wu4, ~{Nq~}
         8      
8888888  8   8  
     8   888888 
 88 8   8    8  
   8  88 8  8   
   8      88    
8888888  8  88  
   8  8 8 88  8 
  88 8    8  8  
 8 8   88888888 
 8 8      8  8  
8  8      8  8  
8  8     8   8  
   8     8   8  
 888    8  888  
  8    8    8