Each safe spot contains a unique hint to help determine if each box is safe, contains a mine, or a booby-trapped mine. Type 'S' if you believe the square is safe, 'M' if you believe there is a mine with no booby-trap, and 'B' if you believe there is a booby-trapped mine. Adjacent includes diagonals. A mine is not booby-trapped only if it is specifically said not to be. This quiz can be done without guessing!