% hitori 450 by Otto Janko, http://www.janko.at/Raetsel/Hitori/450.a.htm
hitori
medium-
12 12
59ac5933b141
8ab63c154229
44542cac1383
28595ab746a5
914a85b23b66
a69224c1715b
31c3a5712564
769bc6b4a822
a57b174c6822
b364a12c3a75
4cb8b3ba5b96
a535b86494c1
