About play-chess.io
A free chess board that opens in a browser tab, with no account, no download and nothing to pay at any point.
What play-chess.io gives you
play-chess.io is a chess board plus an opponent, reachable in one click from any browser. Three computer levels cover the range from a first game to a hard one, an online game can be started and handed to a friend as a link, and a pass-and-play mode shares one screen between two people in the same room. Nothing is gated: every mode is available on a first visit, and no email address is asked for at any stage.
The chess engine runs inside your own browser tab rather than on a server, which is why a game against the computer keeps working when the connection drops. The rules it enforces are the full FIDE set, verified move by move — the method is set out on how the engine is tested.
Who operates the site
play-chess.io is an independent project rather than a company product, run and paid for by one person. Correspondence goes to the address on the contact page, which is read by a person rather than an autoresponder, and registered details are supplied on request to anyone who needs them.
The chess engine, the interface and the written material on this site were built and are maintained by the operator. Nothing on the pages is syndicated from another chess site, and no part of the engine is a licensed third-party component.
How the site is paid for
play-chess.io carries no advertising, sells nothing and runs no paid tier, so a visitor is never the product being sold. The running costs are small — a domain and static hosting — and they are paid out of pocket by the person who built it.
Why this matters enough to state: a free chess site with no visible business model usually earns its money from advertising networks or from selling behavioural data. Naming the funding source is the only way a reader can tell which kind of free they are looking at. What is collected, and what is not, is set out in the privacy policy.
Where the chess rules come from
Every rule on play-chess.io follows the FIDE Laws of Chess in the edition in force from 1 January 2023, down to article level: castling under Article 3.8.2, en passant under 3.7.3.2, promotion with a free choice of piece under 3.7.3.3, the fifty-move rule under 9.3. Two deliberate departures from those Laws exist, and both are documented rather than hidden — see how the engine is tested.
What play-chess.io deliberately does not do
There is no rating, no game archive, no puzzle trainer, no tournament system and no social layer, and none of these are planned as a surprise later. A finished game exists in the browser tab and disappears when the tab closes.
The reason is a single trade: all of those features need an account, and an account needs a signup form, and the signup form is the thing this site was built to remove. Anyone who wants a tracked rating and a searchable history of every game is genuinely better served by Chess.com or Lichess, and the main page says so plainly rather than pretending otherwise.
The engine has limits worth knowing too: no opening book and no endgame tablebase, so it plays the first moves on general principles rather than theory. Each one is described, with the reason, on the testing page.
Last reviewed 2026-07-23. Changes to this page are listed by date at the bottom of about play-chess.io.