333fm
1、(1)Cross:L' R F' B' L' R' U F' (8 steps)
(2)F2L①:z2 L' U2 L (3 steps)
F2L②:B U B2 R B R' (6 steps)
F2L③:U L U L' (4 steps)
F2L④:U2 R U R' U F' U' F (8 steps)
(3)OLL:y R U2 R2 U' R2 U' R2 U2 R (9 steps)
(4)PLL:y' R U2 R' U2 R B' R' U' R U R B R2 U' (14 steps)
Total steps:52 steps
2、(1)Cross:F' D2 B2 D R2 L U' F (8 steps)
(2)F2L①:x2 U2 L' U' L U2 R U R' (8 steps)
F2L②:y U2 R U R' U' R U R' U' R U R' (12 steps)
F2L③:R' U2 R (3 steps)
F2L④:y2 U2 R U R' U F' U2 F (8 steps)
(3)OLL:R U B' U' R' U R B R' (9 steps)
(4)PLL:y R2 U R U R' U' R' U' R' U R' U (12 steps)
Total steps:58 steps
3、(1)Cross:R2 B U2 L U2 (5 steps)
(2)F2L①:z2 F' U2 F R' U2 R (6 steps)
F2L②:U' L U L' U B' U' B (8 steps)
F2L③: U R U2 R' U' R U2 R' (8 steps)
F2L④:F U F' (3 steps)
(3)OLL:y F R U R' U' F' U F R U R' U' F' (13 steps)
(4)PLL:y x' R2 D2 R' U' R D2 R' U R' F' (10 steps)
Total steps:53 steps
思路:CFOP