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

2020
Coin Rhombic DodecahedronA rhombic dodecahedron that implements all three cubic axis systems.
Coin TransformerA rhombic dodecahedron with four sets of cuts that combine the Coin TRD, the Coin Rhombic Dodecahedron and the Rhomdo Transformer.
Coin TRDThe simplest possible face and corner turning Trapezo-Rhombic Dodecahedron.

Colorful stars cylinder cubeA three-layered variant of the Star Puck or the Pentabarrel without protrusions.
Coloured edge WormholeIt is a truncated and voided pentagonal trapezohedron with the mechanism of a decagonal prism with two layers.
Coner+3x3x3+SkewbA cube with a hybrid axis system that combines two face turn cuts with three corner turn cuts.

Coner+SuperZA cube with a hybrid axis system that combines one face turn cut with three corner turn cuts.
Copter ExtremeThe Clover Cube Extreme with different cuts exposing an additional type of piece.
CORD v1.0Spherically shaped variant of a cube with a hybrid axis system that combines face, edge and corner turning.

CoreA Rex Cube in shape of three intersecting cylinders.
Corner Twist PyraminxPyraminx consisting only of trivial tips.
Cracked CheeseThe concept of Breeze Cube applied to Rubik's Cheese.

Crazy 4x4x4+SkewbA hybrid axis system combining a skewb with a 4x4x4 but this time with the Crazy-version of it.
Crazy AssassinAnother face turning associahedron but this time with circles inside of six faces.
Crazy ChopperA sphere that turns like a hybrid combining a face and edge turning cube.


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