Assembly
Put-together
3D Packing
2D Packing
Disassembly
Take-apart
Interlocking
Burr
Lock
TIC
Maze
Sequential Movement
Sequential Discovery
N-ary
Unknown
Board Burr
Coordinate Motion
Hidden Mechanism
Object Escape
Puzzle Box
Free the Coin
Sliding
Disentanglement
Free Key Piece
Dexterity
Hedgehog
Rotating
Tangram
2D Symmetry
Electronic
Twisty
No Moving Parts
Manipulation
Impossible Object