Tetris

I'm wondering what you guys think is a good way to handle the blocks in the "well" (what I call the area where the blocks fall) and the blocks in the falling shape in Tetris. My ways always seem overly complicated.

I'd probably have an array for the well blocks, with the dimensions of the array be the coordinates of each square. Then, I'd have a type for the falling blocks, and when the blocks hit the bottom, they transfer their information over to the array and then delete themselves.