function snake_spy ( )

%*****************************************************************************80
%
%% snake_spy() displays the snakes and ladder matrix using spy().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    11 January 2021
%
%  Author:
%
%    John Burkardt
%
  a = snakes_matrix ( );

  spy ( a );
  title ( 'The Snakes and Ladders 101 Sparse Matrix' );

  return
end

