checkers
Copyright 2026 magmacrunch media


THE LICENCE

Everything in this repository -- the game in web/, its terminal version in
tui/, its tests, the tools and the documentation -- is licensed under the
PolyForm Noncommercial License 1.0.0, in the LICENSE file beside this one.

Read it, learn from it, build on it, play with it. Any noncommercial purpose is
permitted, and that includes personal projects, teaching and research. What is not
permitted is commercial use: selling the game or a derivative of it, shipping it inside
a product, or running it as part of a business.

Checkers is a traditional game and nobody's property; this licence does not pretend
otherwise. What is licensed is this implementation: the rules engine, the board
renderer, the server and the arcade's presentation of them.

What is reserved: the magmacrunch name and marks and the visual design of the arcade.
If you want to use any of it, ask.


THIRD-PARTY COMPONENTS

Fonts are loaded from Google Fonts under the SIL Open Font License 1.1 rather than
shipped here as files.

The page loads adenosine-multiplayer.js, arcade-base.css, board-game-template.js, mp-server.js from the website's arcade/shared/, and the server imports server_base from arcade/shared/multiplayer/.
Those are part of the magmacrunch.com repository and adenosine, and are not copied here.
