% kuromasu 1 by Warai Kamosika, http://www.janko.at/Raetsel/Kuromasu/001.a.htm
kuromasu
easy+
9 9
9..8.9.8.
......9..
.......3.
3....4..3
..4...9..
4..6....4
.f.......
..7......
.7.5.4..4
