It is challenging because Erno wanted to make us think beyond what we would expect.
If you meant who "invented" the Rubik's cube then Erno Rubik did in 1974.
1974
The Rubik's cube was not discovered but made or invented. Anyway it was invented by Erno Rubik in 1974
Erno Rubik The inventor of the Rubik's Cube, one of the most popular puzzles of all time. He later invented several other puzzles, some of which were very successful, but of course none can equal the monster success of his cube.
It is challenging because Erno wanted to make us think beyond what we would expect.
The 4x4 rubik's cube or the Rubik's Revenge
Erno RUBIK
Because it's a cube and it was created by Erno Rubik.
erno Rubik invented the 2x2 - pocket cube 3x3 - Rubik's cube or magic cube 4x4 - Rubik's revenge 5x5 - professor's cube Rubik twist-snake Rubik's magic-the foldable sheet puzzle
The first person to solve the cube was it's inventor, Erno Rubik. After toying with it for about a week after making a prototype, he figured out some of the concepts and eventually solved the first cube in 1979.
Erno Rubik
The Rubik cube.