U' R' D' R
D^' (R2 L2 F U') //9 4b2
(B L2 B')
(U2 R2 # F2 L2 F2) //E
^ = w, # = Dw' D

(F' D R B)
(D) L2 U2 R D //9 4b2
R2 # U2 B2 R B2 L^
D2 F2 R2 U2 F2 L2 U2
^ = w, # = Rw R'

(R) L D2 F' R
F' D F' L2 F2 B' U //12 4b2
(U2 F' U2 B')
(U2 F2 R2 L2 D2)
saved by luck

U F D' F' D
B2 R2 D2 F R B' //11 2c3
(D2 B2 U2 R' B2 D2 R^' B2 R' #F2 U2)
^ = w, # = Rw R'

B U' R2 F
(F2 L R2 F2 D' R2 U') //11 2c3
U2 L # D2 L' F2 L'
F2 U2 F2 U2 L^2
^ = w, # = Lw2 L2

F D2 R' U B
(U L2 D F2 U L) //11 0c0
(D) D F2 L2 D' R2 L2 U^'
F2 D2 # L2 F2
^ = w, # = Dw' D

(D2 U' R U D)
(F R2 F B' R) //10 2c3
B^ (D2 L2 D2 F' U2 F^)
(L2 F^2 L2 U2 R2)
^ = w

F' B L'
F', U2 F2 B U B' //9 4b2
F2 D' # F2 R2 L2 U'
L2 D^2 R2 F2
^ = w, # = Dw2 D2

F2 L U *
L, F' D2 F' L B2 R' //10 4b2
F^' D2 R2 # L2 F U2
^ = w, # = F2 F'
* = U2 L R' F2 L' R

couldn't find anything good on these:
L F2 U, L2 D2 F' B2 R //8 2c3
L F2 U (R), L F L' //7 4a3
missed another 8+3 from L F2 U', 20 opt:
L F2 U', B F2 L2 D2 R

(U F' R)
U D2 F' U F //8 4a1
(D' R2 F2 L2 U' R2 * U')
(F2 R2 F2 D2)
* = R2 U2 L2 D2 L2 U2
also found:
(U F' R)
(D' F' D' F') //7 4a3
L2 D' L2 D' (L2 D2 L2 B2 D)
(B2 D2 B2 R2) //20 ls, no+0
Both 7+3 and 8+1 have 20

(R' L F U' L)
(F') L2 D F D B' //11 4b3
(D) U2 L2 B2 D R2 D
R2 F2 B2 U2 L2 F2

(R2 D' R' L')
(D F' U') //7 4a3
D2 B R2 B L2 F2 D2 B'
R2 B2 L2 D' U L2 D U'

checked the +1 extensions of D2 B R2 B… but didn't check D2 B R2 B'…
also had 10+2 to 20 but did 5 move ls first, didn't notice the blockyfish, thinking it won't beat 21 and didn't even write it down
why things like these always happen

(D' U2 L F R)
(U' B, U2 L2 D B) //11 4b2 4e
(F2 D') D2 B2 D2 F2 R2 U'
R2 L2 D2 L2 F2
well 7-move htr finish is too difficult

(D' B) L R' B'
(F2 R2 U B2 U2 L) //11 2c3
R2 F2 U R2 D B2 D^
F2 B2 # L2 B2
^ = w, # = Dw' D

R F2 L2 F L
B' D' F D' B' U //11 4a1
(L2 F^' R2 F' L2 U2 L2 F #)
(U2 L2 B^2)
^ = w, # = Fw' F

L' F B' U'
F L, B' F' L2 B' * L' //11 2c3
(R2 B^) R2 D2 B^' L2 B
U2 F^2 D2
^ = w
* = B2 R2 B2 R2 B2 R2

(U' L B' D2 F')
(L, U L D L) //10 2c3
extend:
(L, U L2 F2 L' D L) //12 4a1
R2 B2 R2 U B2 U2 R2 B2 L2 F2

(L', F2 L2 U' L D L) //12 4a1
(F2 D2 R2 D' R2 L2 U2) //19

F (F2 R B)
(U' R) D' L2 U' B2 U2 R' //12 4b2
L2 U B2 D #
R2 B2 D2 #' F2
# = Dw' D
didn't even want to write down 12+2 but found this accidentally when solving

(U F L2 B')
U' R2 L2 U D2 L' //10 4b3
D (D B2 D2 B2 L2 U)
(B2 R2 B2 U2 L2)

(L2 D2 R)
(D U' F' U2 F2 U') //9 2c3
B L2 U2 B' L2 D2 F'
(B2 R2 U2 R2)

too many variations (8*4), stopped after finding this 20, then it turns out there's a 19
(R2 U2 R)            // eolr               (3/3)
(D' U)               // rzpfb-eolr         (2/5)
(B' D2 F2 U)         // drfb-eolr [2c3 2e] (4/9)
B L2 D2 F' R2 D2 B'  // htr-drfb           (7/16)
F2 U2                // frud               (2/18)
L2                   // fin                (1/19)

(B2 L B' D' F)
(D) R L F2 R' U' //11 2c3
F2 L^ B2 D2 R U2 R
D2 L2 # B2 D2 F2
^ = w, # = Lw' L

L U' [B] R L'
(D, B D2 B U2 B U) //12 4b2
[] -> B' U2
U2 B R2 F'
D2 B2 L2 U D B2 U D

D' L2 R D' L'
B, U R2 L2 B' //10 4b2
(F2 U R2 D^') D R2 L2 U^'
B2 R2 B2 U^2 L2
^ = w

L D U2 B' R'
(D) L2 D //8 4b2 4e
(F^') F^' R2 L2 F' R2 F^
R2 F2 # R2 U2 R2
^ = w, # = Fw' F

(F) L R' F'
(L U2 L D2 R' D) //10 4b3
U2 [L (F2 R F2 R')
(D2 F2 D2 B2 D2 [L2 D2)
[] -> (R2 U2 R2 L)

(L B' R2 B)
(U2 B2 R2 D R) //9 4a3
(U # F2 D^2 L2 D^ F2 D^')
(B2 L2 B2)
^ = w, # = Uw2 U2

B U L F R'
F U D2 B U' F //11 4b2
D' R2 D'
F2 B2 L2 B2 U2 R2 U2 R2 U2

L D2 B L
R2 B, D B2 U2 F' //10 2c4
(U) U' L2 B2 U F2 L2 U
F2 R2 F2 L2

(R D F')
D' R', D' R2 F2 U D' L //11 4b2
(L2 U' R2 F2 B2 D)
(R2 B2 R2)
slice +3

edit: oh i forgot the dr variation again

(F) U' D R F
(U2 R2 D B2 D' R) //11 4b2
L2 B2 D^' F2 U'
F B L2 F B #
^ = w, # = Dw D'