Privacy

Without an account, Deduza collects no personal data. We keep a random identifier and your progress in your browser.

When you finish a puzzle, we send the result (time, hints, errors) with that identifier to compute the day's percentile and league boards.

Only with your permission (in the cookie notice or below), we also send anonymous usage stats — which puzzle was opened, started, finished, hints and shares —, kept for 30 days, to improve the game.

We use no third-party trackers. If ads ever appear, they only show after your consent.

To delete your data, clear this site's data in your browser or contact us.

Allow anonymous usage stats (what was opened and played, hints, shares), kept for 30 days, to help improve Deduza.