% hitori 294 by Otto Janko, http://www.janko.at/Raetsel/Hitori/294.a.htm
hitori
medium-
10 10
9323637a48
8749143452
3367927989
4283395a71
2553376849
456a239a13
15a3742596
54969a1523
63364221a6
1a12988365
