I'd had this idea a while back already. I wanted to do something with mazes to turn non-unique mazes into unique mazes by placing shapes in them. I thought this was the easiest way. I found it somewhat funny to see the idea pop up in reverse in this year's USPC. This idea seemed like something different that would fit in well in a varied set.
I thought the puzzle worked out nice, but I haven't really heard any comments on people who tried to solve them. The starting logic is somewhat tricky, but I think the most obvious thing to start with.
Rules for Penta Maze