% minesweeper 117 by Otto Janko, http://www.janko.at/Raetsel/Minesweeper/117.a.htm
minesweeper
hard
17 17
1.2.....1.......1
2.2.1..2.2..20..1
.21..1.222....0..
.1.......3..1....
..1..13....2..21.
.1......63.0....0
....21......3..2.
..331.....3.....2
.3....2.4.4.3....
1.....1..33.2.23.
..3.12..3....13..
3..5......1.....2
.6...4..43...1.3.
.4...2.2....1..3.
..3.11..1..3...3.
..1.2..0......2.1
.1.......13..21..
mines 0
