WOW! 6 stars. A beautiful puzzle with so much to teach. It's so incredible that there's one unique solution out of this. The setup for this is so cool, wow! Feels like a classic but it was made 2 months ago Super Junior High Grand Master. Also I just now realized what the description meant, so +1 star for that This feels like a smaller puzzle disguised inside of a bigger one this was my Super Grand Junior High. Excellent work