NP
Algorithms (4)
l' U' R S R2 S' R U l
My choice
11 HTM · 9 STM · 12 QTM
rotationless
<U,R,L,S>
One hand: needs L, B, S or E
BLDDB, on 24 solvers' sheets
M' U' R S R2 S' R U M
13 HTM · 9 STM · 14 QTM
rotationless
<U,R,M,S>
One hand: needs L, B, S or E
BLDDB, on 20 solvers' sheets
E R U' R E' R2 E R U R' E'
15 HTM · 11 STM · 16 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
BLDDB, on 13 solvers' sheets
E' R' U' R E R2 E' R U R E
15 HTM · 11 STM · 16 QTM
3-gen
rotationless
<U,R,E>
One hand: needs L, B, S or E
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: M' U' R' S R2 S' R' U M. Every algorithm above was run by our logic engine from that state and reaches "solved".