% heyawake 294 by Tom Collyer, http://www.janko.at/Raetsel/Heyawake/294.a.htm
heyawake
medium-
10 10
+---------+---------+
|1........|4........|
+---------+.........|
|1........|.........|
+-------+-+---------+
|3......|2|3........|
|.......|.|.........|
|.......|.|.........|
+-------+.+---------+
|4......|.|0........|
|.......|.+---------+
|.......|.|2........|
|.......|.|.........|
|.......|.|.........|
+-----+-+.+---+-----+
|2....|.|.|...|.....|
|.....|.|.|...|.....|
|.....|.|.|...|.....|
|.....|.|.|...+-----+
|.....|.|.|...|1....|
+-----+-+-+---+-----+
