The name Tic Tac Toe should actually be "Tit Tat Toe" which was what it was called in the 16th century. Tit means to slap and Tat is a retaliation (like Tit for Tat) - Toe is for 3 third piece in a row securing the winning combination.Tic-tac-toe, noughts and crosses, or Xs and Os is a paper-and-pencil game for two players who take turns marking the spaces in a three-by-three grid with X or O. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row is the winner.Download and Enjoy.