% hitori 539 by Otto Janko, http://www.janko.at/Raetsel/Hitori/539.a.htm
hitori
medium
12 12
969bc45ab38b
83b4b24ca976
52346ca488b7
2ca9a6ba145b
b2617cc5b148
97925861b9c3
918a2c36564c
aa751468227b
c247aaa38c6c
1b1584261c9a
4a28a5976a1a
2417a35bc972
