public BaseFrame GetFrame(string s) => new Spare(BallReader.GetPins(s[0]));
public BaseFrame GetFrame(string s) => new Open( BallReader.GetPins(s[0]), BallReader.GetPins(s[1]) );
public BaseFrame GetFrame(string s) => new FinalStrike( BallReader.GetPins(s[1]), BallReader.GetPins(s[2]) );