Pin Puzzle (Rated 2267): Spot a Tactic — Rook Defense
In this chess endgame, the key idea is defensive rook activity. Black must address White’s advanced passed pawns while keeping pressure on the exposed king and maintaining coordination between the rooks. The best defensive concept places a rook where it can challenge the dangerous passer, limit promotion chances, and preserve counterplay against the king. Material is equal, so the position is decided by activity, timing, and accurate threat management rather than by a direct material win.