Chess pieces have different values and abilities in the game.
Pawn can move 2 spaces of it's starting square and then only 1 after
the only time it can move diagonally when takeing opposite player piece.
Rook can move foward ,backwards,left,right .
knight can move in a L shape any direction.
Bishop moves diagonally any number of vacant squares.
Queen can mowv in any number of vacant squares backward,forward
King can only move 1 space unless it is makeing a move called
castle with a rook.
If these help u in any form please have a look at the link above