Manish Rathod, 50, has made 50 variants himself, and 15 of his designs have been inducted into the Twisty Puzzles Museum, an online repository of unique takes on the Rubik’s cube, by designers from around the world. Rathod’s entries include a 12-sided or dodecahedron version with 50 movable pieces; an icosahedron with 20 faces; and a curvy ghost cube that …
