UB and FL
Flips
Without UF
Seen during memo: an edge in place with its colours the wrong way round.
Your status
Algorithms (2)
R' E R U R' E' R2 E2 R' U' R E2 R'
My choice
17 HTM · 13 STM · 22 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 15 solvers' sheets
R E2 R' U R E2 R2 E R U' R' E' R
17 HTM · 13 STM · 22 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 9 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' E R U R' E' R2 E2 R' U' R E2 R'. Every algorithm above was run by our logic engine from that state and reaches "solved".