Bird Opening Horsefly Defense Puzzle (Rated 1248): Skewer — Decisive Material Gain

This middlegame puzzle shows a classic tactical idea from the Bird Opening: a forcing check that creates a short skewer on the queen and rook line. Black’s active bishop and queen coordinate against White’s exposed king and loose pieces, turning a material edge into a concrete win. The key is that the check is not just a king move; it also opens a direct attack on a valuable piece behind it, making the position collapse into a winning combination.