Chess engines that are tuned/trained to chess960

[Madeleine Birchfield]

The two top engines, Stockfish and Leela, do not use any 960 games in their tuning/training processes, but both Ethereal and Dragon by Komodo Chess are tuned or trained to chess960 (which regular chess simply happens to be one of the 960 possible starting positions). Are there any other engines that do this?

[Joerg Oster]

The two top engines, Stockfish and Leela, do not use any 960 games in their tuning/training processes, but both Ethereal and Dragon by Komodo Chess are tuned or trained to chess960 (which regular chess simply happens to be one of the 960 possible starting positions). Are there any other engines that do this?

Not fully correct.
Some terms of the handcrafted eval in Stockfish have been tuned with FRC games.
For example https://github.com/official-stockfish/S ... 409fdc1d9c but also some other values, iirc.

And I'm pretty sure several other engines did this, as well!

[mar]

AFAIK Richard Vida used Chess960 when developing Critter

[Modern Times]

Robert used chess960 as part of his procedures when testing Houdini updates.

[AndrewGrant]

I've shared my datasets with a handful of people (most of the guys using OpenBench). Engines like Weiss, which do not know how to play FRC, are actually trained on FRC data as well with gains.