Mathematics is full of mysteries, but some are older than entire civilizations. The oldest unsolved problem in math has persisted for centuries, resisting every attempt to solve it. From the ancient ...
The Chosun Ilbo on MSN
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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