Deduction puzzle
Minesweeper
Open the whole field without ever hitting a mine. The numbers tell you everything.
One puzzle a day, the same for everyone
The day's grid is a 12 × 12 field with 22 mines, drawn from the date. Before it's shown to you, a logic solver finishes it without ever guessing: if even one cell would require a gamble, the grid is thrown out and another one is drawn. A region is already open at the start to get you going.
- The same field for everyone, until midnight in your device's time zone.
- A region is already open at the start: the first move is never a gamble.
- Hitting a mine ends the game, but retrying costs nothing.
- Completing a challenge, any of the four, extends your streak by one day.
The Free play / Daily challenge toggle sits at the very top of the board. The challenge never touches your free-play best scores, and free play stays unlimited.
Five steps to your first win
- Start from the open region.Every new grid already has a safe zone open. The numbers along its edge are your starting point.
- Read a number.It counts the mines hidden in the eight cells around it. A “1” has exactly one neighboring mine.
- Deduce the mines.If a number touches exactly as many hidden cells as its value, they're all mines. Flag them.
- Deduce the safe cells.If the flags around a number already match it, all of its other hidden neighbors are safe. Open them.
- Open all the safe ground.The game is won when every mine-free cell is open. There's no need to open the mines.
What you need to understand
One input for every way to play
Mouse and trackpad
A left click opens a cell. A right click places or removes a flag. On a touchscreen, the “Flag mode” button switches taps between opening and marking.
Touchscreen
Cells are at least 30 pixels wide on the 9 × 9 grid. Turn on “Flag mode” to mark mines without a right click.
Keyboard
Tab moves from cell to cell. Enter or a tap opens the cell; the space bar places a flag. Each cell announces its row, column, and state.
Five things worth knowing
- No grid on this site requires guessing. If you're stuck, the missing information is elsewhere on the field, not in a gamble.
- The “1-2-1” pattern along an edge is a classic: the two cells under the “1”s are mines, the one under the “2” is safe.
- Placing flags isn't required to win: they're a memory aid. Winning depends on opened cells, not on flags.
- When a number already has all its flags, its other neighbors are safe in one go. It's the most useful shortcut in the game.
- The mine counter tracks your flags, not the real mines. A misplaced flag makes it lie: it's up to you to remove it.
Minesweeper, in detail
No, never, and that's not an empty promise. Every grid is generated and then handed to a solver that applies only Minesweeper logic. If it can't finish without guessing, the grid is thrown out and another one is drawn.
Because the first move in classic Minesweeper is always a gamble. We generate every grid around a safe cell and open its region right away: you start with something to reason about, never in the dark.
The number of mines in the eight cells surrounding that cell, diagonals included. A “3” has three mines among its eight neighbors; an empty cell has none and opens its neighbors in a chain reaction.
For marking cells you're sure hide a mine. They're a memory aid: winning is judged on opened cells, not on flags. The mine counter simply tracks the flags you've placed.
By opening every cell that doesn't hide a mine. You don't need to flag the mines or open them: as soon as the last safe cell is uncovered, the game is won.
The game ends and the field is revealed. Nothing is lost, though: the “New grid” button draws another one right away, and in challenge mode you can retry the same field.
It's your best time, kept separately for each level. The clock starts on your first move, not when the page loads.
The day's field is generated from the date: everyone gets the same one, wherever they are. It's verified as fully deducible before it's shown, a region is already open, and only your first win of the day is recorded.
Keep exploring the site
All four games play right on the page, with no account and no download.