I first found a shorter version of this on Kongregate. I liked it so much that I asked the developer if he had this game for iOS, and he said he was just about to release it. I was happy to see it released! Very good puzzle. The difficulty ramps up at a perfect pace. It’s never gets really hard, but gets more complex as levels increase, requiring more planning and concentration. If you like puzzles like Hook and Push, this is of that general type and you will like this.