There’s a really strong family resemblance here – there’s the familiar wooden case and shackle, this time in oak, and the big acrylic window taking up almost the entire front of the puzzle. Everything is on display, right?

A quick wiggle of the shackle shows that it’s firmly held in place on the left by a large ball bearing and several oddly-shaped bits of wood seem to be holding the right hand side in place. There’s a stray brass ball floating around the middle of the lock and a vast number of carefully shaped little wooden obstacles getting in the way of that ball and indeed of one another.


There’s a tool that can be used o manipulated some of the bits and pieces inside, but form the start there’s almost nothing that can actually be done… so the first order of business sis to find out what’s stopping you from doing anything…