Play Ultimate Tic Tac Toe for free, no ads! Ultimate tic-tac-toe is an interesting board game. Choose mode 1 player or 2 player mode, then select the grid: 3 × 3 or 5 × 5 or 7 × 7 grid.
Ultimate tic-tac-toe rules:
The player who goes first is checked in any empty box on the board. The player needs to place 4 X or 4 O's in a row to will win.
Use the mouse to play game.
