Crab Opening Puzzle (Rated 1213): Win Material — Discovered Attack
This middlegame puzzle is a classic discovered attack idea: one piece moves with tempo, opening a line for another piece to strike a more valuable target. The position also features a pinned king and a trapped piece, so the tactic is not just about winning a pawn but about forcing a major material gain. In practical terms, the key is to notice how the checking move creates a direct tactical threat while exposing the opponent’s king and loose back-rank pieces.