% hitori 538 by Otto Janko, http://www.janko.at/Raetsel/Hitori/538.a.htm
hitori
medium
12 12
a12c96143837
72823cc36b9a
999a535219c8
c356a2b76473
4762b292c358
13927856ba4b
2ab17a5c96a6
96a43c287989
8ac314394532
b3a84463869c
81784945a262
686bc1a33624
