OF

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

Algorithms (3)

4Uw U 2L U' 2R U 2L' U' 2R' 4Uw'
My choice
14 HTM · 10 STM · 14 QTM
3-gen
rotationless
<U,R,L>
One hand: needs L, B, S or E
BLDDB, on 1 solver's sheet
U 2F U' 2B U 2F' U' 2B'
12 HTM · 8 STM · 12 QTM
3-gen
rotationless
<U,F,B>
One hand: needs L, B, S or E
Cubemuch
2B' L 2D2 L' 2B L 2D2 L'
12 HTM · 8 STM · 16 QTM
3-gen
rotationless
<D,L,B>
One hand: needs L, B, S or E
Cubemuch

How this case is verified

The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: 2B U 2F U' 2B' U 2F' U'. Every algorithm above was run by our logic engine from that state and reaches "solved".