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Speedsolving
Speedcubing (also known as speedsolving, or cubing) is a competitive sport involving solving a variety of combination puzzles, the most famous being the 3x3x3 puzzle or Rubik's Cube, as quickly as possible. An individual who practices solving twisty puzzles is known as a speedcuber (when solved specifically focusing on speed), or a cuber. For most puzzles, solving involves performing a series of moves or sequences that alters a scrambled puzzle into a solved state, in which every face of the puzzle is a single, solid color. Competitive speedcubing is mainly regulated by the World Cube Association (WCA). The WCA currently recognizes 17 speedcubing events: the cubic puzzles from the 2x2–7x7, the Pyraminx, Megaminx, Skewb, Square-1, and Rubik's Clock, as well as the 3x3, 4x4, and 5x5 Blindfolded, 3x3 One-handed, 3x3 Fewest Moves, and 3x3 Multi-blind. , the 3x3x3 world record single is 3.47 seconds held by Yusheng Du. The 3x3x3 world record average is 4.86 seconds, tied by Max P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubik's Cube
The Rubik's Cube is a Three-dimensional space, 3-D combination puzzle originally invented in 1974 by Hungarians, 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 Company, 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 Spiel des Jahres, German Game of the Year special award for Best Puzzle. , 350 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. On the original classic Rubik's Cube, each of the six faces was covered by nine stickers, each of one of six solid colours: white, red, blue, orange, green, and yellow. Some later versions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feliks Zemdegs
Feliks Aleksanders Zemdegs (, lv, Fēlikss Zemdegs; born 20 December 1995) is an Australian Rubik's Cube speedsolver. He is the only speedcuber 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, 210 continental records, and 6 national records. Biography Feliks Zemdegs is of Latvian descent and his maternal grandmother is Lithuanian. Zemdegs bought his first speedcube in April 2008 after being inspired by speedcubing videos and tutorials on YouTube. The first unofficial time he recorded was an average of 19.73 seconds on 14 June 2008. He has been using CFOP to solve the 3×3×3 since he was 12 years old, the Yau method to solve the 4×4×4 and 5x5x5, the CLL method to solve the 2×2×2, and the Reduction method for 6x6x6 and 7×7×7. Zemdegs won the 3×3×3 event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Square-1 (puzzle)
The Square-1 is a variant of the Rubik's Cube. Its distinguishing feature among the numerous Rubik's Cube variants is that it can change shape as it is twisted, due to the way it is cut, thus adding an extra level of challenge and difficulty. The Super Square One and Square Two puzzles have also been introduced. The Super Square One has two additional layers that can be scrambled and solved independently of the rest of the puzzle, and the Square Two has extra cuts made to the top and bottom layer, making the edge and corner wedges the same size. History The Square-1 (full name "''Back to Square One''") or alternatively, "''Cube 21''", was invented by Karel Hršel and Vojtěch Kopský in 1990. Application for a Czechoslovak patent was filed on 8 November 1990, then filed as a "priority document" on January 1, 1991. The patent was finally approved on 26 October 1992, with patent number CS27726 On March 16, 1993, the object itself was patented in the US with patent number US5,1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fridrich Method
The CFOP method (Cross – F2L – OLL – PLL), sometimes known as the Fridrich method, is one of the most commonly used methods in speedsolving a 3×3×3 Rubik's Cube. This method was first developed in the early 1980s combining innovations by a number of speed cubers. Czech speedcuber and the namesake of the method Jessica Fridrich is generally credited for popularizing it by publishing it online in 1997. The method works on a layer-by-layer system, first solving a cross typically on the bottom, continuing to solve the first two layers (F2L), orienting the last layer (OLL), and finally permuting the last layer (PLL). There are 78 algorithms in total to learn for OLL and PLL but there are other algorithm sets like ZBLL and COLL that can be learned as an extension to CFOP to improve solving efficiency. History Basic layer-by-layer methods were among the first to arise during the early 1980s craze. David Singmaster published a layer-based solution in 1980 which proposed the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFOP Method
The CFOP method (Cross – F2L – OLL – PLL), sometimes known as the Fridrich method, is one of the most commonly used methods in speedsolving a 3×3×3 Rubik's Cube. This method was first developed in the early 1980s combining innovations by a number of speed cubers. Czech speedcuber and the namesake of the method Jessica Fridrich is generally credited for popularizing it by publishing it online in 1997. The method works on a layer-by-layer system, first solving a cross typically on the bottom, continuing to solve the first two layers (F2L), orienting the last layer (OLL), and finally permuting the last layer (PLL). There are 78 algorithms in total to learn for OLL and PLL but there are other algorithm sets like ZBLL and COLL that can be learned as an extension to CFOP to improve solving efficiency. History Basic layer-by-layer methods were among the first to arise during the early 1980s craze. David Singmaster published a layer-based solution in 1980 which proposed the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Park
Max Park is an American Rubik's Cube speedsolver who is currently tied with Tymon Kolasiński of Poland for the world record average of five 3×3×3 solves (by WCA standards), 4.86 seconds, set on 24 September 2022. Park first held this record from 23 April 2017 to 28 June 2017 and was the only cuber other than Feliks Zemdegs to hold the record between 27 September 2009 and 5 June 2021.World Cube Association 3×3×3 History/ref> Park has also set multiple world records in speedsolving the 4×4×4, 5×5×5, 6×6×6, and 7×7×7 cubes, and the 3×3×3 one-handed.World Cube Association Max Park Records/ref> As of 20 November 2022, he has won 391 total events in World Cube Association competitions. Early life Max Park was born on November 28, 2001, in Cerritos, California. When Park was two years old, he was diagnosed with moderate to severe autism. His parents, Miki and Schwan Park, were told that he might need lifelong care. Park's motor skills were severely impaired because of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubik's Clock
Rubik's Clock is a mechanical puzzle invented and patented by Christopher C. Wiggs and Christopher J. Taylor. The Hungarian sculptor and professor of architecture Ernő Rubik bought the patent from them to market the product under his name. It was first marketed in 1988. Rubik's Clock is a two-sided puzzle, each side presenting nine clocks to the puzzler. There are four wheels, one at each corner of the puzzle, each allowing the corresponding corner clock to be rotated directly. (The corner clocks, unlike the other clocks, rotate on both sides of the puzzle simultaneously and can never be operated independently. Thus the puzzle contains only 14 independent clocks.) There are also four buttons which span both sides of the puzzle; each button arranged such that if it is "in" on one side it is "out" on the other. The state of each button (in or out) determines whether the adjacent corner clock is mechanically connected to the three other adjacent clocks on the front side or on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jessica Fridrich
Jessica Fridrich is a professor at Binghamton University, who specializes in data hiding applications in digital imagery. She is also known for documenting and popularizing the CFOP method (sometimes referred to as the "Fridrich method"), one of the most commonly used methods for speedsolving the Rubik's Cube, also known as speedcubing.Specializing in Problems That Only Seem Impossible to Solve By Bina Venkataraman, Published: December 15, 2008, The New York Times She is considered one of the pioneers of speedcubing, along with . Nearly all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyraminx
The Pyraminx () is a regular tetrahedron puzzle in the style of Rubik's Cube. It was made and patented by Uwe Mèffert after the original 3 layered Rubik's Cube by Ernő Rubik, and introduced by Tomy Toys of Japan (then the 3rd largest toy company in the world) in 1981. Description The Pyraminx was first conceived by Mèffert in 1970. He did nothing with his design until 1981 when he first brought it to Hong Kong for production. Uwe is fond of saying had it not been for Ernő Rubik's invention of the cube, his Pyraminx would have never been produced. The Pyraminx is a puzzle in the shape of a regular tetrahedron, divided into 4 axial pieces, 6 edge pieces, and 4 trivial tips. It can be twisted along its cuts to permute its pieces. The axial pieces are octahedral in shape, although this is not immediately obvious, and can only rotate around the axis they are attached to. The 6 edge pieces can be freely permuted. The trivial tips are so called because they can be twisted i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skewb
The Skewb () is a combination puzzle and a mechanical puzzle in the style of the Rubik's Cube. It was invented by Tony Durham and marketed by Uwe Mèffert. Although it is cubical in shape, it differs from Rubik's construction in that its axes of rotation pass through the corners of the cube rather than the centres of the faces. There are four such axes, one for each space diagonal of the cube. As a result, it is a ''deep-cut'' puzzle in which each twist affects all six faces. Mèffert's original name for this puzzle was the ''Pyraminx Cube'', to emphasize that it was part of a series including his first tetrahedral puzzle. the Pyraminx. The catchier name Skewb was coined by Douglas Hofstadter in his ''Metamagical Themas'' column. Mèffert liked the new name enough to apply it to the Pyraminx Cube, and also named some of his other puzzles after it, such as the Skewb Diamond. Higher-order Skewbs, named Master Skewb and Elite Skewb, have also been made. In December 2013, Skewb was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyson Mao
Tyson Mao (born May 8, 1984, in San Francisco, California) 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. Personal Tyson Mao was born in San Francisco to immigrant parents from Tainan, Taiwan. He lives in the San Francisco Bay Area and previously used to work as a Poker Product Manager for Zynga. Mao graduated from the California Institute of Technology in 2006 with a degree in astrophysics. His father is a doctor based in South San Francisco. In 2017, Mao opened the Wursthall Restaurant & Bierhaus in San Mateo, California with partners Adam Simpson and J. Kenji López-Alt. Rubik's Cube Tyson began solving the cube during the Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Singmaster
David Breyer Singmaster (born 1938) is an emeritus professor of mathematics at London South Bank University, England. A self-described metagrobologist, he has a huge personal collection of mechanical puzzles and books of brain teasers. He is most famous for being an early adopter and enthusiastic promoter of the Rubik's Cube. His ''Notes on Rubik's "Magic Cube"'' which he began compiling in 1979 provided the first mathematical analysis of the Cube as well as providing one of the first published solutions. The book contained his cube notation which allowed the recording of Rubik's Cube moves, and which quickly became the standard. He is both a puzzle historian and a composer of puzzles, and many of his puzzles have been published in newspapers and magazines. In combinatorial number theory, Singmaster's conjecture states that there is an upper bound on the number of times a number other than 1 can appear in Pascal's triangle. Career David Singmaster was a student at the Californi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
