I'm afraid I'm not a real big fan of these games. Every now and then I see a flash version and try my luck for a minute or two, but I never cant seem to get the hang of it. It's mostly luck if I ever get to the end of the level and I usually get bored pretty quick. To be totally honest, your version is no different. It probably also didn't help that I could not see the logic behind the A,B,C,D. I ended up selecting one and moving it across the board as quickly as possible and then doing the same with another. I did not get a whole lot of points, but then, I assume thats also not the correct way to play