This project is a Grails implementation of the Advent of Code puzzles, written by Eric Wastl. You can find the puzzles (or could when I was working on them) at: http://adventofcode.com/ Each day of Advent contained two puzzles. I wrote a service for each day and included a Specification of tests for that day's puzzles. You can find more code from me on my Github page: https://github.com/tomwallace