRL DFRC Rating List - All engines, best versions only
5773 games played by 26 programs, run by 3 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: 30 seconds + 0.3 second
Computed on October 12, 2025 with Bayeselo based on 5'773 games
Tested by CCRL team, 2005-2025, http://ccrl.chessdom.com/ccrl/DFRC/
Rank Engine ELO + - Score AvOp Games
1 Stockfish 17.1 3797 +17 -17 68.6% -156.8 890
2 Torch v3 3786 +17 -17 64.6% -120.1 1097
3 Stormphrax 7.0.7 3744 +16 -16 60.7% -91.0 901
4 Berserk 20250321 3733 +21 -21 66.2% -137.4 552
5 Caissa 1.22 3710 +18 -18 56.1% -56.0 788
6 Viridithas 18.0.0-dev 3680 +18 -18 58.6% -75.7 672
7-8 Dragon 3.3 by Komodo 3669 +16 -16 50.6% -13.9 914
7-8 Horsie 1.1 3669 +18 -18 56.3% -58.3 680
9 PlentyChess 6.0.2 3668 +21 -21 57.2% -67.0 552
10 pawnocchio 1.7.2-dev 3651 +21 -21 55.3% -48.6 552
11 Calvin 6.1.1 3500 +21 -21 34.2% +115.0 552
12 Heimdall 1.4.0-beta-301171 3481 +21 -21 32.0% +135.6 552
13 Prelude dev (7e63da3) 3323 +26 -26 14.9% +306.8 552
14 Stash 37.0 3255 +26 -26 9.3% +391.6 680