Hylla: Shelf Sort Puzzle

Hylla is a shelf-sorting puzzle where the shelves themselves move. A tall birch bookcase with peg holes down its sides. A mess of books, binders and vases on the floor in front of it. Three moves: put a thing on a shelf, slide a run of one colour to another shelf, or lift a plank out of its holes and set it a hole higher or lower. A vase needs a shelf three holes tall. A plant needs the light of the top shelf. A box goes at the bottom. The heights of the compartments are the puzzle, and you change them. Every level is handed to a solver before you see it, so none is unsolvable. The par beside your move counter is the fewest moves the case can be tidied in, and it is the same number on every phone. No timers. No energy. Nothing for sale at a stuck point. Undo is unlimited and free. Start over whenever you like. THE ROOM Every fifth case you tidy, something moves into the room and stays:…