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A solved Rubik's Revenge cube. The Rubik's Revenge (also known as the 4×4×4 Rubik's Cube) 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. [1]
The first is to count the number of quarter turns. The second is to count the number of outer-layer twists, called "face turns". A move to turn an outer layer two quarter (90°) turns in the same direction would be counted as two moves in the quarter turn metric (QTM), but as one turn in the face metric (FTM, or HTM "Half Turn Metric"). [1]
Anybody who can solve a size 4 cube should be able to solve cubes of larger size provided they accept an increased time-to-solve penalty. Software design features, unavailable in hardware cubes, can simplify the cube solving process. For a given set of cube design features the complexity (difficulty) of solving a Rubik’s family cube increases ...
Layer-by-layer (LbL) deposition is a thin film fabrication technique. The films are formed by depositing alternating layers of complementary materials with wash steps in between. This can be accomplished by using various techniques such as immersion, spin, spray, electromagnetism, or fluidics. [1]
The Super Square One is a 4-layer version of the Square-1. Just like the Square-1, it can adopt non-cubic shapes as it is twisted. As of 2009, it is sold by Uwe Mèffert in his puzzle shop, Meffert's. It consists of 4 layers of 8 pieces, each surrounding a circular column which can be rotated along a perpendicular axis.
An approach related derived from self-aligned spacer double patterning is so-called "anti-spacer" double patterning. In this approach a first layer coating the mandrel is eventually removed, while a second coated layer over the first layer is planarized and retained. A purely spin-on and wet-processed approached has been demonstrated. [3]
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.
Pyraminx in its solved state. The Pyraminx (/ ˈ p ɪ r ə m ɪ ŋ k s /) 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.