Last Fort

Gridmapper:Last Fort: First part

(5,2)avv     aavv                                    avv     aavv

          fffffffffffffffffffffffffffffffffffff
          fffffffffffffffffffffffffffffffffffff
                            f
     aaaavv  ff aaavv                  f                 aaaavv   f aaavv
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       ff                   f                   ff
       fffffffffffffffffffffffffffffffffffffffffff
       nnnn                     f                    nnn
        nnnn                    f                   nnn
         nnnn                   f                  nnn
          nnnn                  f                 nnn
           nnnn                 f                nnn
            nnnn                f               nnn
             nnnn               f              nnn
              nnnn              f             nnn
               nnnn             f            nnn
                nnnn            f           nnn
                 nnnn           f          nnn
                  nnnn fffffffffffffffffffnnn(63,10,0)