Lucas's Puzzle: This puzzle was invented in the late nineteenth century by Edouard Lucas, a French mathematician. The object is very simple. You are given a pattern, two sets of colored markers, with an empty space in the middle. You have to reverse the pattern. Just to keep it interesting, there are a few rules on how you can go about this. The markers can only be moved in one direction, red markers toward the right, and blue marker toward the left. Second, a marker can only be moved to the empty space by either sliding it over to the adjacent square, or by jumping over one other marker.
