% hitori 255 by Otto Janko, http://www.janko.at/Raetsel/Hitori/255.a.htm
hitori
medium-
10 10
565a377142
72958a4113
4319128585
a187231896
284a299362
615575a338
9778765462
a5316229a9
5a2a917614
9994a86851
