What’s saved
Your Sudoku progress, notes, difficulty preference, answers and solved-puzzle notebooks for all seven collections, puzzle statistics, display preferences, bookmarked games, and dated puzzle activity are stored locally on this device using browser storage.
No account needed
You can play without creating a Sudokuloft account. This baseline has no account synchronisation, email collection, or installed advertising scripts. Fonts and puzzle artwork are served locally by this site. Your hosting provider may process requests to serve the website.
Website analytics
Sudokuloft uses Google Analytics to understand website visits and usage. Google’s tag may use cookies and process browser, device and page-visit information. Puzzle answers and progress backups are not included in custom analytics events. You can manage cookies in your browser settings. See how Google uses information from sites that use its services.
Your choice
You can download a progress backup from My activity and restore it in another browser. Backup files are read locally; your game data is not uploaded by the restore feature. Keep downloaded files somewhere you trust. Restoring replaces matching saved sections after confirmation.
You can remove this site’s stored progress using your browser’s site-data settings. Private browsing and clearing site data may prevent your progress from being kept. This is a description of the current prototype, not a legal policy for services that may be added later.
Your activity