Learn How to Mate in 2: Double Check Tactic
This middlegame puzzle shows a classic mating net built around a double check. When the king is exposed and its defenders are overloaded or pinned, a forcing move can create immediate threats that cannot be met by capture or interposition in the usual way. The key idea is that the checking piece and the discovered line work together, leaving the king with almost no safe squares. In practical classical chess, these patterns often decide the game instantly.