Angry Birds Space Utopia Level 4-1 Walkthrough
The best strategy for Utopia level 4-1 is to get a bit lucky with your shot. It seems like a one-bird clear is the only way to get three stars on this level, so try messing around with your angles to find a good shot. It my experience, the best luck came by going through the bottom and top-left pigs first, then ricocheting into the top-right pig.
