D2t
Notation
Nautilus 1LLL
LL Diamonds / D2
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Algorithms (1)
(R') first, then:
R' U' L R F L' R' L R F' R' L' U L R' L'
My choice
16 HTM · 16 STM · 16 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 R L' U' L R F R' L' R L F' R' L' U R R. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".