Piece value

Piece value lets players compare material, meaning the pieces and pawns each side still has. The usual unit is one pawn. These numbers are not part of the rules and do not decide the game, but they provide a practical starting point for evaluating captures and piece exchanges.

Conventional values

• Pawn: 1 point.
• Knight: 3 points.
• Bishop: 3 points.
• Rook: 5 points.
• Queen: 9 points.

The king has no exchange value because it cannot be captured. When attacked it must escape check, and the game ends with checkmate. Its importance is absolute, although in the endgame it also acts as a mobile and active piece.

The values are relative. In an open position, a bishop may exploit long diagonals; in a blocked structure, a knight may have better routes. A rook without files, an exposed queen, or a trapped piece may perform below its nominal figure. Piece improvement, meaning relocating a piece to make it more useful, king safety, pawns, and threats all change the practical evaluation.

When calculating an exchange, count the material but also inspect the resulting position. Two combinations with the same point total may have very different mobility, coordination, and attacking chances.