% kuromasu 91 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/091.a.htm
kuromasu
medium-
13 13
c...d........
.3..2.4.2.97.
4..3.5.3.4...
.7......a..7.
..6.4....6c..
.......6..7.5
.3.3.8.......
...........87
5.2.2.8..b9..
.5.2.9....c..
........mj...
..5.3..a.....
...c....l....
