theoria 0.3.1

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FireDragon761138
Posts: 87
Joined: Sun Dec 28, 2025 7:25 am
Full name: Aaron Munn

theoria 0.3.1

Post by FireDragon761138 »

https://www.theoriachess.org/download/

We made a release with some minor bug fixes and improvements to Theoria. I used Claude Fable to analyze the code. The newer versions of Theoria use ply-to-ply stability to judge when to stop searching. Stability termination is the main code difference from Stockfish 16, but it also correctly evaluates odds games now as well.

We're developing a web app GUI to go with it, using natural language commentary from a language model, but it isn't yet public and is still being playtested.
thomasahle
Posts: 95
Joined: Thu Feb 27, 2014 8:19 pm

Re: theoria 0.3.1

Post by thomasahle »

Who are "we" in this context? You and Claude?

> Instead of learning from iteration on Stockfish's evaluation, Theoria's network learns positional understanding from Lc0's self-play data.

This is also how Stockfish does it, in case you didn't know.
Ciekce
Posts: 222
Joined: Sun Oct 30, 2022 5:26 pm
Full name: Conor Anstey

Re: theoria 0.3.1

Post by Ciekce »

thomasahle wrote: Tue Aug 11, 2026 11:01 pm This is also how Stockfish does it, in case you didn't know.
he's been told many times, he just doesn't care about such petty things as reality
https://github.com/Ciekce/Stormphrax

WYOFE (Write Your Own Engine)