D12o-

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
Recognition & spaced review

Algorithms (2)

(R) first, then:
R L F L' U' R' L F L' R U R U
My choice
13 HTM · 13 STM · 13 QTM
rotationless
<U,R,F,L>
Do R first on the case as drawn. · Cubemuch
(R) first, then:
B R' L R' L' R L F R L' R' L F' L' B'
15 HTM · 15 STM · 15 QTM
rotationless
<R,F,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: B L F L' R L R' F' L' R' L R L' R B' R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".