Level 4

The Infinity Puzzle earns its name for both style and mechanics. Not only do the pieces resemble the sign for infinity (a horizontal 8), but their motion continues in an...

The object of this ingenious, cast metal puzzle is to separate the two interlocked loops and remove them from the surrounding planet-like structure. Afterward, can you piece it back together?...

The Instant Insanity Puzzle is three puzzles all in one compact unit, and it certainly lives up to the name! Think of the puzzle like a broken Rubik's cube -...

A modern puzzle, the Cyclone is a four-piece, cast metal disentanglement puzzle from Hanayama, released in 2021. In this puzzle, each piece interlocks with the other three in a cyclonic...

Can you separate the five pieces of the 3D jigsaw and then meld them back together again? At first glance, the pieces do not seem as though they are unlockable. ...

A great metal puzzle by Yoshigahara. Start by taking the puzzle pieces apart, then figure out how to put them back together and restore the puzzle to its original state....

This mind-boggling Ball in Jail Puzzle consists of 12 non-identical pieces and one tiny ball! The main goal is to free the wooden ball from its cage; it starts trapped...

The Tube puzzle was designed by Vesa Timonen, and consists of 3 parts. The objective is to disassemble the puzzle and then put it back together. Consider every possible method...

This 12-piece Altekruse Puzzle forms the asymmetrical shape of an abstract cube - the unique design is truly admirable compared to puzzles of the same caliber. Altekruse means “old cross”...

Burr puzzles have been confounding avid puzzlers for centuries, and there are many iterations that all relate back to the basic idea of an interlocking puzzle. The IX Burr Puzzle,...

Another great puzzle by Oskar van Deventer. The H&H puzzle is made out of two pieces shaped like the letter H. The goal of the H&H puzzle is to take apart the...

This beautiful Tavor interlocking puzzle now comes in a keychain, so you can take this remarkable mini puzzle everywhere with you and surprise your friends. This remarkable interlocking puzzle is...

This exquisitely designed Notch Puzzle is a 13 Piece Burr that seems to have no way to break in; the pieces fit seamlessly together with no cracks or openings! Interlocking...

For all the broken souls out there, here is your (metaphorical) chance to repair your heart for good! The Broken Heart String Puzzle requires you to exercise patience and caution...

The 3 Posts disentanglement puzzle requires the puzzler to exercise patience and caution, with a fun twist! The objective of the puzzle is to figure out how to move the...

The Falling Star Puzzle is made of nine interlocking, wooden pieces. This moderately difficult puzzle will keep adults and children entertained for hours, but not long enough to give up!...

The remarkable interlocking Tavor Puzzle is made of 12 non-identical pieces and one tiny ball! The 12 pieces fit together seamlessly to form a wooden cage that traps the ball...

33 Peg Solitaire is a legendary strategy game for one player. The objective is easy to explain: can you remove all of your pegs from the board, leaving only one?...