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  • Hanayama's Reef puzzle is a high quality cast metal brain teaser from puzzle inventor Akio Yamamoto

  • Discover how to separate these two interlocking pieces and then try to reassemble them!

  • Hanayama cast metal brain teasers have 6 levels of difficulty and each puzzle is mensa-rated

  • Level 3 puzzles are considered moderate by most puzzlers

  • BePuzzled Reef Hanayama Cast Metal Brain Teaser Puzzle Level 3 Puzzles For Kids & Adults Ages 12 & Up