Mode picker

Tic-Tac-Toe

Nine squares. Three in a row wins. Perfect play from both sides always draws.

3×3 board optimal AI live engine
Pick a mode
Engine difficulty
Press New game to start
Modevs AI · medium
Turn—
Time0:00
Statusidle
Click any empty square to place your X. AI plays O. First to connect three in a row horizontally, vertically, or diagonally wins.
© 2026 BoardDuel · free to play · privacy-first Home