Chess piece relative value
In chess, the chess pieces are often assigned certain point values that help determine how valuable a piece is strategically. These values are useful to players, but were originally introduced for computer chess, to help the computer figure out what moves to make. The king is assigned an arbitrarily high value above the total value of all the other pieces. In many chess algorithms, the king is assigned a value of 200 points.
The following is the most common assignment of point values.
| Piece | Value |
|---|---|
| King | 40+ (200) |
| Queen | 9 |
| Rook | 5 |
| Bishop | 3 |
| Knight | 3 |
| Pawn | 1 |
In addition, points are sometimes subtracted for weak positions. A common method of subtracting points is as follows
| Position | Value |
|---|---|
| Doubled pawns | -0.5 |
| Isolated pawn | -0.5 |
| Backward pawn | -0.5 |