Play X vs O against our AI or a friend — classic strategy, instant play, no download.
Tic Tac Toe (also known as Noughts and Crosses, or X and O) is one of the world's most beloved classic games. Play instantly in your browser — no download, no sign-up. Challenge our AI or play with a friend in two-player mode on the same device.
Two players alternate placing their marks (X or O) on a 3×3 grid. The first player to get three in a row — horizontally, vertically, or diagonally — wins. If all nine cells fill without a winner, the game ends in a draw.
Take the center square on your first move — it connects the most winning lines. Corners are the second most powerful positions. On Hard mode, our AI uses the minimax algorithm and is truly unbeatable — a draw is the best possible outcome.
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