% kuromasu 9 by Warai Kamosika, http://www.janko.at/Raetsel/Kuromasu/009.a.htm
kuromasu
medium-
9 9
.5.....3.
2.......5
..6.4.7..
...d.c...
..6...6..
...8.7...
..5.6.3..
3.......8
.b.....9.
