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 ...
The research of a Korean mathematician who solved the "Moving Sofa Problem," a mathematical conundrum that has remained unsolved for nearly 60 years, ...
Another most-viewed unsolved case of 2025 involves a double homicide that remains unsolved more than 20 years later in ...
Matthew Perry's death. Tropical Storm Hilary. A mass shooting at a Lunar New Year festival: These were some of California's ...
Carina Hong, 24, raised $64 million to build an AI mathematician that discovers new theorems and solves century-old problems.
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