13_3.rb

class Die
  def initialize
    roll
  end

  def roll
    @number_showing = 1 + rand(6)
  end

  def showing
    @number_showing
  end

  def cheat
    @number_showing = 6
  end
end
puts Die.new.showing
die = Die.new
die.roll
puts die.showing
puts die.showing
die.roll
puts die.showing
puts die.showing
puts die.cheat