Henry Ernest Dudeney/Modern Puzzles/155 - Marking a Tennis Court

by : $155$

 * Marking a Tennis Court
 * The lines of our tennis court are faint and want re-marking.
 * My marker is of such a kind that, though I can start anywhere and finish anywhere,
 * it cannot be lifted off the line when working without making a mess.
 * I therefore have to go over some of the lines twice.
 * Where should I start and what route should I take, without lifting the marker,
 * to mark the court completely and yet go over the minimum distance twice?
 * I give the correct proportions of a tennis court in feet.


 * Dudeney-Modern-Puzzles-155.png


 * What is the best route?