The object of the puzzle is to separate the 3 unique pieces of the atom take apart brainteaser and then reassemble them again. Don't forget to put the marble back it when you reassemble.
The puzzle was designed by the American puzzle designer Doug Engel. Doug Engel started designing puzzles in the early 1980's. His bio states that "Puzzles work well for me, being a kind of mathematical art. So, hopefully some of my designs will inspire people to think, imagine, and create, for there is yet an infinity of things to do." and "Puzzles are a secondary motivation that came about from early exposure to Martin Gardner's writings, probably the best recreational mathematics writer who ever lived, and from a math professor, the late Everett Marshall, who was crippled from birth but always a fountain of enthusiasm." He says that "The idea was to make puzzles that are not so hard, are nice to look at and display, and represent a fun challenge that anyone can succeed at."
This puzzle ticks all those boxes. Not too hard. But a fun challenge that you will be able to work out if you stick at it.
Size: Each atom piece is approximately 85mm long and made from 7mm cast metal alloy. The puzzle comes in the box shown in the photo with a step by step printed instruction sheet inside.
Note: This would not normally be something we would say about a puzzle. Generally we discourage force. But we have noticed when solving this puzzles a certain amount of hand strength is required. The pieces are interlocked securely and positioning of the pieces is important. It's been specifically designed this way so the puzzle doesn't simply fall apart.