% hitori 328 by Otto Janko, http://www.janko.at/Raetsel/Hitori/328.a.htm
hitori
medium
12 12
a22156b7c978
5ac88b742196
61263846b585
5582bc315765
95b67846a524
b86ca2295379
4b19c785cc1b
c7581a1b3a42
267b4319653a
279645184b73
934883766aca
149521671aac
