% hitori 270 by Otto Janko, http://www.janko.at/Raetsel/Hitori/270.a.htm
hitori
medium
12 12
a685721a7b7c
a2b487814935
c97c659a2a83
49b2512ca28b
b91978a843c5
83cbc432158a
a783a3c4b462
98562a97cc54
7b2158639cb7
1a2cb685b877
68c351b349a9
143a9b865298
