In Minesweeper, the goal is to find and mark all the mines that are hidden under the grey squares as quickly as possible.
The board has numbers that show how many bombs are next to it. This includes the directions up, down, right, left, and all the angles. Once you know there is a mine, you should put a flag on it. If you play or show a square with a bomb on it without marking it, the bomb will go off. In this form, you won't blow up, but you will lose points.