COLL 25
y2 (R U R' U R U2' R2') (U' R U' R'
U2 R)
COLL 26
F (R U' R' U) (R U R' U) (R U' R' F')
COLL 27
y2 R2 D (R' U2 R) D' (R' U2 R')
COLL 28
R2' D' (R U2 R') D (R U2 R)
COLL 29
R' F (R U' R' U') (R U R' F') (R U R'
U') (R' F R F' R)
COLL 30
(R' U2 R) F (U' R' U' R) U F'