There are three metal disks with paths cut out of them to make this puzzle. The initial challenge is to take the three pieces apart. Maybe you’ll get them apart by luck; by fiddling … and fiddling … and more fiddling.   But challenge yourself to learn the sequence of moves.  Once you’ve done that you will find it harder to put them back together again and reassemble the sphere shape.

Metal puzzle

Age 10+

Difficulty 7/10