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

Guan Yang
XO CubeA Dino Cube with a cage as visible core.
YiSen CubeA 3x3x3 combined with a Skewb which moves are possible in midst of slice turns.
YiSen Cube ZeroA hybrid von 3x3x3, skewb and mixup cube.

YiSen MixupA Yisen Cube with the mixup cube integrated into it.

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