Susan,
This is what L4L mentioned in page 5:
Double check that all solid colors are in similar colored rings.
Some gets moved out or wrong colors inside those rings when you redo the others.
It does take patience.
- Take note of the rotation of the balls move it to a position where when you do the rotation - it will fall inside the same colored rings.
- Do the outer or single balls first, then you can concentrate on the crowded ones.
- Check if there are rings with far matching colored balls. Move a colored ball closer to it then so that they will be removed from the crowds.
- Then recheck that the balls are placed in the matching colored rings when you think you are done.
