Tree path 5 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Hyperaccelerated Dragon › Sicilian Defense: Hyperaccelerated Dragon
- Caissa Codex
- King's Pawn Game B00
- Sicilian Defense B20
- Sicilian Defense B27
- Hyperaccelerated Dragon B27
- Sicilian Defense: Hyperaccelerated Dragon B27 you are here
Sicilian Defense: Hyperaccelerated Dragon
Overview
Sicilian Defense: Hyperaccelerated Dragon is a named branch in the Semi-Open Games group of chess theory, classified under ECO B27.
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.
Play reaches this position via 1. e4 c5 2. Nf3 g6 3. d4, after 5 plies of opening development.
In the opening tree, this line branches off from Sicilian Defense: Hyperaccelerated Dragon, part of the broader King's Pawn Game system.
3 named variations grow from this line, including Sicilian Defense: Dragon Variation, Classical Variation, Bernard Defense, Sicilian Defense: Frederico Variation, Sicilian Defense: Hyperaccelerated Pterodactyl.
In total, the branch covers 11 sub-variations across all depths.
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
- B27
- Group
- Semi-Open Games (B)
- Plies
- 5
- Direct variations
- 3
- Total in subtree
- 11
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
5,778,600 games · White 46.7% / Draw 5.4% / Black 48.0%
| Moves | Games | W / D / B |
|---|---|---|
| cxd4 | 5,105,104 | |
| Bg7 | 599,448 | |
| b6 | 23,779 | |
| e6 | 18,170 | |
| Nc6 | 9,379 | |
| d6 | 7,347 | |
| c4 | 6,669 | |
| Nf6 | 1,951 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:07:56
Write a description
Markdown supported (headings ###, bold, lists, links).
Submissions are reviewed before publishing.
Variations (3)
Show all 11 sub-variations (full subtree)
- B74 Sicilian Defense: Dragon Variation, Classical Variation, Bernard Defense 26-ply
- B27 Sicilian Defense: Frederico Variation 6-ply
- B27 Sicilian Defense: Hyperaccelerated Pterodactyl 6-ply
- B27 Modern Defense: Pterodactyl Variation 8-ply
- B27 Pterodactyl Defense: Western, Rhamphorhynchus 8-ply
- B27 Pterodactyl Defense: Sicilian, Anhanguera 9-ply
- B27 Pterodactyl Defense: Sicilian, Benoni Gambit 9-ply
- B27 Pterodactyl Defense: Sicilian, Rhamphorhynchus 9-ply
- B27 Pterodactyl Defense: Sicilian, Unpin 9-ply
- B27 Pterodactyl Defense: Sicilian, Pteranodon 11-ply
- B27 Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation 12-ply