New engine releases & news H1 2026

[Frank Quisinsky]

Raphael 3.1
https://github.com/Orbital-Web/Raphael
by Rei Meguro, Japan / USA

[Frank Quisinsky]

Aconcagua 5.1.0
https://github.com/gabtar/aconcagua
by Gabriel Tarifa, Argentina

[Frank Quisinsky]

Kobra 2.1
https://github.com/jasper-sinclair/kobra
by Jasper Sinclair, USA

[Frank Quisinsky]

Hobbes 1.0
https://github.com/kelseyde/hobbes-chess-engine
by Dan Kelsey, Netherlands

Note:
Author from Calvin (JAVA engine).
This engine is probably very strong, could be one of TOP-20!

[ChickenMan4236]

New version of Zeppelin

Zeppelin v1.3.0
Improvements in search extensions and stronger NNUE

http://zeppelin.bot.nu/
https://github.com/jszczerbinsky/zeppel ... tag/v1.3.0

[Sylwy]

Hobbes 1.0
https://github.com/kelseyde/hobbes-chess-engine
by Dan Kelsey, Netherlands

Note:
Author from Calvin (JAVA engine).
This engine is probably very strong, could be one of TOP-20!

viewtopic.php?p=990243#p990243

[Frank Quisinsky]

Jackal 2.0.0 (MCTS engine, very strong ... +380 Elo to the last release)
https://github.com/TomaszJaworski777/Jackal
by Tomasz Jaworski (Poland)

[Gabor Szots]

Jackal 2.0.0 (MCTS engine, very strong ... +380 Elo to the last release)
https://github.com/TomaszJaworski777/Jackal
by Tomasz Jaworski (Poland)

I'm scared of its size of more than 1 GB.