Pterodactyl Defense: Western, Pterodactyl

1.e4 c5 2.Nf3 g6 3.c3 Bg7 4.d4 Qa5

ECO B27

The Pterodactyl Defense: Western, Pterodactyl is a chess opening line in the Pterodactyl Defense complex, reached after 1.e4 c5 2.Nf3 g6 3.c3 Bg7 4.d4 Qa5.

It is catalogued under code B27 in the Encyclopaedia of Chess Openings (ECO).

The defining move Qa5 is chosen by Black on move 4.

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.