QX

Corner comms
Q 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 (3)

R U' R' U R D' R' U' 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 51 solvers' sheets
U L2 U' R' U L2 U' R
8 HTM · 8 STM · 10 QTM
3-gen
rotationless
<U,R,L>
One hand: needs L, B, S or E
BLDDB, on 3 solvers' sheets
z R U2 R' D' R U2 R' D z'
8 HTM · 8 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 L2 U' R U L2 U'. Every algorithm above was run by our logic engine from that state and reaches "solved".