Minesweeper
Uncover every safe square without hitting a mine. Your first click never explodes, you can chord, and your best times are saved for each level.
A game is in progress. Start a new one?
This board is wider than the screen: scroll sideways to see all the squares.
Click to open, right-click or press F to flag, and press C or click a number to chord. On a phone, press and hold to place a flag.
How to play
- Open the squares that have no mine. A number counts the mines in the 8 neighboring squares.
- Your first click is never a mine, and neither are its neighbors.
- Mark mines with a flag. The counter shows the mines minus the flags.
- Chord: click a number that already has all its flags to open the rest of its neighbors.
- Keyboard: arrow keys to move, Enter or Space to open, F to flag, C to chord.
Your stats
| Level | Won | Best |
|---|
How to use it
- Pick a level: beginner, intermediate, expert, or a custom board.
- Open a square with a click or a tap. The first click is always safe and usually opens up an area.
- Each number tells you how many mines are in the 8 neighboring squares. Mark mines with a right-click, a long press, or Flag mode.
- When a number already has all its flags, click it (a chord) to open the rest of its neighbors.
- You win by opening every square that does not have a mine.
Frequently asked questions
How do you play Minesweeper?
You have to open every square that does not have a mine. Each opened square shows how many mines are around it; with that clue you work out where the mines are and mark them with a flag. If you open a square with a mine, you lose.
Can I lose on the first click?
No. The first square you open and the squares around it never have mines, so you always start with an open area.
What is chording?
It is a shortcut: if you click a number that already has as many flags around it as it shows, all the remaining neighbors open at once. You can also press C. If a flag is misplaced, you will open a mine.
What does no-guess mode mean?
It generates boards that can be solved with logic alone, so you never have to take a blind risk. On large boards it can take a moment to find one.
How do I place a flag on my phone?
Press and hold a square for half a second, or switch the tap action to Flag with the control above the board. Large boards scroll inside their own frame without moving the page.
Are my times saved?
Yes, in your own browser and separately for each level. Nothing is sent to a server, and if you clear the site data, your records are cleared too.
Levels
- Beginner: 9 x 9 with 10 mines.
- Intermediate: 16 x 16 with 40 mines.
- Expert: 30 x 16 with 99 mines.
- Custom: up to 50 x 50, with mines up to 35% of the squares.
How to play
Each number tells you how many of the eight neighboring squares have a mine. Open the safe squares, flag the mines, and clear the board without setting any off. The first square you click and its neighbors never have a mine, so you never lose on your first move and an area almost always opens up.
Basic strategy
- A 1 with only one closed neighbor: that neighbor is a mine.
- A number that already has all its flags: the rest of its neighbors are safe. Chording (click the number, or press C) opens them all at once.
- If two neighboring numbers share squares, compare how many mines each one still needs to rule squares out.
- Use the remaining mines counter to finish off the end of the board.
Patterns worth recognizing
- 1-2-1 against a straight edge: the closed squares in front of the two 1s are mines, and the one in front of the 2 is safe.
- 1-2-2-1 against a straight edge: the two middle squares (in front of the 2s) are mines, and the ones at the ends are safe.
- Subset rule: if the closed squares of a 1 are also neighbors of a 2, the extra square of the 2 is a mine.
No-guess mode
With this option the board is generated so that it can always be solved by reasoning, without gambling. It is the best way to practice the patterns above and to train for beating your best time on each level.
Keys
Arrow keys to move around the board, Enter or Space to open, F to flag, and C to chord. If you like logic games, try 2048 too.
Updated on September 29, 2026