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How to play minesweeper

Updated July 2026

If you have never finished a board, the problem is almost never intelligence — it is that nobody showed you the first three deductions. Here they are, in the order you meet them. (For the formal version, see the rules.)

covered tile provably safe provably a mine

1. Open anywhere, then look for blanks

Your first click is safe in every modern version, so just click. What you want is a cascade — a blank tile whose neighbours open automatically, giving you a wall of numbers to work from. A corner or an edge is a slightly better opening than the middle, because edge tiles touch fewer tiles and produce tighter constraints.

2. Find a number whose mines are all accounted for

The first real deduction: a "1" touching exactly one covered tile. That tile is the mine — there is nowhere else for it to be.

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The top "1" touches one covered tile. That tile must be the mine.

3. Use that mine to free everything else

Once a mine is known, every number touching it has one fewer mine to place. A "1" that already touches a known mine is satisfied: all its other neighbours are safe, and you can open them without thinking.

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The lower "1" already touches the known mine, so its remaining neighbours are provably safe.

That loop — find a forced mine, use it to satisfy a number, open what that frees — solves most of a beginner board on its own.

4. When the loop stalls, subtract

Sooner or later no single number decides anything. Then you compare two of them. If one number's covered neighbours are entirely contained inside another's, subtract: the difference tells you about the tiles that are not shared. That is the engine behind every named pattern, including the famous 1-2-1. Those are worth learning properly — it is the biggest single jump in ability.

5. Do not guess early

Early guesses feel cheap because they are: the board usually has a provable move somewhere else. Scan the whole frontier before you gamble. Late in a classic board, though, a genuine 50/50 can exist and no amount of scanning will help — that is a flaw in the board, not in you, and it is exactly what no-guess generation fixes.

Playing on Google's version

Search "minesweeper" on Google and you get a playable board. Same rules; flags are placed with right-click on desktop, or by switching to flag mode on mobile. Everything on this page applies unchanged.

Frequently asked

How do you play minesweeper for the first time?
Click anywhere, look for a number touching exactly as many covered tiles as it needs mines, flag those, then open everything around numbers that are already satisfied.

What do the numbers mean?
How many of the eight neighbouring tiles are mines.

Why did I lose on my first click?
You shouldn't have — modern versions place mines after your first click.

Learn it once, then play a version that never cheats you.

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