On phones: tap the FULLSCREEN button for a pure full-screen game. On desktop: click the game once if keys don't respond.
Play tic tac toe — Free Online
Classic tic-tac-toe, hand-drawn in ink & paper. Beat the machine on easy, medium or hard — or pass the screen and duel a friend.
How to Play tic tac toe
Line up three of your marks in a row — across, down, or diagonally — before your opponent does; X always opens each round. Click or tap any empty square to ink your mark (hover to preview it as a faint ghost stroke), and choose your opponent in the margin: "the machine" on easy, medium, or hard, or "a friend" for pass-and-play on one screen. After the verdict card, tap anywhere on the board or press "start next round →" — the tally in the margin keeps score across rounds.
Tip: The medium machine only sees one move ahead, so it takes wins and blocks single threats but misses forks — set up two winning lines at once (center + two opposing corners is the classic trap) and it can only stop one. On hard, the machine searches the full game tree, so the best honest outcome is a draw.
