Pawn is a very weakest but interesting piece in chess. Each player has 8 pawns in one game.
How does it move?
As the game starts pawn has two choices. Either it can move one step ahead or it can move two steps. The two steps can only be moved when it is the starting square. After that, it can only move one step. They never go sideways, or backward.
How it captures?
Pawns capture diagonally. They cannot attack forward. It is different from how they move. If there is a piece in front of the pawn and there are no captures also, the pawn gets stuck there.
One thing to note here is that if a pawn is on its starting square and it can only move two steps forward at once. It cannot go one step forward and then capture a piece on its diagonal on the second move in one turn. A combination of forwarding square and capture is not allowed.
Pawns might be considered as the weakest piece of chess but when they all work together as a team they can win the game for you. Use them wisely and make them your power and the game is all yours.