Interference (chess) Interference (chess) In the game of chess, interference occurs when the line between an attacked piece and its defender is interrupted by sacrificially interposing a piece. It is a chess tactic which seldom arises, and is therefore often overlooked. Opportunities for interference are rare because the defended object must be more valuable than the sacrificed piece, and the interposition must itself represent a threat. In the position at left, White to play will apparently be obliged to retreat the knight from f5, because the squares to which it could advance are all guarded. However, the interference move 1.Nd6+ interrupts the
Chess piece Chess piece A chess piece, or chessman, is any of the six different movable objects used on a chessboard to play the game of chess. Each player begins with a total of sixteen pieces. The pieces that belong to each player are distinguished by color. The lighter colored pieces are referred to as "white," and the player that owns them, "White". The darker colored pieces are referred to as "black", and the player that owns them, "Black". The word "piece" has three meanings, depending on the context. The context should make the intended meaning clear . In the first context,