Minesweeper Classic

Clear the field, avoid the mines

Minesweeper Classic is the timeless logic puzzle rebuilt as one tidy browser page. You open a grid hiding a fixed number of mines — ten on Beginner (9×9), forty on Intermediate (16×16) and ninety-nine on the Expert board (16×30). Each tile you reveal shows how many mines sit in the eight squares around it, and that single number is all you need to deduce where the rest are buried.

What sets this build apart is the safe opening. The minefield is generated only after your first click, and that tile plus its eight neighbours are guaranteed clear, so you can never lose on move one. Reveal a blank space and the board automatically floods open the whole connected empty region, leaving you to reason about the dangerous edges instead of tapping every square by hand.

Three difficulty tiers scale the challenge in seconds, and the controls cover every device. On desktop, left-click reveals and right-click plants a flag; on a phone, a tap reveals while a long-press drops a flag, with a one-tap Flag-mode toggle as a fallback. A live counter tracks mines left and elapsed time, and the keyboard works too — arrow keys move a cursor, space reveals, F flags.

The entire game is a single self-contained HTML file with no external libraries, no network requests after load and no tracking. It runs in your browser, plays on phone or desktop, needs no account and nothing to download. Your best times are stored only on your own device.

How to play

Open the start screen and pick Beginner, Intermediate or Expert to begin.
Left-click or tap a tile to reveal it; the number tells you how many mines touch that square.
Right-click, long-press, or use Flag mode to mark a square you believe holds a mine.
Open a blank tile to flood-reveal the surrounding empty area automatically.
Clear every safe tile to win; revealing a mine ends the round.

Controls

Mouse: left-click reveals, right-click plants or clears a flag
Touch: tap reveals, long-press toggles a flag, Flag-mode button flips tap behaviour
Keyboard: arrow keys move the cursor, Space or Enter reveals, F toggles a flag
Buttons: New Game restarts the current difficulty, Flag mode swaps tap action

Tips

Start with the largest revealed numbers first — a 3 means exactly three of its eight neighbours are mines, which sharply narrows the safe squares.
When a number equals the count of flags already around it, every remaining neighbour is safe to open.
On Expert, clear the edges early; the 16×30 grid rewards steady, methodical sweeping over risky guesses.