% hitori 221 by Jak Marshall, http://www.janko.at/Raetsel/Hitori/221.a.htm
hitori
medium-
10 10
25b612a479
535b876419
756ab83429
1b89a44765
6b95aa42b4
b277615488
371a866557
a932358331
11287996aa
11425998a6
