Really neat, simple game. Worked great on Firefox Android. I play plenty of puzzle games, and I always wonder what the process of designing the problems is lik

Really neat, simple game. Worked great on Firefox Android. I play plenty of puzzle games, and I always wonder what the process of designing the problems is like. Do designers develop some notion of solvability, and quickly generate puzzles "in reverse", procedurally, or nearly so? Or do they start sketching an idea of a puzzle and then tweak it until it's solvable at just the right difficulty level, with lots of gameplay testing? I'm sure it depends on the puzzle mechanic, and this one seems particularly amenable to the procedural approach, being almost purely geometry-based.