MineSweeper

You must locate the 60 mines hidden in the 2020
grid.

Click the left button in one of the squares.

If you hit a mine 'M' then you have lost.

If you miss a mine then a number is revealed.

This is the number of adjacent squares
(including diagonals) that contain mines.

If you hit a 0 then the surrounding squares are
revealed and this process floods outwards.

When you locate a mine mark the square using the
right button.  The right button on a marked
square unmarks it.

When you have marked the position of all 60 mines
click 'Reveal'.