The moving sofa problem, which deals with the math of how shapes can fit around corners, may have been solved by a Korean mathematician. UC Davis mathematician Dan Romik has made a study of the ...

In a scene from the classic sitcom, "Friends," the characters Ross, Rachel and Chandler struggle to heft a new couch up the stairs of their apartment building. As they try to get the sofa around the ...

A Korean mathematician has solved one of geometry’s most stubborn puzzles, ending a problem that has challenged researchers for nearly 60 years and earning global recognition for a proof achieved ...

The research of a Korean mathematician who solved the "Moving Sofa Problem," a mathematical conundrum that has remained unsolved for nearly 60 years, has been recognized as a global achievement. On ...

Most of us have struggled with the mathematical puzzle known as the "moving sofa problem." It poses a deceptively simple question: What is the largest sofa that can pivot around an L-shaped hallway ...