XNA Game - FIGHT!

So after years of wanting to do this, but not knowing how to start, me and my friend are finaly going to be building our super secret XNA puzzle game. Problem before was I didnt know how to build the puzzle board but using the awesome info from:

http://www.packtpub.com/article/building-complete-board-based-puzzle-game-microsoft-xna-40

By the way the author of that article also made a really good XNA 4.0 book, you should check it out. I was able to use bits and pieces and tailor it to give me a great starting point to the game. As of now its just gonna be a prototype to get the basic gameplay mechanics working. No pretty graphics yet.