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