Privacy

The short version

• No accounts. You cannot register here, so there is nothing to register with.
• No cookie banner, because there are no tracking cookies. Nothing on this site follows you to other sites.
• Nothing is sold or shared with advertising networks or data brokers.
• Your times live in your own browser, not on our server.

Everything below is the detail behind those four lines.

What is stored in your browser

The game keeps a few small values in your browser's localStorage — not cookies, and never sent anywhere:

• your personal best time per game and difficulty level,
• an unfinished board, so a page reload does not lose your progress or your timer,
• your preferences, such as whether conflict highlighting is on.

You can see all of it on the records page and delete it with one button there, or by clearing site data in your browser. Deleting it is final — there is no server copy to restore from.

What the server stores

Right now: nothing about you. There is no account, no leaderboard yet and no analytics installed. The server hands you a puzzle and forgets you.

Like every web server, ours writes standard access logs (IP address, time, requested address, browser identification). Those come from the hosting layer, are used only for diagnosing failures and abuse, and are rotated automatically.

What will change when the leaderboard arrives

The daily challenge and the global leaderboard are the next thing being built. When you submit a result, the following will be stored:

• the nickname and country you choose yourself — publicly visible on the leaderboard, and never verified against anything,
• your time, measured on the server so the ranking cannot be faked,
• a random identifier (player_key) generated once in your browser. It lets us say "recover your history" if accounts ever arrive, instead of "start from zero". It is not linked to your identity.
• a hash of your IP address (ip_hash), not the address itself — used to limit submissions per hour and to clean up cheating retroactively without wiping the whole leaderboard,
• your browser identification and language version, for the same purpose.

Submitting a result will always be a deliberate action. Playing without submitting anything stores nothing on the server.

Analytics and advertising

There is no analytics installed today. When it arrives it will be self-hosted and cookie-less — which is also why this site needs no consent banner.

There are no ads today. If they arrive, European law will require a consent management platform, and that will be visible: a banner will appear, and this page will be updated before it does.

Contact

Questions about this page or a request to remove a result from the leaderboard: use the address published on the terms page.