Huzzle Cast Nutcase - Difficulty Level 6 I couldn't solve it, haha! Taking it apart and putting it back together – it seems simple, but it's not! This puzzle is enjoyable for adults. This one is a Huzzle series puzzle with the highest difficulty level, 6! There are minor scratches from use and storage, but it can be enjoyed without any problems. Please refrain from purchasing if you are concerned about this. No box, just the puzzle itself. It will be compactly packaged and shipped.