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Rainbow slideThe Moving Hole cousin of the Rainbow Cube.
RainbowlabacusA small but symmetry-breaking modification of the Astrolabacus.
RapogicA combination of Rapture Cube and Dogic.

Raptor CubeA Rex Cube newly designed to include the corners of a Compy Cube
Raptor JewelThe Rhombic Raptor with two corners flattened.
Raptor SkewbA corner turning hexahedron with three cuts per axis. It combines Skewb and Raptor Cube.

Raptor Star SkewbA Raptor Skewb in shape of a Rhombic Dodecahedron with four sides removed.
Rapture CopterAn edge turning cube where the axis allow 45 turns.
Rapture Dino CubeThe geometry of the 60-moves-corner turning hexahedron implemented twice in one puzzle.

Real 6x6x6A 6x6x6 which requires the inner 4x4x4 to be solved as well.
Rebel Cube (Void 4x4x4)A fully functional and proportional 4x4x4 without center and core pieces.
Redi 3x3x3A hybrid puzzle consisting of the abilities of a Redi Cube and a 3x3x3.

Redi Rhombic DodecahedronA corner turning Rhombic dodecahedron, or a very simple cube with hybrid axis system.
Revelation Cube - 20 mmA fully functional 4x4x4 with 20 mm edge length.
Rex DecahedronEight axis with cuts that let the puzzle resemble a distorted Rex Cube.

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