The Dodecagon Dilemma is a very challenging puzzle where the aim is to try and match each adjacent number on the discs.
Dodecagon means twelve sided and this puzzle has twelve wooden 2 inch discs, each with twelve numbered sides.
You can rotate them round and then see if you can match up all adjacent numbers but this is a seriously challenging puzzle!
The puzzle measures roughly 241 x 203mm including the base and cover.
The solution is included along with four hints that are stapled shut so you can look at these clues progressively rather than jumping straight to the full solution.