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The 3x3 Example Solve Game with only half turns

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Thread starter #1
I like doing 3x3 with only half turns sometimes, idk if anyone else does. If you do, feel free to post here!
Scramble:
D2 B2 R2 F2 U2 L2 B2 D2 R2 B2 L2 D2 U2 L2 F2 D2 U2 L2 U2 L2 F2 D2 U2 B2 L2
Solve:
R2
E2 F2 E2 F2
R2 F2 R2 F2 R2 F2
x F2 U2 F2 U2 F2 L2 F2 U2 L2 U2 F2 L2
F2 U2 F2 U2 F2 U2
L2 U2 L2 U2 L2 U2
37 HTM
Next:
R2 F2 R2 B2 U2 R2 B2 L2 D2 U2 F2 U2 D2 B2 D2 L2 R2 D2 L2 B2 U2 F2 D2 R2 U2
 
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#3
(Every 2 is skipped)
Middle layer: L B F
Corner permutation: D B D B R D R D
Edge permutation: R U R S U S U R U R F D L B L B L B D F
35 moves
Next: D B D L U D F L B R U R L B R D R U L D
 
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hssandwich cubes
#4
R2 L2 B2 R2 @ L2 // corners + edges
D2 B2 D2 B2 D2 //4E
@D2 B2 D2 B2 D2 B2
Final: R2 L2 B2 R2 D2 B2 D2 B2 D2 B2 L2 D2 B2 D2 B2 D2 (16)

Bonus normal solution:
U2 R2 U' D F2 @ U' D'
@ F2 M' F2 M
Final: U2 R2 E' S L2 S' U' D' (8 STM)
U2 R2 U' D R' L D2 R L' U' D' (11 HTM)
 
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#5
No scramble. I use
R2 D2 B2 L2 B2 U2 R2 L2 U2 B2 F2 D2 B2 L2 R2 U2 R2 B2 U2 D2 R2 L2 F2 U2 B2 generated from cstimer.
middle layer: R2
corners: F2 D2 F2 U2
edges: R2 F2 D2 L2 B2 L2 B2 L2 B2 D2 F2 R2 S2 R2 S2 D2 F2 L2 F2 L2 F2 L2 D2 R2
Next:
R2 B2 R2 U2 L2 B2 R2 F2 L2 R2 F2 L2 U2 R2 F2 D2 U2 B2 U2 D2 R2 U2 F2 D2 R2
 
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#6
Next:
R2 B2 R2 U2 L2 B2 R2 F2 L2 R2 F2 L2 U2 R2 F2 D2 U2 B2 U2 D2 R2 U2 F2 D2 R2
R2 U2 R2 U2 // Columns
y x' U2 R2 U2 // Side Layers
x' U2 M2 U2 // Middle
10 STM

Next Scramble: R2 L2 B2 L2 F2 U2 B2 F2 R2 U2 F2 U2 F2 U2 F2 R2 F2 L2 B2 F2 R2
 
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#7
B2 D2 M2 // 2x2x3
F2 R2 F2 // corners
R2 F2 R2 F2 U2 F2 R2 U2 R2 F2 U2 F2 // h perm
18 STM

Next: B2 F2 R2 U2 F2 D2 R2 D2 U2 B2 R2 B2 F2 L2 B2 U2 B2 U2 L2 R2 F2 U2 D2 B2 L2
 
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#8
Next: B2 F2 R2 U2 F2 D2 R2 D2 U2 B2 R2 B2 F2 L2 B2 U2 B2 U2 L2 R2 F2 U2 D2 B2 L2
@superphluous You could do this H-perm instead
U2 R2 [Setup] || y' R2 U2 R2 U2 R2 y [Swap] || U2 R2 U2 [Undo/Finish] || 10 moves instead of 12

y'
M2 E' F2 M2 E
5 STM
- Saw this solution really quickly

Only Half Turns:
U2 R2 U2 F2 U2 R2 u2 // Columns
x' U2 R2 // Side Layers
U2 u2 // Middle
11 HTM

Next Scramble: F2 L2 D2 B2 U2 F2 D2 B2 D2 B2 U2 R2 D2 L2 B2 R2 L2 U2 R2 U2
 
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#9
Since the "method" I used in my example solves isn't reliable, here's some example solves but with the BTSM method by Cary Huang.
This is basically the best way to solve 3x3 half turns only. BTSM prevents terrible cases like pure H-perm and has a extremely high skip rate, 1/6 chance triplets are skipped and 1/12 chance M-slice is skipped. This has been used to get every YTUWR there is.
Another thing that makes it great is that despite the simplicity, the movecount is extremely low, below even 20.

If you don't know about this method, you can learn from these example solves and Cary's video.
Here's basically all the algs you need for BTSM-
U2 M2 U2 M2
U2 M2 U2 x U2 M2 U2
R2 U2 R2 F2 R2 U2 R2 F2
R2 F2 R2 U2 R2 F2 R2 U2
U2 R2 U2 R2 U2

Scramble: L2 F2 D2 L2 B2 D2 R2 L2 U2 F2 L2 B2 D2 R2 F2 D2 L2 B2 R2 F2

z' y
u2 R2 u2 // Block
F2 R2 U2 F2 R2 F2 // Triplets
U2 // Sides
M2 // M-slice
11 STM

Scramble: R2 F2 L2 U2 L2 U2 B2 F2 D2 F2 R2 F2 R2 B2 R2 B2 U2 L2 R2 D2 U2

x z'
R2 U2 R2 U2 R2 // Block
x2 R2 U2 R2 F2 R2 U2 R2 // Triplets
y' U2 R2 U2 // Sides
// M-slice
15 HTM

Scramble: D2 B2 D2 U2 R2 F2 R2 U2 R2 U2 F2 D2 B2 R2 U2 R2 B2 U2 F2 D2 U2

x2
U2 R2 U2 F2 // Block
U2 x U2 R2 U2 R2 U2 x' // Triplets
U2 // Sides
r2 F2 R2 U2 R2 F2 R2 U2 // M-slice
19 HTM

Scramble: F2 R2 D2 F2 L2 R2 F2 R2 D2 R2 D2 B2 D2 U2 L2 R2 D2 B2

y2
r2 U2 F2 R2 U2 R2 // Block + Triplets
y' r2 U2 r2 U2 // Sides + M-slice
10 HTM

Scramble: L2 D2 U2 F2 L2 D2 R2 B2 R2 B2 R2 B2 F2 D2 L2 R2 B2 R2 D2 F2 D2

y z
R2 U2 F2 // Block
U2 x U2 R2 U2 R2 U2 x' // Triplets
U2 R2 // Sides
x U2 M2 U2 // M-slice
14 HTM


Average movecount: ~15 moves (computer optimal is 9.8 btw)
Average time: faster than sonic

Next Scramble: F2 L2 D2 B2 U2 F2 D2 B2 D2 B2 U2 R2 D2 L2 B2 R2 L2 U2 R2 U2
 
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#10
I hadn't seen that method before, just watched the video.

L2 D2 L2 D2 L2 // block
F2 // sides w/ cancellation
U2 R2 F2 R2 U2 R2 // M
12 HTM
Next: D2 R2 B2 U2 L2 R2 U2 R2 B2 U2 R2 B2 D2 U2 B2 F2 D2 R2 D2 R2 F2 D2 L2 B2 L2
 
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#11
Next: D2 R2 B2 U2 L2 R2 U2 R2 B2 U2 R2 B2 D2 U2 B2 F2 D2 R2 D2 R2 F2 D2 L2 B2 L2
y’ x’
R2 F2 // Block
R2 y R2 F2 R2 U2 R2 F2 R2 y’ // Triplets
R2 U2 R2 U2 // Sides
x R2 U2 R2 F2 R2 U2 R2 F2 // M-slice

Next Scramble: B2 U2 L2 D2 F2 D2 F2 U2 B2 F2 L2 D2 F2 D2 B2 D2 F2 R2 D2 F2 D2
 
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#15
next: B2 D2 B2 D2 L2 R2 B2 L2 R2 U2 F2 B2 U2 B2 L2 R2 F2 U2 B2 D2 U2 R2 B2 L2 R2
B2 U2 D2 L2 B2 //corners and blockbuilding as much as possible
B2 D2 B2 D2 B2 D2 //finish

cancel moves: B2 U2 D2 L2 D2 B2 D2 B2 D2
view

Next: B2 F2 U2 B2 F2 L2 U2 D2 B2 D2 U2 R2 L2 D2 L2 F2 D2 L2 F2 B2 D2 F2 L2 D2 R2
 
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#17
Nice blockbuilding!

z2

B2 D2 // 2x2x2
R2 U2 F2 // Columns
R2 F2 R2 U2 // Finish
9 HTM

Next: R2 U2 R2 U2 L2 F2 D2 L2 D2 R2 U2 B2 D2 U2 L2 F2 U2 B2 D2
B2 R2 // 2x2x2
L2 U2 B2 U2 L2 U2 L2 // Columbs
R2 D2 F2 D2 R2 B2 R2 D2 F2 L2 D2 R2 // H perm
x' L2 U2 L2 U2 L2 U2 // Finish

Next: L2 R2 D2 L2 B2 F2 D2 U2 L2 U2 R2 F2 L2 D2 B2 R2 D2 L2 B2 U2 B2
 
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#20
Next: L2 R2 D2 R2 U2 D2 R2 U2 R2 B2 D2 F2 U2 R2 D2 U2 F2 B2 R2 F2 B2 L2 U2 B2 D2
(z x’)
D2 // Block
R2 F2 R2 U2 R2 F2 R2 // Triplets
y’ R2 U2 R2 // Sides
x’ U2 M2 U2 M2 // M-slice
BTSM Method, 15 STM
- Super basic solution, spent like 2 seconds on it lolz

Next: L2 U2 D2 R2 D2 F2 D2 R2 U2 L2 D2 L2 F2 R2 D2 F2 U2 L2 D2 L2
 
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