Tree path 8 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Hyperaccelerated Dragon › Sicilian Defense: Hyperaccelerated Dragon › Sicilian Defense: Hyperaccelerated Pterodactyl › Modern Defense: Pterodactyl Variation › Pterodactyl Defense: Sicilian, Unpin
- Chess Codex
- King's Pawn Game B00
- Sicilian Defense B20
- Sicilian Defense B27
- Hyperaccelerated Dragon B27
- Sicilian Defense: Hyperaccelerated Dragon B27
- Sicilian Defense: Hyperaccelerated Pterodactyl B27
- Modern Defense: Pterodactyl Variation B27
- Pterodactyl Defense: Sicilian, Unpin B27 you are here
Pterodactyl Defense: Sicilian, Unpin
Overview
Pterodactyl Defense: Sicilian, Unpin 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.
It is reached after 9 plies of play, with the move sequence 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2.
It is a variation of Modern Defense: Pterodactyl Variation, which itself descends from the root opening King's Pawn Game.
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
- 9
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
Loading…
| Moves | Games | W / D / B |
|---|
Source: Lichess Opening Explorer · cached
Description
Write a description
Markdown supported (headings ###, bold, lists, links).
Submissions are reviewed before publishing.