% kuromasu 253 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/253.a.htm
kuromasu
medium
12 12
3....g...4..
......c.....
6..a..6.....
.b........4.
37...d......
..4.......7.
.6.......8..
......3...5b
.8........6.
.....h..9..8
.....f......
..7...4....a
