The Chosun Ilbo on MSN
South Korean Solves 60-Year Sofa Problem
A South Korean researcher who solved the ‘moving sofa problem,’ a mathematical puzzle that had remained unsolved for nearly ...
Korea JoongAng Daily on MSN
Korean mathematician solves decades-old 'moving sofa problem'
A 31-year-old Korean mathematician solved one of the oldest math puzzles and was recognized as one of Scientific American’s ...
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