% hitori 117 by Otto Janko, http://www.janko.at/Raetsel/Hitori/117.a.htm
hitori
medium-
12 12
21a398467b16
4122c629333a
51b9ca384687
b81c345264a9
9b2c72251926
9528a261b748
93479598c1ac
125b6894ac34
6a562bb398c4
795152b48562
168321bac7cb
c495b7a81393
