Puzzle Circuit

The switch of the project was built out of 24 pieces of a jigsaw puzzle. The LED won't turn on unless the puzzle is solved. Each piece of the puzzle board is connected to the following piece. Strips of aluminum were used to connect all the 24 pieces and send electricity. The board's system follows a specific pattern that dominates all of the 24 pieces to work together as a one-piece to turn on the LED.  If the board is missing a piece, the LED will remain cut out. I built this system to illustrate that a simple game could be more attractive in combining electricity to it. I see that this technique might be useful while building a thousand pieces of a puzzle to know either the board is complete or not. I also can see a future possibility of building a similar system that could be programmed/built to calculate how many pieces are placed and how many pieces are left. A particular color of LED will represent an output of the calculation, and the other result will be given in a different color.

Circuit diagram

The actual circuit

The backside of the puzzle (switch)

shows how the pieces are connected.