% kuromasu 228 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/228.a.htm
kuromasu
very hard
24 14
.........a.......7....3.
...5...........67...3...
.8....c..j....h..9......
..d..c..........7....5..
.h.fe...j.e.g.........9.
6..........h......9.....
...6....h...........6..f
9..9...........9....6...
.....c......5..........g
.c.........3.3.6...e4.3.
..g....6..........h..d..
......a..c....d..6....4.
...a...a9...........5...
.6....5.......a.........
