% hitori 247 by Otto Janko, http://www.janko.at/Raetsel/Hitori/247.a.htm
hitori
hard-
12 12
721c33576848
1b237a43a86b
93b61cc1a5a4
374336b25696
8c85a21b4427
289a4b9681c3
a314a7622a85
7a8761945b23
56a264797a1c
4ac7813711b3
b4a9a87c5231
725819184c26
