Home › Openings › Trompowsky Attack › Trompowsky Attack: Edge Variation Trompowsky Attack: Edge Variation, Hergert Gambit ECO A45 · 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. f3 Nf6 5. Nc3 Bf5 6. e4 Practice this opening · Play against the computer