Learn How to Swallowtail Mate: Mate in 1
This puzzle is a classic example of a mating net in the middlegame, where the enemy king is exposed and the final blow comes from a forcing queen move. The key idea is that the king’s escape squares are already restricted by its own pieces and pawns, so a single checking move can end the game immediately. In classical chess, these short tactical finishes often appear when one side’s king safety has collapsed.