Queen's Pawn Game: London System, Pterodactyl Variation

1.d4 g6 2.Nf3 Bg7 3.Bf4 c5 4.c3 cxd4 5.cxd4 Qa5+

ECO D02

The Queen's Pawn Game: London System, Pterodactyl Variation is a chess opening line in the Queen's Pawn Game complex, reached after 1.d4 g6 2.Nf3 Bg7 3.Bf4 c5 4.c3 cxd4 5.cxd4 Qa5+.

It is catalogued under code D02 in the Encyclopaedia of Chess Openings (ECO).

The defining move Qa5+ is chosen by Black on move 5.

Do you want to learn openings?

Start with a GM-authored repertoire you study move by move, then practice against a human-like AI opponent:

• Catalan Opening
• King's Indian Defense with ...e5

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.