% heyawake 12 by ?, http://www.janko.at/Raetsel/Heyawake/012.a.htm
heyawake
easy+
10 10
+---+-+-------+-+---+
|...|.|5......|.|...|
+---+.|.......|.|...|
|3..|.|.......|.|...|
|...|.|.......|.+---+
|...|.|.......|.|0..|
|...+-+---+---+-+---+
|...|.....|.....|...|
+---+.....+-----+...|
|...|.....|5....|...|
|...|.....|.....|...|
|...|.....|.....|...|
|...+-----+.....+---+
|...|.....|.....|...|
+---+-+---+---+-+...|
|...|.|4......|.|...|
+---+.|.......|.|...|
|2..|.|.......|.|...|
|...|.|.......|.+---+
|...|.|.......|.|...|
+---+-+-------+-+---+
