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Tic Tac Toe

Classic 3×3 strategy game. Play against a friend or challenge the AI.

✕ X
0
Draw
0
O ○
0
X's turn
Mode
Difficulty

About Tic Tac Toe

Tic Tac Toe (also known as Noughts and Crosses) is one of the oldest and most universally recognized strategy games, played on a simple 3×3 grid. Despite its simplicity, it teaches core strategic concepts like forcing moves and drawing by symmetry. With perfect play from both sides, the game always ends in a draw - making the AI's Hard mode an ideal test of your logical thinking.

Controls

  • Click / Tap a cell - Place your mark (X or O) on that cell
  • New Game button - Start a fresh round (scores are preserved)
  • Mode buttons - Switch between 2 Players (local) and vs AI
  • Difficulty buttons - Easy (random AI), Medium (blocks wins), Hard (minimax - unbeatable)

How to Play

  • X always goes first.
  • Click any empty cell to place your mark.
  • Get 3 in a row horizontally, vertically, or diagonally to win.
  • If all 9 cells are filled with no winner, it's a draw.
  • In 2 Players mode, two people take turns on the same device.
  • In vs AI mode, you play as X against the computer (O).
  • Hard AI uses the minimax algorithm - it is theoretically unbeatable. Your best result is a draw.

Frequently Asked Questions

Yes. Select AI opponent mode and choose a difficulty level. The hardest AI uses the minimax algorithm and is unbeatable - the best you can do is force a draw.
With perfect play from both sides, Tic Tac Toe always results in a draw. Winning is only possible when the opponent makes a mistake. This is why the hardest AI can never be beaten.
Yes. Select 2-Player mode and take turns clicking on the board. Player X always goes first.
Click the Restart or New Game button to clear the board and start a fresh game. The current score tracker resets only when you reload the page.