Learn How to Swallowtail Mate: Mate in 1
This chess puzzle is a classic mate in 1 built around a swallowtail mate pattern. The key idea is that the attacking queen delivers checkmate by coordinating with the board geometry so the enemy king has no escape squares, no blocks, and no safe capture. In practical classical chess, these motifs often appear when the king is boxed in by its own pieces and pawns, making a seemingly simple queen move decisive.