% heyawake, nikoli sample problem 7 by OX
heyawake
medium
24 14
+---+-------+-----+---+---+---+-----+---+---+---+
|2..|3......|2....|0..|...|2..|.....|1..|...|...|
|...|.......|.....|...|...|...|.....|...|...|...|
|...|.......|.....|...|...|...|.....|...|...|...|
+---+-------+-----+---+...|...|.....|...|...|...|
|3..|4......|4....|2..|...|...|.....|...|...|...|
|...|.......|.....|...|...+---+-----+---+---+---+
|...|.......|.....|...|...|3..|4....|0..|...|3..|
|...|.......|.....|...|...|...|.....|...|...|...|
|...|.......|.....|...|...|...|.....|...|...|...|
|...|.......|.....|...|...|...|.....|...|...|...|
|...|.......|.....|...|...|...|.....|...|...|...|
+---+-------+-----+---+...+---+-----+---+---+---+
|1..|.......|.....|0..|...|1..|.....|4......|1..|
|...|.......|.....|...|...|...|.....|.......|...|
|...|.......|.....|...|...|...|.....|.......|...|
+---+---+---+-----+---+...+---+-----+-------+---+
|2..|1..|...|5....|...|...|...|5....|4......|3..|
|...|...|...|.....|...|...|...|.....|.......|...|
|...|...|...|.....|...|...|...|.....|.......|...|
|...|...|...|.....|...|...|...|.....|.......|...|
|...|...|...|.....|...|...|...|.....|.......|...|
+---+---+---+-----+---+...|...|.....|.......|...|
|0..|...|...|3....|...|...|...|.....|.......|...|
|...|...|...|.....|...|...+---+-----+-------+---+
|...|...|...|.....|...|...|1..|3....|2......|1..|
|...|...|...|.....|...|...|...|.....|.......|...|
|...|...|...|.....|...|...|...|.....|.......|...|
+---+---+---+-----+---+---+---+-----+-------+---+
