Minesweeper

You win Minesweeper by revealing every square that does not contain a mine. A revealed number tells you how many mines are in the directly neighbouring squares, including diagonals. Opening a mine ends the round.

Reading numbers and marking squares

A One means there is exactly one mine among the neighbouring squares. It does not tell you the direction. Combine the clues from nearby numbers. A revealed empty square has no mines immediately around it; connected empty areas open automatically.

A flag marks a square you think contains a mine. It records your deduction, not confirmation from the game. To win, you must reveal the safe squares; placing all the flags alone is not enough.

Computer and phone controls

Click or briefly tap a covered square to open it. Place a flag by right-clicking, pressing and holding, or enabling the “Flags” switch. Turn flag mode off again before revealing squares normally.

Use the arrow keys to move focus across the board. Enter or Space performs a normal click, and F places or removes a flag. After switching modes, check which mode is active.

Board sizes

Mode	Size	Mines
Easy	9 × 9	10
Medium	12 × 12	24
Hard	16 × 16	40

The daily game uses the Medium board. Everyone starts with the same minefield and an already revealed safe starting area. In free play, your first click is protected: the mines are placed afterwards. An unfinished board is currently not saved for later visits.

Will I have to guess?

Sometimes. Spielaro guarantees a safe start, but does not check that every later position can be solved by logic alone. Look for certain deductions first: if all but one of the neighbours around a One are already revealed, the last covered neighbour must contain the mine.

Do not confuse a flag with certainty. An incorrect flag can lead to further mistaken deductions. For puzzles with exactly one solution, try Sudoku or Nonogram. See the full game catalogue for more choices.