Queen's Pawn Game Modern Defense Puzzle (Rated 988): Win Material — Decisive Queen Sacrifice

This middlegame puzzle is about converting activity into a decisive material gain. White’s pieces are coordinated around the c-file, and the key idea is to exploit the alignment of the enemy rook and king. The position features a classic tactical pattern: a forcing queen sacrifice that opens the way for a rook to invade with check. In practical play, these are the moments where a quiet-looking advantage becomes concrete through calculation and forcing moves.