FN

Corner comms
F 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 U' D' R' D R' U R D' R' U' R2 U D R'
My choice
15 HTM · 15 STM · 16 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 26 solvers' sheets
f' U R' D R U2 R' D' R U f
11 HTM · 11 STM · 12 QTM
rotationless
<U,R,F,D>
One hand: R, U and M with F and D
BLDDB, on 9 solvers' sheets
R' D' R U' D R' D' R U2 R' D R U' D' R' D R
17 HTM · 17 STM · 18 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 7 solvers' sheets
F' U R' D R U2 R' D' R U F
11 HTM · 11 STM · 12 QTM
rotationless
<U,R,F,D>
One hand: R, U and M with F and D
BLDDB, on 6 solvers' sheets

How this case is verified

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