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one of the hardest puzzles I've ever done!! The Land of Waldos (550) pieces : r/Jigsawpuzzles
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World's Most Difficult Puzzle. Both sides have the same picture except the back is turned 90°. It's by far the hardest puzzle that I have ever done. I glued it because I
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The hardest puzzle I've ever done. Over-Bored, Helicoid, 1000 pieces. : r/Jigsawpuzzles
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