MO

Edge comms
M first
From memo: the letter pair is the case.
Your status
Recognition & spaced review

Algorithms (4)

F' R E R2 E' R F
My choice
9 HTM · 7 STM · 10 QTM
3-gen
rotationless
<R,F,E>
One hand: needs L, B, S or E
BLDDB, on 27 solvers' sheets
r U' R S R2 S' R U r'
11 HTM · 9 STM · 12 QTM
3-gen
rotationless
<U,R,S>
One hand: needs L, B, S or E
BLDDB, on 15 solvers' sheets
r' D' R S' R2 S R D r
11 HTM · 9 STM · 12 QTM
3-gen
rotationless
<R,D,S>
One hand: needs L, B, S or E
BLDDB, on 5 solvers' sheets
R' E R U' R' E' R2 E R' U R' E' R
17 HTM · 13 STM · 18 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
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 U' R' S R2 S' R' U r'. Every algorithm above was run by our logic engine from that state and reaches "solved".