Neo Grunfeld Defense Interference in Chess

Neo Grunfeld Defense Interference is an interference motif that arises in the Neo Grunfeld Defense (often after moves like ...Nf6, ...g6, ...Bg7, and ...d5). The defining idea is that White can force a piece to block a critical line—commonly the c-file, d-file, or a diagonal supporting the Grunfeld counterplay—so the defender’s plan loses coordination. In practice, the “interfering” move either removes a defender’s tactical resource or makes a key recapture impossible on time.