# Notices

## Third-party artwork

### Chess piece artwork

- **What**: the twelve Staunton-style chess piece SVGs embedded in `client.js`
  (six pieces, light and dark).
- **Where from**: the Sashité chess asset set —
  <https://sashite.dev/assets/chess/> (retrieved 2026-10-15).
- **Statement on that page**: *"Free, **public domain** SVG assets for Chess."*
  The assets page introduces them as the exact sets the Sashité play apps ship.
- **What was changed**: nothing about the drawings. Each piece's `<path>`
  elements and their own `fill` values were extracted, in document order, into
  the `PIECE_ART` table in `tools/piece-art.js`; the original files are kept
  verbatim under `pieces/`. The only change is the container — one `.svg` per
  piece becomes one table — plus the surrounding viewBox, which is the source's
  own `0 0 4096 4096`.
- **How to reproduce or re-fetch**: `tools/fetch-pieces.mjs` downloads the set and
  regenerates `tools/piece-art.js`. Nothing is typed in by hand.
- **Caveat, stated plainly**: the Sashité *site footer* carries a blanket
  "All rights reserved" line for the site itself, while the assets page
  explicitly dedicates these SVG assets to the public domain. That is the
  publisher's own declaration about these files, and it is recorded here so the
  decision is auditable rather than assumed. If a stricter provenance is wanted,
  swap the set for the Openclipart Staunton silhouettes
  (<https://openclipart.org/detail/344184/staunton-style-chess-pieces-silhouettes>),
  whose host dedicates everything it publishes to the public domain, and rerun the
  preview and build.

## What is NOT used

- **Lichess's own piece sets** (cburnett and friends) are deliberately not used.
  They carry GPL/CC-BY-SA terms and are somebody else's artwork; the brown board
  palette only follows a widespread chess convention, and no lichess file,
  sprite, or brand asset is included here.
- **`HollowLeaf1981/ChessPieces`** (MIT) was evaluated and not used: its sets are
  stylised rather than Staunton.

## This project's own code

Everything else in this directory — the rules engine, the opponent search, the
lichess client, the panel, the styles, the tests — is original to this plugin.