Maia chess models (maia-1100 … maia-1900): human-like move prediction by the CSSLab
(University of Toronto, Cornell, Microsoft Research). https://github.com/CSSLab/maia-chess
License: GNU General Public License v3.0 (see https://www.gnu.org/licenses/gpl-3.0.txt).

What we ship and how to rebuild it:
  weights/maia-XXXX.pb.gz   the original, unmodified Leela-format weights from the repository above
  maia-XXXX.onnx            the same networks converted to ONNX, with no other change:
                              lc0 leela2onnx --input=weights/maia-1500.pb.gz --output=maia-1500.onnx
                            (Lc0 v0.32.1, https://github.com/LeelaChessZero/lc0, GPL-3.0)
Input: classic 112-plane Leela encoding. Output: 1858-move policy + win/draw/loss.
The encoder that feeds these networks is in src/engine/maia.ts of the chesstrainer source archive.