Games & scoring / Logic
Minesweeper: Play Beginner, Intermediate or Expert
Play Minesweeper in your browser with a safe opening area, flags, chording, a timer and a mine counter. Choose a classic difficulty or set your own board.
Minesweeper: Play Beginner, Intermediate or Expert: Makes a random minefield after your first opening, leaving that square and all its neighbours mine-free. Empty areas open together. Flags reduce the displayed mine counter but do not prove a square contains a mine. Pause hides the board and stops the timer. Your fastest win for each board size and mine count is saved on this device. Runs 100% locally in your browser with zero server file uploads.
- Category
- Health & sport tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
Click or Enter opens a square. Right-click, F, flag mode or a touch hold flags it. Click an open number to chord when its flags match. Arrow keys move focus.
Rules and strategy
A number counts mines in all eight neighbouring cells, including diagonals. If the number equals the count of still-covered neighbours, those neighbours are mines. If all its mines are flagged, the other neighbours are safe.
Look for a straight 1–2–1 boundary with exactly three unknown squares alongside it and all other neighbouring squares known safe: the two outer unknowns are mines and the middle one is safe. Extra covered neighbours or existing flags change the pattern; subtract confirmed mines first.
History
Minesweeper became a familiar desktop puzzle in the early 1990s. Microsoft's historical timeline discusses Minesweeper alongside Solitaire and Hearts in its Windows 3.0 and 3.1 era. This page is an independent implementation. Microsoft's Windows history: https://news.microsoft.com/de-at/features/die-geschichte-von-windows/.
Board and artwork
The minefield, markers and number styles are drawn here with CSS and text symbols. No external game artwork or dataset is used.
How to use it
- Choose a difficulty, or enter a custom size and mine count and start the board.
- Open squares; numbers count mines in the eight surrounding squares. Flag suspected mines.
- Open every safe square to win. Click an open number to chord when its neighbouring flag count matches.
Privacy & limitations
The minefield and scores stay in your browser. Only your best time is saved locally; no game data is uploaded.
Related tools
Frequently asked questions
Is the first click always safe?
Yes. The first square and its neighbours are safe, so the first click opens an area. Later moves can require a guess; deals are not guaranteed to be solvable by logic alone.
How do I flag on a phone or keyboard?
Hold a covered square for half a second on touch, or turn on Flag mode and tap it. On a keyboard, use Tab or arrow keys to focus a square, Enter to open it and F to flag it.
What is chording?
Click an open numbered square when the number of neighbouring flags equals its number. All unflagged neighbours open. Incorrect flags can make this hit a mine.
What custom boards can I make?
Choose 5–30 columns, 5–24 rows and at least one mine. At least nine cells must remain mine-free to allow a safe first opening anywhere.
Free tool · runs in your browser · no account required