This little beauty is another classic Jos Bergmans 4x4x4 interlocking puzzle cube. It's the first puzzle by Jos that I tried and it's definitely still one of my favourites. The difficulty level is 18.104.22.168.2 (one move to get the first piece out, two for the second, five for the third and so on) but includes rotations.
This puzzle consists of six pieces including a couple of unusual ones. The largest piece looks like an almost complete loop bent to 90 degrees in the middle. Clearly some of the other pieces will have to go through this loop. The second largest piece has a long shaft with a square block at one end and a larger L shaped block at the other end. This is the elevator. I would love to show you how this puzzle works but that would spoil the delicious 'aha' moment you'll get when you work out how everything fits together.
My hollow design is based once again on 8mm unit cubes giving a 3.2 cm puzzle. The fit is snug to begin with but will loosen a little with use to the point where it should just hold together nicely.
Buying a copy of this puzzle entitles the owner to access a secret video on YouTube providing the full solution.
Model developed by Richard Gain. Puzzle designed and licensed by Jos Bergmans (2010).