Ossuary Lift

Build a skull altar before turning its supporting feet into skeletons. Vertical bodies and a horizontal skull row have separate goals; the order matters. A shaft ending bottom-to-top F,R,S clears a skeleton. Three adjacent S at the same height clear a skull row, but only HEIGHT2 counts as the altar. Its first completion retracts both pedestals. Need two skeletons plus that altar from nine bones S,F,S,S,R,S,F,R,S. One reserve swaps once per drop; retrieve it when the queue ends. Wrong-height trios waste skulls. Full shafts and repeat reserve swaps reject freely. Twelve actions, no timer. Undo restores both rites, supports, reserve and queue.