Very neat ball order level but i feel uncomfortable not having used a ball that has a significant outcome.
Great balls/logic level...I used all the balls and I think that the intended way is clever...Thanks for sharing and great job @Master Author
I added a star as I enjoyed it. It was simple but logical. As @Block builder said, you don't need the ball between R and B if you drop them in a certain order but it's more running for B. Thanks for sharing.