The moving sofa problem
What is the largest planar shape that can be moved around a right angled corner of unit width? This problem, first posed by Leo Moser in 1966, is an unsolved problem in geometry, known as the moving …
What is the largest planar shape that can be moved around a right angled corner of unit width? This problem, first posed by Leo Moser in 1966, is an unsolved problem in geometry, known as the moving …