OQ

Centres
O first
From memo: the letter pair is the case.
Your status
Recognition & spaced review

Algorithms (3)

U' 2R2 2D' 2R U2 2R' 2D 2R U2 2R U
My choice
18 HTM · 11 STM · 22 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 4 solvers' sheets
Rw' U 2R U2 2R' 2U 2R U2 2R' Uw' Rw
16 HTM · 11 STM · 18 QTM
2-gen
rotationless
oh
<U,R>
One hand: R and U only
BLDDB, on 1 solver's sheet
R2 y 2L' U2 2L 2U 2L' U2 2L 2U' y' R2
16 HTM · 10 STM · 20 QTM
3-gen
rotation
<U,R,L>
One hand: needs L, B, S or E
BLDDB, on 1 solver's sheet

How this case is verified

The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: Rw' Uw 2R U2 2R' 2U' 2R U2 2R' U' Rw. Every algorithm above was run by our logic engine from that state and reaches "solved".