Maia 1500 Lc0 browser runtime notice

Date of provenance note: 2026-07-03

This directory redistributes a browser Worker wrapper, a public zerofish
Lc0/Stockfish WASM build, and Maia 1500 weights.

No private Inchess source code is included.

Runtime package:
- @lichess-org/zerofish@0.0.40
- Repository: https://github.com/lichess-org/zerofish
- Commit: c2934bb579d8a167ae99297584b5ba15e3583664
- License: AGPL-3.0-or-later

Lc0:
- Repository: https://github.com/LeelaChessZero/lc0
- Runtime source tag used by zerofish: v0.29.0
- Runtime source commit: afdd67c2186f1f29893d495750661a871f7aa9ac
- The browser engine reports: Lc0 v0.29.0+zerofish
- Latest stable checked separately: v0.32.1, commit fd71a2d921b689c5f479d3227c3806c8e272d9c5
- Latest stable checked at: 2026-07-03

Maia:
- Repository: https://github.com/CSSLab/maia-chess
- Commit checked: 749204cf5979ce7f8b0412e804a4ee7c83c49ff8
- Weights file: maia_weights/maia-1500.pb.gz
- Weights URL: https://raw.githubusercontent.com/CSSLab/maia-chess/749204cf5979ce7f8b0412e804a4ee7c83c49ff8/maia_weights/maia-1500.pb.gz
- Weights git blob SHA: 651551e2603c3efba9c6ded3b87da302c40722fb
- Weights SHA-256: 35ab6f20421d59e1df3b17c5a5016947af4c6761368ef84044a9a9c7619a9a00
- Weights size: 1258199 bytes compressed, 1738564 bytes decompressed
- License: GPL-3.0

Stockfish:
- The zerofish combined WASM build includes Stockfish source code.
- Repository: https://github.com/official-stockfish/Stockfish
- Ref used by zerofish build script: SF_classical
- Commit: 9587eeeb5ed29f834d4f956b92e0e732877c47a7