python - Containing Pygame Sprite to Surface -

I'm writing a chess program in Pygame's attempts ... Well, to write chess. Currently, one of the problems I am facing is trying to attract each piece in my affiliate square. I mean, I think one way to force the phantom to join each other in its own class.

The logic behind my program is basically no one (pieces can move anywhere, etc.), but I have to see that this is possible before proceeding with the rest of the project.

It requires some photos for pieces, but I'm not sure where to upload them, so just pretend they are not needed :)

Thanks in advance.