Minesweeper
Open every safe square. One wrong move and — boom.

Open every safe square. One wrong move and — boom.
Clear every safe square in Minesweeper with three difficulty levels, flags, question marks, and touch or keyboard controls.
Choose Beginner, Intermediate, or Expert and open a square to begin. Your first opened square is always safe. Revealed numbers tell you how many adjacent squares contain mines, including diagonals.
Right-click a covered square to cycle through flag, question mark, and clear. On touch screens, press and hold to choose a mark. Release when the mark you want appears.
Use the arrow keys to move between squares, Enter or Space to open, and F to cycle a mark. Click an open number to clear its remaining neighbors when the number of adjacent flags matches its clue.
Beginner has a 9 × 9 grid and 10 mines. Intermediate has 16 × 16 squares and 40 mines. Expert has 30 × 16 squares and 99 mines; its board scrolls horizontally on narrow screens.
Open every non-mine square to win. Opening a mine loses the game. Flags are reminders, not proof: clearing around a number with wrongly placed flags can reveal a mine.
Empty squares automatically reveal connected safe areas. The mine counter subtracts your flags, and the timer starts with the first reveal. The first square is protected, but later moves can still require a guess.
Try this deduction: an open 1 touches just one covered square; all its other neighbors are open. That covered square must be a mine. Flag it. Now consider an open 1 next to that same mine: every other square touching this second 1 is safe, including diagonal neighbors.
A flag is your note, not a confirmation from the game. If you guessed where to put it, do not treat it as proof. Clicking an open number with the matching number of flags opens its other neighbors, so an incorrect flag can make that click lose the round.
Start on Beginner and look around the edges of an opened area for clues with only one possibility. Compare neighboring clues before guessing. A safe first click does not guarantee a puzzle solvable entirely by deduction; when the clues leave several possibilities, there may be no certain safe move.
Minesweeper is a grid-based deduction puzzle built around local counting clues. This edition keeps the familiar raised squares and mine counter while supporting touch marking and keyboard navigation.