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

Crazy Puzzle (other)
2x2x2 Circle CubeThe second circle puzzle made after the Crazy 4x4x4.
3x3x5 CircleA piece shuffle between 3x3x4 Circle and 3x3x6.
Augmented SkewbA Skewb with additional piece but still only two functional layers per axis.

Circle DinoCould be treated as a slices only variant of a higher order skewb.
Circle FloppyThe "Circle" or "Crazy"-variant of the Floppy Cube.
Circle GigaminxA Gigaminx with circles that make the visible three piece types hidden earlier.

Circle Pentagonal PrismA three-layered pentagonal prism with circles in the top and bottom face.
Circle Pentagonal Prism (seven circles)A face turning pentagonal prism with circles on all sides.
Circle SkewbA corner turning hexahedron with three logical layers. It looks as if "circle moves" were added to the skewb.

Circle Skewb DiamondA Skewb Diamond with circles in four (!) sides.
Circle StarminxA Starminx with circles.
Crazier FloppyA Floppy Cube with a circle that contains hexagonal prism.

Crazy 1x2x2The crazy variant of the 1x2x2.
Crazy 1x2x3The crazy variant of the 1x2x3.
Crazy 1x2x3 IIA crazy 1x2x3 with circles on the 1x3 sides. One circle is moving, the other is fixed.

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