Modern Defense Bishop Attack Puzzle (Rated 871): Crush a Fork — Decisive Material Gain

This middlegame puzzle is a classic example of a crushing fork that wins material by exploiting king safety and loose pieces. White’s active knight jumps into a powerful outpost, creating a forcing check that also attacks key targets around the black king. The position is especially instructive because Black’s queen and knight are overloaded, while the rook on the back rank is nearly trapped. In classical chess, tactics like this often decide the game immediately.