Plain-English Definition
Rook activity often matters more than pawn count. An active rook checks, cuts off kings, attacks pawns, and supports passed pawns from behind.
Why It Matters
Rook endings are common, and activity is often the difference between winning and drawing.
Common Signs in Games
- A rook can enter the seventh rank.
- A passed pawn needs support from behind.
- The enemy king can be cut off.
Common Mistakes
- Defending passively from the front.
- Trading into a passive rook ending.
- Pushing pawns before activating the rook.