UX
Corner comms
U 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 U' D2 R' U R D R' U' R U D R'
My choice
13 HTM · 13 STM · 14 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 32 solvers' sheets
F2 r D r' F2 r D' r'
8 HTM · 8 STM · 10 QTM
3-gen
rotationless
<R,F,D>
One hand: R, U and M with F and D
BLDDB, on 7 solvers' sheets
R B R' U R' D R U R' D' R U2 R B' R'
15 HTM · 15 STM · 16 QTM
rotationless
<U,R,D,B>
One hand: needs L, B, S or E
BLDDB, on 4 solvers' sheets
D R2 U R2 U' R2 D R2 U R2 U' R2 D2
13 HTM · 13 STM · 20 QTM
3-gen
rotationless
<U,R,D>
One hand: R, U and M with F or D
BLDDB, on 4 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 D r' F2 r D' r' F2. Every algorithm above was run by our logic engine from that state and reaches "solved".