Rated as a Level 6 difficulty by the manufacturer (Hanayama Puzzles of Japan) on a scale of 1 to 6 where 1 is easiest and 6 most challenging. Your experience could differ. Thought by many to be one of the best in this series of over 50 different brain teasers because the solution is at first elusive and then delightful once discovered.
Solved with a series of clever movements. NO FORCE ever needed.
Small, compact, pocket-size cast metal brain teaser measures approximately 1.75 inches across and 5/8 inches thick. Recommended for ages to 12 through 105 years. A few bright 8 to 11 year olds may also enjoy this puzzle.