anchor.diff:          });
         }
       }
  -    return null;
  +    return list;
     }
   }
   class Ai_smart extends Player {
  
positive.code:         });
        }
      }
      return null;
    }
  }
  class Ai_deff extends Player {
  
negative.code:         });
        }
      }
      return list;
    }
  }
  class Human extends Player {
  