I4+
PLL
I - 2x1
Look for blocks (pairs and lines of matching stickers) on the sides; their kind and position name the group.
Your status
Algorithms (3)
(U2') U2 R' U' R' U2' F' R U R U' R' F R' U2 R U R
My choice
17 HTM · 17 STM · 20 QTM
3-gen
rotationless
<U,R,F>
Do U2' first (AUF) on the case as drawn. · LowCubes
R' U' R' U2' F' R U R U' R' F R' U2 R U R
16 HTM · 16 STM · 18 QTM
3-gen
rotationless
<U,R,F>
LowCubes
y' R U2' R' U' R U' R U2 R' U' R U' R2' U R U2' R'
17 HTM · 17 STM · 21 QTM
2-gen
rotation
<U,R>
LowCubes
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: R' U' R' U2' R F' R U R' U' R' F U2 R U R. Every algorithm above was run by our logic engine from that state and reaches "pll-solved", keeping first-layers and oll-solved.