Layer-by-layer method: Difference between revisions

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{{about|the Rubik's Cube method|the thin film fabrication technique|Layer by layer}}

The '''Layer by Layer Method''' is a method of solving the 3x3x3 [[Rubik's Cube]]. ThisMany beginner's methods use this approach, but it also forms the basis of the [[CFOP]] speedcubing
technique.

==History==
The Layer by Layer Method was pioneered by [[David Singmaster]] in his 1980 book ''Notes on Rubik's "Magic Cube"''.<ref name="linkedresources">{{cite web

|url = http://www.linkedresources.com/teach/rubik/solution.php

|title = A Step by Step Solution of Rubik's "Magic Cube"

Line 15 ⟶ 19:

|archiveurl = https://web.archive.org/web/20150926083418/http://www.ryanheise.com/cube/beginner.html

|archivedate = 2015-09-26

}}</ref> The same approachidea was adopted by James G. Nourse in his ''[[The Simple Solution to Rubik's Cube]]'' which became the bestselling book of 1981.,<ref name="upi">{{Cite news|url=http://www.upi.com/Archives/1982/01/05/BEST-SELLER/3264379054800/|last=Hanauer|first=Joan|title=The man who wrote the best-selling book of 1981|date=5 January 1982|publisher=United Press International}}</ref> and similar approaches could be found in Don Taylor's ''Mastering Rubik's Cube'' and Cyril Östrop's ''Solving the Cube'' from the same era.<ref name="phil">[http://helm.lu/cube/MarshallPhilipp/page_1.htm A Comparison of Various Methods], Philip Marshall, 2005</ref>

==Method==

It starts by making a cross on one face with the edge pieces, then putting the corners into position between the edges. By then the layer should be solved. Third, the four edge pieces of the middle layer are solved. At this point therethe isfirst atwo 2x3x3layers blockare solved. Fourth, a cross of the opposite color is made on the last layer. Fifth, the last layer edges are permuted. Sixth, the last layer corners are permuted. Finally, the last layer corners are oriented.<ref>[http://www.learnhowtosolvearubikscube.com/how-to-solve-a-rubiks-cube-solution-overview/ Eight steps: layer by layer method to the Rubik's cube]</ref>

[[File:Rubik's Cube layer by layer solution overview.jpg|thumb|center|400px|an overview of the layer by layer method for Rubik's Cube]]

Most Layer by Layer beginner's methods solve the first two layers using the same technique. However, there are many variations for the final layer, depending on whether the corner or edge pieces are solved first.

<ref name="phil"/>

==CFOP==

{{Main|CFOP}}

The CFOP speedcubing

technique, developed by [[Jessica Fridrich]] and others in the 1980s, similarly divides the puzzle into layers to be solved. However the method uses far more algorithms and shortcuts than the beginner's methods.<ref>

[http://ukcubestore.com/cfop-tutorial.html CFOP tutorial: UKCubeStore]</ref>

==References==