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 outset. Some small magnetic sets, designed to be compact and/or for travel, have pieces more like those used in shogi and xiangqi – each piece being a similar flat token, with a symbol printed on it to identify the piece type. On computers, chess pieces are often 2D symbols on a 2D board, although some programs have 3D graphics engines with more traditional designs of chess pieces. Unicode contains symbols for chess pieces in both white and black. The value assigned to a piece attempts to represent the potential strength of the piece in the game. As the game develops,