% kuromasu 139 by Grant Fikes, http://www.janko.at/Raetsel/Kuromasu/139.a.htm
kuromasu
unknown
17 17
.7.....6..7......
..4............8.
..........7......
....7...3........
......6....5.....
....3....3......8
..8....5....8....
.....9....9....7.
...6.........5...
.4....4....5.....
....5....4....5..
8......3....7....
.....4....4......
........2...8....
......6..........
.3............2..
......4..3.....4.
