% hitori 250 by Otto Janko, http://www.janko.at/Raetsel/Hitori/250.a.htm
hitori
medium
12 12
143876bb29a3
568393624bc7
363934415228
21b8c8497a76
9c17a21a3289
854a2b63c517
985818a443b3
67611894c275
3a74658cc398
a2666984714b
439b5327a638
152a8735b15a
