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In chess, the exchange is the material difference of a rook for a minor piece (i.e. a bishop or knight). Having a rook for a minor piece is generally advantageous, since the rook is usually more valuable. A player who has a rook for a minor piece is said to be up the exchange, and the other player is down the exchange.
The exchange is worth: just under 2 pawns if it is unpaired R vs N, but less if the rook is paired, and a bit less still if the minor piece is an unpaired bishop; one pawn if it is paired R vs paired B; 2B + P = R + N with extra rooks on the board; 2N > R + 2P, especially with an extra pair of rooks; 2B = R + 3P with extra rooks on the board
In chess, an exchange [1] or trade of chess pieces is a series of closely related moves, typically sequential, in which the two players capture each other's pieces. Any type of pieces except the kings may possibly be exchanged, i.e. captured in an exchange, although a king can capture an opponent's piece.
This glossary of chess explains commonly used terms in chess, in alphabetical order.Some of these terms have their own pages, like fork and pin.For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific to chess problems, see Glossary of chess problems; for a list of named opening lines, see List of chess openings; for a list of chess-related games, see List of ...
The Nalimov tablebases, which use advanced compression techniques, require 7.05 GB of hard disk space for all 5-piece endings and 1.2 TB for 6-piece endings. [32] [54] The 7-piece Lomonosov tablebase requires 140 TB of storage space. Some computers play better overall if their memory is devoted instead to the ordinary search and evaluation ...
The Classic Bishop Exchange has Black's rook pawn advanced all the way to the middle rank 5 and White has defended the second file with a gold development. White initiates the standard bishop trade, and then, after Black captures the promoted bishop and White moves their silver up to defend the second file is when the Wrong Diagonal Bishop ...
In chess, a sacrifice is a move that gives up a piece with the objective of gaining tactical or positional compensation in other forms. A sacrifice could also be a deliberate exchange of a chess piece of higher value for an opponent's piece of lower value. Any chess piece except the king may be sacrificed. Because players usually try to hold on ...
Although Bishop Exchange openings are typically characterized by White advancing their rook pawn to the middle rank with P-85, which is the move that triggers Black's B-77 defense in the first place, there is a sort of reverse Bishop Exchange opening where Black advances their rook pawn up the second file to the 25 square, which similarly ...