Modern Defense: Modern Pterodactyl

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

ECO B06

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

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

The defining move c5 is chosen by Black on move 3.

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.