Other Permuatation Puzzles
Sliding Tiles in 3D
These puzzles (except the right-hand pen below), all have an empty space in which to move a tile. In this way they actually form three-dimensional versions of the sliding tile puzzles.
Puzzle Pens
The Missing Link
Whip-it!
For the puzzler who has everything.
At last, we have found it!
... and whip it good!
