Rubinstein Opening Puzzle (Rated 1118): Win Material — Discovered Attack

This middlegame puzzle shows a classic attacking idea: use a forcing sacrifice to pull a defender away and expose the enemy king. White’s pieces are active, with the queen and bishop coordinating against the kingside while Black’s queen is overloaded in the center. The key tactical point is that the attack is not just about checks; it is about removing a key defender so a stronger threat becomes possible. That is why the position is a decisive advantage rather than a simple trade.