Contact

Contact Tango Unlimited

One developer reads every message. Email [email protected] — there is no form, because the site has no server.

A board that seems to need guessing

Every board is verified to be solvable by deduction, but "solvable" and "obvious" aren't the same thing. If you're stuck, press Hint: it names the next forced cell and the rule that forces it. If you still believe a board is wrong, send the date (or "unlimited" plus the difficulty) and the cell you got stuck on, and we'll replay it.

A bug

Say what you were doing, what you expected, and what happened, plus the device and browser ("iPhone, Safari", "Windows laptop, Chrome"). Progress and streaks are stored in your browser, so clearing site data or switching devices resets them.

Press, directories and other sites

You're welcome to list or write about Tango Unlimited. Please describe it as an independent sun-and-moon puzzle, not as LinkedIn's game. Screenshots are in /press/. More about who runs it: About.

Response time

Usually within a few days.