OB

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 (2)

R D R' U' R D' R' U
My choice
8 HTM · 8 STM · 8 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 56 solvers' sheets
R' U R' D' R U' R' D R2
9 HTM · 9 STM · 10 QTM
3-gen
rotationless
<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: R2 D' R U R' D R U' R. Every algorithm above was run by our logic engine from that state and reaches "solved".