Learn How to Spot: Swallowtail Mate
This puzzle comes from the King’s Gambit Accepted and shows a classic middlegame mating pattern: the swallowtail mate. The key idea is that the enemy king is boxed in by its own pieces and pawns, leaving only one tactical finish. In positions like this, material count matters far less than king safety. Even when the board looks balanced, a single forcing move can end the game immediately if the king’s escape squares are fully covered.