T1b+
Notation
Nautilus 1LLL
LL Trapezoids / T1
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Algorithms (2)
(R) first, then:
R' Uw U B U' R U B' U' R' Uw' Uo Do
My choice
11 HTM · 11 STM · 11 QTM
3-gen
rotation
<U,R,B>
Do R first on the case as drawn. · Cubemuch
(R) first, then:
R' Lw R L' R L R Lw R' B' R B Lw
13 HTM · 13 STM · 13 QTM
3-gen
rotationless
<R,L,B>
Do R first on the case as drawn. · 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: Lw' B' R' B R Lw' R' L' R' L R' Lw' R R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".