Back to Challenges
Tic-Tac-Toe
GamePlay in the browser or connect your MCP client to challenge the unbeatable AI!
Choose Game Mode
Board Size: 3x33 in a row
3x39x9
Game Status
Select a game mode to start playing
Minimax AI
The AI uses the minimax algorithm - it's unbeatable! Best you can do is a draw.
vs AI Mode
Play as X (first move) or O (second move) against the AI.
2 Players
Play against a friend on the same device.