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Korean researcher solves 60-year-old sofa problem

For nearly 60 years, the “moving sofa problem,” a long-standing mathematical puzzle, remained unsolved. Last year, a Korean ...
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S Korean mathematician solves 6-decade math puzzle

S. Korean mathematician solves 6-decade math puzzle Baek Jin-eon, a 31-year-old research fellow at the June E Huh Center for ...