Designed by Mine Uyematsu, a renowned puzzle creator who has contributed several innovative designs to the Hanayama cast series, the Cast Cage puzzle is part of Hanayama's long-standing tradition of producing high-quality metal puzzles. Inspired by traditional mechanical puzzles that date back centuries, this puzzle combines elegant design with intricate problem-solving, offering a satisfying experience once solved. Rated at a difficulty of 3 out of 6 on the Hanayama scale, it strikes a balance between accessibility for beginners and a good challenge for experienced puzzlers. Hanayama, known for its craftsmanship and unique puzzle mechanisms, has been producing puzzles since the 1930s. The inspiration for the Cast Cage may have stemmed from classic disentanglement puzzles, where the goal is to separate two or more objects that appear locked together. The design cleverly manipulates the perception of space, requiring solvers to look at the puzzle from various angles.