Speedcubing (also known as speedsolving) is the sport involving solving a variety of twisty puzzles, the most famous being the Rubik's Cube, as quickly as possible. For most puzzles, solving entails performing a series of moves that alters a scrambled puzzle into a state in which every face of the puzzle is a single, solid color. Some puzzles have different requirements to be considered solved, such as the Clock, for which all the dials must be moved into the 12 'o clock position.
The standard puzzle sizes are Pocket Cube, Rubik's Cube, Rubik's Revenge, Professor's Cube, V-Cube 6, and V-Cube 7, although variations of the puzzle have been designed with as many as 33 layers, albeit not mass-produced for the public. There are also different shapes of the famous puzzles, including Pyraminx, Megaminx, Skewb, and Square-1. The world record for a single 3x3x3 solve is 4.22 seconds, set by Feliks Zemdegs at Cube for Cambodia 2018. Zemdegs also holds the average of five 3x3x3 solves world record of 5.80 seconds, set at Malaysia Cube Open 2017.
Speedcubing is a popular activity among the international Rubik's Cube community, or cubers. Members come together to hold competitions, work to develop new solving methods, and seek to perfect their technique.