Traveling Salesman Problem: The World's Most Challenging Puzzle

The Traveling Salesman Problem (TSP) is currently unsolved. It's used in encryption technology. And featured in my technothriller, Elixir. You can grab your copy on Amazon, where it's available for Kindle (including Unlimited), paperback, and audio:

http://www.tedgaldi.com/elixir.html

#Shorts