Objective Find the empty squares while avoiding the mines. The faster you clear the board, the better your score. How To Play ? Uncover a mine, and the game ends. ? Uncover an empty square, and you keep playing. ? Uncover a number, and it tells you how many mines lay hidden in the eight surrounding squares—information you use to deduce which nearby squares are safe to click. ? Uncover all safe squares to win. You can use the flags to mark where you think mines are hidden. To set or unset a flag, long click on a square.