ELS R0
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Find the pair's shape as for F2L, then count the misoriented last-layer edges (a top edge whose top facet does not show the top colour).
Your status
Algorithms (7)
R U2 R' U R U' R'
My choice
7 HTM · 7 STM · 8 QTM
2-gen
rotationless
oh
<U,R>
Cubemuch
R U2 R' U2 R U2 R'
7 HTM · 7 STM · 10 QTM
2-gen
rotationless
oh
<U,R>
Cubemuch
R U R' L U' R U R' L'
9 HTM · 9 STM · 9 QTM
3-gen
rotationless
<U,R,L>
Cubemuch
L' U' R L U2 L' U' R' L
9 HTM · 9 STM · 10 QTM
3-gen
rotationless
<U,R,L>
Cubemuch
(U') first, then:
R U' R U R' U R U2 R2
9 HTM · 9 STM · 11 QTM
2-gen
rotationless
oh
<U,R>
Do U' first (AUF) on the case as drawn. · Cubemuch
(U) first, then:
R' U2 R' U R U' R U2 R
9 HTM · 9 STM · 11 QTM
2-gen
rotationless
oh
<U,R>
Do U first (AUF) on the case as drawn. · Cubemuch
y L' U L y L U2 L' y' L' U' L
9 HTM · 9 STM · 10 QTM
2-gen
rotation
<U,L>
Cubemuch
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: R U2 R' U2 R U2 R'. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".