Bishops Opening Calabrese Countergambit Puzzle (Rated 845): Win with a Crushing Fork — Decisive Material Gain
This middlegame puzzle is a classic example of a crushing fork built around king safety and piece activity. White’s knight jumps into the enemy camp with tempo, forcing the king to respond while also creating a direct threat against a valuable piece. The position is especially instructive because the black queen is overextended and the king’s shelter is weakened, making tactical punishment possible even though Black is up material. The key idea is to use forcing moves to turn activity into a decisive gain.