Sorting objects is a whole fascinating category of puzzles that help you spend your free time with fun and profit! Your task in Hoop Stack seems very simple: you need to divide the hoops into several stacks according to the color. But there is a catch: you can only move one hoop at a time and you can only take it from the top of any stack. This little condition makes the puzzle much more difficult to solve and you will probably make a lot of mistakes at the beginning. Don’t worry, you can always replay the level!