Minesweeper
10 mines on a 9×9 board. Numbers count neighbours; the rest is logic.
Flags0/10
Time0s
Best—
Your first click is always safe — the board is generated after it.
Left click: reveal · Right click: flag
How does it work?
Each revealed cell shows how many of its 8 neighbours are mines. Those numbers form a constraint system: read two adjacent clues together and you can often prove which cell must be a mine and which must be safe. The first click is always safe because the board is generated after it.