Tic-Tac-Toe

Play against a friend on one device, or take on the computer — easy for a warm-up, hard if you think you can win.

Play as

0X
0Draws
0O

Rules

Take turns placing X and O — X always starts. First to line up three in a row, column, or diagonal wins. On hard difficulty the computer plays a perfect game (minimax), so the best you can achieve is a draw; on easy it makes mistakes you can punish.

Runs entirely in your browser. The score tally is remembered only on this device.