This fits your. Make sure this fits by entering your model number. Old fashioned heavy metal brain teaser disentanglement puzzles. BONUS Twisted Nails Puzzle. Objective of BLACKBEARD'S REVENGE is to remove the long narrow 5 inch 'U-shaped shuttle' hanging towards the bottom of the puzzle. Replacing the shuttle to the starting position is equally as challenging. Rated as a level 2 'Intermediate / Challenging' (on a scale of 1 to 4). Packaged in sturdy white box, cloth bag and with solution. Bonus: Separate the Twisted Nails Puzzle.