% heyawake 171 by Halflength Sleeve, http://www.janko.at/Raetsel/Heyawake/171.a.htm
heyawake
easy+
10 10
+-+---+-----+---+---+
|3|...|3....|2..|1..|
|.|...|.....|...|...|
|.|...|.....|...|...|
|.|...|.....|...+---+
|.|...|.....|...|2..|
|.+---+---+-+---+...|
|.|...|...|.....|...|
|.|...|...|.....|...|
|.|...|...|.....|...|
+-+-+-+---+-----+---+
|...|4....|.....|3..|
|...|.....|.....|...|
|...|.....|.....|...|
+---+.....|.....|...|
|...|.....|.....|...|
+---+-----+-+---+---+
|...|.....|.|2..|1..|
|...|.....|.|...|...|
|...|.....|.|...|...|
+---+-----+-+---+---+
