This uniquely shaped puzzle seems to exactly match the shape of a UFO! Even as you attempt to take out the spherical piece in the center, it spins freely, which makes grasping the solution a galactic challenge. Level 4 puzzles are considered challenging by most puzzlers. Created by Finnish puzzle designer Vesa Timonen.
Hanayama cast puzzles are some of the world's finest brain teasers. These high-quality, cast metal puzzles come in six challenging, Mensa-rated levels of difficulty. UFO is level 4.
Hanayama puzzles are recommended for ages 12 and up
