D' F' (B') //EO
(L' D2 R, B2 D L) //DR 9+3
R2 D L2 D' L2 F2 B2 U //HTR
D2 B2 R2 U2 L2//Finish 22-1

一个筑块的骨架：
L' F D2 F' U' D' L F2 R' //Xcross
B' U' B2 U2 B' F' U //L3E 16
找不到好插入点，if也只能+7到23步

F' L' (B D L) //EO
B' U2 F2 D' B' D' //DR 11+3
B' D2 B' L2 D2 U2 F' //HTR
B2 L2 D2 R2 D2 F2 //Finish

D' L' B' (B) //EO
U R, D F2 L2 R U R' //DR 12+3
(U R2 D L2 B2 U') //HTR
(B2 D2 B2 L2) //Finish

also have：
D' L' B (B) //EO
R2 D L //JZP
D' F2 D' B2 D //DR 12+2
F2 D2 L' R2 D2 L //HTR
F2 B2 D2 B2 D2 R2 D2 //Finish 25

B' D L' D L //222
U R' * U' F2 U //223
F D' F' D R' F R' //EO
D' F' D F' R2//L3C 22
* = F U' B U F' U' B' U 8-2

筑块功力大减，w3绝对不筑了

(U L2 F' D) //EO
(L2 F', L F2 R2 D2 B2 L B) //DR
U2 R (U2 F2 R') //HTR
(F2 L2 U2 L2 D2) //FININSH 23

also have a block building solution (24 moves)
U2 F' U # B R' Dw2 R2 D2 R2 U' Dw2 F D' B * F' R' B' //L2T 17-1
* = R' B' R F' R' B R F 8-6
# = D' F2 D B D' F2 D B' 8-2

(R U R' B L) //EO
D, U B' U //DR 9+2
F U2 B (B2 U2 B' R2 B) //HTR
(R2 F2 R2 B2) //Finish

F' R' (F U D R) //122–>EO (just by chance)
B (D2 R2 U F L2 F') //DR
(L2 D) B2 D' B2 D' //HTR
F2 U2 F2 R2 B2 D2 //Finish

D (L F2 U) //EO
(L) F' L2 R' B R //DR
D2 F2 R2 B L2 B' D2 B //HTR
R2 U2 L2 D2 F2 //Finish

(F' U D' R) //EO
(D2 F', D F2 U' R2 D2 B) //DR+1*2*2
L2 F2 D L2 D //HTR ???
B2 R2 L2 //Finish

(R F2 U') //EO
(F' L' B) L2 F2 R F' //DR 
L (U2 Lw' U2 Lw) //HTR
U2 B2 R2 U2 F2 L2 D2 B2 D2 //Finish

F2 L (B R) //EO
(D2 B D2 F' R2 D) //DR 6c3
(F' U2 B' L2 U2 B') //HTR
(R2 U2 R2 B2 R2 D2 L2 U2) //Finish

(L U D' F2 L)//EO
(D) R2 F L2 D2 F U//DR 
F2 L2 F (F2 R2 F R2 F)//HTR
(D2 L2 U2 F2 U2)//Finish

F' B2 U (R U) //EO
(F' R) R2 B U2 R2 F R //DR 13+3
(F D2 B' U2 F) //HTR
(B2 R2 L2 U2 F2) //Finish

L2 F' R // EO
(F2 D', B2 L2 D) //DR 8+3
(F' L2 Fw U2 Fw') //HTR
(L2 F2 U2 B2 U2 L2) //Finish

R (U' R') // EO
B2 U B F', D' F' U F' // DR
L2 D2 B2 D R2 D' // HTR (FR skip)
F2 R2 B2 L2 // finish

4 moves RZP but 11+2!

(F' L) //EO
(B L2 F) U' D F2 R2 B //DR
F2 D (L2 [D') //HTR
(R2 U2] R2 B2 D2) //E Slice 19-1

—>[U' B2 U' D'] 18+1=19

4 EO, 8 DR checked

(F') L F' //EO
(L', U' D2 B2 L' B2 L) //DR 10+1
L2 F2 U (U2 B2 D F2 D) //HTR
(R2 F2 L2) //Finish 21

2 EO checked