I love the app. I particularly like suspended gravity, floor plan, cleaning path, pointing, Venice, gas networks, and cultured branches. Most of the others are pretty great too, but there are too many to list. I’ve been a fan of all the apps from this developer ever since I downloaded the original logic games on my first iPhone way back when. This is the first one that I’ve noticed/cared to look at the leaderboards. I’ve discovered that the completion board comes from the aggregate number of puzzles completed. I was curious about how the high scores board is generated. I haven’t noticed a score in any of the levels, just a timer and move counter. Just curious about it, you don’t need to elaborate. I seem to be near the top anyway, but my completion rank is consistently higher than my high score rank. Thanks again. Keep the awesome games coming.