Rubik cube solution

 He took a month to solve it

Erno Rubik, The son of a poet mother and a glider-manufacturer father the creator of Rubik's cube in 1974 when he was 29 years old made it. He is a Hungarian architecture professor. He made this cube to explain 3-dimensional geometry to his students. A report says that "One in seven people in the world has played with a Rubik's Cube, and more than 400 million have been sold since its invention in 1974. He thought that no one could solve this. Randomly twisting it, he realized it would take longer than he had on Earth.  Mathematicians later calculated that there are 43,252,003,274,489,856,000 ways to arrange the squares, but just one of those combinations is correct. Approximately 50 books were published describing how to solve the puzzle of Rubik’s Cube.  It proved a useful tool for teaching algebraic group theory.

It took a month of twisting and re-twisting in his room before he found the solution. Exhilarated, he left the room and showed his mother. “I remember how proudly I demonstrated it to her when I found the solution of the problem,” Rubik wrote, “and how happy she was in the hope that from then on I would not work so hard on it.”

Since then, 350 million Rubik’s Cubes have been sold around the globe - The world record for the fastest Rubik's Cube solver is held by Feliks Zemdegs at 4.22 seconds, the time most adults would take to read this sentence. Thank you for reading.