According to Pro - Took me 18 minutes of total playtime across about 3.5 months. Finally cracked it and the solution was definitely rewarding. Nice one.
For me, this level is a reminder that no matter how many "rules" we believe to know about pipelining, each level is always a new puzzle and those rules are only half a help.
I really struggled here, and even after winning, I don't understand why the corresponding route is shorter.
Pipelining is just black magic...
Insights