Left-click a cell to reveal it. Right-click (or long-press on touch) to flag a suspected mine. Numbers show how many mines touch that cell, including diagonals. Reveal every safe cell to win — touch a mine and the field explodes.
The first click is always safe and opens an empty area. When the count of flags around a revealed number equals that number, you can chord-click (left+right or middle-click) to auto-reveal its remaining neighbors. Look for forced moves: a "1" with only one unrevealed neighbor means that neighbor is the mine.
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