% hitori 290 by Otto Janko, http://www.janko.at/Raetsel/Hitori/290.a.htm
hitori
hard-
12 12
b854c38a1976
3cc748289aaa
a3164b857c92
b272319683c9
413837c23ab5
629a16535587
2a639151a843
5b8b793225b4
14679cb246b8
9cab2c47c31c
6962a5ac7621
673ab714225c
