2 Clarified with comments
source | link

There is absolutely nonever any difference in restrictions when a pawn queens, regarding pawns in the same file behind it. (ofOf course you can't overtake the pawn in front) [my rating: 1920]

There is absolutely no difference. (of course you can't overtake the pawn in front) [my rating: 1920]

There is never any difference in restrictions when a pawn queens, regarding pawns in the same file behind it. (Of course you can't overtake the pawn in front) [my rating: 1920]

1
source | link

There is absolutely no difference. (of course you can't overtake the pawn in front) [my rating: 1920]