Classical Chess Puzzle (Rated 1283): Coerce the King — Mate in 4
This chess endgame puzzle is a classic forcing attack where coercion drives the enemy king into a fatal net. White’s active rooks dominate the open files, and the advanced passed pawn helps restrict escape squares. The key idea is to use checks to keep the king exposed, then convert the pressure with a discovered attack and a bishop-led mating net. It is a strong example of how activity can outweigh material when the king is unsafe.