Home › Openings › Queen's Pawn Game › Queen's Pawn Game: London System Queen's Pawn Game: London System, Pterodactyl Variation ECO D02 · 1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Qa5+ Related variationsQueen's Pawn Game: London System, with e6 Practice this opening · Play against the computer