Maze for Free the Key Puzzle
Kenneth Caviness · The Mathematica Journal · 2011
The author has written a series of guided tours showing how to visualize and solve puzzles programmatically, creating animated visualizations, showcasing various programming tricks and algorithms, and using some good old-fashioned physics problemsolving strategies with an occasional foray into abstract mathematics. Here the “Free the Key” puzzle is solved and animated together with basically equivalent (read isomorphic) alternative representations.