% hitori 456 by Otto Janko, http://www.janko.at/Raetsel/Hitori/456.a.htm
hitori
medium-
10 10
1a11535868
7435a92166
a161314482
a778542923
a641193879
351486971a
92a26183a7
597949183a
43161785a1
23198a6274
