layers). The highest order mass-produced variant of the Megaminx is the Zettaminx, which was released by ShengShou in 2021, and the highest order variant of the Megaminx ever made to date is the Minx of Madness, created by Corenpuzzle using 3D printing. The Minx of Madness was revealed in May 2022. It is the dodecahedral equivalent to a 21x21x21 Rubik's cube. Alexander's Star is equivalent to solving only the edges of a six-color Megaminx. The Impossiball and Kilominx are equivalent to solving only the corners of a Megaminx, but are very different mechanically. The Impossiball is available with either six or twelve colors. The Pyraminx Crystal is a modified Megaminx with deeper turning planes. Tony Fisher has produced a shape modification of the Megaminx into a cube form which he called the Hexaminx. Another variant is the Holey Megaminx, which has no center pieces, like the Void Cube. It is being produced by Mèffert as of July 2009. Other variants include the Flowerminx, Megaminx Ball, and Crazy Megaminx. Number of combinations The Megaminx has 20 corners and 30 edges. It is possible on a Rubik's Cube to have a single pair of corners and a single pair of edges swapped, with the rest of the puzzle being solved. The corner and edge permutations are each odd in this example, but their sum is even. This parity situation is impossible on the Megaminx. For both types of pieces, only even permutations are possible, regardless of the position of the other set of pieces. There are 20!/2 ways to arrange the corners and 319 ways to orient them, since the orientation of the last corner depends on that of the preceding ones. There are 30!/2 ways to arrange the edges and 229 ways to flip them. The full number is 100 669 616 553 523 347 122 516 032 313 645 505 168 688 116 411 019 768 627 200 000 000 000 (roughly 101 unvigintillion on the short scale or 101 undecillion on the long scale). The corners are distinguishable on a 6-color Megaminx because two corners with the same three colors will be mirror images of each other. There are 15 pairs of identical edges. It would not be possible to swap all 15 pairs, since this would be an odd permutation of the edges, so a reducing factor of 214 is applied to the preceding figure. The full number