Tic Tac Toe (XOXO,XO,Connect 4, 3 in a Row,Xs and Os)
宁 桂
Education
Tic tac toe is a paper-and-pencil 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.