Terms of use

Private test version. Last updated 13 November 2026. This text will be completed with the operator's name and contact address before public release.

The game

ChesStresS is a chess game. This is a private test version: features may change, and progress may be reset.

Who can play

You must be 13 or older. If you are under 18, play with the agreement of a parent or guardian.

Tokens

Tokens are a game item with no cash value. They cannot be exchanged for money, goods or prizes, and cannot be transferred between players. You can always play without spending tokens.

Fair play

Play your own moves. Engines and outside help are not allowed, except opening books in correspondence games. One account per player. We may close accounts that break these rules after review by a person; you will be told why and can appeal.

Your games

You and your opponent may freely use, record, stream and share your own games, including screenshots and video. You allow us to store your games and to show and broadcast them inside ChesStresS and on its official channels. You may not copy other players' games in bulk or by automated means.

Behaviour

No offensive names, harassment or impersonation of staff or other players.

Third-party software

The game uses Stockfish, a chess engine licensed under the GNU GPL v3. Its licence text is included with the game.

Liability

The test version is provided as it is, without guarantees of availability. Nothing in these terms limits rights you have under consumer law.

Law

These terms are governed by the law of England and Wales.

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