Your privacy
This page explains how ChessPlayX handles account information, game data and contact messages, and how we use cookies and Google Analytics to understand website use.
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Offline games stay on your device
Offline games and settings are stored in your browser's IndexedDB. Clearing website data deletes them. ChessPlayX does not automatically upload offline history to the server.
If you choose Create share link, we store a public copy of the board, moves and player names on our server. Anyone with that link can view the replay. Private notes, account identifiers and hidden engine data are not included.
Accounts and online games
Email, display name, sign-in sessions, game events and ratings are stored to provide the service. Session cookies use HttpOnly, so browser scripts cannot read them.
Google Analytics and cookies
With your consent, we use Google Analytics 4 (GA4), a service provided by Google, to measure visits, understand which pages are useful and improve the website. Depending on browser and Analytics settings, the data may include:
- Page URLs and titles, referral sources and interactions recorded by Analytics.
- Browser and device information, such as operating system, language and screen size, and approximate location derived from the IP address.
- Visit times, engagement duration and browser or session identifiers used to distinguish new and returning visits.
Google Analytics may store first-party cookies, such as _ga and _ga_*, to distinguish visitors and sessions. These analytics cookies are separate from the session cookies used to sign in.
Usage data is sent to Google and processed on its systems, which may be outside your country. Google's policies explain how it uses this data and the safeguards for international transfers.
Your analytics choices
Google Analytics is off by default. Before you accept analytics cookies, we do not load its script or send it visit data. Choose “Accept all” to enable it, or “Essential only” to keep analytics off. This applies throughout the site, including local-play pages. You can also open “Customize”, turn optional analytics on or off, and select “Save preferences”.
We save your choice and its version in this browser’s local storage under playboard-cookie-consent, separately from your account. It applies across languages and tabs on this site. If you clear this preference or block browser storage, we may ask again.
You can change your choice here at any time. Choosing “Essential only” disables Analytics and removes accessible _ga and _ga_* cookies on this site. It does not erase data already sent to Google. Your sign-in cookies, other preferences and locally saved games are preserved.
You can block or clear cookies in your browser and use tracking protection or a content blocker. Blocking only third-party cookies may not stop Google Analytics because it uses first-party cookies.
On supported browsers, you can use Google's opt-out add-on to prevent Google Analytics from collecting visit activity. It affects Google Analytics only; sign-in and game services still handle the data they need to operate.
Google Analytics opt-out browser add-on
Deleting analytics cookies alone does not revoke a saved consent: cookies may be created again while analytics is allowed. Clearing all site data also removes your cookie choice, may sign you out and can delete locally saved games. Blocking essential cookies can affect sign-in.
Contact messages
When you contact us, we store your name (if provided), email, message, selected topic and any attached screenshot. These details are forwarded to the team's private Telegram support chat so we can review and respond. We do not publish your message or share a player report with the reported player. Use the contact form for requests about your data.
Hidden chess
The identities of unrevealed pieces are not sent to players or spectators. Public replays retain only the information revealed during the game.