% kuromasu 241 by Mokuani, http://www.janko.at/Raetsel/Kuromasu/241.a.htm
kuromasu
easy+
9 9
3..4.....
....2..3.
.........
4..5.....
.3..5..3.
.....5..5
.........
.5..5....
.....3..5
