Get all 15 blue balls down without the red ball getting intercepted. Do not change the starting orientation of the bits.
A tricky task. Solver does not know how to solve such large tasks in general, so I had to solve this problem manually in the process of simplifying solver programming. The second problem is that no simulator allows you to put a gear on a crossover and I can’t fully test the solution. I don’t have a game.
I never knew you could place gears on crossovers, what a creative puzzle 
if I ever make a remake of Turing Tumble (most likely in Gamemaker Studio) I will definitely have a toggle between gear versions of parts and non-gear versions, which would allow placing a gear on an interceptor as well as crossovers and reflectors, which I definitely would like to implement