Good lord. That is the same thing! Lol.
Let me help you. So Follow
Right now:
Croatia has 3 points
Argentina has 1
Iceland has 1
If Argentina and Croatia tie that is one point a piece: so that would be Croatia 4 points. Argentina 2 points.
If Iceland beats Nigeria, that would be 4 points for Iceland, because they already had 1 point and get 3 points for the victory.
So the listing would be :
Croatia 4 points
Iceland 4 points
Argentina 2 points
Now if Croatia ties with Iceland, they would get a point a piece, both would have 5 points . And if Argentina beats Nigeria, they would get three points from the victory, giving them a total of 5 points.
So the listing would be :
Croatia 5 points
Iceland. 5 points
Argentina 5 points
Now, listen closely, if Croatia and Iceland have a better goal differential than Argentina, then Argentina would not go through.
This is why to avoid all that and control their own destiny, they need to win against Croatia.
You should be able to understand that. If you don’t, I can’t help you any further.