On this exchange I expected something straightforward: a Rubik's cube, a regular jigsaw puzzle, but what I got was well beyond what I ever thought. The cast puzzle my Secret Santa got for me is great... It is a cast cilinder formed by several pieces. I've been toying with it for several hours and I haven't been able to solve it completely. The second goal of the puzzle is also to assemble it again! I want to publicly thank my Secret Santa, whoever you are for this great gift. Thank you very very much.