The board
Easy is 9×9 with 10 mines, Normal is 12×12 with 24 mines and Hard is 16×16 with 40 mines. The counter at the top shows how many mines are left once you subtract your flags.
Minesweeper is a logic puzzle on a grid of hidden squares. Some squares hide mines. Open every safe square without opening a mine and you clear the board. Each number you uncover tells you how many mines touch that square.
Easy is 9×9 with 10 mines, Normal is 12×12 with 24 mines and Hard is 16×16 with 40 mines. The counter at the top shows how many mines are left once you subtract your flags.
Mines are placed after your first tap, never on that square or the squares around it, so the first tap always opens a clear area to start from.
A number from 1 to 8 counts the mines in the eight squares around it, including diagonals. A blank square has no mines nearby, so its neighbours open automatically.
Mark a square you know is a mine with a flag. On a phone, long-press a square or switch to Flag mode with the Dig and Flag buttons. Flagged squares can't be opened by accident.
When a number already has that many flags around it, tap the number to open all its other neighbours at once. If a flag is wrong, a mine will go off, so only chord when you are sure.