Quartet consists of two interlocked square-shaped polished metal puzzle pieces that come apart into four pieces. The object is to separate the interlock into four square shaped pieces. This is a very tricky puzzle and one of the most challenging...

This brain teaser is a great challenge for anyone who enjoys mechanical style take-apart challenges. Solving the puzzle is somewhat similar to solving a paper maze with pencil. There small nubs on the outer ring. This allows it to move...

The three pieces of this challenging cast metal brainteaser puzzle each have a spiral body. When assembled, the pieces form a unified flat object. In order to undo this complex entanglement, it will be necessary to unbind them three-dimensionally. Here's...

This puzzle is created from two each of two types of pieces. With a scrupulously calculated design and tricky movement of the pieces, this will not be an easy puzzle to solve. Designed by Korean designer JinHoo Ahn. Taking it...

Though inspired by a budding Morning Glory, Helix is no gentle flower. The twining tendrils of this puzzle feature engraved grooves on two rotating spirals. The grooves cross at right angles, creating square holes at their intersection points. Can you...

Hanayama Huzzle Cast Infinity has a difficulty of level 6 Can you take the infinity symbol apart? Can you put the infinity symbol back together again? It seems that this puzzle was called infinity because of its appearance. But it...

This puzzle consists of 4 pieces that are combined to form a square. … Will you be able to take it apart? What’s more, these pieces have a secret: each time their arrangement is changed when recreating the original shape,...

A tricky brain teaser puzzle that requires a lot of concentration and careful approach. Rated as a level 6 difficulty, pieces are distinguished by either one, two or three dots on the end. Unique in that it can be re-assembled...

A masterpiece by metal smith Akio Yamamoto, the key word for this puzzle is “love”. The two separate, linked loops make this puzzle extremely challenging. The objective is to remove the masterfully united “Adam” and “Eve” loops from the metal...