How to play Ultimate Tic-tac-toe
Ultimate Tic-tac-toe gives two local players a collection of smaller boards inside one larger grid. Place marks while keeping track of the wider match. Both players use the same keyboard or touch keypad and take turns.
Controls
Two players share one keyboard. WASD or arrows move the cursor, E or Space places the mark.
A tip for your first round
Look beyond the current small board. A move that helps locally can change which opportunities your opponent receives.
Play without installing anything
This version of Ultimate Tic-tac-toe plays in a modern browser. Follow the controls above and use a keyboard or the on-screen buttons where available. No account or payment is required. Any supported scores or progress are kept on this device, rather than synced to an account.
Read the Ultimate Tic-tac-toe playing guide or browse more strategy games.