The game TAC TAC TOE offers you two modes: the game between real players and against the computer. Above the game field in the window you can set the mode and start the game. If you do not have a real opponent, play against the game bot. Your symbol is a red cross. Put three of your crosses in the line and you will become a winner. The same condition for the game between two players, but in this case you can choose your symbol: Blue Nolik or Red Cross in Tic Tac Toe.
