Modern Defense Standard Line Intermediate Puzzle (Rated 1158): Crush the King — Decisive Sacrifice

This middlegame puzzle shows how active pieces can overwhelm a king stuck in the center. White’s rooks, queen, and bishop coordinate on open lines to create a forcing attack, even though Black has extra material. The key idea is a sacrifice that opens the e-file and exposes the king to repeated checks. In classical chess, king safety often outweighs material when the opponent’s pieces are undeveloped and the center is vulnerable.