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

Udo Krell
5x5x5 MechanismThe mechanism by Udo Krell.
Prof. Cube 2018Another 5x5x5 produced without stickers but a black rim.
Professor Cube (Tsukuda)Version by Tsukuda.

Professor Cube (grooved tiles)Meffert's 1998 tiled version.
Professor Cube (no white side)Professor Cube. Invented by Udo Krell. This one has no white side. Produced in Hong Kong.

Rubik's 5x5x5Version by Rubiks.com from 2002
Rubik's Studio 5x5x5The new retooled version of Rubik's Revenge produced in Hungary by Rubik's Studio
Rubik's Studio 5x5x5 (Japanese version)The new retooled version of Rubik's Wahn produced in China under license of Seven Towns

Rubik's WahnEarly Arxon version. Alternatively labeled: "The very ultimate in cube puzzles"
Rubik's Wahn IITexts on the package are in german.
Ultimate, Rubik's Wahn, Master RevengeInvented by Udo Krell. Produced in Hong Kong.


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