Hippopotamus Defense Other Variations Puzzle (Rated 1175): Crush with Discovered Check — Tactical Refutation

This middlegame puzzle shows a classic attacking pattern where a forcing sacrifice opens lines against the king and creates a discovered-check sequence. White’s pieces are coordinated around the enemy king, while Black’s king shelter is weakened and the back rank is vulnerable. The key idea is not a quiet improvement but a tactical refutation that wins material by dragging the king into a bad square and then using a knight fork to finish the combination. The position rewards calculation and pattern recognition.