% kuromasu 157 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/157.a.htm
kuromasu
medium-
13 13
5...6...4....
.c.......5...
.....8.5...5.
.........3...
..........7..
.8.99.96.....
..8.7....d6d.
.....a..7....
.3.....5..4..
7.2..56.59.9.
.4.74........
j..i....gk...
..7..7.6..6.c
