Learn · Optimal strategy
Tic Tac Toe Solver
Recreate any valid 3×3 position and find the mathematically optimal move. The solver uses deterministic minimax analysis—never an LLM—and explains the result.
Set up a position, choose the turn, then find the optimal move.
How to use the solver
Choose Place X, Place O or Erase and reproduce the position. Set the correct player to move, then run the solver. Invalid turn counts, simultaneous winners and finished games are detected before analysis.
Learn why these moves work in the full strategy guide.
Frequently asked questions
What is the best first move in Tic Tac Toe?
The center and corners all preserve a draw with perfect play. The center participates in the most winning lines.
Can Tic Tac Toe always be won?
No. With perfect play from both sides, classic 3×3 Tic Tac Toe ends in a draw.
How does the solver choose a move?
It searches the complete remaining game tree with minimax and highlights every move with the best proven score.
What if the position is already unwinnable?
The solver recommends the move that achieves the best possible result and does not claim a forced win unless the game tree proves one.