Martin Puzzle

thingiverse

This puzzle is one I found when I was learning machining. It has 6 pieces and 2 solutions, depending on if you replace the 6th piece with a variation called the "Cheater's piece". The first solution involves separating the 6 pieces into two "halves" and interlocking them. The second is simply assembling the 5 "normal" pieces and then sliding the cheater's piece into the last place.