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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 ...
Network World

Tracking the world’s great unsolved math mysteries

Some math problems are as old as the wind, experts say and many remain truly unsolved. But a new open source-based site from the American Institute of Mathematics (AIM) looks to help track work done ...