Tic-tac-toe (or Noughts and crosses, Xs and Os) is a game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three respective marks in a horizontal, vertical, or diagonal row wins the game
Tic-tac-toe (or Noughts and crosses, Xs and Os) is a game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three respective marks in a horizontal, vertical, or diagonal row wins the game