Sacrifice Puzzle (Rated 1182): Spot Mate in 2 — Mating Net

This puzzle is a classic middlegame mating net: the attacking side uses a forcing check to drag the king into a vulnerable line, then finishes with a direct queen attack. The key idea is not material gain, but coordination between pieces and the exposed king. Even when one side is materially behind, a well-timed sacrifice can create an immediate checkmate if the defender’s king has too few escape squares and the back line is overloaded.