# Third-Party Notices

Runtime libraries are stored locally in `vendor/`; the game makes no CDN requests. GSAP 3.12.2 is included under GreenSock's Standard No Charge License. Chess.js 0.10.3 is included under the BSD 2-Clause License. The Stockfish worker remains local in `stockfish/`.

Environment lighting: *Abandoned Hall 01* by Poly Haven, stored locally at `assets/environment/abandoned_hall_01_4k.exr`. License: CC0 1.0 Universal (Public Domain Dedication). Source: https://polyhaven.com/a/abandoned_hall_01

Cellblock room: the concrete walls, barred openings, iron framing, fixture, and lighting are original procedural Three.js geometry created for Cheesborough Carceral Chess. The linked Sketchfab *Prison Cell* model was not downloaded or incorporated because a lawful local download was not available during this integration.

Voice: optional AI commentary uses the site's Azure Speech endpoint only when the administrator configures an Azure Speech key on the server. No voice recording or player personal data is transmitted by this feature.

Based on 3D Chess Game by Abhin M (mrabhin03), adapted for Cheesborough Carceral Collections; MIT License.

Seated AI avatar source: *Posed Background Characters* by Quaternius, using the bundled `Male_Sitting.obj` and `Female_Sitting.obj` assets. License: CC0 1.0 Universal (Public Domain Dedication). Source license record: `assets/avatars/source/posed-background-characters/Posed Background Characters by @Quaternius/License.txt`. Attribution requested by the source: "Background characters by Quaternius" — https://www.patreon.com/quaternius