New chess Engines clones and News 2021

[AlexChess]

CorChess 2.0 NNUE is a strong Stockfish derivate GPLv3 compliant compiled by Ilvec, ELO 3700.

The aim is to fine tuning the engine to offer the best analysis to correspondence chess players.

https://github.com/IIvec/Stockfish/tree/corchess

This is a graphic to show optimizations from long times games, given by Ilvec

I.IVEC SITE: https://chess.ultimaiq.net/stockfish.html

[AlexChess]

NOTICE FOR ALL TROLLS ON MY OWN TOPICS:

Just discovered the meaning of "Add to foe" on Control Panel!

So I report unwanted comments to moderators AND I add them to my IGNORE list. I don't even read next boring comments



Best regards, Alex

[Guenther]

CorChess 2.0 NNUE is a strong Stockfish derivate GPLv3 compliant compiled by Ilvec, ELO 3700.

The aim is to fine tuning the engine to offer the best analysis to correspondence chess players.

https://github.com/IIvec/Stockfish/tree/corchess

This is a graphic to show optimizations from long times games, given by Ilvec

I.IVEC SITE: https://chess.ultimaiq.net/stockfish.html

I just looked up the 'origin' of this graph now and it is only a 'marketing' wishful thinking.
Actually there is not a single result, which shows CorChess would be better than SF.
It just is worse in a lot of faster tcs and due to a simple extrapolation of the graph it 'looks as' if it could be better at very slow tcs, but that is
a hopeful myth not based on anything real. (just that anything slightly worse will always play better with more time due to avoiding more errors)

From the CorChess site itself (reformatted for better visibility + added values in last row from intermediate result for all draws):

Code: Select all

Regression tests between CorChess 2 and Stockfish 220821 (Ryzen 7 3700X - 1 core)
Hash      Time control in seconds  #games  Result W-L-D                       Elo gain (±2)  Draw rate
  1 MB    0.5+0.005                80000   12699-34076-33225                  -95.15          41.5%
  8 MB    5+0.05                   25000     1293-3596-20111                  -32.1           80.4%
 64 MB    50+0.5                    8000         98-244-7658                   -6.34          95.7%
512 MB    500+5                     2500          10-18-2472                   -1.11          98.9%
900 MB    5000+50                    800             0-0-412 (in progress...)   0.00         100.0%

Conclusion: There is no strict proof, but there is a hope that CorChess 2 is better on long time controls.

[Sylwy]

For your Encyclopedia of SF clones and derivatives.

[AlexChess]

For your Encyclopedia of SF clones and derivatives.

Thank you Sylwy. I'm happy that you also appreciate SF derivatives. They are an insteresting "source" of ideas also for the Stockfish Team, experimenting unofficial patches and fine tuning the code in alternative ways. PS: Unofficial Eman 7.50 is back and it's strong! Just ended my test and about to publish updated Superblitz results.

Best regards, Alex

[Jjaw]

Please stop posting chess engines that everyone is aware of. You are doing nothing original & wasting server resources.

[Sylwy]

Please stop posting chess engines that everyone is aware of. You are doing nothing original & wasting server resources.

WOW !
You are right !
Add in: Stockfish-Fat Fritz-Dragon-Koivisto-Berserk-RubiChess-SlowChess Blitz & co. Any computer chess enthusiast knows them. Some have long (and repeated) topics....................server resources..........offff !
Even your post is repeated..........server resources.....
Well , I posted the above two engines for logos. Plus they are new versions (BrainLearn 14.2-5 days ago; Raubfisch X47d2b -around 10 days ago).
Thank you !

[Sylwy]

Extremely desolate, but I have two news on this topic:

1.-a new version has just appeared-SugaR AI 2.50;
2.-this version entered my Stars Tournament.
The image I post is small (to save resources ....... I apologize in all directions)!



============
NR: I even gave up posting pictures and diagrams in the Tournaments and Matches section ........ I hope in the next decades to recover the waste of resources made so far .......

For those interested, I am posting a small excerpt (also out of a desire to save resources) from the current diagram of my tournament:

[AlexChess]

Extremely desolate, but I have two news on this topic:

1.-a new version has just appeared-SugaR AI 2.50;
2.-this version entered my Stars Tournament.
The image I post is small (to save resources ....... I apologize in all directions)!



============
NR: I even gave up posting pictures and diagrams in the Tournaments and Matches section ........ I hope in the next decades to recover the waste of resources made so far .......

For those interested, I am posting a small excerpt (also out of a desire to save resources) from the current diagram of my tournament:

Extremely happy

You are always welcome here!

I'm about to test it too, and Omar Khalid (Eman) that is now collaborating with Marco Zerbinati to the development is a sure booster!

Also Berserk 7 NN is very strong (2550 Elo range until now. +100 Elo from Berserk 6!)

[Rubinus]

The Clone Tournament is about as important as a Chessmaster setup competition. When it's run against another program, the results are then pretty much the same, so lottery initiation. And why stockfish avx when everything else you have is bmi? Wouldn't Stockfish bmi run slightly faster than avx there as well?