CHESS PIECE MOVES WIKIPEDIA PLUS

CHESS PIECE MOVES WIKIPEDIA PLUS

Nevertheless, he said that the bishop and knight ( minor pieces) are equal, the rook is worth a minor piece plus one or two pawns, and the queen is worth three minor pieces or two rooks. Edward Lasker said, 'It is difficult to compare the relative value of different pieces, as so much depends on the peculiarities of the position.'. The evaluation of the pieces depends on many parameters. In a less exotic case it explains why trading rooks in the presence of a queen-vs-3-minors imbalance favors the queen player, as the rooks hinder the queen, but not so much the minors. This effect causes 3 queens to badly lose against 7 knights (when both start behind a wall of pawns), even though the added piece values predict that the knights player is two knights short of equality. Chess-variant theorist Betza identified the 'leveling effect', which causes reduction of the value of stronger pieces in the presence of opponent weaker pieces, due to the latter interdicting access to part of the board for the former in order to prevent the value difference from evaporating by 1-for-1 trading.

Combinations of pieces do not always equal the sum of their parts for instance, two bishops are usually worth slightly more than a bishop plus a knight, and three minor pieces (nine points) are often slightly stronger than two rooks (ten points) or a queen (nine points). Overall, this makes it more powerful than a minor piece but less powerful than a rook, so its fighting value is worth about four points. It is better at defending such pieces than the knight is, and it is better at attacking them than the bishop is. The king is good at attacking and defending nearby pieces and pawns. The endgame is a different story, as there is less danger of checkmate, allowing the king to take a more active role. Chess engines usually assign the king an arbitrary large value such as 200 points or more to indicate that the inevitable loss of the king due to checkmate trumps all other considerations. The value of the king is undefined as it cannot be captured, let alone traded, during the course of the game. The oldest derivation of the standard values is due to the Modenese School ( Ercole del Rio, Giambattista Lolli, and Domenico Lorenzo Ponziani) in the 18th century and is partially based on the earlier work of Pietro Carrera. The following table is the most common assignment of point values.

Chess piece moves wikipedia