Quiet Move Puzzle (Rated 2236): Defend — Rook Activity

This chess endgame tests the value of active defense when material is unbalanced. Black has the bishop pair and an extra minor piece, but White’s advanced queenside passed pawns create important counterplay. The key strategic idea is to coordinate the rook with those pawns while addressing the immediate danger to vulnerable pieces and pawns. Active rook placement can restrict the opposing king, defend critical squares, and make the passed pawn a lasting practical asset rather than allowing it to become a target.