Safe!

Gratuitous Gnome guards your guineas

Though it might have a Constantin sort of feel at first, this puzzle is actually made by Siebenstein-Spiele and designed by Jurgen Reiche. Like Constantin's Two Keys, you have a double maze to navigate. With this puzzle, however, you also have two pegs whose mobility is limited. There's a plexi layer and a 'wood' layer, both of which can rotate about the metal pen in the middle (aided by the bumpy bits that stick out from the puzzle). If you look closely, there's a coin-shaped hole in the plexi layer (around the 3 o'clock position) and a coin-shaped hole in the 'wood' layer (7 o'clock picture). The goal: first move the plexi layer so that the coin hole lines up with the coin, then move the plexi layer so that the two coin holes line up (and the coin drops to the 'wood' layer), then move the wood layer so that the coin falls through a hole in the bottom of the puzzle (9 o'clock position in the photo).

So: At first glance, the puzzle seems simple. Then you start to try things, and you realize that the mazes need to be rotated in tandem. You can say 'oh, the maze needs to be rotated so I can move the left peg inwards', but doing so requires several steps of planning in advance. Not that such planning is very difficult, because you can see the maze, but it is pleasantly frustrating because you can feel like you're almost there, or that the next move is simple, but you're always facing a new challenge that deceives you.

For the above reason, I quite like this puzzle. It's not quite as difficult as the Cast Medallion, where you can see what you need to do but you can never seem to actually do it because the moves are blocked so far in advance. There's just the right amount of blocking involved, so that you can 'almost' do the move you want to, and kind of have to do some (but not too much) wiggling around to get what you want. In general, though, I'm a fan of double mazes and peg mazes...