T2l-

Notation
Nautilus 1LLL
LL Trapezoids / T2
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Recognition & spaced review

Algorithms (2)

(R) first, then:
B Uw U BR' Uw' R Uw BR Uw' R' U' B' Uo Do Uo Do
My choice
12 HTM · 12 STM · 12 QTM
rotation
<BR,U,R,B>
Do R first on the case as drawn. · Cubemuch
(R) first, then:
R' U L F L' F' L' U' L F L F' L'
13 HTM · 13 STM · 13 QTM
rotationless
<U,R,F,L>
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: L F L' F' L' U L F L F' L' U' R R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".