Interference — sever the line between two defenders
A tactical sacrifice that blocks the communication between enemy pieces.
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What is Interference?
干扰（有时称为遮挡）是一种战术主题，当一个棋子故意放置在两个敌方棋子之间，切断它们的连接或视线时，就会发生这种情况。这通常是通过牺牲格子上的一个棋子来实现的，该棋子会中断车、象或后的防御路径。干扰的主要目标是切断防御棋子与其所保护的方格、棋子或线的联系。一旦通信线路被破坏，攻击者就可以利用新创建的漏洞，通常会导致物质利益或被迫将死。干扰与封锁的概念密切相关，但封锁限制行动，而干扰则专门针对防线和协调。
How It Works — Step by Step
Cutting the Communication
White would love to play Re8# — but Black's bishop on a4 guards e8 along the a4–e8 diagonal. That single line is Black's lifeline. Interference means cutting it: White's knight is heading for c6, the square where that defence can be severed.
Diagonal Interference
Black's pinned rook on e4 hangs by one thread: the bishop on b7 defends it along the b7–e4 diagonal. Nd5! lands on that diagonal and cuts the defence. After Bxd5 cxd5 the rook is lost, and sliding it up the e-file runs into White's pieces — material falls either way.
The Interference Sacrifice
The sacrifice lands on the cutting square: Nc6! sits right on the defensive diagonal. If bxc6, the capturing pawn itself now blocks the bishop — Re8#. If Nxc6, then dxc6 re-plugs the line with a pawn. However Black captures, the blockage remains: that is the point of an interference sacrifice.
Classic Example: Blocking the Rooks
Black's rooks defend each other along the b-file — until Nb6! drops into the gap between them. If axb6 or cxb6, the capturing pawn blocks the file itself and Bxb4 wins a whole rook. And if either rook takes the knight, axb6 recaptures. The doubled rooks are severed whatever Black plays.
Interference in Your Openings
These openings frequently produce interference opportunities
西西里防御
在复杂的西西里棋变体中，例如纳多夫棋或龙棋，干扰战术经常出现在中局双方发起进攻的时候。牺牲一个棋子来阻挡 c 线上的防守车或长对角线上的主教可能是赢得比赛的资源。
View opening pageFamous Interference Games
这场精彩的比赛以雷蒂 (25. Be8!) 的惊人干扰牺牲为特色，她著名地阻止了博戈尔朱博夫的车之间的联系，立即导致了决定性的优势，并在最高水平上展示了这一战术主题的深远力量。
Tips for Club Players
将干扰视为切断两个防御敌方之间的电话线。
寻找敌方棋子从远处守卫关键方格的情况。
如果它永久地打破了对手的防御，不要害怕牺牲一块。
干扰通常与其他策略（例如固定或发现的攻击）配合得很好。
Frequently Asked Questions
Everything you need to know about interference
干扰是一种战术主题，您将一个棋子放置在两个敌方棋子之间以打破他们的通信线或防御线。这就像在防守者的道路上设置障碍，阻止他们完成自己的工作，通常需要做出牺牲。
格挡通常是指在攻击前放一个棋子来保护自己，而干扰则具体是指切断两个敌方棋子之间的联系。这是一种进攻策略，旨在破坏他们的协调，而不仅仅是保卫自己的棋子。
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