Learn How to Force Mate in 2: Queen Sacrifice
This chess endgame-style tactical puzzle is really a forcing middlegame attack: White uses the queen to create an immediate mating net against the enemy king. The key idea is that checks can override material count when the king has no safe squares and the defender is overloaded. Even though Black is materially better, the exposed coordination around the king makes the position tactically lost. In classical chess, these are the moments where calculation matters more than evaluation.