Looks very complex and requires much patience but the path to the win is surprisingly short. B used two elevators and two horizontal sliders. If B was supposed to use three elevators only, I have to look again.
I find it difficult to see and tap because there is always something in the way and too many moving things everywhere, .
I play more with the moving design than with the game complexity. Hope to do it better in next level . Thanks for playing it and for the comments.