stingin two squares connected by a curve
Source: Mongolian MO 2002 Teachers P6
April 9, 2021
geometrygame
Problem Statement
Two squares of area are given. Each of the squares is divided into connected pieces of unit area by simple curves. Then the two squares are patched together. Show that one can sting the patched squares with needles so that every piece of each square is stung exactly once.