Learn How to Promote: Advanced Pawn Crush
This chess endgame is all about turning an advanced pawn into a decisive force. The key idea is that a passed pawn can become more than a promotion threat: it can also create discovered attack and discovered check motifs that force the defender into passivity. Here, the side with the active king and rook coordination is trying to stop a dangerous passer, but the tactical shot uses a forcing capture to open lines and convert the advantage into promotion.