R' U' F R' U2 F2 B D F' D L U' R' U2 L2 U2 D2 F L2 B' D2 F2 R' U' F
U' R' B2 L' U' L2 B R' L' F B2 R' L U2 L2 B U2 L2 F' B2 U2 R2 U2
U' R' B2 L' U' // EO (5/5)
L2 B R' L' F R L // DR, 4b2 4e (7/12)
(U2 R2 U2 F' R2 D2 B') // HTR and "double slice" (7/19)
U' R' B2 L' U' // EO (5/5)
L2 B R' L' F (U2 R2 U2 F' R2 D2 B') // inside the trigger (12/17)
U2 D2 [R L] // AB3e (4/21)
[] = B2 R' L U2 R2 // solved (+3/24)
... R' L' F {U2 D2 B2 R' L U2} R2 B ...
{} = B2 R' L U2 F2 B2 // same length but slicable F2 B2 is out (6-6/24)
... R' L' F B2 R' L U2 F2 & B2 R2 B D2 R2 F & U2 R2 U2 ...
& = S2 // Simplify (-1/23)
Solution: U' R' B2 L' U' L2 B R' L' F B2 L R' U2 L2 B U2 L2 F' B2 U2 R2 U2 (23)
The attempt I had most fun working on. Scramble was trash but this niche DR was a pleasure to work on.
Optimal from my skeleton, there are some unfindable 22s from R' L' but everything goes out of place (just RLUD hackery mastery).
Mallard finds 22 from a 1+4 EO with instant jzp DR-46, findable if I had that EO.
23 is woaj, lol.
U' R' B2 L' U' // EO (5/5)
L2 B R' L' F R L // DR, 4b2 4e (7/12)
R' L' F' B (B2 R' L F B) // RLUD (9-6/15)
(D2 B2 L U2 F2 L') // HTR (6/21)
(U2) // finish (1/22)
U (B R F2 U) // EO (5/5)
(F2 B2 U2 L' D2 R) // DR, 4b2 2e (6/11)
(B2 R2 B' L2 F') // HTR (5/16)
(R2 U2 L2 R2 F2 D2) // finish (6/22)R' U' F D' R2 D' B' R B2 L' F2 L F2 U2 R F2 U' F2 R D U2 L' B R' U' F
U2 B2 L2 U B2 L2 U D' R2 U2 F2 R U L D' F2 B2 D2 L B' R L D2 F
(F' D2 L' R' B) // EO (5/5) (L') // DR-78 (1/6) (D2 F2 B2 D L' U' R') // DR, 4a1 4e (7/13) U2 B2 L2 [D // HTR (4/17) L2 F2 L2 D2] F2 // Leave slice (5/22) [] = U B2 L2 U D' R2 U2 // Slice (+2/24) Solution: U2 B2 L2 U B2 L2 U D' R2 U2 F2 R U L D' F2 B2 D2 L B' R L D2 F (24) Optimal from DR. This scramble had even less to offer,so I had to stick to this 13+1 that I found by chance at the start. All sub-24s from Mallard used 5-move NISS EOs. I had some too, and there was a 22 from one of them (but as usual, I missed the DR-78 setup). F U2 F (L F') // EO (5/5) (U' B2 R D' L') // DR, 4a2 2e (5/10) (D) L2 B2 L2 F2 D' // HTR (6/16) F2 U2 R2 B2 R2 F2 // finish (6/22)
R' U' F D R F2 U2 B2 R' D2 F2 L U' R D' U' L2 B U' B D' B R' U' F
B' U2 B2 L F2 L F' U2 F R2 B' R2 D2 B2 U2 B' L2 U2 D R2 D
(D' R2 D') // EO (3/3) B' U2 B2 L F2 L // DR, 2c4 2e (6/9) (U2 L2 B) [B' R2 F D2 F'] // HTR (8/17) R2 D2 B2 U2 // Leave slice (4/21) [] = F' U2 F R2 B' // Slice (+0/21) Solution: B' U2 B2 L F2 L F' U2 F R2 B' R2 D2 B2 U2 B' L2 U2 D R2 D (21) Overwhelming scramble: 4/2/2 with 92 sub 5 EOs. When I saw that, I stuck with the RZP in 4-move searching, and it was the right choice in terms of time management. Strangely enough, Mallard doesn't find any sub 21 with eo in 4 and rzp in 5. Nico found an interesting 20 by solving jzp on both sides, but I'm ok with my result. All my other DRs were 23 optimal (10+2, 10+2, 9+3, 10+3...)