% kuromasu 15 by Warai Kamosika, http://www.janko.at/Raetsel/Kuromasu/015.a.htm
kuromasu
medium
13 13
.5.....5.....
....8.....a.2
.......8.....
.4.2..6.8....
..3....3..d..
5.......5...2
..4.......e..
2...9.......3
..4..b....d..
....7.a..d.9.
.....b.......
7.6.....3....
.....d.....6.
