% heyawake 247 by Mokuani, http://www.janko.at/Raetsel/Heyawake/247.a.htm
heyawake
easy+
10 10
+-----------+-------+
|2..........|3......|
+-------+---+.......|
|3......|4..|.......|
|.......|...+-------+
|.......|...|3......|
|.......|...|.......|
|.......|...|.......|
+-----+-+...+---+---+
|2....|.|...|...|3..|
|.....+-+---+...|...|
|.....|.....|...|...|
|.....|.....|...|...|
|.....|.....|...|...|
+-----+---+-+-+-+...|
|4........|3..|.|...|
|.........|...|.+---+
|.........|...|.|...|
+---------+...|.|...|
|.........|...|.|...|
+---------+---+-+---+
