ELS R4
ZBLS
corner-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 (3)
B' R2 B x B R' B' R B R
My choice
9 HTM · 9 STM · 10 QTM
2-gen
rotation
<R,B>
Cubemuch
R2 U R U' R' U F R2 F' R'
10 HTM · 10 STM · 12 QTM
3-gen
rotationless
<U,R,F>
Cubemuch
z' B' Lw' B' Lw z B Lw' B Lw
8 HTM · 8 STM · 8 QTM
2-gen
rotation
<L,B>
Cubemuch
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: R' B' R' B R B' x' B' R2 B. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".