Learn How to Spot Swallowtail Mate: Queen Endgame
This chess endgame puzzle is a classic mating net built around a centralized king and a queen that can deliver a final, forcing check. In queen endgames, one active queen can dominate the board when the enemy king has limited flight squares and its own pieces block escape routes. The key idea is to recognize when the king is boxed in by its own pawns and a single checking square becomes decisive. That is the essence of a swallowtail mate pattern.