For those who have wrestled a bulky couch around a tight corner and lamented, “Will this ever get through?” mathematicians have heard your pleas. Geometry’s “moving sofa problem” asks for the largest ...
A mathematician at Yonsei University, in Korea, claims to have solved the moving sofa problem. Jineon Baek has posted a 100+-page proof of the problem on the arXiv preprint server. Most people who ...
Organizational strategies that help students break complex word problems into manageable chunks may be the key to solving them, according to a 2025 study.