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 ...
The research of a Korean mathematician who solved the "Moving Sofa Problem," a mathematical conundrum that has remained unsolved for nearly 60 years, ...
A Korean mathematician has won international recognition for solving a geometry puzzle that had resisted proof for nearly six ...
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