King – The most important piece on the board, the king can move one square in any direction.
Queen – The most powerful piece, the queen can move diagonally, horizontally, or vertically any number of squares.
Rook – Also known as a castle, the rook can move horizontally or vertically any number of squares.
Bishop – The bishop moves diagonally any number of squares.
Knight – The knight moves in an L-shape, two squares in one direction and then one square perpendicular to that.
Pawn – The least powerful piece, the pawn can only move forward one square at a time, except for on its first move when it can move two squares forward. Pawns capture diagonally one square forward. Pawns can also promote to another piece if they reach the opposite end of the board.