% kuromasu 171 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/171.a.htm
kuromasu
medium-
13 13
3...4......4.
.8.......3...
3.a5.6.6...3.
..........a.7
47..7.a.9....
..l..........
......l......
..lj..m......
........e....
.3.......8.8.
8..a.8..7..c.
5..d......3.4
..4.5.5b...4.
