Known as the Moving Sofa Problem, this brain teaser asks a deceptively simple question: What’s the largest sofa you can fit around a 90-degree corner ... an elaborate U-shaped figure composed ...

What is the largest sofa that you can squeeze around the corner of a hallway? A horseshoe-shaped piece of furniture ... We'll also keep you up to date with New Scientist events and special offers.

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. Finding a sofa that’s in equal parts comfortable as it is ...