% kuromasu 226 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/226.a.htm
kuromasu
medium
18 10
......7.........3.
........fd........
a.9...c....9......
.7......7....5....
6..f..........3..3
9..c..........8..8
....8....7......9.
......3....2...8.6
........46........
.6.........4......
