ELS R2
ZBLS
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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 (2)
R U' R' U2 x R' U R U'
My choice
8 HTM · 8 STM · 9 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
R U' R' U2 R' F R F'
8 HTM · 8 STM · 9 QTM
3-gen
rotationless
<U,R,F>
Cubemuch
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: U R' U' R x' U2 R U R'. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".