% kuromasu 104 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/104.a.htm
kuromasu
easy+
9 9
..6.57.2.
..a...7.4
...7...55
.........
.7.5.....
....b....
9.6.5.4.2
e...8..2.
.5...5...
