% kuromasu 125 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/125.a.htm
kuromasu
medium-
13 13
3..6..9..5..3
6.8.d.7.....4
....j...ib...
.....6..8.4.3
6............
.5.....4.9...
..3...3......
...8ba......b
..9.......7.9
4............
.3.6..98...8.
7.......4.2.6
...........c.
