[chriscuber123]

2. with and without limit (22):
(D' R U B) // EO
L2 (U D B2 F2 D) // L5C (10 moves!)
skeleton: L2 D' F2 B2 * D' U' B' U' R' D
*: R2 ^ U L2 U' R2 U L2 U'
^: R' D R U R' D' R U'
final solution: L2 D' F2 B2 R D R U R' D' R L2 U' R2 U L2 U2 D' B' U' R' D (22)

lucky skeleton, unlucky insertions
at least they were optimal