Tic Tac Toe
Line up three in a row. Play against an unbeatable computer or a friend on the same screen.
About Tic Tac Toe
Tic Tac Toe (also called noughts and crosses) is a quick two-player game on a 3×3 grid. Players alternate placing their mark — X or O — and the first to get three in a row horizontally, vertically, or diagonally wins. In vs-computer mode the AI uses a perfect minimax strategy, so it will never lose: the best you can manage is a draw. Prefer playing a friend? Switch to two-player mode and take turns on the same device. A running scoreboard tracks wins and draws for the session.
Frequently asked questions
How do you play Tic Tac Toe?
Players take turns marking squares on a 3×3 grid — one is X, the other is O. The first to line up three of their marks in a row, column, or diagonal wins. If the grid fills with no winner, it is a draw.
Is the computer beatable?
The computer plays a perfect strategy, so it can never be beaten — the best you can do against it is force a draw. Switch to two-player mode to play against a friend.
Can two people play?
Yes. Choose two-player mode and take turns on the same device, alternating between X and O.
Is this Tic Tac Toe free?
Yes. It runs entirely in your browser with no sign-up and nothing is uploaded.