T4r-
Notation
Nautilus 1LLL
LL Trapezoids / T4
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Algorithms (1)
R Lw R' Lw L' R' L' R Lw' L R Lw' B L B'
My choice
15 HTM · 15 STM · 15 QTM
3-gen
rotationless
<R,L,B>
Cubemuch
How this case is verified
The source's case image defines this case; its setup is reconstructed and checked against that independent pattern. Setup: R B L' B' Lw R' L' Lw R' L R L Lw' R Lw' R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".