Learn How to Win Material: Chess Endgame Fork
This puzzle is a classic example of a forcing tactical sequence in a simplified middlegame/endgame transition. Black uses a check to drag the white king into a worse square, then follows with a knight fork that wins major material. The key idea is attraction: the king is lured onto a square where it becomes vulnerable to a double attack. In practical classical chess, these motifs often appear when rooks are active on open files and the enemy king is exposed.