Learn How to Win Material: Short Skewer
This middlegame puzzle from the Slav Defense shows how a seemingly active position can hide a tactical shot that wins material. The key idea is a short skewer: a forcing check or attack on a valuable target that drives the king into an awkward square and exposes a heavier piece behind it. In positions like this, activity and open lines matter more than raw material count, because one precise tactical sequence can overturn the balance quickly.