When I started playing chess, I learned many of the rules of chess on my own. I was playing chess online, and then I realised that pawns can capture in such a fashion. At first, it was weird to me. Like, wow! How can a pawn capture like this?!
Then I read the theory of en passant. I have come to know that such kinds of rules exist in chess. By the way, it's an interesting rule.
Now here comes the main question: How can we teach this rule to a beginner (in a plain language or simplified way or associating any story to it)?