abstract sclass AI_Random_abstract extends AI {
  new Best<Submission> best;
  
  void go {
    if (round() == 1 && best.has()) // resubmit our best from last round
      submit(best.get());
    else {
      Submission guess = guess();
      updateBest(guess, submit(guess));
    }
  }
  
  void updateBest(Submission guess, double score) {
    best.put(guess, score);
  }
  
  abstract Submission guess();
}