In short
No enemy pawn stands in front of the b‑pawn or on the files beside it. It’s a passed pawn, and only pieces can stop it.
What you learn here
- A passed pawn has no enemy pawns in front or beside it.
- Push your passers; blockade theirs.
No enemy pawn stands in front of the b‑pawn or on the files beside it. It’s a passed pawn, and only pieces can stop it.