New engine releases & news H1 2025

[Daniel Anulliero]

Hi

New Isa release :

https://github.com/Dany1962/Isa-NNUE-re ... sa_4_4.zip

Please read the read me file for details

[op12no2]

Lozza 5.1: https://github.com/op12no2/lozza/releases

[Gabor Szots]

Lozza 5.1: https://github.com/op12no2/lozza/releases

Hi Colin,

The engine introduces itself as Lozza 6.

[op12no2]

Ah yes, I forgot to tweak the UCI command. It is 5.1 though. Apologies. Lozza 6 is taking a long time b/c I'm growing a 'zero' net, so I thought I'd do an interim release.

[op12no2]

I've updated the release to fix the version string. No performative changes.

https://github.com/op12no2/lozza/releases/tag/5.1

[Gabor Szots]

New engine: Eleanor (version 1.0)

Mark Kasa (Hungary)
https://github.com/rektdie/Eleanor

[OliverBr]

Now it's 5.11.3

Binaries can also been download at GitHuB: https://github.com/olithink/OliThink

Now 5.11.4 released. Feature:
10+ ELO
10- Lines of Code

By this logic, removing the entire code should gain 1320 ELO.

[schahmatist]

I see that newer version of Uralochka is available (the one that will be playing in TCEC CUP):

Uralochka 3.42 dev10:
https://gitlab.com/freemanzlat/uralochka3/-/branches

Download Source code:
https://gitlab.com/freemanzlat/uralochk ... 3-main.zip

Download executables:
https://gitlab.com/freemanzlat/uralochk ... -windows64

(Linux64 is also available)

[OliverBr]

Now it's 5.11.3

Binaries can also been download at GitHuB: https://github.com/olithink/OliThink

Now 5.11.4 released. Feature:
10+ ELO
10- Lines of Code

By this logic, removing the entire code should gain 1320 ELO.

Not 5.11.5 has been released. Feature: A denser "rays-Array" for move generation and evaluation.
8+ELO
3-Lines of Code

By this logic, removing the entire coe should gain 3000 ELO.
Seriously, in CPUs with smaller Level 1 Cache this gain could be even more.

[Lunar]

Lunar v0.2.0

https://github.com/Synthetica9/lunar/releases/tag/0.2.0

May be a new name to you, this is the first release I'm actually publicizing. Relatively strong (~3200 Elo) engine written in Rust, that I've been working on off and on for some time now. Had it's OTB debut in last CSVN programmer tournament, though there it was v0.1.0, which was about 600 Elo weaker, mainly due to the abysmal HCE (now using NNUE).