You are X. Click a cell or use arrow keys + Enter.
You're X, the CPU is O. Get three of your marks in a row — across, down, or diagonally — before the robot does!
💡 Against Hard the best you can hope for is a draw — grab the centre or a corner and don't hand it a free fork!
📜 Did you know? Noughts & crosses became OXO, one of the first video games, built in 1952 on Cambridge's EDSAC computer — you picked squares with a rotary telephone dial.