% kuromasu 38 by {unknown}, http://www.janko.at/Raetsel/Kuromasu/038.a.htm
kuromasu
medium-
9 9
3..4.4..4
.........
.4..4..7.
.........
3..2.3..3
.........
.5..5..4.
.........
3..4.5..3
