Bakuba children of Zaire can draw these patterns in the
sand without lifting a finger. Business people call these figures networks.
They decide which networks are possible and which are impossible to complete
in order to plan delivery routes.
All of these networks are possible to complete if
you start in the right spot*. After you trace them with your finger, see
if you can redraw them on a piece of paper.
Object of the game: Draw a pattern without lifting
your marker or retracing any lines. Crossing lines is permitted. The smallest
one has been done as an example.
*Hint: The starting point and the ending point should be where an
odd number of lines meet. Before you draw, locate these two places.