He sat in his living room, in a home he designed himself, in front of a bookshelf full of science fiction titles — his favorites include works by Isaac Asimov and the Polish writer Stanisław Lem. Rubik called his invention "Magic Cube", but was later renamed by the Ideal Toy Corporation in 1980. His resume includes stints as a professor, architect, designer, editor and, now, writer. Two years later, 300,000 cubes had sold in Hungary. In Multiple Blindfolded, all of the cubes are memorised, and then all of the cubes are solved once blindfolded; thus, the main challenge is memorising many – often ten or more – separate cubes. Fridrich's solution requires learning roughly 120 algorithms but allows the Cube to be solved in only 55 moves on average. From 1967 to 1971, Rubik attended the Hungarian Academy of Applied Arts and was on the Faculty of Interior Architecture and Design. He’s quite ambitious; I am less so,” Rubik writes. A mass-produced 17×17×17 was later introduced by the Chinese manufacturer YuXin. More than 350 million cubes have sold globally; if you include knockoffs, the number is far higher. Blindfold solving: The world record fastest Rubik's Cube solve blindfolded is 15.50 seconds (including memorization), set by Max Hilliard of the United States on 1 August 2019 at CubingUSA Nationals 2019. The official winner was Jury Froeschl who completed it in 38 seconds. There are many variations of the original cube, some of which are made by Rubik. Thus one can nominally solve a Cube yet have the markings on the centres rotated; it then becomes an additional test to solve the centres as well. It was the puzzle’s creator, an unassuming Hungarian architecture professor named Erno Rubik. Kim documents the way kids are mastering an analog tool using tools of the digital age — YouTube tutorials, articles, and more — and creating online communities around their love of the cube. Reports described how he secluded himself and worked on the cube day and night for weeks.  Hence, Ishigi's patent is generally accepted as an independent reinvention at that time. As he was writing “Cubed,” his understanding of his invention evolved, he said. She is known for her independent films and documentaries, including one about Alexander Graham Bell. “I’m very close to the cube. Biography of Ruth Handler, Inventor of Barbie Dolls, Emile Berliner and the History of the Gramophone, The History and Invention of the Paperclip. The unofficial speed records may be ten seconds or less. Smithsonian Institution. He became obsessed with geometric patterns. However, with marker pens, one could, for example, mark the central squares of an unscrambled Cube with four coloured marks on each edge, each corresponding to the colour of the adjacent face; a cube marked in this way is referred to as a "supercube". He has plans to start designing computer games and continues to develop his theories on geometric structures. In Blindfolded Solving, the contestant first studies the scrambled cube (i.e., looking at it normally with no blindfold), and is then blindfolded before beginning to turn the cube's faces. Single time: The world record time for solving a 3×3×3 Rubik's Cube is 3.47 seconds, held by Du Yusheng (杜宇生) of China, on 24 November 2018 at Wuhu Open 2018. The cross is solved first, followed by the remaining edges, then five corners, and finally the last three corners. The next day he went to the state trading company, Konsumex, and asked permission to sell the Cube in the West. During this time, the name was changed to credit the inventor, and thus the Rubik’s Cube was officially born. Some later versions of the cube have been updated to use coloured plastic panels instead, which prevents peeling and fading. In 2004, the WCA made it mandatory to use a special timing device called a Stackmat timer. In 1980, Ideal Toy brought Rubik to New York to a toy fair. When he invented the cube in 1974, he wasn’t sure it could ever be solved. He did not realise that he had created a puzzle until the first time he scrambled his new Cube and then tried to restore it.  By 1981, Rubik's Cube had become a craze, and it is estimated that in the period from 1980 to 1983 around 200 million Rubik's Cubes were sold worldwide. An alternative notation, Wolstenholme notation, is designed to make memorising sequences of moves easier for novices. The key difference is the use of the vowels O, A, and I for clockwise, anticlockwise, and twice (180-degree) turns, which results in word-like sequences such as LOTA RATO LATA ROTI (equivalent to LU′R′UL′U′RU2 in Singmaster notation). And while interest in the cube dropped, it has recently picked up again — as director Sue Kim illustrates in her new documentary “The Speed Cubers.”. Each method of solving the Cube employs its own set of algorithms, together with descriptions of what effect the algorithm has, and when it can be used to bring the cube closer to being solved. A sixteen-year-old Vietnamese high school student from Los Angeles, Minh Thai won the world championship in Budapest (June 1982) by unscrambling a Cube in 22.95 seconds. Speedcubing , also known as speedsolving is a practice where one has to solve a Rubik’s Cube in the least time possible. The first test batches of the Magic Cube were produced in late 1977 and released in Budapest toy shops. Erno Rubik established a foundation to help promising inventors in Hungary. It was during his time there that he built designs for a three-dimensional puzzle and completed the first working prototype of the Rubik's Cube in 1974, applying for a patent on the puzzle in 1975.
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