D7r+
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 (3)
(R') first, then:
R' L' R' B' R Lw B R' B' R Lw' B L
My choice
13 HTM · 13 STM · 13 QTM
3-gen
rotationless
<R,L,B>
Do R' first on the case as drawn. · Cubemuch
(R') first, then:
R' L' R' B' R Lw L' B R' B' R Lw' L B L
15 HTM · 15 STM · 15 QTM
3-gen
rotationless
<R,L,B>
Do R' first on the case as drawn. · Cubemuch
(R') first, then:
L' R' L R' F R L' U' R' L F L' R U' R L
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: R L' B' L' Lw R' B R B' L Lw' R' B R L R R. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".