Rhombicuboctahedral 5x5x5A 5x5x5 truncated on the edges and corners to create a shape closely related to the rhombicuboctahedron.
RhombultimateA Pentultimate in shape of a rhombic triacontahedron.
RockA 2x3x3 truncated into a random assymmetrical shape.
RotabramThree intersecting circles with gears. Pieces can be exchanged on two are rotated in each turn.
Rubik's BankA hollow 3x3x3 which can be used as savings box.
Rubik's CodeA two player game like a two dimensional Mastermind.
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