Basic principles and objectives
Minesweeper's goal is to locate and label every mine buried beneath the grey squares in the shortest amount of time. To do this, click on the circles to make them visible. One of the following will be present in every square:
You can start by clicking any square because it is assured that the first square you open won't contain a mine. On your first attempt, you'll frequently land on an empty square and then unlock a few adjacent squares, making it simpler to move on. Then, all that's left to do is locate the mines by essentially just glancing at the numbers displayed.
Winning
Open all non-mined squares to win. If you've opened all the empty/nr squares but haven't flagged the mine squares, they'll auto-flag and you win. Flagging is only needed to keep track of where you think the mines are. Opening all non-mine squares wins. This can help you improve your time:
Tablets and phones
Playing on a tablet, phone, or other touch device prevents right-clicking on squares. Right-clicking involves pressing and holding a square until a flag box appears. Pressing down cycles the box through Flag, Question Mark, and Clear. Stop pressing when the box shows the state you want to mark the square.
Gameplay
Minesweeper has five actions: