Difference between revisions of "2-Look PLL"

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This PLL system is used to permute the last layer after orientation.  Of the 21 cases, only 7 are needed for 2-Look PLL.  Permutation is broken into 2 steps: corner permutation (three cases), and edge permutation (four cases).
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This PLL system is used to permute the last layer after orientation.  Of the 21 cases, only 8 are needed for 2-Look PLL.  Permutation is broken into 2 steps: corner permutation (four cases) and edge permutation (four cases).
  
* Step 1: '''Permutation of Corners'''. Requires 2 algorithms , to carry out:
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* Step 1: '''Permutation of Corners'''. Requires 4 algorithms to carry out (3 excluding mirrors):
*# adjacent corner swap ([[PLL#A Permutation : a|A-perm]])
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*# clockwise 3-corner cycle ([[PLL#A Permutation : a|A-perm a]])
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*# anticlockwise 3-corner cycle ([[PLL#A Permutation : b|A-perm b]])
 
*# diagonal corner swap (any of [[PLL#Y Permutation|Y-Perm]], [[PLL#V Permutation|V-Perm]], [[PLL#E Permutation|E-Perm]], [[PLL#N Permutation : a|N-Perm]])
 
*# diagonal corner swap (any of [[PLL#Y Permutation|Y-Perm]], [[PLL#V Permutation|V-Perm]], [[PLL#E Permutation|E-Perm]], [[PLL#N Permutation : a|N-Perm]])
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*# adjacent corner swap ([[PLL#J Permutation : a|J-perm]])
  
 
* Step 2: '''Permutation of Edges'''. Uses 4 algorithms (3 excluding mirrors):
 
* Step 2: '''Permutation of Edges'''. Uses 4 algorithms (3 excluding mirrors):

Revision as of 08:52, 8 July 2014

This PLL system is used to permute the last layer after orientation. Of the 21 cases, only 8 are needed for 2-Look PLL. Permutation is broken into 2 steps: corner permutation (four cases) and edge permutation (four cases).

  • Step 1: Permutation of Corners. Requires 4 algorithms to carry out (3 excluding mirrors):
    1. clockwise 3-corner cycle (A-perm a)
    2. anticlockwise 3-corner cycle (A-perm b)
    3. diagonal corner swap (any of Y-Perm, V-Perm, E-Perm, N-Perm)
    4. adjacent corner swap (J-perm)
  • Step 2: Permutation of Edges. Uses 4 algorithms (3 excluding mirrors):
    1. clockwise 3-edge cycle (U-perm a)
    2. anticlockwise 3-edge cycle (U-perm b)
    3. opposite edges swap (H-Perm)
    4. adjacent edges swap (Z-Perm)

See also

External links