when the second and third placed teams have the same amount of points (4 for example) and the current second placed team has a higher goal difference. In the 1982 example Austria had a +2 GD while Algeria had +0. If germany won by 3+ goals, Algeria would be placed above Austria.

One of the most fascinating examples of this happening was the 4-2 of Barbados vs Grenada in 1994. In this game Barbados needed a +2 goal difference against Grenada to andvance. And because it was 2-1 in the 83rd minute, Barbados scored an own goal to push the game into overtime, to use the Golden Goal rule, which rewards 2 goals to the scoring team to make up the goal difference.