Pterodactyl Defense: Sicilian, Unpin

1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.Nc3 Qa5 5.Bd2

ECO B27

The Pterodactyl Defense: Sicilian, Unpin is a chess opening line in the Pterodactyl Defense complex, reached after 1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.Nc3 Qa5 5.Bd2.

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

The defining move Bd2 is chosen by White on move 5.

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