PS
Algorithms (4)
U M U' L E' L' U L E l' U'
My choice
14 HTM · 11 STM · 14 QTM
rotationless
<U,L,M,E>
One hand: needs L, B, S or E
BLDDB, on 37 solvers' sheets
r U' M' U' M U' M' U' r' M
14 HTM · 10 STM · 14 QTM
3-gen
rotationless
oh
<U,R,M>
One hand: R, U and M
BLDDB, on 7 solvers' sheets
r' D' M' D' M D' M' D' R
12 HTM · 9 STM · 12 QTM
3-gen
rotationless
<R,D,M>
One hand: R, U and M with F or D
BLDDB, on 4 solvers' sheets
r' U' r2 S' r' U r S r' U' r' U r
15 HTM · 13 STM · 16 QTM
3-gen
rotationless
<U,R,S>
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' r U M U M' U M U r'. Every algorithm above was run by our logic engine from that state and reaches "solved".