PPT Slide
A “Snake” is a closed path (loop) through an N-space cube.
But, the path must follow one special rule.
You must understand that rule in order to create valid snakes.
The green lines form a valid 3-space snake of length 6.
Notes:
Actually, we will be looking for maximal length paths called Great Snakes. But I will probably get lazy and refer to the Great Snakes as just snakes.