Chess Codex
Tree path 6 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Hyperaccelerated Dragon › Sicilian Defense: Hyperaccelerated Dragon › Sicilian Defense: Hyperaccelerated Pterodactyl
  1. Chess Codex
  2. King's Pawn Game B00
  3. Sicilian Defense B20
  4. Sicilian Defense B27
  5. Hyperaccelerated Dragon B27
  6. Sicilian Defense: Hyperaccelerated Dragon B27
  7. Sicilian Defense: Hyperaccelerated Pterodactyl B27 you are here
B27

Sicilian Defense: Hyperaccelerated Pterodactyl

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Overview

Sicilian Defense: Hyperaccelerated Pterodactyl is a specific line in the Semi-Open Games family (ECO B27), arising from a recognised theoretical position.

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 6 plies and takes 1. e4 c5 2. Nf3 g6 3. d4 Bg7 to reach the canonical position.

The line refines Sicilian Defense: Hyperaccelerated Dragon, which traces back to the root opening King's Pawn Game.

The line splits into 2 documented sub-systems: Modern Defense: Pterodactyl Variation, Pterodactyl Defense: Western, Rhamphorhynchus.

Together the deeper variations number 8 across the full subtree.

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ECO code
B27
Group
Semi-Open Games (B)
Plies
6
Parent
Sicilian Defense: Hyperaccelerated Dragon
Direct variations
2
Total in subtree
8

This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.

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Variations (2)

Related variations at the same level

Sister lines that share the same parent Sicilian Defense: Hyperaccelerated Dragon:

Show all 8 sub-variations (full subtree)

https://test.av-webdevs.com/openings/sicilian-defense-hyperaccelerated-pterodactyl