Chess Codex
Tree path 5 levels King's Pawn Game › Modern Defense › Modern Defense › Three Pawns Attack › Pterodactyl Defense: Austrian, Austriadactylus Western
  1. Chess Codex
  2. King's Pawn Game B00
  3. Modern Defense B06
  4. Modern Defense B06
  5. Three Pawns Attack B06
  6. Pterodactyl Defense: Austrian, Austriadactylus Western B06 you are here
B06

Pterodactyl Defense: Austrian, Austriadactylus Western

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Overview

Pterodactyl Defense: Austrian, Austriadactylus Western is a named branch in the Semi-Open Games group of chess theory, classified under ECO B06.

The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.

It begins with 8 plies and takes 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+ to reach the canonical position.

In the opening tree, this line branches off from Modern Defense: Three Pawns Attack, part of the broader King's Pawn Game system.

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ECO code
B06
Group
Semi-Open Games (B)
Plies
8
Parent
Modern Defense: Three Pawns Attack

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Related variations at the same level

Sister lines that share the same parent Modern Defense: Three Pawns Attack:

https://test.av-webdevs.com/openings/pterodactyl-defense-austrian-austriadactylus-western