Three in a row wins. Nobody wins? That's a cat's game.
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The classic pencil-and-paper game, three ways: against the computer, with a friend on
the same screen, or with players around the world.
✏️ Classic, 3 marks and Ultimate rules
🏆 Ratings, seasons and a weekend arena
🧩 A new puzzle every day
No account needed: play the computer or a friend on this screen. Online games and stats
need a free account; sign up later and your games come with you.
You keep only your last 3 marks: the faded one vanishes when you play again.
🔒 Online games need a free account
With an account you can play people around the world, get a rating, climb the
leaderboard, keep your stats, and pick a funny avatar.
We'll pair you with a player near your rating.
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Weekend arena
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username.
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Cat's games
Tip: press 1–9 to play a square (keypad layout, 7 is
top-left), N for a new round, H for a hint.