Zukertort Opening Lisitsyn Gambit Deferred Puzzle (Rated 1457): Exploit a Discovered Attack — Crushing Middlegame Tactic
This puzzle is a classic middlegame example of a discovered attack, where one piece moves with tempo and opens a line for another attacker. The key idea is that the enemy king is already exposed, so a forcing move can create a direct threat while also improving the position of a long-range piece. In positions like this, tactical motifs often overlap: pins, skewers, and trapped pieces can all appear at once, turning a small initiative into a decisive material gain.