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Pocket cube with one layer partially turned. The group theory of the 3×3×3 cube can be transferred to the 2×2×2 cube. [3] The elements of the group are typically the moves of that can be executed on the cube (both individual rotations of layers and composite moves from several rotations) and the group operator is a concatenation of the moves.
Vincent Sheu has been an active speedcuber since 2006. [8] He typically uses the CFOP method, a layer-by-layer system popularized by Jessica Fridrich in 1997. [9] In 2011, Sheu tied the existing world record for a 2x2x2 single solve with a time of 0.96 seconds at the Berkeley Winter Cube Competition. [10]
It can be proven by counting arguments that there exist positions needing at least 18 moves to solve. To show this, first count the number of cube positions that exist in total, then count the number of positions achievable using at most 17 moves starting from a solved cube.
The following are the current official speedcubing world records approved by the WCA. [4]Note: For averages of 5 solves, the best time and the worst time are dropped, and the mean of the remaining 3 solves is taken.
The Pyramorphix in its solved state The Pyramorphix, scrambled. The Pyramorphix (/ ˌ p ɪ r ə ˈ m ɔːr f ɪ k s /), also called Pyramorphinx, is a tetrahedral puzzle similar to the Rubik's Cube.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 September 2024. Dutch speedsolver Mats Valk Valk in 2016 Born (1996-05-04) 4 May 1996 (age 28) Amstelveen Nationality Dutch Occupation Student Years active 2007-present Known for Rubik's Cube speedsolver Medal record Representing Netherlands Speedcubing WCA World Championship Event 1 st 2 nd 3 rd 3×3 ...
Feliks Aleksanders Zemdegs [1] (/ ˈ f ɛ l ɪ k s ˈ z ɛ m d ɛ ɡ z /, Latvian: Fēlikss Zemdegs; born 20 December 1995) is an Australian Rubik's Cube speedsolver.He is one of only two speedcubers ever to win the World Cube Association World Championship twice (the other being Max Park), winning in 2013 and 2015, and is widely considered the most successful and greatest speedcuber of all time.
Petrus grew up in Gammelstaden just outside of Luleå. [4]He took up speedcubing in the early 1980s, learning it over the course of a summer when he was unemployed. [5] In 1982, he became the national champion of Sweden, and went on to finish fourth overall at the first official Rubik's Cube World Championships held in Budapest, Hungary.