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Licenses

Last updated 27 October 2026

GameJar uses the works below. The same list is in THIRD_PARTY_LICENSES.md in the project.

  • chess.js. BSD-2-Clause. Chess rules and move generation. Copyright (c) 2025, Jeff Hlywa. chess.js source
  • Stockfish. GPL-3.0. The computer opponent. GameJar serves Stockfish.js 19 and its WASM to players. Copyright (c) 2026, Chess.com, LLC, based on Stockfish. Neural network by Chris Bao (sscg13). Stockfish source code
  • Stockfish.js. GPL-3.0. The browser build of Stockfish that GameJar serves. Stockfish.js source
  • react-chessboard. MIT. The chess board and the piece graphics that ship inside it. Copyright (c) 2022 Ryan Gregory. react-chessboard source
  • Baloo 2. SIL Open Font License 1.1. Display font by Ek Type, loaded through Google Fonts. Baloo 2 source
  • Nunito. SIL Open Font License 1.1. Body font by Vernon Adams and Google Fonts contributors. Nunito source
  • Game sounds. Original GameJar work. Short tones generated in the browser. Nothing here is a copied recording.
  • Avatars, bot faces, and game art. Original GameJar work. The jar mark, guest avatars, bot faces, and the Tic-Tac-Toe thumbnail are original GameJar drawings.