Rubinstein Opening Classical Defense Puzzle (Rated 1256): Win Material — Decisive Kingside Attack
This middlegame puzzle shows how active pieces can overpower a king even when the material count is close. White’s pieces are coordinated around the enemy king, with a forcing check that drags the defender into a bad exchange. The key idea is not a random sacrifice, but a tactical refutation that exploits pins, overloaded defenders, and the vulnerability of the queen and bishop on the kingside. Once the first forcing move lands, the rest of the combination becomes straightforward and wins decisive material.