The two fixed pieces are marked A and B. The black rock (used to move pieces to temporarily) is marked C.
 
Before you begin, move (5) out of the way, onto the black rock (C). Now assemble the tablets by adding the pieces in the numerical sequence detailed in the graphic. The top part of the graphic shows the loose pieces and at the bottom you can see where each piece fits.
 
This is not the only sequence in which to assemble the tablets, but it does make the 'action' hotspots less sensitive.
 
 

 
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