Solve a 3x3x3 as a team with a solver who is blindfolded, and a caller who is not allowed to touch the cube or the solver's arms below the elbow. There is no inspection time.

Solve a Mirror Blocks by feel without memorization

Assemble the pieces of a 3x3x3 Cube around a core as quickly as possible, ending in a solved state

Not to be confused with the Gear Cube. Please see the rules page for clarification.

Two layer version of the Face-Turning Octahedron. The solution for an attempt cannot be shorter than 5 moves.

Redi Cube scrambles must be used for this puzzle

Also known as 5x5 Clock. Sold by Shengshou and contains a middle center clock.

Please note the differences between the standard 1x3x3 Cuboid (Floppy cube) and the Super 1x3x3 Cuboid (Super Floppy cube). The original Floppy cube has four centers and four edges, but it only allows 180-degree moves. In contrast, the Super Floppy Cube has four centers and twelve edges (four additional ones within the center of each 3x3 face) and allows 90-degree moves.