Learn How to Promote: Mate in 2
This chess endgame puzzle is a classic example of how a passed pawn can decide the game immediately when the enemy king is boxed in. White’s queen and rook coordination create a mating net, but the real point is that the advanced pawn on e2 is the hidden resource. In positions like this, always ask whether a forcing check can drive the king into a square where promotion becomes unstoppable. The combination of check, capture, and promotion is often decisive.