Learn How to Win a Chess Endgame: Rook Endgame
This chess endgame shows how active king and rook play can decide a seemingly equal rook ending. The key idea is to use activity, not just material count: the stronger side can force a favorable simplification by winning a loose rook and then converting with king activity. In classical chess, rook endgames often hinge on who controls key files, who has the more active king, and whose pawns become targets after the trade.