Tree path 3 levels Queen's Pawn Game › Modern Defense › Pterodactyl Defense: Central, Bogolubovia
- Caissa Codex
- Queen's Pawn Game A40
- Modern Defense A40
- Pterodactyl Defense: Central, Bogolubovia A42 you are here
Pterodactyl Defense: Central, Bogolubovia
Overview
Pterodactyl Defense: Central, Bogolubovia is a named branch in the Flank Openings group of chess theory, classified under ECO A42.
The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.
It begins with 10 plies and takes 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5 to reach the canonical position.
In the opening tree, this line branches off from Queen's Pawn Game: Modern Defense, part of the broader Queen's Pawn Game system.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- A42
- Group
- Flank Openings (A)
- Plies
- 10
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
164 games · White 50.0% / Draw 5.5% / Black 44.5%
| Moves | Games | W / D / B |
|---|---|---|
| Be3 | 112 | |
| d5 | 25 | |
| Bd2 | 11 | |
| dxc5 | 6 | |
| g3 | 3 | |
| a3 | 2 | |
| f3 | 2 | |
| Qd2 | 1 |
Source: Lichess Opening Explorer · cached 2026-09-26 02:11:31
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