But to our theorem. Give it a try oneself! You will see that all you fold (provided it lies flat) will need just two color so you can colour in the regions for the their crease pattern.

Listed here is a method to view it: fold a thing that lays flat. Now color the nations against near you red and you will the ones against the fresh desk bluish (ensure that you simply colour you to definitely area of the papers). When you unfold, you will notice that you really have a genuine dos-coloring!

Alerting. which point becomes difficult!