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Ripple CubeA Rex Cube with an additional set of cuts on the same axis.
Ripple DodecahedronA Rex Dodecahedron with an additional set of shallow cuts on the same axis.
Ripple Dodecahedron PlusA Rex Dodecahedron with an additional set of shallow cuts on the same axis. Unlike the non-plus version it has two additional types of pieces.

Ripple Rhombic DodecahedronA Rex Rhombic Dodecahedron with an additional set of shallow cuts on the same axis.
Roadblock CubeConceptually three 2x2x6s fused to one puzzle.
Rob's IcosahedronAn icosahedral variant of Rob's Pyraminx and Rob's Octahedron.

Rocket StarThe Rocket Twist with a five-fold symmetry instead of a three-fold symmetry.
Rocket TwistRocket Twist is the first in a new group of puzzles that do not have core but still jumble.
RosetteA deeper cut cousin of the Clover Cube.

Rota CubesThree cubes in a tetrahedral case. With every move they not only change position but also orientation.
RotabramThree intersecting circles with gears. Pieces can be exchanged on two are rotated in each turn.
Roto CrystalRotoCrystal is an 18 sided analog of the Fracture-10 puzzle, based on the hexagonal dipyramid.

RotoPrism 2A modified shape with a lower-order slice pattern for the Fracture-6.
RotoPrism 2 (prismatic)RotoPrism 2 (prismatic) is a lower-order shape modification of the Fracture-6 puzzle.
RotoPrism 2 PeekabooA "see-through" variant of RotoPrism 2.


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