Description: 考验智力的棋牌游戏，两个本方颜色的棋子可以令中间对方的棋子反转成本方颜色。落子时，必须能反转对方的棋子，否则不能下，最终哪方棋子多为胜。 Each of the two sides corresponds to one player; they are referred to here as light and dark after the sides of Othello pieces, but "heads" and "tails" would identify them equally well, so long as each marker has sufficiently distinctive sides.

Instructions: 考验智力的棋牌游戏，两个本方颜色的棋子可以令中间对方的棋子反转成本方颜色。落子时，必须能反转对方的棋子，否则不能下，最终哪方棋子多为胜。
Each of the two sides corresponds to one player; they are referred to here as light and dark after the sides of Othello pieces, but "heads" and "tails" would identify them equally well, so long as each marker has sufficiently distinctive sides.