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Privacy

We store your settings, progress and a random player id in your browser. A separate random analytics id, deleted after 13 months, lets us count how puzzles are played (PostHog, hosted in the EU, with IP addresses discarded and data kept no longer than 25 months). It is never linked to any other site or product. Sentry receives error reports with no personal data. Vercel counts page views and measures page speed, without cookies or any id.

We set no cookies, show no ads, and never sell or share data. Rooms send your board moves and display name to our game server (Firebase) so friends can play with you.

Turn off usage stats with one click in the footer; we also honour Global Privacy Control and Do Not Track.