Ultimate Tic-Tac-Toe
Nine small boards make one big board — where you play in a small board sends your opponent to the matching board.
About the game
Ultimate Tic-Tac-Toe turns a simple game into real strategy: every move decides where your opponent must play next. The computer searches several moves ahead — you’ll need to plan.
How to play
- Win a small board (three in a row) to claim it; claim three small boards in a row to win.
- The cell you pick (e.g. top-right) forces your opponent to play in the matching small board (the top-right one).
- If that board is already decided or full, the next player may choose any open board.
- A win scores 150 + 20 × game number and starts the next game; draws continue; a loss ends the run.
Controls
Tap an empty cell inside a highlighted (yellow) small board.
Tips for a high score
- Avoid sending your opponent to the center or corner boards.
- Sometimes a “useless” move is worth it to send them somewhere bad.
- Sending them to a finished board gives them a free choice — usually bad for you.
FAQ
- How do you play Ultimate Tic-Tac-Toe?
- Win a small board (three in a row) to claim it; claim three small boards in a row to win. The cell you pick (e.g. top-right) forces your opponent to play in the matching small board (the top-right one). If that board is already decided or full, the next player may choose any open board. A win scores 150 + 20 × game number and starts the next game; draws continue; a loss ends the run.
- What are the controls?
- Tap an empty cell inside a highlighted (yellow) small board.
- Any tips for Ultimate Tic-Tac-Toe?
- Avoid sending your opponent to the center or corner boards. Sometimes a “useless” move is worth it to send them somewhere bad. Sending them to a finished board gives them a free choice — usually bad for you.
- Do I need to download or sign up?
- No. Ultimate Tic-Tac-Toe runs in your browser on phone or desktop for free. Your best score is saved locally in your browser.