2x2 ORTEGA/VARASANO TUTORIAL

I have no advanced 2x2 tutorials on this site, but I can point you to some resources elsewhere.

Waterman Method

In a nutshell:

  1. Solve one layer.
  2. Use one of 42 CLL algorithms to orient and permute the last layer simultaneously.
Two of the 42 CLL algorithms are PLLs.

Erik-Gunnar (EG) Method

In a nutshell:

  1. Solve one side. (This is the same first step as the Ortega/Varasano method.)
  2. Use one of 128 algorithms to orient the opposite side and permute the entire cube.
Roughly one-third of these algorithms are the 42 CLL algorithms used in the Waterman method. The other algorithms peform CLL on the last layer while swapping two pieces on the bottom layer, either adjacent (EG 1) or opposite (EG 2) corners.

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