cache_1 = function
    cache_1 = 0
    cache_1 = cache_1 + LOCATION_HAND
    cache_1 = cache_1 + LOCATION_MZONE
    cache_1 = cache_1 + LOCATION_SZONE
    cache_1 = cache_1 + LOCATION_GRAVE
    cache_1 = cache_1 + LOCATION_REMOVED
    
    cache_1 = Duel.GetFieldGroupCount(1,cache_1,0)
    
    if cache_1 == 0 then
      return true
    else
      return false
      end
    end
  
  end