Tree path 3 levels Queen's Pawn Game › Modern Defense › Pterodactyl Defense: Fianchetto, Queen Pterodactyl
- Caissa Codex
- Queen's Pawn Game A40
- Modern Defense A40
- Pterodactyl Defense: Fianchetto, Queen Pterodactyl A40 you are here
Pterodactyl Defense: Fianchetto, Queen Pterodactyl
Overview
Pterodactyl Defense: Fianchetto, Queen Pterodactyl is a variation within the Flank Openings family, indexed as ECO A40.
The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.
The line arises from 8 plies — specifically the moves 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+.
It is a variation of Queen's Pawn Game: Modern Defense, which itself descends from the root opening Queen's Pawn Game.
Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.
- ECO code
- A40
- Group
- Flank Openings (A)
- Plies
- 8
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
544 games · White 49.4% / Draw 4.4% / Black 46.1%
| Moves | Games | W / D / B |
|---|---|---|
| c3 | 344 | |
| Bd2 | 160 | |
| Nc3 | 26 | |
| Nbd2 | 8 | |
| Qd2 | 4 | |
| Kf1 | 2 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:44:41
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