ELS E4 (12)
OLS-FE
Spot the flipped edge in the slot, then read the last layer's orientation.
Your status
Algorithms (4)
x L U' B U2 B' U' L' U' B' U
My choice
10 HTM · 10 STM · 11 QTM
3-gen
rotation
<U,L,B>
One hand: needs L, B, S or E
Cubemuch
x Lw U' B U2 B' U' Lw' U' B' U
10 HTM · 10 STM · 11 QTM
3-gen
rotation
<U,L,B>
One hand: needs L, B, S or E
Cubemuch
x2 Lw B' U Lw U' B U B' Lw' U' Lw'
11 HTM · 11 STM · 11 QTM
3-gen
rotation
<U,L,B>
One hand: needs L, B, S or E
Cubemuch
y2 L U' B U B L' B' L U' B' L'
11 HTM · 11 STM · 11 QTM
3-gen
rotation
<U,L,B>
One hand: needs L, B, S or E
Cubemuch
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: U' B U Lw U B U2 B' U Lw' x'. Every algorithm above was run by our logic engine from that state and reaches "f2l-oll".