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L2E

This step solves the FL and FR edges while preserving the rest of the first two layers and last-layer corners.

Both edges in middle layer | One and One | Both edges on top

Both Edges in Middle Layer

FLg FRb

r (R U R' U') r' U2 (R U R U' R2)

R2 U2 R2 U' F R D R2 D' F' R'

known from CO page, xx

FLb FRg

y' r (R U R' U') r' U2 (R U R U' R2)

y' FLg FRb; k4 insertion

FLb FRb

F M' U M U' x U2 M U2 M' U' x'

F R2 U2 R' L F2 L' U R' L F' L' F'

FRg FLg

y' R2 U2 R2 U2 R2 y

FRg FLb

x U M U' R' U' M' U R x'

FRb FLg

x U' M U L U M' U' L' x'

mirror of FRg FLb

x R2 U' M U R2 U M' U' x'

FRb FLb

(F U' F') [R F; (R' U' R U)]

One and One

UFb FRg

(U L' U M') (U' L U M)

UFb FRb

F2 R2 F R U' F' R2 F R U F' R' F

UFb FLg

x M2 U M' U2 M U M2 x'

UFb FLb

x U (R U R' U') M' (U R U' r') U' x'

y' R2 U' F' U' R' U2 R F R

FLg UFg

U2 y L' U M' U' L U M

R2 U' R U R U R U' R' U' R

x M' U' M U2 M' U' M x'

FLg UFb

U R U' M' U R' U' M

y' R U R U R U' R' U' R' U'

FLb UFg

x U (r U R' U') M (U R U' R') U' x'

FLb UFb

U F U M' U' M2 F2 M' F

F2 U R U F U2 F' R' F'

FRg UFg

x M' U M U2 M' U M x'

FRg UFb

x M2 U' M' U2 M U' M2 x'

FRb UFg

U F M' U' M U F' U'

FRb UFb

x U' (L' U' L U) M' (U' L' U l) U x'

UFg FLg

x (M' U' M) U2 (M' U' M) x'

UFg FLb

x U' (l' U' L U) M (U' L' U L) U x'

UFg FRg

L U L U L2 U' L' U' L' U2

UFg FRb

(R U R') F' U2 R' F' R y' R' (U2 R2)2

F R' F2 R2 U' R' L F L2 U2 L F'

U R2 U2 R2 U' R F' R' F2 R U F U' R'

Both Edges on Top

UFg ULg

[U' L' F'; U2] (R U2 R')

UFg ULb

U2 (R U2 R') U' [L' F'; U2]

UFg UBg

F U2 (R U' R') L F L' U2 F'

UFg UBb

(U2) F R U2 M' U' M U' R' F'

F' L F2 L2 U' L2 F2 L2 U' L F

F R U2 R' U' L U F2 U' L' F' U

UFg URg

U2 F U2 M' U M U F'

U' R F U F' R' U' L' U' L U2

UFg URb

[F L U L; F2]

UFb ULg

R' D' F' D R U (R U R')

UFb ULb

y' R' U' R' U' R2 U' R U R U R2

U' L' U L U R F U' F' R'

UFb UBg

F' U2 R' F' R F U2 R U R'

F' U2 R' F' R L' U L U2 F

UFb UBb

L2 F' U2 L2 U2 L2 U2 L2 F L2

U R' F R2 U' R2 F2 R2 U' R2 F R

UFb UR good

F U (R U R') (L F' L') U' F'

UFb UR bad

U2 F [R2 F2 R2; U'] U' F'