Philidor Defense Swallowstail Mate Beginner Puzzle (Rated 866): Spot Mate in 1 — Swallowtail Mate
This puzzle is a classic mating net in a middlegame where the enemy king is exposed and the queen can deliver a direct finish. The key idea is that the king’s escape squares are already restricted by its own pieces and pawns, so a single forcing move ends the game immediately. Patterns like this often appear in classical chess and blindfold chess training because they reward fast pattern recognition rather than long calculation.