Tic-Tac-Toe
Make three Xs in a row before the CPU makes three Os. You go first. Tap an empty square or focus the board and use keys 1–9 in reading order.
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Use Tab and Enter or Space. Arrow keys move between available squares.
Free local play. Best scores are stored only on this device and shared by everyone using this browser. No accounts, prizes or public rankings. CPU search is bounded; no network connection is used for play.
How to play Tic-Tac-Toe
- Choose an empty square to place your mark, then let the computer take its turn.
- Complete three marks in a row, column, or diagonal before the computer.
- A full board with no winning line is a draw. Start a new round whenever you want.
Try this: Watch for immediate threats before making your own attack. A fork creates two winning chances at once.