Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation
ECO A04 · 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+
Related variations
- Modern Defense: Norwegian Defense
- Modern Defense: Bishop Attack
- Modern Defense: Two Knights Variation
- Modern Defense: Fianchetto Gambit
- Modern Defense: Lizard Defense, Pirc-Diemer Gambit
- Modern Defense: Standard Line
- Modern Defense: Three Pawns Attack
- Modern Defense: Westermann Gambit
- Modern Defense: Wind Gambit
- Modern Defense: Lizard Defense, Mittenberger Gambit
- Modern Defense: Modern Pterodactyl
- Modern Defense: Mongredien Defense, with Nc3
- Modern Defense: Mongredien Defense, with Nf3
- Modern Defense: Neo-Modern Defense
- Modern Defense: Standard Defense
- Modern Defense: Averbakh System
- Modern Defense: Geller's System
- Modern Defense: Pseudo-Austrian Attack
- Modern Defense: Kotov Variation
- Modern Defense: Pterodactyl Variation
- Modern Defense: Randspringer Variation
- Modern Defense: Semi-Averbakh Variation, Polish Variation
- Modern Defense: Anti-Modern
- Modern Defense: Averbakh Variation, Pseudo-Sämisch
- Modern Defense: Beefeater Variation
- Modern Defense: Dunworthy Variation
- Modern Defense: Gurgenidze Defense
- Modern Defense: Masur Gambit
- Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted
- Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined