import axelrod as axl
players = [axl.Cooperator(), axl.Defector(), axl.TitForTat(), axl.Grudger(), axl.AntiTitForTat()]
players.append(axl.Random())
tournament = axl.Tournament(players)
results = tournament.play()
plot = axl.Plot(results)
_=plot.winplot()
_ = plot.payoff()