% minesweeper 85 by Connect4, http://www.janko.at/Raetsel/Minesweeper/085.a.htm
minesweeper
medium-
9 8
...2.....
2.4.3.3.3
.........
3.2.4.1.2
.........
3.1..2.3.
.........
.3.1.2.1.
mines 20
