Ripple DodecahedronA Rex Dodecahedron with an additional set of shallow cuts on the same axis system.
Ripple Dodecahedron PlusA Rex Dodecahedron with an additional set of shallow cuts on the same axis system. Unlike the non-plus version it has two additional types of pieces.
RitzA promotional cube from Politechnika. Advertising for a german manufacturer of pumps.
Roadblock IA cubic 3x3x9 with some traditional corner pieces inserted. A puzzle out of a series of cubes that behave like a bandaged 9x9x9.
Roadblock IIA cubic 3x3x9 with four traditional corner pieces inserted. A puzzle out of a series of cubes that behave like a bandaged 9x9x9.
Roadblock IIIA cubic 3x3x9 with some traditional corner pieces inserted. A puzzle out of a series of cubes that behave like a bandaged 9x9x9.
Rob's PyraminxA Halpern-Meier-Tetrahedron (aka Jings Pyraminx) without edges.
Robot 2x2x3A 2x2x3 transformed into the shape of a robot.
Robot Rubik Rubik's Cube with additional pieces glued on to resemble a robot. Due to the extensions several blocks and bandagings are occuring.
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