Play Ultimate TicTacToe HTML5 Game Instruction
Ultimate TicTacToe is a free online HTML5 game that is a challenging variation of the classic game TicTacToe. The game is played on a 3×3 grid of 9 smaller TicTacToe boards. Players take turns placing their marks (X or O) on the smaller boards. The first player to get 3 of their marks in a row on any of the smaller boards, or on the larger 3×3 board, wins the game.
