How to Play Minesweeper

Objective

Clear the board by revealing all safe cells without detonating any mines. Flag every mine and uncover every safe square to win.

Controls

• Left-click — Reveal a cell.
• Right-click — Place or remove a flag on a cell you believe contains a mine.
• Left-click on a revealed number (chord) — If the correct number of adjacent flags are placed, automatically reveal all remaining neighbors.

The Numbers

Each revealed cell shows a number indicating how many of its up to 8 neighboring cells contain mines.

• A blank cell has zero mine neighbors — its neighbors are revealed automatically.
• Use the numbers to deduce which hidden cells are safe and which contain mines.

Flags

Right-click a hidden cell to place a flag (🚩) marking it as a mine. The mine counter in the header decreases with each flag placed. Right-click a flagged cell to remove the flag.

Winning & Losing

• Win — All non-mine cells are revealed.
• Lose — You click a cell containing a mine. The board reveals all mine locations.

The first click is always safe — mines are placed after your first move.

Difficulty Levels

Tips

• Start near the center — it gives you more neighbors to work with.
• When a number equals the count of its hidden neighbors, all of them are mines — flag them all.
• When a number equals the count of its flagged neighbors, all remaining hidden neighbors are safe — reveal them.
• Use the chord click to quickly clear areas once flags are placed correctly.
• If you're stuck, make an educated guess in a corner or edge where probability is lower.