The object is to assemble a set of specific pieces into a
certain solid interlocking them, or disassemble such a solid.
Bill Cutler Puzzles, Inc.
Bill Cutler is one of the World's greatest
puzzlers who combines math, puzzle designing and computer programming.
This gave an astonishing collection of box-filling and burr puzzles;
any of them is a puzzle and math gem itself. Bill's website proposes
you all these fantastic puzzle creations!
Burr puzzles are well known to all puzzlers. The most
famous type is the six piece burr with three pairs of rods
intersecting each other at right angles. At this site you may explore
this type of burrs. You can even select six pieces of your own making
and then get the possible solutions for them!
At his site Jürg presents
nice interlocking puzzles his wife Karin and he have made themselves
as well as some puzzles from their collection which they like very
much. Where possible some of the puzzles have solutions, plans and
hints on how to make your own.
A pretty nice site with a fantastic collection of different puzzles from one of the best puzzle creators Junichi Yananose. Many of his puzzles are fiendishly difficult, and are provided with great animated solutions.