LoopCast Puzzle Level 1 Created by the young Finnish puzzle designer Vesa Timonen. Vesa Timonen has come up with an endearing Cast Puzzle based on an original Puzz-Ring he created for his girlfriend. One of the appeals of this puzzle is that it can double up as an accessory when the two parts have been perfectly fitted together. Finished with a simple yet unique design. The key word is “Synthesis”.Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 4 puzzles are considered challenging by most puzzlers.