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

Moving: Tiles
Circle PuzzleFour intersecting circles with fourfold symmetry.
Circle Puzzle (1x3)Three intersecting circles with fourfold symmetry.
Circle Puzzle - MastercardTwo intersecting circles with a fourfold symmetry.

Circle puzzle extraTwo circles rotating by 90� and one small circle rotating by 180�.
Circuloid V1The Lotica reimplemented but with a central piece.
Circuloid V3A deeper cut version of the Circuloid V2

Circuloid V4A deeper cut version of the Circuloid V3
Circuloid V5A deeper cut version of the Circuloid V4
CleavageFour intersecting circles in two different radiuses. The turn in steps of 90° and 45°.

Clover (2D with floating or ghost axes)A 2D puzzles with floating or ghost axes.
Cohan CircleTwo intersecting circles. There exists a newer relative named Arusloky.
CollideThree circles with 90°-turns but in different sizes.

ColondraEight intersecting circles bandaged comparable to the Rotascope.
Colors CrossTwo plungers and one rotation used to move nine pieces.
ComboSimilar in concept to a number of other puzzles.


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