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 ...
In the second of a two-part examination of modern Ukrainian ideas and identities, Canadian scholar Bohdan Krawchenko ...
YouTube on MSN
4 weird unsolved mysteries of math
There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like ...
NPR's Ayesha Rascoe plays the puzzle with KNPR listener Calvin Siemer of Henderson, Nev., and Weekend Edition Puzzlemaster ...
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