% heyawake, nikoli sample problem 5 by Ogawa Minori
heyawake
medium
18 10
+---+---+---+---+-----+-+---+---+---+
|2..|...|...|3..|2....|.|3..|0..|...|
|...|...|...|...|.....|.|...|...|...|
|...|...|...|...|.....|.|...|...|...|
+---+-+-+---+...+-----+.|...+---+...|
|1....|1....|...|2....|.|...|...|...|
+---+-+.....|...|.....+-+---+...+---+
|...|.|.....|...|.....|2....|...|3..|
|...|.+-----+---+-----+-----+...|...|
|...|.|.....|3..|3....|.....|...|...|
|...|.|.....|...|.....|.....|...|...|
|...|.|.....|...|.....|.....|...|...|
+---+-+-----+...|.....+-+---+---+-+-+
|2....|2....|...|.....|.|1..|4....|2|
+-----+.....+---+-----+-+...|.....|.|
|.....|.....|0..|.....|2|...|.....|.|
|.....+-----+...|.....|.|...|.....|.|
|.....|.....|...|.....|.|...|.....|.|
+-----+.....|...|.....|.|...|.....|.|
|2....|.....|...|.....|.|...|.....|.|
+-----+-----+---+-----+-+---+-----+-+
