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A dedge (short for double edge), is a block consisting of the two edge pieces on a 4x4x4 cube that have the same pair of colors. A dedge can be moved around as if it were a single edge on a 3x3x3 cube, and one solution method that makes extensive use of this principle is the Reduction Method.

There are similar concepts to the dedge on larger cubes, where all of the edge pieces with the same color pair are matched together. On a 5x5x5 this is called a tredge, and on larger cubes several fanciful names have been proposed ('quedge' and 'quidge' for instance) but it is usually easier to just refer to the block of edges as a 'paired edge' or 'edge group'.

See also