You are standing in the very corner of a 10 X 10 grid of dots. How many different ways are there to get to the opposite corner of the grid? You must travel through every node once, and only once. You cannot travel diagonally, and you may not go outside of the overall perimeter.
(In reply to
Clarification  continue by Jonathan Chang)
Jonathan Chang, the way you travel is not passing through every node (grid point) once and only once. For example you did not go through the left most point at 8.
Just try some more, remember there is still pcbouhid's million dollar to be gained for a correct solution.
Let us know if you found a solution.

Posted by Hugo
on 20050418 13:36:27 