I am only an amateur player, but have been playing for many years. Every now and then I come across people who are adamant that a pawn cannot put a king into check.
The last person who I discussed this with was a high school student who played school competitions and pretty much convinced me. So much so that I have now convinced my father, who taught me how to play over 20 years ago that a pawn cannot check or take another piece to put the king into check.
I've just done a Google search to clarify, although most pages say a pawn can put a king into check it has so many results that it has made me curious:
Where did the idea that a king cannot be put in check by a pawn come from?
Are there are competitions / set of rules / types of games where this rule is enforced in the modern game?
Further question, can a pawn also be moved to put a king into checkmate?