ShadowBot Gaming
⨯⨯⨯ Single Player · Multiplayer

Tic-Tac-Toe

vs unbeatable AI or play a friend live

Your turn
You 0·AI 0·Draws 0

About Tic-Tac-Toe ⨯ 3-in-a-row classic

The browser-friendly version of the classic 3-in-a-row pen-and-paper game. Easy mode lets you win quickly, Hard mode plays the unbeatable minimax algorithm. Pass-and-play multiplayer also supported via shareable room links.

How to play Tic-Tac-Toe

  1. Pick a square in the 3×3 grid to place your X.
  2. AI plays its O.
  3. First to line up three Xs or Os (row, column, or diagonal) wins.

Tips & strategy

  • Always grab the center on your first move — it's part of more winning lines than any corner.
  • A corner is the second-best opening; edges are worst.
  • In Hard mode, the best you can ever do is force a draw.

FAQ

Can the Hard AI be beaten?
No. The Hard AI plays perfectly using minimax — the best outcome you can force is a draw.