Rhombille Rex IIIThree intersecting circles, one of sixth order and two of third order.
Robot 2x2x3A 2x2x3 transformed into the shape of a robot.
Rocking the Moon“Rocking the Moon”, a puck with a curved cut deeper than the origin and 11 segments.
Rolling OctahedronsThe puzzle consists of 6 identical octahedrons in a grid, each octahedron has 8 differtents colours on it. You can roll the ocatahedron into a vacant space. The object of the puzzle is get the final pattern from any initial.
Rolling pyramidsFifteen tetrahedrons over a grid. The tetrahedrons have to be rolled around to scramble and solve the puzzle.
Rompentrix, the Vertical SmileThis is a subset of the Starminx with two axes, both with a traditional cut and one cut deeper than the origin, in which a rhombus, pentagons and triangles appear.
Rota-RiusTwo very small circles and one plunger with six tiles.
RotaPlusThe Rotascope with the central piece unbandaged.
Rub el HizbOne circle rotating by 45 plus one plunger to exchange pieces.
Rubik' PhantomA 3x3x3 with tiles sensitive to temperature. Completely black when cold.
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