ES 
EN
When the opponent has some damage left to put him under shield, don't use the minimum to close him.
Why?
When attacking an opponent's city, the extra damage is NOT counted, but the points are. This is extremely important when you give the opposing city a jackpot booster, as you maximize the points from that attack.
How should this be done?
When a rival city has, for example, only one damage left to put it under shield, use whenever you can the maximum attack available to maximize the points. That is to say, if a rival city has one damage left, and you put 10, you put it under shield the same but, nevertheless, it counts the points of the attack of 10. If we add a jackpot booster to this, we are optimizing the attack.
