Colliding Circles

You control four circles on a 16x16 grid. The objective is to direct a certain circle to the goal ring. What makes it challenging: You cannot stop the circles anywhere you like! they continue until they hit either a wall or another circle.

The special feature of this app is a solver, that, should you ever get stuck, helps you advance to the next challenge. After solving a puzzle once, you can also continue and try to find faster paths to the goal.

Can you find the solution with the fewest moves?

Have fun playing, i would be happy to hear your feedback!