Indeed, I get it. Btw, you could also just take a piece of paper, a pencil and photograph the outcome with your phone.
Now, think a little further - your Arduino system needs to keep track of scores, but it does so based on user input. How does that work into your scoring table?
The gist of my question above is that the flow chart @Railroader mentioned is not just the logic behind the scores - it's the script that the Arduino goes through. As detailed as possible. You need to think very fundamentally here.