Grob Opening Spike Puzzle (Rated 1284): Win the Rook — Tactical Refutation

This middlegame puzzle shows a classic tactical refutation built around king safety and a loose defender. White’s attack works because the black king is still in the center and the kingside pawn shield is weakened, while a key rook is overextended on the h-file. When a defender is removed, the rest of the position can collapse quickly. The idea is not a flashy mate, but a forcing sequence that wins material and leaves White with a decisive advantage.