Speedcubing are also different shapes of the famous puzzles, including Pyraminx, Megaminx, Skewb, and Square-1. The Rubik's Cube was invented in 1974 by Hungarian professor of architecture, Ernő Rubik. A widespread international interest in the cube began in 1980, which soon developed into a global craze. On June 5, 1982, the first world championship was held in Budapest, Hungary. 19 people competed in the event and the American Minh Thai won with a single solve time of 22.95 seconds. Other notable attendees include Jessica Fridrich and Lars Petrus, two people who would later be influential in the development of solving methods
Professor Layton and the Last Specter prevented the game from being released before the end of 2011. Every puzzle in "Last Specter" was created by Akira Tago, a Japanese professor and author of the Atama no Taisō series of puzzle books, which has sold more than 12 million copies within Japan. The game was produced by Level-5 CEO Akihiro Hino, and designed around the concept of , detailing how Professor Layton met his apprentice, Luke. The "Professor Layton" series was envisioned as a trilogy, to be completed with the release of the third game, "Professor Layton and the Unwound Future". In spite of this, Hino said