Learn How to Swallowtail Mate: Mate in 2
This chess endgame puzzle is a classic forcing sequence where the queen creates a mating net by checking the king and restricting every escape square. The key idea is not material gain, but coordination: one forcing move pulls the king into a worse square, and the next move finishes the attack with a direct checkmate. In classical chess, these short tactical finishes often appear when the enemy king is exposed and your queen can dominate the board.