2X2X2
3X3X3
3X3X3 (PICTURE)
4X4X4
5X5X5
CUBE (SHAPE PRESERVING)
CUBE (SHAPE CHANGING)
CUBOID
OCTAHEDRON
DODECAHEDRON
FOUR
TWENTY
THIRTY
PUCKS
SPHERE
CYLINDER
STAR
HEADS & OBJECTS
OTHER SHAPES
MOVING HOLE
MOVING MARBLES
MOVING TILES
SIAMESE & FUSED
FOLDING
PATTERN MATCHING
OTHER MECHANISMS
BOOKS
GAMES
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