Orientation-Preserving F2L
Last F2L pair cases with all U-pieces correctly oriented have easy recognition. These algorithms solve the last pair and the last-layer orientation, leaving PLL. Of course, the list excludes pair patterns where the corner or the edge is incorrectly oriented in place. The better algorithms may be worth learning.
Although certain algorithms had been known, this page (first published in August 2010) is the first complete list of such cases.
- Io
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- (U)L'U2RUR'U2'L
- winter variation case
- (U')L'U2RU'R'U2'L
- inverse; actually better
- B'URU'R'U'B
- for reference; inverse also works
- If
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- yU'RU2'L'U'LU2'R'
- winter varitaion case
- yURU2'L'ULU2'R'
- inverse; actually better
- y'R'F'RUR'U'R'FR2
- from Mario Laurent
- y'FU'R'URUF'