Hashtag is a puzzle that combines four plate-like pieces interfering with each other in exquisite balance. Its unexpected movement cannot be imagined from the linear movement when playing, but will be instantaneous.
Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 4 puzzles are considered challenging by most puzzlers.
