Chess opening
Modern Defense: Semi-Averbakh Variation, Pterodactyl VariationA04
The Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation is a chess opening classified under ECO code A04. It is reached after the moves:
1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+
Play it vs Stockfish Open in analysis board
Comes from
Main continuations
Related lines in the Modern Defense
- Modern Defense: Semi-Averbakh Variation, Polish Variation (A04)
- Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted (A04)
- Modern Defense: Beefeater Variation (A40)
- Modern Defense: Lizard Defense, Pirc-Diemer Gambit (A40)
- Modern Defense (A41)
- Modern Defense: Neo-Modern Defense (A41)
- Modern Defense: Averbakh System (A42)
- Modern Defense: Averbakh Variation, Pseudo-Sämisch (A42)
Train this opening
LibreChess runs Stockfish in your browser — play the Modern Defense against the engine at any strength, get hints, and review your game move by move afterwards. Free, no account needed. You can also add this line to your repertoire and drill it with spaced repetition.