% hitori 410 by Otto Janko, http://www.janko.at/Raetsel/Hitori/410.a.htm
hitori
hard-
12 12
124a8468598a
445192a83c37
976b3c23415a
a83816c437b9
2ca4619cc653
a928615a3414
3466a99cb845
752688b918a9
438bca29b544
81bc6b799332
159345168b7c
5b227748629c
