Ultimate Tic-Tac-Toe

Ultimate Tic-Tac-Toe is played on nine 3×3 boards arranged in a 3×3 grid. Your move decides which small board your opponent must play in next; win small boards to claim cells, and win three claimed cells in a row to win the game.

2AIComing soon

Ultimate Tic-Tac-Toe is on the way — its engine and board are being built.

Play classic instead

How to play

A 3×3 grid of nine mini 3×3 boards.
Your move's cell sends your opponent to the matching mini-board.
Win a mini-board to claim its cell on the big board.
Win three claimed cells in a row to win overall.
If sent to a finished board, you may play in any open board.