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.
i thought i had a method, but i argued myself out of it.
first i had made a 10x10 grid and moved through it making note in each box how many options i had. many moves were forced so as not to leave myself stranded, those got a 1.
i tried it a handful of different ways and played with the numbers. I was sure i had a pattern but found a problem with my logic.

Posted by steve
on 20050408 06:52:17 