public IPoints WinBall(AdvantagePoint opponentPoints) { throw new InvalidOperationException(); }
public IPoints WinBall(AdvantagePoint opponentPoints) { return(this); }
public IPoints WinBall(AdvantagePoint opponentPoints) { throw new InvalidOperationException(); }
public IPoints WinBall(AdvantagePoint opponentPoints) { return(this); }