Yeah, it's not the best game at making clear what's expected of you. I'd say if you've managed to progress to a new room that you haven't been able to before, o

Yeah, it's not the best game at making clear what's expected of you. I'd say if you've managed to progress to a new room that you haven't been able to before, obtained an item, or at least learned something new (an actual lightbulb moment), then the puzzle is still unsolved. I do have to say I had to look up the solutions to one or two puzzles when I played it.