Mathematician finally solves infamous moving sofa problem popularised by Friends ‘pivot’ scene

Dr Baek Jin Eon, 31, a research fellow at the Korea Institute for Advanced Study, has demonstrated that no shape larger than ...

Those with the highest IQ can crack this infamous maths puzzle

The problem is named after Flavius Josephus, a Jewish historian and leader who lived in the 1st century. According to Josephus's firsthand account of the siege of Yodfat, he and his 40 soldiers were ...