% heyawake 277 by Toonkigou, http://www.janko.at/Raetsel/Heyawake/277.a.htm
heyawake
easy
10 10
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+---+.|...|.....|...|
|0..|.|...|.....|...|
|...|.|...+-----+---+
|...|.|...|4....|...|
|...|.|...|.....+---+
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|3|0..|...|.....|...|
|.|...|...+-----+---+
|.|...|...|3........|
|.+---+-+-+.........|
|.|4....|.|.........|
|.|.....|.+-----+---+
|.|.....|.|.....|2..|
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|.|.....|.|.....+---+
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+-+-----+-+-----+---+
