The Real Tail End G15:
Complete Nautilus Puzzle where the last match made contains a tile from the tail end of the spiral
The tail end of the spiral is in the lower left corner. Spam the hint function and if it wants you to remove the tile that you need to save, use hint again. Shuffle and Undo are allowed, so if you are forced to remove the tile that you need to save for your last move (because there are no other moves available), utilize shuffle and undo.
The last match needs to include the bottom tile from the circled column in the image below: