This pipe used to break my brain, but after making the level “train intersection” I have started recognizing it everywhere and understanding it better.
For me, this level is an incredibly good surprise: am usually so bad at such type of levels, oft giving up. This time, I started 2 off and thought it will be as always. Then, for some reason, I "saw" a possible saving and tested it and won. MAGIC! Am still laughing on my chair...