What are the special moves in chess called?

What are the special moves in chess called? These rules usually cover most games between beginners, but the time comes when you (or your opponents) have the possibility of playing a special move. Those moves are castling, promoting a pawn, and capturing en passant.

These rules usually cover most games between beginners, but the time comes when you (or your opponents) have the possibility of playing a special move. Those moves are castling, promoting a pawn, and capturing en passant.