Learn How to Skewer: Decisive Material Gain
This middlegame puzzle is a classic example of a crushing skewer: a long-range piece attacks a more valuable target in front of a lesser one, forcing a gain of material. The key idea is that active rook play on an open file can create a tactical refutation when the enemy king is exposed and the back rank is loose. In positions like this, the strongest move often comes with check, because forcing moves limit the defender’s choices and make the tactical pattern easier to execute.