% hitori 493 by Otto Janko, http://www.janko.at/Raetsel/Hitori/493.a.htm
hitori
easy+
10 10
7a42758339
7763955188
183829246a
316442a568
571683a145
1475aa5316
9284631a75
a686314425
2791576894
38285429a9
