Hmm, how do you solve that one, if you can’t take the stickers off???
 Rotate the top layer 45°. 
 Pry a corner piece up and out. 
 This frees up enough slack/wiggle room to disassemble the cube. 
 Disassemble the corner and edge pieces of the cube. Sort the pieces by face designs. 
 Reassemble the cube using the center pieces as a guide.