http://fizzlebot.com/gdc1/cgdc1.php?puzzleID=15Clack is a unique and original puzzle game created by Sean from Louisiana, USA.
At first glance the game appears to be a layout from a schematic diagram, which might easily scare you away if you're the non-technical type. And it will likely have you scratching your head wondering just what to do with it even if you are an electrical engineer. However, those adventurous souls that persevere, by poking around the surface to learn what is hiding underneath, will be nicely rewarded by what they find.