code: def build_board_checkers():
      
      grd = Grid(8,8, ["B","W"])
      for c in range(4):
          grd.set_tile(0,(c*2) - 1, "B")
          grd.set_tile(1,(c*2) - 0, "B")
          grd.set_tile(6,(c*2) + 1, "W")
          grd.set_tile(7,(c*2) - 0, "W")
      print(grd)
  
      return grd
docs: builds a checkers starting board 
      Printing Grid
       0     B     0     B     0     B     0     B
       B     0     B     0     B     0     B     0
       0     0     0     0     0     0     0     0
       0     0     0     0     0     0     0     0
       0     0     0     0     0     0     0     0
       0     0     0     0     0     0     0     0
       0     W     0     W     0     W     0     W
       W     0     W     0     W     0     W     0