How to play
- Open every cell that does not hide a mine. A number says how many mines touch that cell. Your first tap is always safe and never touches a mine.
- Beginner is 9×9 with 10 mines, Intermediate 16×16 with 40, Expert 30×16 with 99. The timer starts on your first tap.
- Mark a mine with a flag: long-press on a phone, right-click or F on a keyboard, or switch on Flag mode and tap. Flags cannot be opened by accident.
- Tap an open number whose flags already match it to open every other cell around it (chording). A wrong flag there costs you the game.
- Hint opens one safe cell — you get three per game. Best time is kept per board size. Games save automatically.
- Keyboard: arrow keys move, Enter or Space opens (or chords on a number), F flags.