Explore the Tesla Puzzle Box, a popular Kickstarter project that challenges players with clever design and brain-teasing ...

Not only do his varied puzzle box designs show his math background, but they are all made entirely of wood. There are no nails or fasteners; just intricately-fitted wood and some glue.

As far as I can tell, this genre was invented by British puzzle-maker Hubert Phillips in the 1930s. In a version of this type, we are given three boxes on which labels are attached.

At kitchen tables, bedroom desks and on the floor, they sit anxiously with their boxes, waiting for the signal. Inside, a 500-piece puzzle – and the chance to win the Canadian Jigsaw Puzzle ...

$29.99 save 52% $14.39 at Amazon 1000 Pieces theory11 Lord of The Rings Jigsaw Puzzle 6 $24.95 save 20% $19.96 at Amazon ...