This is another of our favourites. The Cast Spiral sits beautifully in the hand, and presents the puzzler with a serious battle between simplicity and complexity. At first glance the Spiral puzzle seems quite simple, but it soon becomes clear that there is far more to this puzzle than first meets the eye! It is possible to take the five pieces apart, and honestly, it is also possible to reassemble them, although this throws up a whole new set of problems! My suggestion for solving this puzzle would be to not apply too much pressure! Designed by Ken Walker.