The Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, the puzzle was licensed by Rubik to be sold by Pentangle Puzzles in the UK in 1978, and then by Ideal Toy Corp in 1980 via businessman Tibor Laczi and Seven Towns founder Tom Kremer. The cube was released internationally in 1980 and became one of the most recognized icons in popular culture. It won the 1980 German Game of the Year special award for Best Puzzle. As of March 2021, over 450 million cubes had been sold worldwide, making it the world's bestselling puzzle game and bestselling toy. The Rubik's Cube was inducted into the US National Toy Hall of Fame in 2014.
The Rubik's Revenge is a 4×4×4 version of the Rubik's Cube. It was released in 1981. Invented by Péter Sebestény, the cube was nearly called the Sebestény Cube until a somewhat last-minute decision changed the puzzle's name to attract fans of the original Rubik's Cube. Unlike the original puzzle, it has no fixed faces: the center faces are free to move to different positions.
Speedcubing, also referred to as speedsolving, is a competitive sport centered around the rapid solving of various combination puzzles. The most prominent puzzle in this category is the 3x3x3 puzzle, commonly known as the Rubik's Cube. Participants in this sport are known as "speedcubers," who focus specifically on solving these puzzles at high speeds, or more generally as "cubers". The essential aspect of solving these puzzles typically involves executing a series of predefined algorithms in a particular sequence.
The Professor's Cube is a 5×5×5 version of the original Rubik's Cube. It has qualities in common with both the 3×3×3 Rubik's Cube and the 4×4×4 Rubik's Revenge, and solution strategies for both can be applied.
The World Cube Association (WCA) is the worldwide non-profit organization that regulates and holds competitions for mechanical puzzles that are operated by twisting groups of pieces, commonly known as twisty puzzles. The most famous of those puzzles is the Rubik's Cube. Since the start of the WCA there have been over 10,000 competitions. The WCA was founded by Ron van Bruchem of the Netherlands and Tyson Mao of the United States in 2004. The goal of the World Cube Association is to have "more competitions in more countries with more people and more fun, under fair conditions." In 2017, they started work to become a non-profit organization and on November 20, 2017, the state of California accepted the initial registration of the World Cube Association.
Tyson Mao is an American Rubik's Cube speedsolver. He is a co-founder and a former board member of the World Cube Association, an organization that holds competitive events for the Rubik's Cube. In 2005, he set the world record for 3x3x3 blindfolded. In 2006, he appeared on the CW Television Network's Beauty and the Geek as one of the participants of the second incarnation of the reality television show.
Leyan Andrew Lo held the world record of 11.13 seconds for the fastest Rubik's Cube solve until Toby Mao in 2006 had a solve of 10.48 at the U.S. nationals competition in San Francisco. Leyan appeared on The Tonight Show with Jay Leno, where he solved a Rubik's Cube in 18.9 seconds. He also holds the former world record for the fastest blindfolded Rubik's Cube solve, at 1:28.82.
Bob Burton is an American speedcuber, most famous for competing in and organizing competitions all over the world and his former world records on the Rubik's Magic and Rubik's Master Magic.
Ron van Bruchem is a Dutch speedcuber living in Hilversum. He helped create the current resurge of Rubik's Cube enthusiasm by founding the international speedcubing community and organizing international competitions. He is also a founder, delegate and former chairman of the World Cube Association, an organization aiming at the spread of speedcubing as a regulated sport. He is also the host of the website speedcubing.com.
Tobias "Toby" Mao is a former world-class Rubik's Cube solver. Hailing from Hillsborough, California, Toby graduated from Crystal Springs Uplands School in 2007 and went on to study mathematics at Northwestern University in Evanston, Illinois. He is the younger brother of Beauty and the Geek second-season participant Tyson Mao, with whom he taught Will Smith to solve a Rubik's Cube for the 2006 film The Pursuit of Happyness. In 2006, Toby set the world record in speedcubing by solving the 3x3x3 cube in 10.48 seconds.
Yu Nakajima is a Japanese Rubik's Cube solver.
Mátyás Kuti is a Hungarian Rubik's Cube and Rubik's Magic solver. During 2007 and 2008 he held world records in many events. However, in February 2008, after determining that he had cheated in blindfolded events by peeking at the cube, the World Cube Association revoked all of his blindfold records and banned him for three years from WCA competitions.
Eric Limeback is a Canadian speedcuber. He is known for his 11/11 3x3x3 multiblindfold Canadian record solve, as well as his standard 3x3x3 blindfolded solving. Limeback was the first Canadian to record a sub-30 second official 3x3x3 blindfolded solve. Limeback began solving the Rubik's Cube in 9th grade. He graduated from Marc Garneau Collegiate Institute in 2010. He formerly held the Guinness World Record for the most 3x3x3 cubes solved in 24 hours, 5800, set from 3–4 October 2013 at Wilfrid Laurier University, Canada.
RuBot II is a Rubik's Cube solving robot developed by Irish roboticist and inventor Pete Redmond. RuBot II is also known as RuBot II, the Cubinator. RuBot II became the world's fastest Rubik's Cube-solving robot, and appeared as such in the Guinness Book of World Records. There are other Rubik's Cube robots too.
Feliks Aleksanders Zemdegs is an Australian Rubik's Cube speedsolver. He is one of the only two speedcubers ever to win the World Cube Association World Championship twice, winning in 2013 and 2015, and is widely considered the most successful and greatest speedcuber of all time. He has set more than 350 records across various speedcubing events: 121 world records, 213 continental records, and 7 national records.
Anthony Michael Brooks is an American speed cubing champion. He specializes in the 2x2 cube and classic 3x3 cube, and has been officially ranked in the top five in the world in both categories as recognized by the World Cube Association. Since learning to solve the cube in March 2008, Brooks has become known for developing advanced speedsolving methods as well as frequently promoting speedcubing in the media. While working as the Liberty Science Center's Speedcuber-in-Residence, Brooks set the Guinness World Record for most Rubik's Cubes solved underwater in a single breath, and also led the team that currently holds the world record for solving the Groovik's Cube, the world's largest functioning Rubik's Cube. In July 2017, Brooks was featured on the debut season of FOX's Superhuman TV show.
CubeStormer II is a robot built primarily with Lego Mindstorms and a Samsung Galaxy S2 for solving a Rubik's Cube. The project was commissioned by ARM Holdings and designed and built by Mike Dobson and David Gilday.
Mats Valk is a Dutch Rubik's Cube speedsolver. He broke the Rubik's cube single solve world record twice with times of 5.55 seconds in 2013 and 4.74 seconds in 2016. He won the Rubik's Cube European Championship in 2018 and was runner-up for 3x3x3 at the Rubik's Cube World Championships in 2013 and 2015.
Vincent Sheu is an American speedcuber or Rubik's Cube solver from Saratoga, California known for organizing World Cube Association competitions and setting world records in both the Fewest Moves event and the 2x2x2 single solve. He currently serves as a Director and Delegate for the World Cube Association (WCA) and has been an organizer of every annual US Nationals Cubing Competition since 2010. Sheu previously served as the first Chair of the WCA's Regulations Committee with Lucas Garron from 2012 to 2015, directing a complete redrafting of the official competition regulations and guidelines during his tenure. Recently, he has received media attention as the subject of several viral images and video clips at various college sporting events.
Krishnam Raju Gadiraju is an accomplished Indian speedcuber and unicyclist. He is a six-time world record holder and the first Indian to ever set a world record in speedcubing and unicycling.
