This is my take on the classic Khun-Phaen puzzle. I built it with standard wood sizes so you should be able to find the materials at your local big box store. In addition, I've included STP and STL files (last step) for those that would like to print the puzzle. Puzzle in action: https://youtu.be/GYYeDpGqkjU Solution: https://youtu.be/gEBZHhcm0o0 More Info: https://www.instructables.com/id/Knun-Phaen-Klotski-Puzzle/ Similar Version to Purchase: http://amzn.to/2zX5Jk6 Puzzle Background: Khun Phaen was a leader in the Thia Legend. He wants to escape but is surrounded by 9 sentries. Objective: Free Khun Phaen (large square) Rules: Move the pieces without raising them off the board