Privacy
The half-finished puzzle is still on this computer.
Digits, notes, and the time on the clock sit in this browser's localStorage, along with whether the timer is showing. The same browser still has them tomorrow. A different browser, or a private window, starts from the given digits. We never receive that progress. There is no account.
There is no analytics, and there are no ads. If either one is added later, this page will be updated first.
The site is static files. Cloudflare and the static server keep ordinary access logs of requests for those files. The logs are about the request, not the board.
Updated .