OP

Corner comms
O first
From memo: the pair's letters are the case. The diagram shows the buffer and both targets lettered, the rest greyed.
Your status
Recognition & spaced review

Algorithms (4)

R D' R' D R U R' D' R U' D R'
My choice
12 HTM · 12 STM · 12 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 42 solvers' sheets
R' U D' R U R' D R U' R' U' R
12 HTM · 12 STM · 12 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 8 solvers' sheets
R D R2 D' R U R' D R U' R D' R'
13 HTM · 13 STM · 14 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 6 solvers' sheets
z' R' U' R' D' R U R' D R2 z
9 HTM · 9 STM · 10 QTM
3-gen
rotation
<U,R,D>
One hand: R, U and M with F or D
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: R' U R U R' D' R U' R' D U' R. Every algorithm above was run by our logic engine from that state and reaches "solved".