I have at last solved this very difficult puzzle by watching a video which I slowed down so I could take notes and draw pictures. If anyone else needs help with this puzzle when playing Quern Undying Thoughts, watch the You Tube video, slow it down to .25, write down each lever pull or raise and draw pictures of the position of the lights. I thought this info might be of help. Thanks to all of you on Gameboomers and I just have to say that Gameboomers is the friendliest and easiest forum to find answers for your games. I have visited this site since 2009 and you are the best one out there!