En passant

I was playing black a while ago and white moved g4. Isn't this the moment when the en passant rule is applied? I don't seem to have the option to take with the bishop in the gameplay. I mean, how do I clic to take?

only pawns can take en passant

^ Lightsss is right. For more information, here's the article on capturing en passant:

en.wikipedia.org/wiki/En_passant

I thought so. I just didn't have the complete information. Thanks for your answers.