% heyawake 157 by Halflength Sleeve, http://www.janko.at/Raetsel/Heyawake/157.a.htm
heyawake
medium
24 14
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+-+-+-----+---+---+---+-+---+.....|...+-----+---+
|3..|.....|7......|2....|...|.....|...|.....|2..|
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|...|.|...|.......|5....|...|...................|
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|.....+---+-------+-----+---+-+...|...+---------+
|.....|2..|2..................|...|...|.........|
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+-----+---+.....|.........|...+---+---+-----+---+
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+-----+...+-----+---+-----+...|.......|.....|...|
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|.....|...|.....|...|.....|...+---+---+-----+---+
|.....|...|.....|...|.....|...|...|2............|
+-----+---+-----+---+-----+---+---+-------------+
