Search results
Results from the WOW.Com Content Network
Cube mid-solve on the OLL step. The CFOP method (Cross – F2L (first 2 layers) – OLL (orientate last layer) – PLL (permutate last layer)), also known as the Fridrich method, is one of the most commonly used methods in speedsolving a 3×3×3 Rubik's Cube. It is one of the fastest methods with the other most notable ones being Roux and ZZ.
The cube restricted to only 6 edges, not looking at the corners nor at the other edges. The cube restricted to the other 6 edges. Clearly the number of moves required to solve any of these subproblems is a lower bound for the number of moves needed to solve the entire cube. Given a random cube C, it is solved as iterative deepening. First all ...
The method starts by creating a cross on any side of the cube, followed by F2L where 4 corner edge pairs are inserted into the cross, followed by OLL (Orientation of the Last Layer) where the top side is solved in 1 of 57 algorithms, and finally PLL (Permutation of the Last Layer) where you do 1 of 21 algorithms to solve the rest of the cube.
Non-human solving: The fastest non-human Rubik's Cube solve was performed by Rubik's Contraption, a robot made by Ben Katz and Jared Di Carlo. A YouTube video shows a 0.38-second solving time using a Nucleo with the min2phase algorithm. [98] Highest order physical n×n×n cube solving: Jeremy Smith solved a 21x21x21 in 95 minutes and 55.52 seconds.
The following are the official speedcubing world records approved by the WCA as of 15 February 2025. [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.
A scrambled Rubik's Cube. An algorithm to determine the minimum number of moves to solve Rubik's Cube was published in 1997 by Richard Korf. [10] While it had been known since 1995 that 20 was a lower bound on the number of moves for the solution in the worst case, Tom Rokicki proved in 2010 that no configuration requires more than 20 moves. [11]
On 22 June 2024 in Johor Bahru, Malaysia, Wang achieved a world record average of 0.78 seconds on the 2×2×2.The manner in which Wang started the competition-standard StackMat timer drew criticism; frame-by-frame analysis of the solves revealed that Wang had touched or even begun turning the puzzle before lifting his hands off the timer in some of the solves, [12] both of which constitute ...
Graphs of functions commonly used in the analysis of algorithms, showing the number of operations versus input size for each function. The following tables list the computational complexity of various algorithms for common mathematical operations.