% kuromasu 78 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/078.a.htm
kuromasu
medium-
13 13
36..4....6.6.
.....3.2.74..
...k.........
....7.5.3....
............b
3.aa.8.5..2.8
.........4.69
..e....4.....
.j.l.....f...
....7.4.4....
78.3.....3...
..4...2.2.6.2
...d.........
