% kuromasu 92 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/092.a.htm
kuromasu
medium-
13 13
...i....b....
.2..4..2.c..5
5.39.63.4..3.
...k...k.....
..........7..
..5....9..7.8
.6..6...6....
.....4.a.9..6
..6.2...7....
..........5.6
.5.7.68......
5...5....4.2.
...7......6.4
