Difference between revisions of "LSE"

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{{Method Infobox
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{{Substep Infobox
|name=Last Six Edges
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|name=LSE
 
|image=Roux_method.gif
 
|image=Roux_method.gif
 
|proposers=[[Gilles Roux]]
 
|proposers=[[Gilles Roux]]
 
|year=2003
 
|year=2003
|anames=LSE
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|anames=Last Six Edges, L6E
|variants=[[ELL]], [[L5E]]
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|variants=[[ELL]], [[L5E]], [[L7E]]
|steps=1
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|subgroup=
 
|moves=
 
|moves=
 
|purpose=<sup></sup>
 
|purpose=<sup></sup>
 
* [[Speedsolving]]
 
* [[Speedsolving]]
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|previous=[[6 Edges missing UM cube state]]
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|next=[[Solved cube state]]
 
}}
 
}}
  
'''Last Six Edges''', abbrevaited '''LSE''' or '''L6E''', is the last [[step]] of the [[Roux Method]].
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'''LSE''', also called '''L6E''', short for '''Last Six Edges''', is a possible last [[step]] in 3x3 speedsolving that solves the M-slice centers and edges (UF, UB, DF, DB) together with UL and UR edges. It is the last step of the [[Roux Method]] and the [[Ortega Method]].
  
The original Roux method have three sub steps for LSE:
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== Possible approaches ==
* Orientation of centres and edges.
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LSE can be solved in various ways; [[Gilles Roux]] himself, the inventer of the Roux Method, advocates a flexible/semi-intuitive approach to LSE without a strict division into substeps. The optimal approach is likely a combination of the approaches below.
* Permutation of UR and UL edges.
 
* Permutation of the M slice.
 
  
Many other styles are also in use, for example you can solve the last of F2L, centres, BD and FD and do [[ELL]] or just centres and BD and end in [[L5E]].
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'''Layers-based approach'''
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* 1. centers, BD, and FD
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* 2. [[ELL]]
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This layer-based approach seems out of place in any method ending with LSE.
  
{{stub}}
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'''Original Roux'''
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* 1. Orient centers and edges
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* 2. Permute UR and UL edges
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* 3. Permute the M slice
  
[[Category:Methods]]
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The following two approaches are commonly used in [[Corners first]] methods.
[[Category:3x3x3 Methods]]
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[[Category:Last Layer Methods]]
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'''Corners First approach 1'''
[[Category:Cubing Terminology]]
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* 1. Solve UL or UR
[[Category:Sub Steps]]
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* 2. Insert UL/UR while orienting the M slice
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* 3. Permute the M slice
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'''Corners First approach 2'''
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* 1. Solve both UL and UR
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* 2. Orient and permute the M slice
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Reduction to L5E has been proposed as an experimental approach.
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'''L5E'''
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* 1. Centers and BD
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* 2. [[L5E]]
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== External links ==
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* [http://grrroux.free.fr/method/Step_4.html Standard Method]
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* [http://rubikscube.info/lastsix2look.html 2.5 Look]
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* [http://www.speedsolving.com/forum/showthread.php?37658-Roux-method-An-alternate-way-of-solving-the-last-6-edges&p=760583&viewfull=1#post760583 Robert Yau's Alternative]
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* [http://www.speedsolving.com/forum/showthread.php?9095-Playing-With-Roux-Orientations UL/UR to DF/DB Method]
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* [http://www.speedsolving.com/forum/showthread.php?23916-2-step-finish-for-Roux-Edges Two Step Method]
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* [http://www.speedsolving.com/forum/showthread.php?35350-Roux-4b-to-4c-Transition Roux 4b-4c Transition]
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* [https://www.speedcubingtips.eu/lse-eo-last-6-edges-edges-orientation/ speedcubingtips.eu LSE page]
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* [https://www.speedcubingtips.eu/2019/07/22/lse-eolr-methode-roux/ speedcubingtips.eu LSE-EOLR page]
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[[Category:3x3x3 other substeps]]

Latest revision as of 01:07, 30 August 2019

LSE
Roux method.gif
Information
Proposer(s): Gilles Roux
Proposed: 2003
Alt Names: Last Six Edges, L6E
Variants: ELL, L5E, L7E
Subgroup:
No. Algs: unknown
Avg Moves:
Purpose(s):
Previous state: 6 Edges missing UM cube state
Next state: Solved cube state

6 Edges missing UM cube state -> LSE step -> Solved cube state


The LSE step is the step between the 6 Edges missing UM cube state and the Solved cube state.

LSE, also called L6E, short for Last Six Edges, is a possible last step in 3x3 speedsolving that solves the M-slice centers and edges (UF, UB, DF, DB) together with UL and UR edges. It is the last step of the Roux Method and the Ortega Method.

Possible approaches

LSE can be solved in various ways; Gilles Roux himself, the inventer of the Roux Method, advocates a flexible/semi-intuitive approach to LSE without a strict division into substeps. The optimal approach is likely a combination of the approaches below.

Layers-based approach

  • 1. centers, BD, and FD
  • 2. ELL

This layer-based approach seems out of place in any method ending with LSE.

Original Roux

  • 1. Orient centers and edges
  • 2. Permute UR and UL edges
  • 3. Permute the M slice

The following two approaches are commonly used in Corners first methods.

Corners First approach 1

  • 1. Solve UL or UR
  • 2. Insert UL/UR while orienting the M slice
  • 3. Permute the M slice

Corners First approach 2

  • 1. Solve both UL and UR
  • 2. Orient and permute the M slice

Reduction to L5E has been proposed as an experimental approach.

L5E

  • 1. Centers and BD
  • 2. L5E

External links