Labyrinths
en.wikipedia.org
The term "labyrinth" is often used interchangeably with "maze", but modern scholars of the subject use a stricter definition. For them, a maze is a tour puzzle in the form of a complex branching passage with choices of path and direction; while a single-path (unicursal) labyrinth has only a single Eulerian path to the center. A labyrinth has an unambiguous through-route to the center and back and is not designed to be difficult to navigate.
Online Labyrinth
How to Play:
You play the white square (Up).
Use the arrow keys to move down through the labyrinth. 
The adversary (Black square), controlled by Macromedia Flash MX, will move up through the maze.
Click "Start" to begin.
