% kuromasu 240 by Mokuani, http://www.janko.at/Raetsel/Kuromasu/240.a.htm
kuromasu
medium
17 17
...7....3....4...
......3...5......
.....3.....5.....
7...............4
.......3.3.......
..2.....3.....6..
.5....5...5....4.
....4.......5....
7....3..5..3....3
....4.......7....
.3....5...3....2.
..4.....2.....6..
.......3.4.......
4...............5
.....6.....2.....
......6...4......
...3....3....5...
