Hanayama Cast Puzzles are well-crafted metal puzzles that stand out not only for their exceptional quality but also for their extraordinary and high-quality design. The name 'Cast Puzzle' comes from the English term to cast, which means to mold metal.

The challenge of this intricate metal puzzle is to separate the pieces and then reassemble them.

Patented in America in 1965, this puzzle was originally created by Joseph L. Litle. The idea for this puzzle came to me after I played with a wooden copy made for me by my close, now-deceased friend, Tadao Muroi. The proportions have been significantly altered in this new version.

This puzzle is designed in the style of a violin and its strings, with the key word being... 'strings'.