Jeff2L

Jeff2L refers to any F2L case where neither the corner nor the corresponding edge is in the U layer, and where at least one is in a wrong slot. When there are only such F2L pairs (as it happens all the time to Jeff Chiu, after whom Jeff2L is named), most cubers do for example RUR' to reduce to a normal F2L case.

Below is a complete list of adjacent-slot Jeff2L cases, as well as a few diagonal-slot cases. Since these cases have fairly easy recognition, the easier algorithms may be useful even when there is a normal F2L case.

Corner in wrong slot
Edge in wrong slot
Both corner and edge in wrong slot
Some diagonal-slot Jeff2L

Corner in wrong slot

L'RULU'R'
DRU'R'D'RUR'
commutator; inverse of second half of the Rowe E perm
L'RU'R'UL
RU'R'DRUR'D'
commutator; first half of the Rowe E perm
RUL'U'LR'
L'U'RULR'
y'R'UR2U2'R2'UR
y'RU'R2U2'R2U'R'
y'RU'FRF'R2U'R
from JUN
R'FRU'F'RU'R'
from JUN
LF'L'UFL'UL
LFL'FRL'ULR'
naive, but not bad
LF2L'FU'F
y'LF2L'FU'F
inverse of this case; from Stefan Pochmann
R'F2'RF'UF'
maybe as y'B'-R2'BR'UR'

Edge in wrong slot

FRwU2'Rw'F'
y'R2UR2U'R2'
F'Lw'U2'LwF
y'R2U'R2'UR2
RUL'U2LR'
L'U'RU2LR'
RU'L'U'LU'R'
L'URU2'LU'R'
L'URUR'UL
RU'L'U2R'UL
LUwL'Uw'L'
from Chris Hardwick; also as zULF'L'U'z'; variation LwUwL'Uw'Lw'
y'F'R'URF
same algorithm; as z'FwRU'R'B' by JUN
RFU'F'R'
FURwU'Rw'F'
affects FR/FL edges; better than F'Lw'U'LwUF
R'Uw'RUwR
from Chris Hardwick; also as z'U'R'FRUz; variation Rw'Uw'RUwRw
y'BRU'R'B'
same algorithm
L'F'UFL
FRwURw'U'F'
affects FR/FL edges
RU'R2Uw'R'UwR
from JUN; reduction using RU'R'
L'UL2UwLUw'L'
reduction using L'UL2
FU2'R'F'R2UR'
F'U2LFL2'U'L
y'R'U'R2U'R'F'U'F

Both corner and edge in wrong slot

y'RU'RU2'R2'U2'RUR
y'RURU2'R2'U2'RU'R
a little less intuitive
y'R'UR'U2'R2U2'R'U'R'
y'R'U'R'U2'R2U2'R'UR'
a little less intuitive
y'RU'R2'U'RU'R'U'R
reduction by y'RU'R'
y'RU'R'U'RU'R2'U'R
alternate ending
F'R2UF'R2FU'R2
probably not worth it
y'R'U-R2UR'URUR'
reduction by y'R'UR
y'R'URU'RU'R'U'RUR'
alternate ending; maybe better here?
FL2U'FL2F'UL2
not worth it; only as a reference
L'ULURU'R'U'RUR'
reduction by L'UL
y'RUR'U'RU'R'UR'U'R
reduction by y'RUR'; also consider y'RU'R'
y'RUR2U2'R'UR'U'R2
different finish; as a reference
RU'R'U'L'ULUL'U'L
reduction by RU'R'
y'R'U'RUR'URU'RUR'
reduction by y'R'U'R; also consider y'R'UR
LF'L'FRU'R'
first see if the slot with pair can be solved without Jeff2L
RUR'F'LFL'
same
y'RU'R2'yR'F'RF
reduction by y'RU'R'
FLF'L'y'R2'U'R
L'U'RwR'ULURw'RF'
F'RU'R'RwU'Rw'RUR'F
y'R'UR2FRF'R'
reduction by y'R'UR
y'R'B'R2'UR'
RULw'LU'R'U'LwL'F
F'RU'R'RwURw'RUR'F
inverse of the mirror case
L'U'Ly'R'U2RUR'U'R
reduction by L'U'L. consider others.
RUR'y'RU2'R'U'RUR'
reduction by RUR'. consider others.

Some Diagonal-Slot Jeff2L

R'UR'Uw'R2UwR2
from JUN
R2U'LUL'R2
from JUN
R2LU'L'UR2
R2'FRU'F'R
from Gungz