D7b+
Notation
Nautilus 1LLL
LL Diamonds / D7
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' B L F' L' B' L F L' U
My choice
11 HTM · 11 STM · 11 QTM
rotationless
<U,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: U' L F' L' B L F L' B' U R R'. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".