How to play Tic-Tac-Toe
- You are X and the computer is O. Players take turns placing their mark.
- Three in a row (across, down or diagonally) wins the round.
- The match is the best of five rounds. Who goes first alternates each round.
- The computer plays almost perfectly, but it slips now and then.
Controls
D-pad to move, A to place your X. Or tap a square.
- Keyboard: arrow keys or WASD, Z or Space for A, X for B, Enter to pause.
- Phone or tablet: tap the buttons on the console.
- Game controller: D-pad or left stick, A and B buttons, Start to pause.
Tips
- Starting in a corner gives the computer the most chances to slip.
- Always block a line of two straight away.
- Create a fork: two lines of two at the same time.
Your best score is saved on this device. Press Menu at any time to pause, restart, change the screen tint or go back to the library.