% kuromasu 7 by Warai Kamosika, http://www.janko.at/Raetsel/Kuromasu/007.a.htm
kuromasu
medium-
9 9
4.......2
.75....3.
...7...6.
......8..
....6....
..7......
.4...3...
.5....b5.
6.......3
