This happens 20 times a day. Don't worry.
Send your opponent a copy of the rules.
https://www.chess.com/learn-how-to-play-chess

This happens 20 times a day. Don't worry.
Send your opponent a copy of the rules.
https://www.chess.com/learn-how-to-play-chess

How can i send this to him?
Tell him to read this forum thread. Send a direct message. Click on his avatar and then the button with an envelope.
CEO Erik ran a fun article reviewing all the confused and sometimes nasty complaints that chess.com has received over the years about this problem.
https://www.chess.com/article/view/his-pawn-cheated-and-killed-my-pawn
Let's face it, it's illogical. If I have a pawn on the sixth and I do a double move to land it on the eighth, which is my opponent's back rank, to turn it into a queen and maybe checkmate his king, and if my opponent had a pawn there then he'd be able to take it when it was going past it even though it would be taking nothing. Like taking thin air, and he's got my queen, which isn't fair.
Let's face it, it's illogical. If I have a pawn on the sixth and I do a double move to land it on the eighth, which is my opponent's back rank, to turn it into a queen and maybe checkmate his king, and if my opponent had a pawn there then he'd be able to take it when it was going past it even though it would be taking nothing. Like taking thin air, and he's got my queen, which isn't fair.
It seems like you still do not understand the rule, trust me it is a real rule, look it up
I didn't know about it for years.
Even an NM doesn't know the enpassant rule!!
A player who played with me told that he had reported me about an illegal move .But its just an enpassant. I think he don't know it.