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 each of the two players begins with the following sixteen pieces in a standard game: The rules of chess prescribe the types of move a player can make with each type of chess piece. Each piece type moves in a different way. During play, the players take turns moving one of their own chess pieces. Pieces other than pawns capture in the same way that they move. A capturing piece replaces the opponent piece on its square, except for an "en passant" capture. Captured pieces are immediately removed from the game. A square may hold only one piece at any