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Over at The Guardian, mathematician Alex Bellos has an article series in which he asks readers to send their solutions to a weekly puzzle. That sounds innocent enough, but this week's installment might have caused architects to double-take: inspired by a reader who remembers it from his days as an architecture student, solving Monday's puzzle suggests that a reader is "smarter than an architect." The puzzle itself looks somewhat like a child's block puzzle. Three holes—a square, circle, and triangle—are presented. But unlike a child's puzzle, in which you'd normally have square, circular and triangular blocks that fit the holes, the challenge here is to visualize a single block which would fit perfectly through all three holes. "Architects will surely find the answer obvious," explains Bellos. "The heads of the rest of us will look rather like the house in the picture above [the original challenge article features a photo of an inverted house], since it requires you to visualize an object in three dimensions, which is a challenge if your brain isn’t trained to do it." View more View full description
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