The term EXPERT SOLVER OF A RUBIK'S TOY can be summarized as a CUBER, which is a five-letter word. A Cuber is someone who is an expert at solving the Rubik's Cube, a 3D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. The goal of the puzzle is to twist and turn the cube so that each of the six faces has only one color. It is considered one of the world's most popular puzzles and has become a cultural phenomenon.