UB and UR
Flips
Without UF
Seen during memo: an edge in place with its colours the wrong way round.
Your status
Algorithms (4)
U R' E2 R2 E' R' U' R E R2 E2 R
My choice
16 HTM · 12 STM · 22 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 19 solvers' sheets
R' E R2 E' R2 E R U R' E' R2 E R2 E' R U'
22 HTM · 16 STM · 26 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 2 solvers' sheets
R' E2 R2 E' R' U R E R2 E2 R U'
16 HTM · 12 STM · 22 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 2 solvers' sheets
U' R' S R2 S2 R' U' R S2 R2 S' R U2
17 HTM · 13 STM · 24 QTM
3-gen
rotationless
<U,R,S>
One hand: needs L, B, S or E
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: U R' E R2 E' R2 E R U' R' E' R2 E R2 E' R. Every algorithm above was run by our logic engine from that state and reaches "solved".