Nimzowitsch Defense Interference in Chess

Nimzowitsch defense interference is a tactical motif where you “get in the way” of the opponent’s defensive piece or line that is crucial to holding the position in the Nimzowitsch Defense. A defining feature is that the defender’s control of a key square or file (often supporting …c5, …e5, or the queenside break) is blocked by a forcing move—typically a sacrifice, discovered attack, or a zwischenzug. The result is that the defense can’t respond to your threat because the critical defender is temporarily removed from its job.