The player with the mark X plays against the player with the mark O. The two players put their marks into the boxes of a 3 X 3 grid. The player who will place first 3 of his marks in a row, column or diagonal is the winner of Tic Tac Toe. You can play the game Tic Tac Toe in Tablets or Smartphones: Against the android. Against another player in the same device.