I also thank one Andy Williams who was the first to develop a successful plank-puzzle solver. The dragon maze is an ingenious fractal maze design by Oskar van Deventer. Use the applet to drag the layers of interwoven lattice-work one at a time from left to right and watch the maze develop. The secret is the white areas of each layer are transparent, allowing underlying colours to show through. This applet required a small diversion back to the theory books to discover how to create an image with transparent areas.
Nothing is ever quite what it seems.
That wasn't so bad after all, and look at me, I'm even using GridBag layout now, like a pro. I only hope it works for the rest of you, because I'm not sure I trust a browser with a Java2 pop-up applet as far as I could throw an exception. I needed a small, non-graphical, challenge to test my new found skills. Oskar's four-bit mazes were perfect. If you manage to switch off all those lights just be careful not to fall over the furniture.