How to get rid of the magnets?

You don't, you use them to help you break lines. Match 3 of the same color as the magnet next to them and the magnet will send a ray that will elimu ate the entire line. Sometimes a magnet will zap another magnet, which in turn will shoot another ray, possibly in a different direction. If you plan it well this can help you erase different lines in a way that will work out for you. They can change directions, moving clockwise. Learn how to use this to your advantage.