Burr Puzzles A Burr Puzzle consists of at least three rods intersecting each other at right angles. The most famous and well-known type is the six piece burr where three sets of two rods intersect each other. Go >>	Interlocking Puzzles Interlocking puzzles have pieces that lock together to form a complete shape. Peculiar notches, ridges, or nubs arranged in a specific way are the only bonds that keep these complex shapes together. Go >>
Magnetic Puzzles These puzzles have magnets that aid in the cohesion of the shape. However, some of the magnetic puzzles also involve aligning magnetic polarities for another level of difficulty; it may look right, but if the piece is rejected you know its wrong. Go >>	Stackable Puzzles Stackable puzzles don't require anything but gravity once they're together. But you have to figure out how to get them together, first. Go >>
TessellationsNEW Seamless mosaics formed of repeating shapes are known as tessellations, a fascinating blend of mathematics and art. Go >>