Making A Piece Move From One Spot To The Next?

TI have a picturebox on top of another picturebox, like a smaller square perfectly in the middle of a lil bigger square picturebox, if you click on the smaller one inside the slightly bigger one, it checks to see what the color is of the picturebox "under.It", or the Picturebox thats bigger than it, and is like sourounding the smaller one in the middle of it... If when you click the small one, and the BG Color of the one that's under it is Black, change it to white, "my forms bg color is also black"....so the highlighted pictureboxes will seem more like they get highlighted, ya know...

Here's the code, after you've looked at those pictures, you can probably imagine what I want this code to do, and it's really Guiness really, because when I program in VB.NET, and before I go to YouTube to teach others how to do different things with VB.NET,I like to make sure that my program is very simple, but very effective, and does the job.When I click two pictureboxes, and when my app knows that I have clicked 2 of em, which I had no problem being able to do, I want the FIRST PictureBox To Switch With The Second One That Gets Clicked, It's CHESS....It Seems So Damn SImple, BUT I'M STUCK AGAIN, AND I WANT TO MAKE A CHESS BOARD IN VB.NET.