CCRL 40/15, 40/2 and FRC lists updated (26th June 2021)

[Graham Banks]

The latest CCRL Rating Lists and Statistics are available for viewing from the following links:
http://ccrl.chessdom.com/ccrl/4040 (40/15)
http://ccrl.chessdom.com/ccrl/404 (40/2)
http://ccrl.chessdom.com/ccrl/404FRC (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.



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 Chessdom.com 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

[mehmet123]

Great success for SlowChess Blitz.

If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

[Madeleine Birchfield]

Great success for SlowChess Blitz.

If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

If we don't consider NN chess engines and controversial chess engines then first would be Xiphos, second would be Booot, and third would be rofchade.

[jonkr]

Thanks for testing Slow 2.6,
I see the 4-cpu version near the top in 40/15, and I see single CPU version did equally well in the Blitz list. FRC well... at least Slow is making progress again there.

Rating will probably still bounce around more, but 2.6 has exceeded my expectations in terms of consistently reaching the top end of the range in all the rating lists so far.

Yes neural nets definitely main part of increase in strength after Slow 2.3. Version 2.6 has 12 different neural nets and I plan to try adding more. SF11 strongest classical engine I think, not sure if Slow will catch up, the very carefully tuned and tested search of SF gives it a big search advantage.

[mehmet123]

Great success for SlowChess Blitz.
If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

If we don't consider NN chess engines and controversial chess engines then first would be Xiphos, second would be Booot, and third would be rofchade.

Stockfish , Komodo, Ethereal and Fire are more stronger than these chess engines without NNUE net.

[Madeleine Birchfield]

Great success for SlowChess Blitz.
If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

If we don't consider NN chess engines and controversial chess engines then first would be Xiphos, second would be Booot, and third would be rofchade.

Stockfish , Komodo, Ethereal and Fire are more stronger than these chess engines without NNUE net.

Current Stockfish, Komodo, Ethereal, and Slowchess all use NNs so do not count.

If we restrict ourselves to last version that does not use NNs, then Ethereal is still the third strongest engine, as Slowchess has been using NNs since version 2.4, and Slowchess 2.3 is weaker than Ethereal 12.50, the last version of Ethereal without NNs.

And Fire is a controversial engine and so wouldn't count in the first place.

[Madeleine Birchfield]

If we don't consider GPU engines and controversial engine Fat Fritz, then Slowchess Blitz is in third place.

[mehmet123]

Great success for SlowChess Blitz.

If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

Actually ı mean gpu based engines like Lc0 and Stoofvlees not chess engines using nnue network. Houdini is the most powerful alpha-beta chess engine that don' t use nnue network.

[lkaufman]

Great success for SlowChess Blitz.

If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

Actually ı mean gpu based engines like Lc0 and Stoofvlees not chess engines using nnue network. Houdini is the most powerful alpha-beta chess engine that don' t use nnue network.

Stockfish 11 (or a later dev version or derivative) would be the strongest alpha-beta chess engine not using NNUE, not Houdini, which is a derivative of an earlier Stockfish (and Komodo).

[mehmet123]

Great success for SlowChess Blitz.

If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place.

Actually ı mean gpu based engines like Lc0 and Stoofvlees not chess engines using nnue network. Houdini is the most powerful alpha-beta chess engine that don' t use nnue network.

Stockfish 11 (or a later dev version or derivative) would be the strongest alpha-beta chess engine not using NNUE, not Houdini, which is a derivative of an earlier Stockfish (and Komodo).

I mean chess engines which no versions uses NNUE network.
Latest version of Stockfish that doesn't use NNUE networks is Stockfish 310720. I also did some tests with this engine.
http://talkchess.com/forum3/viewtopic.p ... &start=190

Yes we know that Houdini uses some Stockfish code but I don't think these Stockfish codes give Houdini as much elo points as exaggerated.