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

2013
PrizmixThe Slim Pyraminx transformed to have three layers.
Professor Dürer's SolidA two layer (per)face turning Dürer's Solid.
QR-Code CubeA custom sticker variant showing six different 2D-barcodes.

Radio Chop (Radiolarian 15)The 15th and last entry in the series of Radiolarians, all face turning icosahedrons.
Radio Fathom - (Radiolarian 14)The 14th entry in the series of Radiolarians, all face turning icosahedrons.
Radio Gem - (Radiolarian 13)The 13th entry in the series of Radiolarians, all face turning icosahedrons.

Radio Nebula (Radiolarian 12)The 12th entry in the series of Radiolarians, all face turning icosahedrons.
Radio Star (Radiolarian 11)The 11th entry in the series of Radiolarians, all face turning icosahedrons.
Rayminx (aka Giga Tuttminx)A higher order Tuttminx.

Rebel Cube (Void 4x4x4)A fully functional and proportional 4x4x4 without center and core pieces.
Rex Skewb 2x2x2Combines the cuts of the Rex Skewb (which itself combines two sets of cuts) with the 2x2x2.
Rhombic Dodecahedron in CubeA rhombic dodecahedral 3x3x3 (a truncated puzzle) extended to be a cube with tips. Clear resin was used for the extensions.

Roadblock CubeConceptually three 2x2x6s fused to one puzzle.
Roadblock IIIA cubic 3x3x9 with some traditional corner pieces inserted. A puzzle out of a series of cubes that behave like a bandaged 9x9x9.
Rotascope - EscherFour customized Rotascope with themes based on famous works of M.C. Escher.


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