333fm
1、(1)Cross:L U' D F L' F'(6 steps)
(2)F2L①:x2 R U2 R'(3 steps)
F2L②:R' U R(3 steps)
F2L③:B' U' B2 L' B' L(6 steps)
F2L④:U L' U L U F U' F'(8 steps)
(3)OLL:Fw R U R' U' R U R' U' Fw'(10 steps)
(4)PLL:U' y2 z U' R D' R2 U R' U' R2 U D R'(12 steps)
Total steps:48 steps
2、(1)Cross:F L2 R B U F(6 steps)
(2)F2L①:x2 B U' B' U' L' U' L(7 steps)
F2L②:U R' U R2 U R'(6 steps)
F2L③:L U2 L2 B L B'(6 steps)
F2L④:R' U R U2 B U2 B' U' B U2 B'(11 steps)
(3)OLL:F' L' U' L U L' U' L U F(10 steps)
(4)PLL:U' y' R2 U R U R' U' R' U' R' U R'(12 steps)
Total steps:58 steps
3、(1)Cross:D B L R B R U L U'(9 steps)
(2)F2L①:x2 B U2 B2 R B R'(6 steps)
F2L②:U R U R2 F R F'(7 steps)
F2L③:L U2 L'(3 steps)
F2L④:F U F' U' F U2 F'(7 steps)
(3)OLL:y Rw U R' U R U' R' U R U2 Rw'(11 steps)
(4)PLL:y2 R' U2 R U2 R' F R U R' U' R' F' R2 U2(14 steps)
Total steps:57 steps
思路:CFOP