Online since 2002. The most comprehensive site for all around twisty puzzles.

2015
Raptor MirrorThe concept of Twist Cubies applied to a Bump Cube
Real 6x6x6A 6x6x6 which requires the inner 4x4x4 to be solved as well.
Rex Axis Snub CubeA Rex Cube with rotated axis systems and then truncated into a Snub cube an archimedean solid.

Rex BiconeA Rex Cube truncated and extended into the shape of a bicone.
Rex Chamfer BallA Rex Cube with custom 3D printed pieces that give it the shape of a chamfered dodecahedron.
Rex Ghost CubeThe concept of the Ghost cube applied to the Rex cube. This time with differently coloured stickers.

Rex Icosahedron (aka RICO)A Rex Cube with extensions that give it the shape of an icosahedron.
Rex KiteA Rex Cube with the shape of a deltoidal icositetrahedron which is a catalan solid.
Rex PuckAn axised Rex Barrel. A Rex Cube in shape of a cylinder but the axis system was twisted inside the solid.

Rhombus-Tri SliderA sliding piece puzzle similar to Elemental:Argon but with three plungers instead of four and some other small changes.
Roto 36Four circles. One with 120°-steps, three with 60°-steps.
Roto 44Four circles in square configuration with a fifth in the center.

RotoPrism 2 PeekabooA "see-through" variant of RotoPrism 2.
Rotoskewb IIThe successor of Rotoskewb implements the true concept the original idea giver had in mind.
Rubik's 35th anniversary CubeA cube of japanese origin celebrating the 35 anniversary of the Rubik's Cube.


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