Initial setup (no red ball needed):
- If the gear bits are to the left and the bits are to the left, intercept a blue ball in the top right interceptor.
- If the gear bits are to the left and the bits are to the right, intercept a blue ball in the top left interceptor.
- If the gear bits are to the right and the bits are to the left, intercept a blue ball in the bottom interceptor.
- If the great bits are to the right and the bits are to the right, intercept a blue ball in the bottom interceptor.