Kreuzworträtsel F

Klicken Sie die Zahlen in dem Gitter an!
      1                   
    2               3        
        4                 
 5              6         7     
                      8   
               9          
                       
                  10       
                 11        
                12         
                       
            13             
14          15                 
                       
   16             17           
                       
     18                    
                       
                       
19                         
                       
    20