Mate In 3 Puzzle (Rated 1366): Mate in 3 — Pillsbury's Mate

This chess endgame puzzle is a classic mating net built around rook coordination and king restriction. White’s heavy pieces work together to force the enemy king into a narrow corridor, where every flight square is controlled. The key idea is not material gain, but converting a dominant position into a forced checkmate sequence. In classical chess, these patterns often appear when the king is exposed and the defender’s pieces are overloaded or poorly placed.