Posted by **Corey** on Wednesday, September 26, 2012 at 4:49pm.

You and a friend roll a pair of dice. The game is over either when you receive a sum of nine or when your friend receives a sum of six. Assume that you start first. What is the probability that you win.

Note: For any round, if you receive a sum that is not nine AND your friend receives a number that is not six. The game moves to the next round.