Learn How to Swallowtail Mate: Mate in 1
This puzzle is a classic middlegame mating finish where the attacking queen lands on a key square to deliver immediate checkmate. The position shows a weakened king shelter, with missing pawn cover and limited escape squares, which is exactly the kind of setup that makes a mating net possible. In classical chess, these patterns often appear when heavy pieces coordinate against an exposed king and the defender’s pieces are too passive to help.