Two-Look OLL and Two-Look PLL

Two-Look OLL and PLL split each of the two steps of Fridrich last layer into two, corners and edges. As this greatly reduces the number of algorithms required, these serve as perfect stepping stones before advancing to full PLL and OLL.

Two-Look OLL

These algorithms are all taken straight from my full OLL. One of three algorithms (OLL 1, 44, 45) corrects the edge orientation, and then corner orientation is corrected while preserving the edge orientation using one of the seven algorithms (OLL 21-27). For edge orientation, any algorithm with the same effect on the edges can be used; 1, 44, and 45 are just particularly easy to execute.

Edge Orientation

Codes	Pattern	Algorithm	How It's Done
a (1)		RU2'-R2'FRF'U2'-R'FRF'
b (44)		FwRUR'U'F'w
c (45)		FRUR'U'F'

Corner Orientation

Codes	Pattern	Algorithm	How It's Done
21 H7 06-1		RU-R'URU'R'UR-U2R'
22 H6 49-1	video (won't help)	RU2'-R2'U'R2U'R2'-U2R
23 H1 50-3		L2wU'R-D2-R'UR-D2R
24 H2 51-4		RwUR'U'R'wFRF'
25 H3 56-2		Lw'U'L'U-RU'LUx'
26 H5 55-1		L'U'LU'L'U2L
27 H4 54-2		RUR'URU2R'

Two-Look PLL

Corner Permutation

If the corner permutation is not solved, we can always place two of the corners in the correct spot with AUF (appropriate Adjustment of U Face) so that we only have two cases. If the two corners to be swapped are adjacent, there will be two adjacent corners sharing the same color on the same side. Bring these to the front and rotate the bottom two layers until the back-left corner is matched. We recognize this as a 3-cycle:

Codes	Pattern	Algorithm	How It's Done
n3 A	Single: 1.59 Four: ()	RB'R-F2-R'BR-F2R2

We never need the other direction.

The other possibility is that the corners to be swapped are on a diagonal. There are several PLL algorithms that do this, all of them relatively long. I recommend the following:

Codes	Pattern	Algorithm	How It's Done
n15 Y	Single: 1.91 Four: 9.01 (2.25)	FRU'R'U'RUR'F'-RUR'U'R'FRF'

Edge Permutation

Codes	Pattern	Algorithm	How It's Done
n1 U	Single: 1.64 Four: 6.16 (1.54)	R'UR'U'-R'U'-R'URUR2
n2 U	Single: 1.26 Four: 5.97 (1.49)	R2U'R'U'RURURU'R
n5 Z	Single: 1.84 Four: 8.32 (2.08)	UR'U'RU'RURU'R'URUR2U'R'U
n6 H	Single: 1.61 Four: 6.96 (1.74)	M2UM2U2M2UM2

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