R' U' F L2 D' L2 U' R U F' D R L' F U2 D2 F L2 F' R2 F2 D R' U' F
L2 F' L D L2 F2 B R D2 R L2 B' R2 U2 B R2 B' R2 U2 L2 B
L2 F' L D // eo(4/4) L2 F2 B R D2 R // dr(6/10) (B) L2 B' R2 U2 B R2 B' // htr(8/18) R2 U2 L2 B2 // fin(4-1/21) I don't know why I didn't try L B2 L to solve DR :(
R' U' F L2 D' L' B' R B2 R' B2 R' U2 F2 L D F' R' B' F' D U R' U' F
D' R2 U' L D R2 L2 U2 F U2 F R2 L2 D' F2 U2 D F2 U2
D' R2 U' L // eo(4/4) D (U2 F2 D B2 D) // dr(6/10) B2 L2 U2 [B L2 B'] // htr(6/16) U2 D2 B2 R2 L2 // 3e(5/21) [] = F U2 F' I had some minutes left, so I tried some random stuff at HTR: D' R2 U' L // eo(4/4) D (U2 F2 [D B2 D]) // dr(6/10) B2 L2 U2 F U2 F // htr(6/16) R2 L2 // 3e(2/18) [] = U2 D' F2 D => 19
R' U' F U' R2 D2 R2 F2 U2 B U2 F' D' L' R' U' B' L' F' L2 B D R' U' F
F' U D R U2 B2 R2 L' B2 R2 U' B2 R2 U2 D' L2 F2 U2 B2 D2 L' B D R2
F (R2 D' B') // eo(4/4) (L) F2 U D R U2 B2 L' // dr(7/11) 4b2 4e with some variations R2 B2 R2 U' B2 R2 D // htr(7/18) R2 B2 D2 B2 D2 // 3e(5/23) +1 There was a 22 on some variations of that DR. I also had this DR: F (R2 D' B'), (L' U' R2 U2 F2 D2 L) // dr(11) 2c4 with some variations, one of them had a 21 optimal