Click a square, or press 1–9. Can you beat the Unbeatable computer? (Spoiler: a draw is the best you can do!)
The classic game of noughts and crosses. Take turns placing X and O on a three by three grid, and the first to get three in a line wins. Play the easy computer to warm up, try the unbeatable computer that never makes a mistake, or challenge a friend on the same screen. The score board keeps track of wins and draws.
| Click / tap | Place your mark |
| 1 to 9 | Place a mark with the keyboard |