The answer can be found in Tennis (Had been watching some Tennis on TV lately.) . The one with the advantage would try and score. The one being taken advantage, would attempt to get to deuce....i.e., stay twosome until two additional scores are achieved. As they say, in Tennis.... love-all.... love-15, love-30, love-40....but 50 is too old for love....After 40, pretty much the game is over....unless both are 40, and one gets an advantage.