Definition:Chess/Rules/Capture/Pawn/Normal

Definition
Normal pawn capture is the usual way a chess pawn may capture a piece of the opposite colour. If one of the $2$ diagonally adjacent squares towards the opposing player is occupied by an opposing piece, the pawn may move into that square and capture that piece.

In the above diagram, the white pawn on $\text c 5$ may:
 * move to $\text b 6$ and capture the black bishop
 * move to $\text d 6$ and capture the black knight
 * move to $\text c 6$ and capture neither.

The black pawn on $\text e 7$, however, may move only to $\text e 6$, as neither $\text d 6$ nor $\text f 6$ contain an opposing piece.

Assuming there are other legal moves available, of course, then both pawns also have the option of staying where they are.