333fm
1、(1)Cross:U R F' R2 U B' U2 (7 steps)
(2)F2L①:x2 R U R2 F R F' (6 steps)
F2L②:y2 U R U' R' (4 steps)
F2L③:U' F U F' B U' B' (7 steps)
F2L④:y' U2 R U R' U' R U R' U' R U R' (12 steps)
(3)OLL:y R U2 R2 F R F' U2 R' F R F' (11 steps)
(4)PLL:y R2 Uw R' U R' U' R Uw' R2 y' R' U R (12 steps)
Total steps:59 steps
2、(1)Cross:B U' R' U' F' R F U' L' F L U' (12 steps)
(2)F2L①:x2 R U R' (3 steps)
F2L②:U L' U' L2 U2 L' (6 steps)
F2L③:F U2 F' B U' B' (6 steps)
F2L④:U2 F U2 F' L' U2 L2 F' L' F (10 steps)
(3)OLL:Rw U Rw' R U R' U' Rw U' Rw' (10 steps)
(4)PLL:U' R' U R U' R2 x Dw' R' U R y' R U R' U' R2 (15 steps)
Total steps:62 steps
3、(1)Cross:U' R' B D2 R2 F' U2(7 steps)
(2)F2L①:z2 F U' F' U R U' R' (7 steps)
F2L②:L' U L2 U L' (5 steps)
F2L③:y U2 R U' R' U2 R U' R' (8 steps)
F2L④:B' U B U' L U L' (7 steps)
(3)OLL:y' Rw' U2 R U R' U Rw (7 steps)
(4)PLL:U R2 Uw' R U' R U R' Uw R2 y R U' R' (13 steps)
Total steps:54 steps
思路:CFOP