U&U Hanayama Cast Metal Puzzle

$10⁸⁸

U&U sits on the bench here as solid cast metal with a hidden movement inside. Two U-shaped bolts and four nuts - this looks like a combination of spare parts but looks are deceiving. The halves part in one order only, and the order is the whole trick.

• This puzzle comes with a deviously hidden trick.
• The key to unlocking these parts is to look carefully at each part first.
• U & U was puzzle of the year at IPP 2014 in London, U.K.
• Rated level 4 on our six-step ladder, so you know the sit before you start.
• Small enough for a coat pocket, heavy enough to feel solved.