About the Tic-Tac-Toe
Noughts and crosses against a computer opponent at three levels, including one that never loses, or two players on one device. The score is kept across games.
Key features
- Play against the computer or a friend
- Easy, medium and unbeatable levels
- The starting player swaps every game
- Score kept across games
- Winning line highlighted
- Works on phones and computers
How to win (or never lose)
- Take the centre if you move first. It belongs to four of the eight winning lines.
- Otherwise take a corner. Corners belong to three lines each; edges only to two.
- Always block when your opponent has two in a line.
- Create a fork: a move that makes two lines of two at once. Your opponent can only block one.
Game facts
| Fact | Number |
|---|---|
| Winning lines | 8 (3 rows, 3 columns, 2 diagonals) |
| Different possible games | 255,168 |
| Result with perfect play | Draw |
Related games
Sudoku, sliding puzzle, and coin flip to decide who starts.
How to use the Tic-Tac-Toe
- Choose a mode or difficulty, or keep the default.
- Press Start (or just click the board) and play with your mouse, finger or keyboard.
- Your score, time and moves are shown as you play.
- Your best score is saved in this browser, so you can try to beat it next time.