OL

Centres
O first
From memo: the letter pair is the case.
Your status
Recognition & spaced review

Algorithms (3)

R 2D' 2L' U2 2L 2D 2L' U2 2L R'
My choice
16 HTM · 10 STM · 18 QTM
rotationless
<U,R,D,L>
One hand: needs L, B, S or E
BLDDB, on 3 solvers' sheets
2L' U 2L' 2D 2L U2 2L' 2D' 2L U 2L
19 HTM · 11 STM · 20 QTM
3-gen
rotationless
<U,D,L>
One hand: needs L, B, S or E
BLDDB, on 2 solvers' sheets
S' Uw 2R' U 2L' U' 2R U 2L U' Uw' S
18 HTM · 12 STM · 18 QTM
rotationless
<U,R,L,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: 2L' U' 2L' 2D 2L U2 2L' 2D' 2L U' 2L. Every algorithm above was run by our logic engine from that state and reaches "solved".