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Difficulty Level 4

Brain teasers are a fun was to keep yourself or someone else occupied as well as their brains active. Our selection of brainteasers are all different and make great gifts or stocking stuffers. While these puzzles are sure to test your skills, some of our most popular brainteasers like the Century Cube II are in the cateogory up, Level 5.

Difficulty Levels are out of 6, with 1 being the easiest and 6 being the most challenging.

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Color Match Triangles

Unit Price: $9.99

Try to insert the triangle pieces such that each adjacent dot is the same color. Quite difficult. Dimensions: 5.75" x 5" x .75" Difficulty level: 4 (out of 6) Click here for a video

Crazy Four (Large)

Unit Price: $7.99

Nice package containing 4 cubes with 4 different colors on the 6 sides. The object is to arrange them in the holder such that there are 4 different colors along the length. Its a puzzle patented in ... Read More »

Devils Chessboard

Unit Price: $17.99

A puzzle design by William Stijbos of the Netherlands. It was the winner of the prestigious Himiki Puzzle competition in Japan in 1990. Features 16 wooden puzzle pieces, consisting of white and dar ... Read More »

Haselgrove Box

Unit Price: $18.99

The Haselgrove box is a unique puzzle based on the locking mechanisms of the Egyptian pyramids. The object is to "open" the box. There are a series of moves you will need to make to relea ... Read More »

Nightmare Box

Unit Price: $11.99

Can you get the four blocks out of the box - and then get them back in? An interlocking puzzle that you must essentially solve blind as the pieces move within the box! If you can solve this one wit ... Read More »

Packing Predicament

Unit Price: $12.99

Fit the 6 pieces back into the box. Looks like a reasonable challenge, but it may be not so easy! In fact, this is a quite difficult level 4 puzzle. Its the kind of puzzle that anyone can attack an ... Read More »

Tower Hanoi - 9 ring (Large)

Unit Price: $16.99

A challenging and beautiful puzzle devised in 1883 originally called Tower of Brahma and later Tower of Hanoi. Can you move the tower to one of the other 2 pegs without e ... Read More »

Twist and Shout

Unit Price: $15.99

This is like a Rubik's cube in a way, as you must turn the inner cylinders to align the balls to the same color. It appears to be approx as difficult as the Rubik's cube - VERY difficult. I ... Read More »

Wine Barrel (Medium 2-tone)

Unit Price: $11.99

Solving may be harder than making fine wine! A Classic puzzle from the early 1900's. Related to the diamond cube puzzle, it comes apart into 12 pieces. Quite difficult to get back together. Use ... Read More »

Wine Lovers Puzzle

Unit Price: $23.99

Beautiful to look at and very difficult to solve if you have never seen how the pieces go into the frame, this Wine Lover's picture frame puzzle is cut from 1/4" maple and fit into a 7&quo ... Read More »