Genetic Programming - "Santa Fe Trail" problem

The "Santa Fe Trail" problem solved automatically using Genetic Programming and the GP.Lab toolkit (tinyurl.com/gp-lab2). From Wikipedia: "The Santa Fe Trail problem is a Genetic programming exercise in which Artificial Ants search for food pellets according to a programmed set of instructions. The layout of food pellets in the Santa Fe Trail problem has become a standard for comparing different genetic programming algorithms and solutions." The best programs for various stages of the simulated evolution leading towards the perfect solution are demonstrated. Soundtrack: theAudiologist, Opasenye (http://freemusicarchive.org/music/theAudiologist/Idios_Kosmos/07_-_Opasenye) [Honk if you like Virtual Ants]