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

Other Shapes: Other
Jagged CubeA cheap piece shuffle from the 1980s. Produced in Taiwan.
Jelly Beans StarA 5x5x5 with transparent resin dice glued on the pieces to form a star.
Jessen's 2x2x2A straightforward (?) shape variant. In this case the shape is Jessen's Orthogonal Icosahedron.

Jumble IntersectTwo 2x2x2s (rotated with respect each other) fused into one puzzle.
Jumble RockA jumbling puzzle built around an unusual, currently unnamed shape.
JumblixA puzzle with the axis system of a face turning pentagonal dipyramid. Ten of 12 possible moves only jumbling.

Junior Cross CubesA fully functional lower-order cross cube made with four Rubik's 2x2x2s.
Junior Delta PrismA triangular prism with additional pieces that allow 90°-moves.
Junior Shallow Cross CubeThe pieces of three Crazy 2x2x4's were swapped for this variant.

Junior Trignis (aka Vulcanito)Lower order puzzle of Trignis (Vulcano).
K-CubeA self-made 2x2x3 with extensions.
Key+Lock CubeA puzzle consisting of two cubes and with two solutions. Two 3x3x3's with some pieces glued on one face.

Keychain Cornerless CubeA 19 mm Key-Chain corner-less cube built by Carolina Prendergast.
Khaled's Time MachineThis puzzle combines the Time Machine with the Polo Gears Cube.
Kilomix SallyA Kilominx in tetrahedral shape and "ghosted"


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