Track and get the position

First of all im new in Matlab, im learning Image Processing and i want to find a solution for this one. Let's say i have a photo of chess board like in photo 1 and a red point in B3 position. So if i capture that with my camera what to program in matlab to have an answer from matlab like You're red point is in B3 position. And if i move in C2 position after 3-5 seconds Matlab to answer 'Your red point is in C2 position'.