Pterodactyl Defense: Eastern, Benoni

1.d4 g6 2.e4 Bg7 3.Nc3 c5 4.d5

ECO B06

The Pterodactyl Defense: Eastern, Benoni is a chess opening line in the Pterodactyl Defense complex, reached after 1.d4 g6 2.e4 Bg7 3.Nc3 c5 4.d5.

It is catalogued under code B06 in the Encyclopaedia of Chess Openings (ECO).

The defining move d5 is chosen by White 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.