IS15
Notation
Last bottom triple
LBT / In Slot
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Algorithms (1)
(R R) first, then:
BR' U' BR U R' BR' U' BR U
My choice
9 HTM · 9 STM · 9 QTM
3-gen
rotationless
<BR,U,R>
Do R R first on the case as drawn. · Cubemuch
How this case is verified
The source's tracked-sticker identities define this case; its setup is reconstructed and checked against them. Setup: Ro U' BR' U BR R U' BR' U BR R' R'. Every algorithm above was run by our logic engine from that state and reaches "lbt-solved".