ELS E4
ZBLS
edge-slot
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 (8)
R U' R' F' U2 F
My choice
6 HTM · 6 STM · 7 QTM
3-gen
rotationless
<U,R,F>
Cubemuch
R U' R' y' R' U2 R
6 HTM · 6 STM · 7 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
(U) first, then:
R U2 R' y' R' U' R
6 HTM · 6 STM · 7 QTM
2-gen
rotation
oh
<U,R>
Do U first (AUF) on the case as drawn. · Cubemuch
R U' R' U y' R' U R
7 HTM · 7 STM · 7 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
R U' R' y' U R' U R
7 HTM · 7 STM · 7 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
x U' B y U' B U B' U
7 HTM · 7 STM · 7 QTM
2-gen
rotation
<U,B>
Cubemuch
x U2 L U L' y2 U x L U' L'
8 HTM · 8 STM · 9 QTM
2-gen
rotation
<U,L>
Cubemuch
(U') first, then:
y' R' U' x' R y2 U R' U R U2
8 HTM · 8 STM · 9 QTM
2-gen
rotation
oh
<U,R>
Do U' first (AUF) on the case as drawn. · 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 y R U R'. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".