You start off with a white ball, throw it in a corner or something thats easy to get close to (has to be past white line) after that you will have a blue ball and you have to get as many close to the white ball for points, if your oppenent gets closest at the end, they get points and you dont, the points are determined by how many balls are closest without the others interferring.
Easily boostable with someone else - can get this achievement at same time