New engine releases & news H2 2022

[Gabor Szots]

The CT800 V1.44 is ready, should be good for 60 Elo: https://www.ct800.net/download.htm

• Improved mate search mode.
• Improved general performance.
• Improved pawn hash collision handling.
• Fine-tuned pruning and eval.
• Removed null move threat move.
• More late move reductions.

Good news, Ras. Has it really been a whole year since 1.43? Time flies.

[Damir]

Pikafish 2022-08-28
Thanks to the Author PikaCat-OuO PikaCat ssfgmfgsoke

Pikafish is a free, powerful UCI xiangqi engine derived from Stockfish. Pikafish is not a complete xiangqi program and requires a UCI-compatible graphical user interface (GUI) (e.g. VinXiangQi or BHGUI) in order to be used comfortably. Read the documentation for your GUI of choice for information about how to use Pikafish with it.

The Pikafish engine features the efficiently updatable neural network (NNUE) based evaluation for xiangqi, which is by far the strongest. The strongest network can be downloaded from our official website. The NNUE evaluation benefits from the vector intrinsics available on most CPUs (sse2, avx2, neon, or similar).

Download : https://github.com/PikaCat-OuO/Pikafish ... 2022-08-28

Homepage / Instructions : https://github.com/PikaCat-OuO/Pikafish

Pikafish-2022-08-28
use bloom filter for repetition detection

Unfortunately the engine seems buggy, shows no evals/output
Resigns the game in Fritz GUI with a message '' Engine Delivered No Move''
Maybe someone can get in touch with the author and tell him to fix the things mentioned..

[connor_mcmonigle]

Pikafish 2022-08-28
Thanks to the Author PikaCat-OuO PikaCat ssfgmfgsoke

Pikafish is a free, powerful UCI xiangqi engine derived from Stockfish. Pikafish is not a complete xiangqi program and requires a UCI-compatible graphical user interface (GUI) (e.g. VinXiangQi or BHGUI) in order to be used comfortably. Read the documentation for your GUI of choice for information about how to use Pikafish with it.

The Pikafish engine features the efficiently updatable neural network (NNUE) based evaluation for xiangqi, which is by far the strongest. The strongest network can be downloaded from our official website. The NNUE evaluation benefits from the vector intrinsics available on most CPUs (sse2, avx2, neon, or similar).

Download : https://github.com/PikaCat-OuO/Pikafish ... 2022-08-28

Homepage / Instructions : https://github.com/PikaCat-OuO/Pikafish

Pikafish-2022-08-28
use bloom filter for repetition detection

Unfortunately the engine seems buggy, shows no evals/output
Resigns the game in Fritz GUI with a message '' Engine Delivered No Move''
Maybe someone can get in touch with the author and tell him to fix the things mentioned..

https://en.wikipedia.org/wiki/Xiangqi

[FreemanZlat]

Uralochka3.38c

Links:
http://sdchess.ru/engines/Uralochka3.38c-win64.zip
http://sdchess.ru/engines/Uralochka3.38c-linux64.zip

[Guenther]

not yet mentioned in chronological order

Frozenight 5.0.0
https://github.com/MinusKelvin/frozenight

Eubos 2.14
https://github.com/cjbolt/EubosChess

Avalanche 1.2.0
https://github.com/SnowballSH/Avalanche

StockNemo 5.3.0.0 + 5.2.0.0
https://github.com/TheBlackPlague/StockNemo

ViridithasII 2.6.0
https://github.com/cosmobobak/virtue

[Sylwy]

Eggnog 4 - having NNOM Neural Network.

Author: Levi Gibson-USA

https://github.com/LeviGibson/eggnog-ch ... indows.zip

[Frank Quisinsky]

To Uralochka 3.38c NN

Again 35 Elo more is a lot!
Move average for draws is with 95 moves a bit to high ...
Maybe a contempt parameter is possible for one of the next versions?

Move average for draws is normaly = 85
In this group of engines (without contempt):

https://www.amateurschach.de/fling/fcp_ ... ecret.html
https://www.amateurschach.de/frank/fcp_ ... ecret.html (before with Uralochka 3.37c NN)
40 in 8, without contempt, without resign mode on 4.1Ghz and 512Mb hash with 5-pieces.

Not for Stockfish 290822 = move average draws = 105
Will be replaced soon.

Best
Frank

[Frank Quisinsky]

by Ipman:
Weiss 2.1 dev
https://ipmanchess.yolasite.com/compiles.php

A wait of this, looking each day on the GitHub site from the Weiss programmer!

Weiss is one of my favorits and unfortunately ... for older versions of Wasp the fearful opponent.
With +70 Elo I am very sure again the fearful opponent.
We vs. Wa ... an event for the evening!

A really great engine:
Strong in defends with many pieces on board, anytime very danger in attacking chess, great move-average "draw games", no technical problems, for the strength Weiss have amazingly few fast lost games ( and all in all ... better than balanced chess to all playing phases ... very nice computer chess from Norway)!

A very good day!
Weiss 2.1 dev for testing!

Thank you!!

Best
Frank

And to my last Uralochka 3.38c NN comment ...
Maybe +40 Elo to v3.37c NN

[silentshark]

Francesca 0.32 released. Minor increase in strength, I hope (+20 ELO?).

Available at www.silentshark.co.uk

More stuff in the readme.txt. Greetings all

[jmcd]

https://github.com/jonathanmcdermid/Clo ... Clovisv1.5

Clovis 1.5 release