% hitori 505 by Otto Janko, http://www.janko.at/Raetsel/Hitori/505.a.htm
hitori
medium-
10 10
5a1a469398
a982987835
474a656169
153658962a
9693521945
8761a52783
3596711984
2195243886
437739a962
6379134297
