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

Calvin's Puzzle
Calvin's Cuboid Series (Temple Cube)A 3x3x3 with five sides extended with an additional rotating layer. Member of a whole series similar to the Crazy Plus 3x3x3s.
Calvin's Cuboid Series (Trio Cube)A 3x3x3 with three sides extended with an additional rotating layer. Member of a whole series similar to the Crazy Plus 3x3x3s.
Chimera 2x2+6x6A 6x6x6 bandaged to resemble the AI Cube.

Chimera ShiftA bandaged 5x5x5 inspired by the "Bandaged Chimera Cube".
Chinese Mahjong 4x4x4A 4x4x4 covered with Mahjong symbols.
Chinese Mahjong 5x5x5A 5x5x5 covered with Mahjong symbols.

Chinese MaskA set of five 2x2x2s in shape of the Bicopter painted like chinese face-off masks.
Chinese Zodiac Animal 2x2x2 Puzzle HeadA series of twelve animal heads modelled an 3D printed around an Eastsheen 2x2x2.
Chinese Zodiac AnimalsA cube UV printed with symbols of the twelve animals of the chinese zodiac.

Christmas Starry Night 2x2x2A 2x2x2 covered with stickers of Van Gogh's Starry Night painting.
Christmas Starry Night 3x3x3A 3x3x3 covered with stickers of Van Gogh's Starry Night painting.
Circle MinxThe fist application of the circle-concept to a megaminx.

Clover IcosahedronA face turning icosahedron with spherical cuts and only two types of pieces.
Constrained CubeA 3x3x3 which twisting abilities can be contrained by various pieces. Mass produced versions of seven variants exists.
Corner-Road Bandage CubeA variant of the Latch Cube. Latches are placed on four corner pieces.


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