劍橋詞典a game played on a piece of paper in which two players write either O or X in a pattern of nine squares . It is won by the first player who places three Os or three Xs in a straight line . 井字游戲，「連城」游戲（二人輪流在一個井字方格中畫X和O，先列成一行者得勝） 返回 tic-tac-toe