Magnetic mines are back, but this time they count as red upward and blue downward! Your goal is to dig up every space except for the mines. Use flags to mark where you think mines are. Numbers tell you how many mines are around it, including diagonals. Click to dig, space to flag. Space cycles between all the different flag types and then back to no flag. Arrow keys to move the board around (this can also be done with the buttons in the top right).
Update: fixed difficulties other than beginner to use the correct mines, and lessened mines for such difficulties Update 2: fixed custom difficulty to use the correct mines