gistfile1.rb

board = [
  [nil, nil, nil, nil, nil, nil, nil, nil],
  ['wp', 'wp', 'wp', 'wp', 'wp', 'wp', 'wp', 'wp',],
  [nil, nil, nil, nil, nil, nil, nil, nil],
  [nil, nil, nil, nil, nil, nil, nil, nil],
  [nil, nil, nil, nil, nil, nil, nil, nil],
  [nil, nil, nil, nil, nil, nil, nil, nil],
  ['bp', 'bp', 'bp', 'bp', 'bp', 'bp', 'bp', 'bp',],
  [nil, nil, nil, nil, nil, nil, nil, nil],
]

def save_board(board)
  f = File.open('board.yml', 'w+')
  f.write(board.to_yaml)
  f.close
end

save_board(board)

def load(filename)
  @board = YAML.load_file(filename)
end

load('board.yml')