It ' s called bleesing hearth tax . <| sep |> Aha , it was Clinton ' s fault ! Those damn politicians and higher ups that I have no influence over , making decisions ruining my life ! Time to grow up people ? <| sep |> Another vote for Buff here . I own several in varying thickness for various conditions and I only ever combine them with my Airhole face mask on days of intense searing winds to cover my cheeks . <| sep |> If you watch it search , BFS works by exploring every path of length 1 , 2 , 3 . n until it finds a solution . Since it explores every path , that ' s where the stipulation comes from . The only thing I can think of is that your path ' s use of diagonals actually shortens it mathematically , but not visually . Still interesting !