Chess Tactics part 1 - Fork, Pin, Skewer, Battery, Discovered attack

FORK:

A fork is a chess tactic that employs one piece to attack two or more enemy pieces at the same time

Pieces used: Any piece


PIN:

A pin is a chess tactic which prevents the movement of an enemy piece because it exposes the king or another more valueble piece

Pieces used: bishop, rook, queen



SKEWER:

A skewer is a chess tactic that attacks two opponent pieces in a file, rank, or diagonal

Also called thrust, reverse pin

Pieces used: queen, rook, bishop



BATTERY:

A battery is a chess tactic that involves a formation consisting of two or more pieces on the same rank, file, or diagonal

Pieces used: queen, rook, bishop



DISCOVERED ATTACK:

A discovered attack is a chess tactic where in one piece is uncovered or moves out of the way of another attacking piece resulting in discovered check, discovered checkmate or with mate threat, discovered attack or check with capture, or double check

Pieces used: any combination of pieces