D12r+
Notation
Nautilus 1LLL
LL Diamonds / D12
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' L R F R' L' R B L F' L' B'
My choice
12 HTM · 12 STM · 12 QTM
rotationless
<R,F,L,B>
Do R' first on the case as drawn. · Cubemuch
(R') first, then:
R' L R L' R U L R' L' R U' L R L'
14 HTM · 14 STM · 14 QTM
3-gen
rotationless
<U,R,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' L' U R' L R L' 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".