C1/C2

C1

BL
LU'L'ULU2'L'ULU'L'
reduction by LU'L'
LU2'L'ULU'L'ULUL'
reduction by LU2'L'
BR
R'URU'R'U2'RU'R'UR
reduction by R'UR
R'U2'RU'R'URU'R'U'R
reduction by R'U2'R
FL
L'ULU'L'U2LU'L'UL
reduction by L'UL
L'U2LU'L'ULU'L'U'L
reduction by L'U2L
FL - FR free
DRU'R'URU'R'UD'
similar for other target slots
FR
RU'R'URU2'R'URU'R'
reduction by RU'R'
RU2'R'URU'R'URUR'
reduction by RU2'R'
RU2'RUR'URU2'R2
from TellerWest's finger trick video
FR - FL free
Uw'RUR'U'RUR'D
preserves FL corner; similar for other empty slots

C2

BL
LUL'U'LU2L'U'LUL'
reduction by LUL'
LU'L'U'LUL'U2LU'L'
reduction by LU'L'
BR
R'U'RUR'U2'RUR'U'R
reduction by R'U'R
R2'U2'RUR'URU2'R
R'URUR'U'RUR'U2'R
reduction by R'UR
FL
L'U'LUL'U2LUL'U'L
reduction by L'U'L
L'ULUL'U'LUL'U2L
reduction by L'UL
L2'U2LUL'ULU2L
FL - FR free
DRU'R'URU'R'D'
similar for other target slots
FR
RUR'U'RU2'R'U'RUR'
reduction by RUR'
R2U2'R'U'RU'R'U2R'
RU'R'U'RUR'U2'RU'R'
reduction by RU'R'
FR - FL free
Uw'RU'R'URU'R'Uw
preserves FL corner; similar for other empty slots
FR - BR free
UwRU'R'URU'R'Uw'
DR'U'RUR'U'RD'