I built my own version of the 4X4 as a learning tool for the final challenge. Rewriting and optimizing the code let me know how much you put into the game!!!

I then turned it lose on my friends to see how their logic would work so that I could see how to trick people so that I might see how you would try to trick us!!!

Doing so taught me to work backward for the answer. Hence I got the last move, C3 C1 right off which sent me to R8 C2 etc...

Little did I know that there were still 29 moves to go!!!