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

2019
Crazy 1x3x3A 1x3x3 with four circles on the short sides, two fixed to the surrounded sides, two non-fixed.
Crazy 2x3x3 IIIA Domino with four circles of which one moves with the surrounding layer.
Crazy Master Slim PyraminxThe Master Slim Pyraminx with an additional Circle.

Crazy Penta FloppyIt looks like a Floppy puzzle but solvingwise it is a reimplementation of the first pentagonal prism.
Crazy Pill 3x3x5A 3x3x5 in shape of a pill.
Crazy Pill 4x4x4A 4x4x4 in shape of a pill.

Crazy Void FloppyA combination of the Void Floppy and the Circle Floppy.
Cross Screw CubeThe Screw 2x2x4 implemented three times.
Crystal BallA spherical Pyraminx Crystal with an additional set of independent layers on each face.

CrystalliteDesigned to be the Ripple Cube Plus but without curved lines it can't be part of the series.
Cubic 3x5x7 - Horror - Bump CuboidCubic 3x5x7 "Horror" Bump Cuboid
Cubic 4x4x8 IIA cube behaving like a bandaged 8x8x8. All face pieces are split up.

Cubic Master PyraminxA Master Pyraminx turned into midturn state and then modified into the shape of a cube.
Cuboidal 3x3x7A cubic 3x3x7 with two slice turns and a series of extensions.
Cubosfera 5x5x5A 5x5x5 combined with the sphere of the same mechanism. With three straight sides.


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