Chess concept reference
Interference
Block a defensive line between two enemy pieces.
The idea
Interference places a piece on a line so a defender can no longer protect a key square, piece, or mate defense.
Why it matters
Interference sharpens your eye for invisible defensive connections.
Recognize it
- Two defenders rely on the same line.
- A blocking move comes with tempo.
- A line piece is defending from far away.
Common mistakes
- Blocking your own best line.
- Choosing an interference square that can simply be captured.
- Missing stronger checks first.