The classic MineSweeper reloaded!

Mark all mines and reveal all other squares. If it is not a mine, an uncovered square shows the number of mines around it.

The right mouse is used to set flags and is always safe
    - right-click on a number will set if possible the same number of flags.

The left mouse is used to reveal squares and is not always safe.
    - left-click on a number will reveal if possible the same number of squares.

You can play with various mine coverage. Playing at 10% or 60% is rather easy, 30-40% is quite difficult.