Privacy
This game has no account, advertising, analytics or external game service. Game moves are checked on your device.
Saved in your browser
The game uses local browser storage to remember your mode, board size, Practice position at each size, open Daily dates, cleared pairs, selected number and open hint. These records are not sent by the game to a server.
Records use keys beginning with tenrill:v1:. Clearing this site’s browser data removes saved progress. Private browsing or storage limits may prevent saving. A storage error leaves your current attempt in the open tab; closing that tab may lose unsaved moves.
If a saved record is damaged or uses an unsupported version, the game keeps its original text until you explicitly confirm a reset. Reset replaces only the identified record.
Loading the site
The hosting service receives ordinary page and file requests and may keep access logs, including IP address, request time and browser information. Hosting retention and processing depend on the service used to host this copy of the game.