Nimzo Indian Defense Rubinstein System Puzzle (Rated 1404): Exploit the Exposed King — Winning Combination

This puzzle is a classic exposed king attack in a sharp middlegame. White’s queen and rook coordinate to invade the king zone, forcing the defender into a passive line while the black king remains vulnerable. The key idea is not a random sacrifice, but a forcing sequence that uses checks to drag the king into a worse square and then wins material with a skewer. Positions like this reward seeing how king safety can outweigh material.