There are 8 corners, 24 edges and 24 centres.Īny permutation of the corners is possible, including odd permutations. The Eastsheen version has purple (opposite red) instead of orange. However, there also exist Cubes with alternative colour arrangements (yellow opposite green, blue opposite white and red opposite orange). Edge pairs are often referred to as "dedges," from double edges.įor most recent Cubes, the colours of the stickers are red opposite orange, yellow opposite white, and green opposite blue. The location of these cubes relative to one another can be altered by twisting the layers of the cube, but the location of the coloured sides relative to one another in the completed state of the puzzle cannot be altered: it is fixed by the relative positions of the centre squares and the distribution of colour combinations on edge and corner pieces. Each corner piece or pair of edge pieces shows a unique colour combination, but not all combinations are present (for example, there is no piece with both red and orange sides, if red and orange are on opposite sides of the solved Cube). There are 24 edge pieces which show two coloured sides each, and eight corner pieces which show three colours. The central spindle is specially shaped to prevent it from becoming misaligned with the exterior of the cube. This design is more durable than the original and also allows for screws to be used to tighten or loosen the cube. There are 42 pieces (36 movable and six fixed) completely hidden within the cube, corresponding to the centre rows on the Professor's Cube. Its mechanism is very similar to Eastsheen's version of the Professor's cube, instead of the ball-core mechanism. The Eastsheen version of the cube, which is slightly smaller at 6cm to an edge, has a completely different mechanism. Turning one of the centre layers moves either just that layer or the ball as well. The ball is shaped to prevent the centre pieces of the other row from sliding, ensuring that the ball remains aligned with the outside of the cube.
Each groove is only wide enough to allow one row of centre pieces to slide through it. There are three mutually perpendicular grooves for the centre pieces to slide through. The edge pieces are held in place by the centres and the corners are held in place by the edges, much like the original cube. The original mechanism designed by Sebestény uses a grooved ball to hold the centre pieces in place. The original Rubik's Revenge can be taken apart without much difficulty, typically by turning one side through a 30° angle and prying an edge upward until it dislodges. These consist of 24 centres which show one colour each, 24 edges which show two colours each, and 8 corners which show three colours each.
The puzzle consists of 56 unique miniature cubes ("cubies") on the surface.
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