Alright guys, 

My last math challenge has not been solved, but I am getting tired of waiting, so here is another challenge for you.  Remember, the winner gets a candy bar!!  (Or another prize of equal or lesser value if you so choose) 

You are playing a game in which it is possible to score 4 points or 9 points.  Which scores are not possible?

Maybe if I make this post bright and colorful, someone will notice it…