Links
- A *must* see video on how to quickly recognizes the PLL based on features like headlights, bar, pairs...
The 21 PLL cases
Source: http://www.cubewhiz.com/pll.php
Corners Only
Name |
Diagram |
Algorithm |
Comments
|
Aa
|
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x (R' U R') D2 (R U' R') D2 R2
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This is a basic corner 3-cycle. It is one of my favorite and fastest algorithms. Perform the D2s with the left hand and everything else with the right.
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Ab
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x R2 D2 (R U R') D2 (R U' R)
[y'] x (L U' L) D2 (L' U L) D2 L2
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This is just the inverse of the other A perm. It is performed in a very similar manner.
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E
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x' (R U') (R' D) (R U R' D') (R U R' D) (R U') (R' D')
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This alg is just two orientations performed consecutively.
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Edges Only
Name |
Diagram |
Algorithm |
Comments
|
Ua
|
|
(R U' R U) (R U) (R U') (R' U' R2)
[y2] (R2 U' (R' U' R U) (R U) (R U' R)
|
This is just a simple 3-edge cycle. It is almost as fast as the corner cycles. I solve this case with the bar at the front or the back.
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Ub
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(R2 U) (R U R' U') (R' U') (R' U R')
[y2] (R' U R' U') (R' U') (R' U) (R U R2)
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This is the inverse of the other U perm. I place my hands slightly differently for this algorithm. I solve this case with the bar at the front or the back.
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H
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(M2' U) (M2' U2) (M2' U) M2'
(M2' U') (M2' U2') (M2' U') M2'
|
This is extremely easy to recognize and can be performed VERY quickly. The M'2 is actually performed as (M'M') with rapid pushing at the back face of the M layer with the ring and then middle fingers.
|
Z
|
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(M2' U) (M2' U) (M' U2) (M2' U2) (M' U2)
(M2' U') (M2' U') (M' U2') (M2' U2') (M' U2')
|
The Z permutation is performed very similarly to the H perm. The last U2 is not necessary if you account for it before the algorithm.
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Swapping Two Adjacent Corners & Two Edges
Cycling Three Corners & Three Edges
To recognize these PLLs:
- Put the HEADLIGHT on the left
- Observe the position of the BLOCK: if it is as the FRONT (resp. FAR RIGHT, BACK and CLOSE RIGHT), then it is a Ga (resp. Gb, Gc and Gd) permutation.
To remember the algorithms, observe the sequence of RIGHT face versus sequence of UP face:
- Ga:
R2 R' R' R
vs Uw U U' Uw'
- Gb:
R2 R' R R
vs Uw U U' Uw'
- Gc:
R2' R R R'
vs Uw' U' U Uw
- Gd:
R2' R R' R'
vs Uw' U' U Uw
Name |
Diagram |
Algorithm |
Comments
|
Ga
|
|
(R2' Uw) (R' U R' U' R Uw') R2' y' (R' U R)
|
This alg has a pretty decent flow to it and can be performed almost in one motion until the rotation.
|
Gb
|
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(R' U' R) y (R2' Uw R' U) (R U' R Uw' R2')
|
This is the inverse of Ga. Note how similar they look. I perform this one almost exactly the same way.
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Gc
|
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(R2' Uw' R U') (R U R' Uw R2) (Fw R' Fw') (Start with thumb on U face)
|
You could rotate and insert the pair instead of performing the last three moves as shown.
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Gd
|
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(R U R') y' (R2' Uw' R U') (R' U R' Uw R2)
|
This is just the inverse of Gc. I execute it very similarly because most of the moves overlap in the same manner.
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Permutations Of Two Diagonal Corners & Two Edges
The Na / Nb permutation variants come from Finger Trick - How to Execute the N Perms Like a Pro (cyotheking).
Name |
Diagram |
Algorithm |
Comments
|
V
|
|
(R' U R' Dw') (R' F' R2 U') (R' U R' F) (R F)
|
This is one of my least favorite permutations because the flow just isn't there.
|
Na
|
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(z) D (R' U) (R2 D' R D U') (R' U) (R2 D' R U' R)
z U _(R' D)_ (R2 U' R U D') _(R' D)_ (R2 U' R D' [R])
|
This alg could also be performed using <R,U,L> if you don't do the rotation, but this way is faster with practice.
For the 2nd variant:
- Use normal grip after
z
- RH sexy regrip during the first and second
U'
- Last
R assumes following start position (X means cube at correct position)
(B)
. . X
(L) X X X (R)
X . .
(F)
- After
z U face must have the following pattern:
X X .
X X X
X X X
|
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Nb
|
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(z) U' (R D') (R2' U R' D U') (R D') (R2' U R' D R')
z U' (R D') (R2 U R' D U') (R D') R2 U R' D [R]
|
This is just the mirror of the other N permutation.
For the 2nd variant:
- Use normal LH grip, RH sexy grip after
z
- RH sexy regrip for both
R2 . All U , D' done with RH.
- Last
R assumes following start position (X means cube at correct position)
(B)
. X X
(L) . X . (R)
X X .
(F)
- After
z U face must have the following pattern:
X X .
X X .
X X X
|
Y
|
|
(F R U') (R' U' R U) (R' F') (R U R' U') (R' F R F')
|
This is very quick and can be performed without any adjustments of where the fingers are. It is just a combination of two quick orientations.
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