Minesweeper

How to play

Reveal every square that doesn't hide a mine. Each revealed number tells you how many mines touch that square, including diagonals. Use the clues to work out where the mines are and mark them with flags. Your first click is always safe and opens up an area to start from. Clicking a number whose mines are all flagged reveals the rest of its neighbors at once (chording). Clear all safe squares to win — hit a mine and it's game over. Choose Easy (9×9, 10 mines), Medium (12×16, 30 mines) or Hard (16×30, 99 mines).

Tips

• Start at the edges of open areas: a 1 next to a single hidden square means that square is a mine.
• Learn the 1-2-1 and 1-2-2-1 patterns along a wall; they tell you exactly where the mines are.
• Chord as soon as a number is satisfied: it is the fastest way to clear safe squares.
• When only a coin flip is left, guess early rather than late so you lose less time.