That Wikipedia article has a nice picture comparing the two shapes which shows how they’re more complex than you’d think. https://en.wikipedia.org/wiki/File:Ge

That Wikipedia article has a nice picture comparing the two shapes which shows how they’re more complex than you’d think. https://en.wikipedia.org/wiki/File:Gerver%E2%80%99s_and_Hammersley%E2%80%99s_sofa_overlap.svg https://en.wikipedia.org/wiki/File:Gerver%E2%80%99s_and_Hamm...