% heyawake 273 by Toonkigou, http://www.janko.at/Raetsel/Heyawake/273.a.htm
heyawake
unknown
10 10
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|...|3....|...|4....|
+---+.....|...|.....|
|2..|.....|...|.....|
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|...+-----+---+-+---+
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+---+-----+.....+---+
|3..|2....|.....|2..|
|...|.....+-----+...|
|...|.....|3....|...|
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+---+---+-+---+-+-+-+
|2..|1..|2|...|3..|.|
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+---+---+-+---+---+-+
