% hitori 455 by Otto Janko, http://www.janko.at/Raetsel/Hitori/455.a.htm
hitori
medium-
10 10
68525597a3
3965628a19
4354861aa1
2a91724835
3278414548
619967528a
7218a16555
97861a5342
82936321a4
4584292676
