Edges are labelled from right, up, left and down E, F, G, H
circular edges clockwise F fixed
|M2 U' M U2 M' U' M2|
circular edges counterclockwise F fixed
|M2 U M U2 M' U M2|
Memorization: (M2 U' M) U2 (M' U' M2): M2 M M' M2 interwoven with U' U2 U'
Memorization: (M2 U M) U2 (M' U M2): M2 M M' M2 interwoven with U U2 U (U is opposite of the previous one)
2 pairs or edges are swapped, opposite (forming a cross) or adjacent (forming 2 parallel slash).
swap EF and GH
|M2 U M2 U M' U2 M2 U2 M' U2|
swap 2 orthogonal pairs
|M2 U M2 U2 M2 U M2|
Memorization: (M2 U) (M2 U) (M' U2) (M2 U2) (M' U2): M2 M2 M' M2 M' interwoven with U U U2 U2 U2
Memorization: (M2 U M2) U2 (M2 U M2)