D6l-

Notation
Nautilus 1LLL
LL Diamonds / D6
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:
R' L' R' U L R' L' R U' R B' R' B R L
My choice
15 HTM · 15 STM · 15 QTM
rotationless
<U,R,L,B>
Do R first on the case as drawn. · Cubemuch
(R) first, then:
R L R L' R U' R' L F R L' U' L R' F R' L'
17 HTM · 17 STM · 17 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: R' L R F' R L' U L R' F' L' R U R' L R' L' R' R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".