Legal notice

Last updated: 31 October 2026

This English translation is provided for information only; in case of discrepancy, the French version prevails.

Website publisher

The CocoChess website (https://cocochess.com/) is published by:

• Company name: SILADEL
• Address: 7 chemin des Coquelicots, 81990 Cambon, France
• Email: [email protected]

Hosting

The website is hosted by:

• OVH SAS, SAS with a share capital of €50,000,000, RCS Lille Métropole 424 761 419
• Address: 2 rue Kellermann, 59100 Roubaix, France
• Website: www.ovhcloud.com

Traffic between your browser and the website goes through the network of Cloudflare, Inc. (United States), which protects the website and caches its files.

Contact and reporting

For any question, or to report illegal content or behaviour contrary to the terms of use (message, username, avatar…), write to [email protected] or use the game's “Help & support” form, subject “Report”. If possible, give the username of the player concerned, the date and the nature of the content.

Intellectual property

The CocoChess software (the game and its server) was written by IGREJA David. It is free software, distributed under the GNU Affero General Public License, version 3 or later: anyone may use, study, modify and redistribute it under the terms of this licence, which requires in particular that anyone running a modified version offers its source code to its users.

For now, the source code of CocoChess is not public.

CocoChess uses free components created by other authors, which remain subject to their own licence:

• the Cheese chess engine, which powers the bots: GNU GPL version 3, rights reserved to its author; its source code, as compiled for CocoChess, is available at github.com/Goldron/Cheese-wasm;
• the game rules in the browser, chess.js: 2-clause BSD licence; on the server, notnil/chess: MIT licence;
• the Phaser graphics engine: MIT licence;
• the piece sets taken from Lichess: cburnett and merida (GNU GPL version 2 or later), chessnut (Apache 2.0), fantasy, celtic and spatial (MIT);
• the predefined DiceBear avatars (CC0 1.0) and the flag-icons flags (MIT).

Content published by players (username, uploaded avatar, messages) remains their responsibility, under the conditions set out in the terms of use.

Personal data and cookies

How your data is processed and which cookies are used is described in the privacy policy.