The enemy gathered a tank column to break through your defense in Line of Battle. You are ready to survive and mathematics will come to the rescue. You will see a numerical meaning over each tank. Next to the gun on both sides you will find four buttons of different colors with numbers from one to four. Press the button that corresponds to the number of the moving tank and it will be destroyed. If you make a mistake and click the wrong button, your defense in Line of Battle will fall. Before starting the game, choose the type of missiles that you will firing at a tank column.
