ELS F4
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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 (18)
R U R' U' R U' R' F' U' F
My choice
10 HTM · 10 STM · 10 QTM
3-gen
rotationless
<U,R,F>
Cubemuch
R U R' U' R U' R' y' R' U' R
10 HTM · 10 STM · 10 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
F' U' F2 U2 L F2 L' U2 F'
9 HTM · 9 STM · 13 QTM
3-gen
rotationless
<U,F,L>
Cubemuch
(U') first, then:
R U R' U' R U R' y' U' R' U R
11 HTM · 11 STM · 11 QTM
2-gen
rotation
oh
<U,R>
Do U' first (AUF) on the case as drawn. · Cubemuch
R U' R' y' U R' U2 R U' R' U R
11 HTM · 11 STM · 12 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
(U2) first, then:
R U R U2 x U R2 U' x' U2 R2
9 HTM · 9 STM · 13 QTM
2-gen
rotation
oh
<U,R>
Do U2 first (AUF) on the case as drawn. · Cubemuch
L R U' R' U L' F' U2 F U' F' U F
13 HTM · 13 STM · 14 QTM
rotationless
<U,R,F,L>
Cubemuch
(U) first, then:
R U2 R U2 x U R2 U' x' U2 R2
9 HTM · 9 STM · 14 QTM
2-gen
rotation
oh
<U,R>
Do U first (AUF) on the case as drawn. · Cubemuch
(U') first, then:
R2 U2 x R2 U R' U' x' R' U2 R2
9 HTM · 9 STM · 14 QTM
2-gen
rotation
oh
<U,R>
Do U' first (AUF) on the case as drawn. · Cubemuch
y' R' U' R2 U2 x U R2 U' x' U2 R'
9 HTM · 9 STM · 13 QTM
2-gen
rotation
oh
<U,R>
Cubemuch
y B F U' F' U B' L' U2 L U' L' U L
13 HTM · 13 STM · 14 QTM
rotation
<U,F,L,B>
Cubemuch
y' F B U' B' U F' R' U2 R U' R' U R
13 HTM · 13 STM · 14 QTM
rotation
<U,R,F,B>
Cubemuch
(U') first, then:
y L' U L y U' L U' L' y' L' U' L
10 HTM · 10 STM · 10 QTM
2-gen
rotation
<U,L>
Do U' first (AUF) on the case as drawn. · Cubemuch
(U') first, then:
y2 Rw B' Rw B' x Rw' B y B' Rw' B' Rw
10 HTM · 10 STM · 10 QTM
2-gen
rotation
<R,B>
Do U' first (AUF) on the case as drawn. · Cubemuch
y2 R L U' L' U R' B' U2 B U' B' U B
13 HTM · 13 STM · 14 QTM
rotation
<U,R,L,B>
Cubemuch
x U' B' U2 B2 y B U2 B' y' B2 U'
9 HTM · 9 STM · 13 QTM
2-gen
rotation
<U,B>
Cubemuch
(U) first, then:
x U2 B2 y' U' B' U' B y U2 B2 U2
9 HTM · 9 STM · 14 QTM
2-gen
rotation
<U,B>
Do U first (AUF) on the case as drawn. · Cubemuch
L y2 L U' L' y2 U L' y L' U2 L U' L' U L
13 HTM · 13 STM · 14 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' U R y R U R' U R U' R'. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".