```                  LARRY
No... it's a puzzle.

And he assembles the pieces --

LARRY (cont'd)
Six piece puzzles dating from the
that assembles into the form of a
seed burr --

-- into a remarkably snug-fitting BURR PUZZLE --

CHARLIE
(spitballing)
Bill Cutler proved that there are 25
possible notchable pieces to make
solid six-piece burrs -- and they can
be assembled 314 ways...

EDGERTON
Great -- he's not a psycho, he's a
puzzle fan --
```

# 3D Dissection Puzzle »

This 3D dissection puzzle requires sequential assembling of its parts. The red, green and blue solids are rotated instances of the same shape. They have to be assembled first before the two rotated versions of the second shape shown in cyan and magenta can be attached. The gray shape is the corner stone which completes the puzzle. Rotate the cube to see the puzzle and its pieces from different angles.
```                  DON
He's all about symbols -- metaphors --

Don turns to the plasma -- starts FAST FORWARDING through the
Duryea interview --

LARRY
A Burr has a key piece -- if you pull
it out --

LARRY pulls one piece -- and the PUZZLE COLLAPSES AGAIN.

LARRY (cont'd)
-- everything falls apart.
```

# Touching Planar Polycubes »

A planar polycube is a polycube that can be placed in such a way that it extends only one cube high into the third dimension. For each known integer n, here are the smallest known planar polycubes such that n congruent copies all touch each other. This problem area is far from fully analyzed or understood and you might well find better solutions than the ones presented here.