DB
Corner comms
D first
From memo: the pair's letters are the case. The diagram shows the buffer and both targets lettered, the rest greyed.
Your status
Algorithms (4)
R F R' U R' D' R U' R' D R2 F' R'
My choice
13 HTM · 13 STM · 14 QTM
rotationless
<U,R,F,D>
One hand: R, U and M with F and D
BLDDB, on 15 solvers' sheets
R F' R' U R' D R U' R' D' R2 F R'
13 HTM · 13 STM · 14 QTM
rotationless
<U,R,F,D>
One hand: R, U and M with F and D
BLDDB, on 14 solvers' sheets
R' D R U' R' D' R U2 R' D R U' R' D' R
15 HTM · 15 STM · 16 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 11 solvers' sheets
R' D' R U' R' D R U2 R' D' R U' R' D R
15 HTM · 15 STM · 16 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 7 solvers' sheets
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: R F' R2 D R U R' D' R U' R F R'. Every algorithm above was run by our logic engine from that state and reaches "solved".