This is like a math lesson. Show your work!
If Spain beats Chile by one then Switzerland only needs to beat Honduras by 2 to knock Chile out OR even by one where the Swiss goals scored is two more than what Chile scored.
So if Chile loses 1-0 then if Swiss win 1-0 (then Chile advances on H2H because everything else is tied)
But if Chile loses 1-0 and Swiss win 2-1, the Swiss advance
Same with Chile losing 2-1 and swiss winning 3-2 and so on.
Got it?