Results of contest #166 (Jul 19, 2019)

U (U F U) // EO (4/4)
(F2 D2 F2 R B) // 3 squares (5/9)
(R2 D2 R2 F L) // 5E (5/14)

Skeleton: U L' F' R2 D2 R2 B' R' * F2 D2 F2 U' F' U'
* = R2 ** F2 D2 F2 R2 F2 D2 F2 (8-7/15) to 3E
** = U2 R B2 U2 F2 L D2 F2 (8-4/19)

FSDGFSGDFH

(D2)' premove
(R B' L' R' D' F D2 R)' 2X2X3 + 2 PAIRS (didn't manage to use both of them in less than 30 moves final solution)
F R U R2 F' * R F U F - F2L-1= 4E4C
B2 L F' [D'] F L' B2
Final solution F R U R2 F' B2 L F' D' F L' B2 R F U F R' D2 F' D R L B R' D2
BUT!!!!

I wanted to add an interesting solution with LL-skip in 27 but it went better than it was before I started writing solution:
(D2)' premove
(R B' L' R' D' F D2 R2 U2)' - 2x2x2+pair+2x2x1
U' F R - F2l-1 no edge + orientation for RW and OW edges
Then something like building pairs and inserting edge leads to complete skip
F' U2 R' F R U F D R2 U R2 U D' F

Final solution U' F R F' U2 R' F R U F D R2 U R2 U D' F U2 R2 D2 F' D R L B R' D2.... I thought it was the end, but then I watched WR reconstruction by Sebastiano and found (D R2 U R2 U D') here (don't know why I didn't mention it during the solution). (F2 U' F2 U')' is shorter and also cancels one move=) So the final solution
U' F R F' U2 R' F R U F U F2 U F' U2 R2 D2 F' D R L B R' D2

really interesting solve..

F ^ U L B' // EO
R B2 // 222
D' R2 D' // 9 to 2e7c

^ - R U R' U' // 11 to 2e5c

New skeleton: F R U R' L B' R B2 D' R2 D'

Now here I notice F R U R' L B' is EO + ps222

so,

F R U R' L B // EO
(D2) // 222
R B2 R B2 // 11 to 3e5c

F R U # R' L B ^ R B2 R B2 D2

^ - D' R2 D R2 // 14 to 5c
# - U' L U R U' L' U $ R' // 19 to 3c
$ - B' L F' L' B L F L' (25)

Solution: F R L U R U' L' U B' L F' L' B L F R2 B D' R2 D R' B2 R B2 D2 (25)

R B' L' U F R' F D F' R //2x2x3 [10/10]
F R U2 R' F' //F2L-I [5/15]
R U2 R' F' U F //F2L Skip OLL [6/21]
F' U' F R2 D B' U B U' B D' R2 U' //PLL [13-7/27]

U // pair (1/1)
(F' D2) // 2x2x1 (2/3)
(L' F2) // pseudo 2x2x2 (2/5)
(R2 B' R B) // pseudo 2x2x3 (4/9)
F' // correct pseudoness (1/10)
R2 D2 // F2L-1 (2/12)
B R' B' // 3e3c (2/14)

Skeleton: U F' * R2 D2 B R' B2 R' B R2 F2 L D2 F

* = F B' D F' D' + F' B R F R' (7/21)
+ = D' B' D F2 D' B D F2 (6/27)

U D F' D' // EO (4/4)
(F' D2) // sq (2/6)
(L' F2) // 222 (2/8)
(D2 B') // ps 223 (2/10)
B' // 223 (1/11)
R2 F' R2 F R' D2 R2 F' R' F R' B R' B' // 3C (14/25-2=23)

Skel: U D F' D' B' R2 F' R2 F @ R' D2 R2 F' R' F R' B R' D2 F2 L D2 F (23)
@ - F' R B2 R' F R B2 R' (8-4)

(R B') // square (2/2)
R B // 123 (2/4)
(F' L' R' D R F2 R) // 223 (7/11)
(R B R' U' B2 R B R2 U R U2 B U) // L3C (13-1/23)
Skeleton : [R B U' B' U2 R'] U' R2 B' * R' B2 U R B' R2 F2 R' D' R L F B R'
Replace moves in [ ] with U2 F' U' F gives 21 to 3c
* = B' D' F' D B D' F D // solved (8-1/28)

(R B' F R) R // 2x2x2
B U' B' L2 (L) // 3x2x2
L B U2 B' L' U // F2L-1
B R B R' // L5C
Skeleton : R B U' (*) B' L' B U2 B' L' U B R B R2 L' F' B R' (18)
(*) (**) R B' L2 B R' B' L2 B (8-3)
(**) F2 R B R' F2 R B' R' (8-3)

(R B') //Square + pair (2/2)
U R' * D2 F' //321 + square (4/6)
L2 D R2 L2 U2 R' L //F2L-1 (7/13)
F L' F' U' F' U F' L F2 //3C (9/22)

* = B U2 B' D2 B U2 B' D2 (8-2/28)

I have spent some time looking for insertions on this skeleton:

(R B') //Square + pair (2/2)
U R' D2 F' //321 + square (4/6)
(F' L' F2 R') //4C5E (4/10)

without success. Only too late have I found this very nice skeleton:

(R B')
U R' D2 L F'
(F L') //Roux blocks (9/9)
F L D L' D' F' //CMLL (6-3/12)
(R L') //5e4x (2-1/13)

Skeleton on normal: U R' D2 L2 D L' D' * F' L2 R' + B' F R'

* = D2 F2 D2 F2 D2 F2 (6-2 to 3e4x)
+ = R' L' U L' U' # R L' B L B' (10-3)
# = E2 M E2 M' (8-6)

U R' D2 L2 D L' D F2 D2 F2 D2 F L' R2 U L' U D2 R' L F' B2 L B F2 R' (26)

The new Insertion Finder does something similar, but cancels one more move inserting centers (8-4) before edges (10-6)

U L B' //partial EO
F' * R B2 //2x2x2 + square
# D' R D F2 D2 R //f2l-1
R' F2 R //f2l-1C
U' F' R' F R U F' //AB4C

insertions: * F2 R B2 R' F2 R B2 R' (8-5)
# B U B' D' B U' B' D (8-2)

(L F R') - EO
F' U D2 L2 F D2 B D' - DR (11)
U2 R2 B R2 F L2 F' R2 B R2 F2 - Solve corners to 2e2e3e

F' U D2 L2 F D2 ^ B D' U2 R2 B R2 F L2 F' R2 * B R2 F2 R F' L' (22)

*: R2 b2 R2 b2 R2 B2 = R2 F2 L2 F2 R2 B2 (6-4)
^: D2 F' D' F U2 D2B' D B U2 (10-4)

L2 D2 //Premove
U R' B D2 L' F2 // block + some setups
(*) R2 B' D2 //2x2x3 block
U F' L F //EO
U F' L2 F B' U' B U' (3E)

* R D' R U2 R' D R U2 R2

(R2 L D B) - partial EO
(R2 B2 R U R') - 2x2x2
(F2 L ** F2 L2) - 2x2x3
(D2 L D L' F2) - ps F2L-1
(D F D L D2 L' D') - L3C
** = L' B2 L F L' B2 L F'

(L F R') //EO (3/3)
B L2 U' R2 F //222 (5/8)
B' L2 U' B2 L2 //223 (5/13)
(B' U2) //F2L-1 (2/15)
U B2 U' B //L5C (4/19)

Skeleton: B L2 U' R2 F B' L2 * U' B2 L2 U B2 ^ U' B U2 B R F' L'

* = L2 F' R2 F L2 F' R2 F (8-4/23)
^ = F D' F' U2 F D F' U2 (8-1/30)

(R B') // square (2)
U F' R B R2 D' R F L F2 L2 // 4C3E (13)

Didn't have time to do proper insertion (optimal was 25)

F' U' F' U // 4C (17)

Didn't have time to do proper insertion (optimal was 26)

So I did :
S // U @ F' R B R2 D' R F L F2 L2 F' U' F U B R'
@ U' R' U' R U' R' U2 R F' U F U' F' U2 F U' (13) lol

Found a ton of things, but couldn't finish. This was my backup I found at the beginning.

(R B') // 221 (2/2)
(L' R2 B R' B') // 2 Squares (5/7)
(U' B L' U' B' R' U' F2) // F2L-1 (8/15)
(F U2 F' U' L F' L' F) // 3C1T (8-1/22)

Skeleton 1: F' L F L' U F U2 F [@1] U R B U L B' U B R B' R2 L B R'

@1: R D2 R' U R D2 R' U' // 3C (8-4/26)

Skeleton 2: F' L F L' U F U2 F R D2 R' [@2] U R D2 B U L B' U B R B' R2 L B R'

@2: R' D R U2 R' D' R U2// Solved (8-2)

F //EOP 1/1
U L B' // EO 3/4
R B2 // 222 2/6
U' D R2 U R2 U' R2 U // 223 8/14
R' D R D2 R' D (1) R D' R2 D' R2 // AB3C 11/25

(1) F L' F' R' F L F' R (-1)

R: U L F 3/3 Partial Cross
I: F2 R F2 3/6 2x2
R: B' R B2 3/9 3x2x2
I: F' R' F 3/12 EO
R: R' D' R2 D' R D2 R2 7/19 F2L-1
D' R D' 3/22 L4C
SKEL: U L F [@1] B' R B2 R' D' R2 D' R D2 R2 D' R D' F' R F' R' F2
@1 - [F' U F, D'] (8-2)

SKEL 2: U L U F D' F' U' F D B' R B2 R' D' [@2] R2 D' R D2 R2 D' R D' F' R F' R' F2
@2 - [D B D', F] (8-2)

SOL: U L U F D' F' U' F D B' R B2 R' B D' F D B' D' F' R2 D' R D2 R2 D' R D' F' R F' R' F2

//Insertions were not optimal -- could have been a 27 according to Insertion Finder

B R2 F2 R F L' F B' U' B [10/10] - 2x2x3 without one corner
R F' R' [3/13] - x-cross

inv

L D L2 D' F L2 F' L' [8/21] - a lot of blocks
D' F' [2/23] - o_0
D' L' F L [4/27] - okay, it was pseudo-OLL
B D' R' D L' D2 R D' R' D2 R L B' [13/40] - pseudo-PLL