Tree path 4 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Hyperaccelerated Dragon
- Chess Codex
- King's Pawn Game B00
- Sicilian Defense B20
- Sicilian Defense B27
- Hyperaccelerated Dragon B27 you are here
Sicilian Defense: Hyperaccelerated Dragon
Overview
Sicilian Defense: Hyperaccelerated Dragon is a variation within the Semi-Open Games family, indexed as 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.
The line arises from 4 plies — specifically the moves 1. e4 c5 2. Nf3 g6.
It is a variation of Sicilian Defense, which itself descends from the root opening King's Pawn Game.
It branches into 3 notable variations — Pterodactyl Defense: Western, Pterodactyl, Sicilian Defense: Acton Extension, Sicilian Defense: Hyperaccelerated Dragon.
Together the deeper variations number 14 across the full subtree.
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
- B27
- Group
- Semi-Open Games (B)
- Plies
- 4
- Parent
- Sicilian Defense
- Direct variations
- 3
- Total in subtree
- 14
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.
Statistics from Lichess
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| Moves | Games | W / D / B |
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Source: Lichess Opening Explorer · cached
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Variations (3)
Show all 14 sub-variations (full subtree)
- B27 Pterodactyl Defense: Western, Pterodactyl 8-ply
- B27 Sicilian Defense: Acton Extension 6-ply
- B27 Sicilian Defense: Hyperaccelerated Dragon 5-ply
- 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