Flagger

## Description

In _Flagger_ the player must reveal the location of mines by marking them.
This is done by revealing cells which contain numbers indicating how many
mines are directly adjacent (if no mines are adjacent at all, the cell is
completely empty).

If a mine is clicked on, all mines are revealed and the game ends. If all
mines are marked, the player wins the game.

Unlike the Windows game Minesweeper, Flagger does not calculate empty blocks,
so any cell on the screen must be clicked on (left for revealing, right for
setting a flag). Also, the game runs against the clock while playing, not just
for highscore reason.

Flagger