% heyawake 304 by Iwa Daigeki, http://www.janko.at/Raetsel/Heyawake/304.a.htm
heyawake
unknown
14 14
+---+-----+---+---------+---+
|...|1....|2..|3........|2..|
|...|.....|...|.........|...|
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+---+-----+---+---------+---+
|3........|4..|4............|
+---+-----+...|.............|
|...|3....|...|.............|
|...|.....|...+---------+---+
|...|.....|...|4........|...|
+---+-----+...|.........|...|
|...|4....|...|.........|...|
|...|.....|...+---+-----+---+
|...|.....|...|...|.....|4..|
|...|.....|...|...|.....|...|
|...|.....|...|...|.....|...|
|...|.....|...|...|.....|...|
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+---+-----+---+-+-+-+---+...|
|3..|2....|2....|...|3..|...|
|...|.....|.....|...|...|...|
|...|.....|.....|...|...|...|
|...|.....|.....|...|...+---+
|...|.....|.....|...|...|2..|
+---+---+-+-----+...|...|...|
|1..|2..|3......|...|...|...|
|...|...|.......|...|...|...|
|...|...|.......|...|...|...|
+---+---+-------+---+---+---+
