Gaining space - In a cramped position, having more pieces can actually be a disadvantage because the pieces get in the way of each other.Blunting an attack - When you are being attacked, often a well timed exchange will leave your opponent with too few pieces to keep up the attack.Removing a defender - Take when the piece being taken is providing an essential service for the opponent.Opening up the king's defenses - Take when taking back means moving a pawn that exposes the king.Doubling pawns - Take when taking back means the doubling (or tripling) of your opponent's pawns on the same file.exchanging a bishop for your opponent's Queen). Material advantage - Exchanging one of your pieces for a more valuable opponent's piece (e.g.Benefits can include, but are not limited to: This should however NOT be done for its own sake! Initiate an exchange only when it benefits you. In almost any game, a player will have the opportunity to capture one of his opponent's pieces in exchange for sacrificing or losing one of his own pieces. It is often advantageous to place the queen behind one or both rooks as it is a more valuable piece. This is known as Alekhine's gun (diagram at right) and can be extremely dangerous. Other batteries can be formed by rook-queen, bishop-queen, two knights or a bishop-pawn.Ī triple battery can be constructed with the queen and both rooks.

The most common kind of battery is the doubling of rooks on a file.

Batteries are formed when two or more pieces work together.

Wikipedia chess 4 move checkmate