Quiet Move Puzzle (Rated 1972): Defend — Save the Draw

This chess endgame is a practical defensive test: Black has a centralized king and a passed pawn, while White has an extra rook and more space. Despite the material imbalance, tablebase analysis confirms a theoretical draw. The key strategic idea is to keep the king active and coordinate it with the pawn, preventing the rook from winning the pawn cleanly or forcing king displacement. In reduced-material positions, activity and precision can matter more than the nominal material count.