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Algorithms (4)
R2 F E R2 E' R2 F' R2
My choice
10 HTM · 8 STM · 14 QTM
3-gen
rotationless
<R,F,E>
One hand: needs L, B, S or E
BLDDB, on 39 solvers' sheets
R2 F' R2 E R2 E' F R2
10 HTM · 8 STM · 14 QTM
3-gen
rotationless
<R,F,E>
One hand: needs L, B, S or E
BLDDB, on 17 solvers' sheets
U' L F L' S' L F L' S L F2 L' U
15 HTM · 13 STM · 16 QTM
rotationless
<U,F,L,S>
One hand: needs L, B, S or E
BLDDB, on 4 solvers' sheets
u' R' U' M2 U R U' M2 U u
12 HTM · 10 STM · 16 QTM
3-gen
rotationless
oh
<U,R,M>
One hand: R, U and M
BLDDB, on 3 solvers' sheets
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: R2 F' E R2 E' R2 F R2. Every algorithm above was run by our logic engine from that state and reaches "solved".